879357fdb0
Summary: A current limitation of backups is that you don't know the exact database state of when the backup was taken. With this new feature, you can at least inspect the backup's DB state without restoring it by opening it as a read-only DB. Rather than add something like OpenAsReadOnlyDB to the BackupEngine API, which would inhibit opening stackable DB implementations read-only (if/when their APIs support it), we instead provide a DB name and Env that can be used to open as a read-only DB. Possible follow-up work: * Add a version of GetBackupInfo for a single backup. * Let CreateNewBackup return the BackupID of the newly-created backup. Implementation details: Refactored ChrootFileSystem to split off new base class RemapFileSystem, which allows more general remapping of files. We use this base class to implement BackupEngineImpl::RemapSharedFileSystem. To minimize API impact, I decided to just add these fields `name_for_open` and `env_for_open` to those set by GetBackupInfo when include_file_details=true. Creating the RemapSharedFileSystem adds a bit to the memory consumption, perhaps unnecessarily in some cases, but this has been mitigated by (a) only initialize the RemapSharedFileSystem lazily when GetBackupInfo with include_file_details=true is called, and (b) using the existing `shared_ptr<FileInfo>` objects to hold most of the mapping data. To enhance API safety, RemapSharedFileSystem is wrapped by new ReadOnlyFileSystem which rejects any attempts to write. This uncovered a couple of places in which DB::OpenForReadOnly would write to the filesystem, so I fixed these. Added a release note because this affects logging. Additional minor refactoring in backupable_db.cc to support the new functionality. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8142 Test Plan: new test (run with ASAN and UBSAN), added to stress test and ran it for a while with amplified backup_one_in Reviewed By: ajkr Differential Revision: D27535408 Pulled By: pdillinger fbshipit-source-id: 04666d310aa0261ef6b2385c43ca793ce1dfd148
2680 lines
98 KiB
C++
2680 lines
98 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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//
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#ifdef GFLAGS
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#include "db_stress_tool/db_stress_common.h"
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#include "db_stress_tool/db_stress_compaction_filter.h"
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#include "db_stress_tool/db_stress_driver.h"
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#include "db_stress_tool/db_stress_table_properties_collector.h"
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#include "rocksdb/convenience.h"
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#include "rocksdb/sst_file_manager.h"
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#include "rocksdb/types.h"
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#include "util/cast_util.h"
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#include "utilities/backupable/backupable_db_impl.h"
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#include "utilities/fault_injection_fs.h"
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namespace ROCKSDB_NAMESPACE {
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StressTest::StressTest()
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: cache_(NewCache(FLAGS_cache_size)),
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compressed_cache_(NewLRUCache(FLAGS_compressed_cache_size)),
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filter_policy_(
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FLAGS_bloom_bits >= 0
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? FLAGS_use_ribbon_filter
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? NewExperimentalRibbonFilterPolicy(FLAGS_bloom_bits)
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: FLAGS_use_block_based_filter
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? NewBloomFilterPolicy(FLAGS_bloom_bits, true)
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: NewBloomFilterPolicy(FLAGS_bloom_bits, false)
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: nullptr),
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db_(nullptr),
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#ifndef ROCKSDB_LITE
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txn_db_(nullptr),
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#endif
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clock_(db_stress_env->GetSystemClock().get()),
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new_column_family_name_(1),
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num_times_reopened_(0),
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db_preload_finished_(false),
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cmp_db_(nullptr) {
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if (FLAGS_destroy_db_initially) {
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std::vector<std::string> files;
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db_stress_env->GetChildren(FLAGS_db, &files);
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for (unsigned int i = 0; i < files.size(); i++) {
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if (Slice(files[i]).starts_with("heap-")) {
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db_stress_env->DeleteFile(FLAGS_db + "/" + files[i]);
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}
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}
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Options options;
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options.env = db_stress_env;
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// Remove files without preserving manfiest files
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#ifndef ROCKSDB_LITE
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const Status s = !FLAGS_use_blob_db
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? DestroyDB(FLAGS_db, options)
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: blob_db::DestroyBlobDB(FLAGS_db, options,
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blob_db::BlobDBOptions());
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#else
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const Status s = DestroyDB(FLAGS_db, options);
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#endif // !ROCKSDB_LITE
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if (!s.ok()) {
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fprintf(stderr, "Cannot destroy original db: %s\n", s.ToString().c_str());
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exit(1);
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}
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}
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}
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StressTest::~StressTest() {
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for (auto cf : column_families_) {
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delete cf;
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}
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column_families_.clear();
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delete db_;
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assert(secondaries_.size() == secondary_cfh_lists_.size());
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size_t n = secondaries_.size();
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for (size_t i = 0; i != n; ++i) {
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for (auto* cf : secondary_cfh_lists_[i]) {
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delete cf;
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}
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secondary_cfh_lists_[i].clear();
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delete secondaries_[i];
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}
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secondaries_.clear();
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for (auto* cf : cmp_cfhs_) {
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delete cf;
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}
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cmp_cfhs_.clear();
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delete cmp_db_;
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}
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std::shared_ptr<Cache> StressTest::NewCache(size_t capacity) {
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if (capacity <= 0) {
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return nullptr;
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}
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if (FLAGS_use_clock_cache) {
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auto cache = NewClockCache((size_t)capacity);
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if (!cache) {
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fprintf(stderr, "Clock cache not supported.");
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exit(1);
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}
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return cache;
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} else {
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return NewLRUCache((size_t)capacity);
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}
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}
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std::vector<std::string> StressTest::GetBlobCompressionTags() {
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std::vector<std::string> compression_tags{"kNoCompression"};
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if (Snappy_Supported()) {
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compression_tags.emplace_back("kSnappyCompression");
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}
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if (LZ4_Supported()) {
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compression_tags.emplace_back("kLZ4Compression");
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}
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if (ZSTD_Supported()) {
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compression_tags.emplace_back("kZSTD");
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}
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return compression_tags;
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}
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bool StressTest::BuildOptionsTable() {
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if (FLAGS_set_options_one_in <= 0) {
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return true;
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}
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std::unordered_map<std::string, std::vector<std::string>> options_tbl = {
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{"write_buffer_size",
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{ToString(options_.write_buffer_size),
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ToString(options_.write_buffer_size * 2),
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ToString(options_.write_buffer_size * 4)}},
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{"max_write_buffer_number",
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{ToString(options_.max_write_buffer_number),
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ToString(options_.max_write_buffer_number * 2),
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ToString(options_.max_write_buffer_number * 4)}},
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{"arena_block_size",
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{
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ToString(options_.arena_block_size),
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ToString(options_.write_buffer_size / 4),
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ToString(options_.write_buffer_size / 8),
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}},
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{"memtable_huge_page_size", {"0", ToString(2 * 1024 * 1024)}},
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{"max_successive_merges", {"0", "2", "4"}},
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{"inplace_update_num_locks", {"100", "200", "300"}},
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// TODO(ljin): enable test for this option
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// {"disable_auto_compactions", {"100", "200", "300"}},
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{"soft_rate_limit", {"0", "0.5", "0.9"}},
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{"hard_rate_limit", {"0", "1.1", "2.0"}},
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{"level0_file_num_compaction_trigger",
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{
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ToString(options_.level0_file_num_compaction_trigger),
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ToString(options_.level0_file_num_compaction_trigger + 2),
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ToString(options_.level0_file_num_compaction_trigger + 4),
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}},
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{"level0_slowdown_writes_trigger",
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{
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ToString(options_.level0_slowdown_writes_trigger),
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ToString(options_.level0_slowdown_writes_trigger + 2),
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ToString(options_.level0_slowdown_writes_trigger + 4),
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}},
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{"level0_stop_writes_trigger",
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{
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ToString(options_.level0_stop_writes_trigger),
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ToString(options_.level0_stop_writes_trigger + 2),
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ToString(options_.level0_stop_writes_trigger + 4),
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}},
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{"max_compaction_bytes",
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{
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ToString(options_.target_file_size_base * 5),
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ToString(options_.target_file_size_base * 15),
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ToString(options_.target_file_size_base * 100),
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}},
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{"target_file_size_base",
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{
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ToString(options_.target_file_size_base),
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ToString(options_.target_file_size_base * 2),
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ToString(options_.target_file_size_base * 4),
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}},
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{"target_file_size_multiplier",
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{
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ToString(options_.target_file_size_multiplier),
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"1",
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"2",
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}},
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{"max_bytes_for_level_base",
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{
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ToString(options_.max_bytes_for_level_base / 2),
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ToString(options_.max_bytes_for_level_base),
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ToString(options_.max_bytes_for_level_base * 2),
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}},
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{"max_bytes_for_level_multiplier",
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{
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ToString(options_.max_bytes_for_level_multiplier),
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"1",
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"2",
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}},
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{"max_sequential_skip_in_iterations", {"4", "8", "12"}},
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};
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if (FLAGS_allow_setting_blob_options_dynamically) {
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options_tbl.emplace("enable_blob_files",
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std::vector<std::string>{"false", "true"});
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options_tbl.emplace("min_blob_size",
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std::vector<std::string>{"0", "8", "16"});
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options_tbl.emplace("blob_file_size",
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std::vector<std::string>{"1M", "16M", "256M", "1G"});
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options_tbl.emplace("blob_compression_type", GetBlobCompressionTags());
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options_tbl.emplace("enable_blob_garbage_collection",
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std::vector<std::string>{"false", "true"});
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options_tbl.emplace(
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"blob_garbage_collection_age_cutoff",
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std::vector<std::string>{"0.0", "0.25", "0.5", "0.75", "1.0"});
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}
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options_table_ = std::move(options_tbl);
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for (const auto& iter : options_table_) {
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options_index_.push_back(iter.first);
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}
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return true;
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}
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void StressTest::InitDb() {
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uint64_t now = clock_->NowMicros();
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fprintf(stdout, "%s Initializing db_stress\n",
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clock_->TimeToString(now / 1000000).c_str());
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PrintEnv();
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Open();
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BuildOptionsTable();
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}
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void StressTest::FinishInitDb(SharedState* shared) {
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if (FLAGS_read_only) {
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uint64_t now = clock_->NowMicros();
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fprintf(stdout, "%s Preloading db with %" PRIu64 " KVs\n",
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clock_->TimeToString(now / 1000000).c_str(), FLAGS_max_key);
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PreloadDbAndReopenAsReadOnly(FLAGS_max_key, shared);
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}
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if (FLAGS_enable_compaction_filter) {
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auto* compaction_filter_factory =
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reinterpret_cast<DbStressCompactionFilterFactory*>(
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options_.compaction_filter_factory.get());
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assert(compaction_filter_factory);
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compaction_filter_factory->SetSharedState(shared);
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fprintf(stdout, "Compaction filter factory: %s\n",
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compaction_filter_factory->Name());
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}
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}
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bool StressTest::VerifySecondaries() {
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#ifndef ROCKSDB_LITE
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if (FLAGS_test_secondary) {
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uint64_t now = clock_->NowMicros();
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fprintf(stdout, "%s Start to verify secondaries against primary\n",
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clock_->TimeToString(static_cast<uint64_t>(now) / 1000000).c_str());
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}
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for (size_t k = 0; k != secondaries_.size(); ++k) {
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Status s = secondaries_[k]->TryCatchUpWithPrimary();
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if (!s.ok()) {
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fprintf(stderr, "Secondary failed to catch up with primary\n");
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return false;
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}
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ReadOptions ropts;
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ropts.total_order_seek = true;
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// Verify only the default column family since the primary may have
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// dropped other column families after most recent reopen.
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std::unique_ptr<Iterator> iter1(db_->NewIterator(ropts));
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std::unique_ptr<Iterator> iter2(secondaries_[k]->NewIterator(ropts));
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for (iter1->SeekToFirst(), iter2->SeekToFirst();
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iter1->Valid() && iter2->Valid(); iter1->Next(), iter2->Next()) {
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if (iter1->key().compare(iter2->key()) != 0 ||
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iter1->value().compare(iter2->value())) {
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fprintf(stderr,
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"Secondary %d contains different data from "
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"primary.\nPrimary: %s : %s\nSecondary: %s : %s\n",
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static_cast<int>(k),
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iter1->key().ToString(/*hex=*/true).c_str(),
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iter1->value().ToString(/*hex=*/true).c_str(),
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iter2->key().ToString(/*hex=*/true).c_str(),
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iter2->value().ToString(/*hex=*/true).c_str());
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return false;
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}
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}
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if (iter1->Valid() && !iter2->Valid()) {
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fprintf(stderr,
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"Secondary %d record count is smaller than that of primary\n",
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static_cast<int>(k));
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return false;
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} else if (!iter1->Valid() && iter2->Valid()) {
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fprintf(stderr,
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"Secondary %d record count is larger than that of primary\n",
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static_cast<int>(k));
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return false;
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}
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}
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if (FLAGS_test_secondary) {
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uint64_t now = clock_->NowMicros();
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fprintf(stdout, "%s Verification of secondaries succeeded\n",
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clock_->TimeToString(static_cast<uint64_t>(now) / 1000000).c_str());
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}
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#endif // ROCKSDB_LITE
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return true;
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}
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Status StressTest::AssertSame(DB* db, ColumnFamilyHandle* cf,
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ThreadState::SnapshotState& snap_state) {
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Status s;
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if (cf->GetName() != snap_state.cf_at_name) {
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return s;
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}
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ReadOptions ropt;
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ropt.snapshot = snap_state.snapshot;
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Slice ts;
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if (!snap_state.timestamp.empty()) {
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ts = snap_state.timestamp;
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ropt.timestamp = &ts;
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}
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PinnableSlice exp_v(&snap_state.value);
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exp_v.PinSelf();
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PinnableSlice v;
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s = db->Get(ropt, cf, snap_state.key, &v);
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if (!s.ok() && !s.IsNotFound()) {
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return s;
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}
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if (snap_state.status != s) {
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return Status::Corruption(
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"The snapshot gave inconsistent results for key " +
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ToString(Hash(snap_state.key.c_str(), snap_state.key.size(), 0)) +
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" in cf " + cf->GetName() + ": (" + snap_state.status.ToString() +
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") vs. (" + s.ToString() + ")");
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}
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if (s.ok()) {
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if (exp_v != v) {
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return Status::Corruption("The snapshot gave inconsistent values: (" +
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exp_v.ToString() + ") vs. (" + v.ToString() +
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")");
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}
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}
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if (snap_state.key_vec != nullptr) {
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// When `prefix_extractor` is set, seeking to beginning and scanning
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// across prefixes are only supported with `total_order_seek` set.
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ropt.total_order_seek = true;
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std::unique_ptr<Iterator> iterator(db->NewIterator(ropt));
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std::unique_ptr<std::vector<bool>> tmp_bitvec(
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new std::vector<bool>(FLAGS_max_key));
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for (iterator->SeekToFirst(); iterator->Valid(); iterator->Next()) {
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uint64_t key_val;
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if (GetIntVal(iterator->key().ToString(), &key_val)) {
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(*tmp_bitvec.get())[key_val] = true;
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}
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}
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if (!std::equal(snap_state.key_vec->begin(), snap_state.key_vec->end(),
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tmp_bitvec.get()->begin())) {
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return Status::Corruption("Found inconsistent keys at this snapshot");
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}
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}
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return Status::OK();
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}
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void StressTest::VerificationAbort(SharedState* shared, std::string msg,
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Status s) const {
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fprintf(stderr, "Verification failed: %s. Status is %s\n", msg.c_str(),
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s.ToString().c_str());
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shared->SetVerificationFailure();
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}
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void StressTest::VerificationAbort(SharedState* shared, std::string msg, int cf,
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int64_t key) const {
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auto key_str = Key(key);
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Slice key_slice = key_str;
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fprintf(stderr,
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"Verification failed for column family %d key %s (%" PRIi64 "): %s\n",
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cf, key_slice.ToString(true).c_str(), key, msg.c_str());
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shared->SetVerificationFailure();
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}
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void StressTest::PrintStatistics() {
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if (dbstats) {
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fprintf(stdout, "STATISTICS:\n%s\n", dbstats->ToString().c_str());
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}
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if (dbstats_secondaries) {
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fprintf(stdout, "Secondary instances STATISTICS:\n%s\n",
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dbstats_secondaries->ToString().c_str());
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}
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}
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// Currently PreloadDb has to be single-threaded.
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void StressTest::PreloadDbAndReopenAsReadOnly(int64_t number_of_keys,
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SharedState* shared) {
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WriteOptions write_opts;
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write_opts.disableWAL = FLAGS_disable_wal;
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if (FLAGS_sync) {
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write_opts.sync = true;
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}
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char value[100];
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int cf_idx = 0;
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Status s;
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for (auto cfh : column_families_) {
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for (int64_t k = 0; k != number_of_keys; ++k) {
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std::string key_str = Key(k);
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Slice key = key_str;
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size_t sz = GenerateValue(0 /*value_base*/, value, sizeof(value));
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Slice v(value, sz);
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shared->Put(cf_idx, k, 0, true /* pending */);
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if (FLAGS_use_merge) {
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if (!FLAGS_use_txn) {
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s = db_->Merge(write_opts, cfh, key, v);
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} else {
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#ifndef ROCKSDB_LITE
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Transaction* txn;
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s = NewTxn(write_opts, &txn);
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if (s.ok()) {
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s = txn->Merge(cfh, key, v);
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if (s.ok()) {
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s = CommitTxn(txn);
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}
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}
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#endif
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}
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} else {
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if (!FLAGS_use_txn) {
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std::string ts_str;
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Slice ts;
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if (FLAGS_user_timestamp_size > 0) {
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ts_str = NowNanosStr();
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ts = ts_str;
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write_opts.timestamp = &ts;
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}
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s = db_->Put(write_opts, cfh, key, v);
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} else {
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#ifndef ROCKSDB_LITE
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Transaction* txn;
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s = NewTxn(write_opts, &txn);
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if (s.ok()) {
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s = txn->Put(cfh, key, v);
|
|
if (s.ok()) {
|
|
s = CommitTxn(txn);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
shared->Put(cf_idx, k, 0, false /* pending */);
|
|
if (!s.ok()) {
|
|
break;
|
|
}
|
|
}
|
|
if (!s.ok()) {
|
|
break;
|
|
}
|
|
++cf_idx;
|
|
}
|
|
if (s.ok()) {
|
|
s = db_->Flush(FlushOptions(), column_families_);
|
|
}
|
|
if (s.ok()) {
|
|
for (auto cf : column_families_) {
|
|
delete cf;
|
|
}
|
|
column_families_.clear();
|
|
delete db_;
|
|
db_ = nullptr;
|
|
#ifndef ROCKSDB_LITE
|
|
txn_db_ = nullptr;
|
|
#endif
|
|
|
|
db_preload_finished_.store(true);
|
|
auto now = clock_->NowMicros();
|
|
fprintf(stdout, "%s Reopening database in read-only\n",
|
|
clock_->TimeToString(now / 1000000).c_str());
|
|
// Reopen as read-only, can ignore all options related to updates
|
|
Open();
|
|
} else {
|
|
fprintf(stderr, "Failed to preload db");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
Status StressTest::SetOptions(ThreadState* thread) {
|
|
assert(FLAGS_set_options_one_in > 0);
|
|
std::unordered_map<std::string, std::string> opts;
|
|
std::string name =
|
|
options_index_[thread->rand.Next() % options_index_.size()];
|
|
int value_idx = thread->rand.Next() % options_table_[name].size();
|
|
if (name == "soft_rate_limit" || name == "hard_rate_limit") {
|
|
opts["soft_rate_limit"] = options_table_["soft_rate_limit"][value_idx];
|
|
opts["hard_rate_limit"] = options_table_["hard_rate_limit"][value_idx];
|
|
} else if (name == "level0_file_num_compaction_trigger" ||
|
|
name == "level0_slowdown_writes_trigger" ||
|
|
name == "level0_stop_writes_trigger") {
|
|
opts["level0_file_num_compaction_trigger"] =
|
|
options_table_["level0_file_num_compaction_trigger"][value_idx];
|
|
opts["level0_slowdown_writes_trigger"] =
|
|
options_table_["level0_slowdown_writes_trigger"][value_idx];
|
|
opts["level0_stop_writes_trigger"] =
|
|
options_table_["level0_stop_writes_trigger"][value_idx];
|
|
} else {
|
|
opts[name] = options_table_[name][value_idx];
|
|
}
|
|
|
|
int rand_cf_idx = thread->rand.Next() % FLAGS_column_families;
|
|
auto cfh = column_families_[rand_cf_idx];
|
|
return db_->SetOptions(cfh, opts);
|
|
}
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
Status StressTest::NewTxn(WriteOptions& write_opts, Transaction** txn) {
|
|
if (!FLAGS_use_txn) {
|
|
return Status::InvalidArgument("NewTxn when FLAGS_use_txn is not set");
|
|
}
|
|
static std::atomic<uint64_t> txn_id = {0};
|
|
TransactionOptions txn_options;
|
|
txn_options.lock_timeout = 600000; // 10 min
|
|
txn_options.deadlock_detect = true;
|
|
*txn = txn_db_->BeginTransaction(write_opts, txn_options);
|
|
auto istr = std::to_string(txn_id.fetch_add(1));
|
|
Status s = (*txn)->SetName("xid" + istr);
|
|
return s;
|
|
}
|
|
|
|
Status StressTest::CommitTxn(Transaction* txn) {
|
|
if (!FLAGS_use_txn) {
|
|
return Status::InvalidArgument("CommitTxn when FLAGS_use_txn is not set");
|
|
}
|
|
Status s = txn->Prepare();
|
|
if (s.ok()) {
|
|
s = txn->Commit();
|
|
}
|
|
delete txn;
|
|
return s;
|
|
}
|
|
|
|
Status StressTest::RollbackTxn(Transaction* txn) {
|
|
if (!FLAGS_use_txn) {
|
|
return Status::InvalidArgument(
|
|
"RollbackTxn when FLAGS_use_txn is not"
|
|
" set");
|
|
}
|
|
Status s = txn->Rollback();
|
|
delete txn;
|
|
return s;
|
|
}
|
|
#endif
|
|
|
|
void StressTest::OperateDb(ThreadState* thread) {
|
|
ReadOptions read_opts(FLAGS_verify_checksum, true);
|
|
WriteOptions write_opts;
|
|
auto shared = thread->shared;
|
|
char value[100];
|
|
std::string from_db;
|
|
if (FLAGS_sync) {
|
|
write_opts.sync = true;
|
|
}
|
|
write_opts.disableWAL = FLAGS_disable_wal;
|
|
const int prefixBound = static_cast<int>(FLAGS_readpercent) +
|
|
static_cast<int>(FLAGS_prefixpercent);
|
|
const int writeBound = prefixBound + static_cast<int>(FLAGS_writepercent);
|
|
const int delBound = writeBound + static_cast<int>(FLAGS_delpercent);
|
|
const int delRangeBound = delBound + static_cast<int>(FLAGS_delrangepercent);
|
|
const uint64_t ops_per_open = FLAGS_ops_per_thread / (FLAGS_reopen + 1);
|
|
|
|
#ifndef NDEBUG
|
|
if (FLAGS_read_fault_one_in) {
|
|
fault_fs_guard->SetThreadLocalReadErrorContext(thread->shared->GetSeed(),
|
|
FLAGS_read_fault_one_in);
|
|
}
|
|
if (FLAGS_write_fault_one_in) {
|
|
IOStatus error_msg = IOStatus::IOError("Retryable IO Error");
|
|
error_msg.SetRetryable(true);
|
|
std::vector<FileType> types = {FileType::kTableFile,
|
|
FileType::kDescriptorFile,
|
|
FileType::kCurrentFile};
|
|
fault_fs_guard->SetRandomWriteError(
|
|
thread->shared->GetSeed(), FLAGS_write_fault_one_in, error_msg, types);
|
|
}
|
|
#endif // NDEBUG
|
|
thread->stats.Start();
|
|
for (int open_cnt = 0; open_cnt <= FLAGS_reopen; ++open_cnt) {
|
|
if (thread->shared->HasVerificationFailedYet() ||
|
|
thread->shared->ShouldStopTest()) {
|
|
break;
|
|
}
|
|
if (open_cnt != 0) {
|
|
thread->stats.FinishedSingleOp();
|
|
MutexLock l(thread->shared->GetMutex());
|
|
while (!thread->snapshot_queue.empty()) {
|
|
db_->ReleaseSnapshot(thread->snapshot_queue.front().second.snapshot);
|
|
delete thread->snapshot_queue.front().second.key_vec;
|
|
thread->snapshot_queue.pop();
|
|
}
|
|
thread->shared->IncVotedReopen();
|
|
if (thread->shared->AllVotedReopen()) {
|
|
thread->shared->GetStressTest()->Reopen(thread);
|
|
thread->shared->GetCondVar()->SignalAll();
|
|
} else {
|
|
thread->shared->GetCondVar()->Wait();
|
|
}
|
|
// Commenting this out as we don't want to reset stats on each open.
|
|
// thread->stats.Start();
|
|
}
|
|
|
|
for (uint64_t i = 0; i < ops_per_open; i++) {
|
|
if (thread->shared->HasVerificationFailedYet()) {
|
|
break;
|
|
}
|
|
|
|
// Change Options
|
|
if (thread->rand.OneInOpt(FLAGS_set_options_one_in)) {
|
|
SetOptions(thread);
|
|
}
|
|
|
|
if (thread->rand.OneInOpt(FLAGS_set_in_place_one_in)) {
|
|
options_.inplace_update_support ^= options_.inplace_update_support;
|
|
}
|
|
|
|
if (thread->tid == 0 && FLAGS_verify_db_one_in > 0 &&
|
|
thread->rand.OneIn(FLAGS_verify_db_one_in)) {
|
|
ContinuouslyVerifyDb(thread);
|
|
if (thread->shared->ShouldStopTest()) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
MaybeClearOneColumnFamily(thread);
|
|
|
|
if (thread->rand.OneInOpt(FLAGS_sync_wal_one_in)) {
|
|
Status s = db_->SyncWAL();
|
|
if (!s.ok() && !s.IsNotSupported()) {
|
|
fprintf(stderr, "SyncWAL() failed: %s\n", s.ToString().c_str());
|
|
}
|
|
}
|
|
|
|
int rand_column_family = thread->rand.Next() % FLAGS_column_families;
|
|
ColumnFamilyHandle* column_family = column_families_[rand_column_family];
|
|
|
|
if (thread->rand.OneInOpt(FLAGS_compact_files_one_in)) {
|
|
TestCompactFiles(thread, column_family);
|
|
}
|
|
|
|
int64_t rand_key = GenerateOneKey(thread, i);
|
|
std::string keystr = Key(rand_key);
|
|
Slice key = keystr;
|
|
std::unique_ptr<MutexLock> lock;
|
|
if (ShouldAcquireMutexOnKey()) {
|
|
lock.reset(new MutexLock(
|
|
shared->GetMutexForKey(rand_column_family, rand_key)));
|
|
}
|
|
|
|
if (thread->rand.OneInOpt(FLAGS_compact_range_one_in)) {
|
|
TestCompactRange(thread, rand_key, key, column_family);
|
|
if (thread->shared->HasVerificationFailedYet()) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
std::vector<int> rand_column_families =
|
|
GenerateColumnFamilies(FLAGS_column_families, rand_column_family);
|
|
|
|
if (thread->rand.OneInOpt(FLAGS_flush_one_in)) {
|
|
Status status = TestFlush(rand_column_families);
|
|
if (!status.ok()) {
|
|
fprintf(stdout, "Unable to perform Flush(): %s\n",
|
|
status.ToString().c_str());
|
|
}
|
|
}
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
// Verify GetLiveFiles with a 1 in N chance.
|
|
if (thread->rand.OneInOpt(FLAGS_get_live_files_one_in) &&
|
|
!FLAGS_write_fault_one_in) {
|
|
Status status = VerifyGetLiveFiles();
|
|
if (!status.ok()) {
|
|
VerificationAbort(shared, "VerifyGetLiveFiles status not OK", status);
|
|
}
|
|
}
|
|
|
|
// Verify GetSortedWalFiles with a 1 in N chance.
|
|
if (thread->rand.OneInOpt(FLAGS_get_sorted_wal_files_one_in)) {
|
|
Status status = VerifyGetSortedWalFiles();
|
|
if (!status.ok()) {
|
|
VerificationAbort(shared, "VerifyGetSortedWalFiles status not OK",
|
|
status);
|
|
}
|
|
}
|
|
|
|
// Verify GetCurrentWalFile with a 1 in N chance.
|
|
if (thread->rand.OneInOpt(FLAGS_get_current_wal_file_one_in)) {
|
|
Status status = VerifyGetCurrentWalFile();
|
|
if (!status.ok()) {
|
|
VerificationAbort(shared, "VerifyGetCurrentWalFile status not OK",
|
|
status);
|
|
}
|
|
}
|
|
#endif // !ROCKSDB_LITE
|
|
|
|
if (thread->rand.OneInOpt(FLAGS_pause_background_one_in)) {
|
|
Status status = TestPauseBackground(thread);
|
|
if (!status.ok()) {
|
|
VerificationAbort(
|
|
shared, "Pause/ContinueBackgroundWork status not OK", status);
|
|
}
|
|
}
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
if (thread->rand.OneInOpt(FLAGS_verify_checksum_one_in)) {
|
|
Status status = db_->VerifyChecksum();
|
|
if (!status.ok()) {
|
|
VerificationAbort(shared, "VerifyChecksum status not OK", status);
|
|
}
|
|
}
|
|
|
|
if (thread->rand.OneInOpt(FLAGS_get_property_one_in)) {
|
|
TestGetProperty(thread);
|
|
}
|
|
#endif
|
|
|
|
std::vector<int64_t> rand_keys = GenerateKeys(rand_key);
|
|
|
|
if (thread->rand.OneInOpt(FLAGS_ingest_external_file_one_in)) {
|
|
TestIngestExternalFile(thread, rand_column_families, rand_keys, lock);
|
|
}
|
|
|
|
if (thread->rand.OneInOpt(FLAGS_backup_one_in)) {
|
|
// Beyond a certain DB size threshold, this test becomes heavier than
|
|
// it's worth.
|
|
uint64_t total_size = 0;
|
|
if (FLAGS_backup_max_size > 0) {
|
|
std::vector<FileAttributes> files;
|
|
db_stress_env->GetChildrenFileAttributes(FLAGS_db, &files);
|
|
for (auto& file : files) {
|
|
total_size += file.size_bytes;
|
|
}
|
|
}
|
|
|
|
if (total_size <= FLAGS_backup_max_size) {
|
|
Status s = TestBackupRestore(thread, rand_column_families, rand_keys);
|
|
if (!s.ok()) {
|
|
VerificationAbort(shared, "Backup/restore gave inconsistent state",
|
|
s);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (thread->rand.OneInOpt(FLAGS_checkpoint_one_in)) {
|
|
Status s = TestCheckpoint(thread, rand_column_families, rand_keys);
|
|
if (!s.ok()) {
|
|
VerificationAbort(shared, "Checkpoint gave inconsistent state", s);
|
|
}
|
|
}
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
if (thread->rand.OneInOpt(FLAGS_approximate_size_one_in)) {
|
|
Status s =
|
|
TestApproximateSize(thread, i, rand_column_families, rand_keys);
|
|
if (!s.ok()) {
|
|
VerificationAbort(shared, "ApproximateSize Failed", s);
|
|
}
|
|
}
|
|
#endif // !ROCKSDB_LITE
|
|
if (thread->rand.OneInOpt(FLAGS_acquire_snapshot_one_in)) {
|
|
TestAcquireSnapshot(thread, rand_column_family, keystr, i);
|
|
}
|
|
|
|
/*always*/ {
|
|
Status s = MaybeReleaseSnapshots(thread, i);
|
|
if (!s.ok()) {
|
|
VerificationAbort(shared, "Snapshot gave inconsistent state", s);
|
|
}
|
|
}
|
|
|
|
// Assign timestamps if necessary.
|
|
std::string read_ts_str;
|
|
std::string write_ts_str;
|
|
Slice read_ts;
|
|
Slice write_ts;
|
|
if (ShouldAcquireMutexOnKey() && FLAGS_user_timestamp_size > 0) {
|
|
read_ts_str = GenerateTimestampForRead();
|
|
read_ts = read_ts_str;
|
|
read_opts.timestamp = &read_ts;
|
|
write_ts_str = NowNanosStr();
|
|
write_ts = write_ts_str;
|
|
write_opts.timestamp = &write_ts;
|
|
}
|
|
|
|
int prob_op = thread->rand.Uniform(100);
|
|
// Reset this in case we pick something other than a read op. We don't
|
|
// want to use a stale value when deciding at the beginning of the loop
|
|
// whether to vote to reopen
|
|
if (prob_op >= 0 && prob_op < static_cast<int>(FLAGS_readpercent)) {
|
|
assert(0 <= prob_op);
|
|
// OPERATION read
|
|
if (FLAGS_use_multiget) {
|
|
// Leave room for one more iteration of the loop with a single key
|
|
// batch. This is to ensure that each thread does exactly the same
|
|
// number of ops
|
|
int multiget_batch_size = static_cast<int>(
|
|
std::min(static_cast<uint64_t>(thread->rand.Uniform(64)),
|
|
FLAGS_ops_per_thread - i - 1));
|
|
// If its the last iteration, ensure that multiget_batch_size is 1
|
|
multiget_batch_size = std::max(multiget_batch_size, 1);
|
|
rand_keys = GenerateNKeys(thread, multiget_batch_size, i);
|
|
TestMultiGet(thread, read_opts, rand_column_families, rand_keys);
|
|
i += multiget_batch_size - 1;
|
|
} else {
|
|
TestGet(thread, read_opts, rand_column_families, rand_keys);
|
|
}
|
|
} else if (prob_op < prefixBound) {
|
|
assert(static_cast<int>(FLAGS_readpercent) <= prob_op);
|
|
// OPERATION prefix scan
|
|
// keys are 8 bytes long, prefix size is FLAGS_prefix_size. There are
|
|
// (8 - FLAGS_prefix_size) bytes besides the prefix. So there will
|
|
// be 2 ^ ((8 - FLAGS_prefix_size) * 8) possible keys with the same
|
|
// prefix
|
|
TestPrefixScan(thread, read_opts, rand_column_families, rand_keys);
|
|
} else if (prob_op < writeBound) {
|
|
assert(prefixBound <= prob_op);
|
|
// OPERATION write
|
|
TestPut(thread, write_opts, read_opts, rand_column_families, rand_keys,
|
|
value, lock);
|
|
} else if (prob_op < delBound) {
|
|
assert(writeBound <= prob_op);
|
|
// OPERATION delete
|
|
TestDelete(thread, write_opts, rand_column_families, rand_keys, lock);
|
|
} else if (prob_op < delRangeBound) {
|
|
assert(delBound <= prob_op);
|
|
// OPERATION delete range
|
|
TestDeleteRange(thread, write_opts, rand_column_families, rand_keys,
|
|
lock);
|
|
} else {
|
|
assert(delRangeBound <= prob_op);
|
|
// OPERATION iterate
|
|
int num_seeks = static_cast<int>(
|
|
std::min(static_cast<uint64_t>(thread->rand.Uniform(4)),
|
|
FLAGS_ops_per_thread - i - 1));
|
|
rand_keys = GenerateNKeys(thread, num_seeks, i);
|
|
i += num_seeks - 1;
|
|
TestIterate(thread, read_opts, rand_column_families, rand_keys);
|
|
}
|
|
thread->stats.FinishedSingleOp();
|
|
#ifndef ROCKSDB_LITE
|
|
uint32_t tid = thread->tid;
|
|
assert(secondaries_.empty() ||
|
|
static_cast<size_t>(tid) < secondaries_.size());
|
|
if (thread->rand.OneInOpt(FLAGS_secondary_catch_up_one_in)) {
|
|
Status s = secondaries_[tid]->TryCatchUpWithPrimary();
|
|
if (!s.ok()) {
|
|
VerificationAbort(shared, "Secondary instance failed to catch up", s);
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
while (!thread->snapshot_queue.empty()) {
|
|
db_->ReleaseSnapshot(thread->snapshot_queue.front().second.snapshot);
|
|
delete thread->snapshot_queue.front().second.key_vec;
|
|
thread->snapshot_queue.pop();
|
|
}
|
|
|
|
thread->stats.Stop();
|
|
}
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
// Generated a list of keys that close to boundaries of SST keys.
|
|
// If there isn't any SST file in the DB, return empty list.
|
|
std::vector<std::string> StressTest::GetWhiteBoxKeys(ThreadState* thread,
|
|
DB* db,
|
|
ColumnFamilyHandle* cfh,
|
|
size_t num_keys) {
|
|
ColumnFamilyMetaData cfmd;
|
|
db->GetColumnFamilyMetaData(cfh, &cfmd);
|
|
std::vector<std::string> boundaries;
|
|
for (const LevelMetaData& lmd : cfmd.levels) {
|
|
for (const SstFileMetaData& sfmd : lmd.files) {
|
|
// If FLAGS_user_timestamp_size > 0, then both smallestkey and largestkey
|
|
// have timestamps.
|
|
const auto& skey = sfmd.smallestkey;
|
|
const auto& lkey = sfmd.largestkey;
|
|
assert(skey.size() >= FLAGS_user_timestamp_size);
|
|
assert(lkey.size() >= FLAGS_user_timestamp_size);
|
|
boundaries.push_back(
|
|
skey.substr(0, skey.size() - FLAGS_user_timestamp_size));
|
|
boundaries.push_back(
|
|
lkey.substr(0, lkey.size() - FLAGS_user_timestamp_size));
|
|
}
|
|
}
|
|
if (boundaries.empty()) {
|
|
return {};
|
|
}
|
|
|
|
std::vector<std::string> ret;
|
|
for (size_t j = 0; j < num_keys; j++) {
|
|
std::string k =
|
|
boundaries[thread->rand.Uniform(static_cast<int>(boundaries.size()))];
|
|
if (thread->rand.OneIn(3)) {
|
|
// Reduce one byte from the string
|
|
for (int i = static_cast<int>(k.length()) - 1; i >= 0; i--) {
|
|
uint8_t cur = k[i];
|
|
if (cur > 0) {
|
|
k[i] = static_cast<char>(cur - 1);
|
|
break;
|
|
} else if (i > 0) {
|
|
k[i] = 0xFFu;
|
|
}
|
|
}
|
|
} else if (thread->rand.OneIn(2)) {
|
|
// Add one byte to the string
|
|
for (int i = static_cast<int>(k.length()) - 1; i >= 0; i--) {
|
|
uint8_t cur = k[i];
|
|
if (cur < 255) {
|
|
k[i] = static_cast<char>(cur + 1);
|
|
break;
|
|
} else if (i > 0) {
|
|
k[i] = 0x00;
|
|
}
|
|
}
|
|
}
|
|
ret.push_back(k);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif // !ROCKSDB_LITE
|
|
|
|
// Given a key K, this creates an iterator which scans to K and then
|
|
// does a random sequence of Next/Prev operations.
|
|
Status StressTest::TestIterate(ThreadState* thread,
|
|
const ReadOptions& read_opts,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys) {
|
|
Status s;
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
ReadOptions readoptionscopy = read_opts;
|
|
readoptionscopy.snapshot = snapshot;
|
|
|
|
bool expect_total_order = false;
|
|
if (thread->rand.OneIn(16)) {
|
|
// When prefix extractor is used, it's useful to cover total order seek.
|
|
readoptionscopy.total_order_seek = true;
|
|
expect_total_order = true;
|
|
} else if (thread->rand.OneIn(4)) {
|
|
readoptionscopy.total_order_seek = false;
|
|
readoptionscopy.auto_prefix_mode = true;
|
|
expect_total_order = true;
|
|
} else if (options_.prefix_extractor.get() == nullptr) {
|
|
expect_total_order = true;
|
|
}
|
|
|
|
std::string upper_bound_str;
|
|
Slice upper_bound;
|
|
if (thread->rand.OneIn(16)) {
|
|
// in 1/16 chance, set a iterator upper bound
|
|
int64_t rand_upper_key = GenerateOneKey(thread, FLAGS_ops_per_thread);
|
|
upper_bound_str = Key(rand_upper_key);
|
|
upper_bound = Slice(upper_bound_str);
|
|
// uppder_bound can be smaller than seek key, but the query itself
|
|
// should not crash either.
|
|
readoptionscopy.iterate_upper_bound = &upper_bound;
|
|
}
|
|
std::string lower_bound_str;
|
|
Slice lower_bound;
|
|
if (thread->rand.OneIn(16)) {
|
|
// in 1/16 chance, enable iterator lower bound
|
|
int64_t rand_lower_key = GenerateOneKey(thread, FLAGS_ops_per_thread);
|
|
lower_bound_str = Key(rand_lower_key);
|
|
lower_bound = Slice(lower_bound_str);
|
|
// uppder_bound can be smaller than seek key, but the query itself
|
|
// should not crash either.
|
|
readoptionscopy.iterate_lower_bound = &lower_bound;
|
|
}
|
|
|
|
auto cfh = column_families_[rand_column_families[0]];
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(readoptionscopy, cfh));
|
|
|
|
std::vector<std::string> key_str;
|
|
if (thread->rand.OneIn(16)) {
|
|
// Generate keys close to lower or upper bound of SST files.
|
|
key_str = GetWhiteBoxKeys(thread, db_, cfh, rand_keys.size());
|
|
}
|
|
if (key_str.empty()) {
|
|
// If key string is not geneerated using white block keys,
|
|
// Use randomized key passe in.
|
|
for (int64_t rkey : rand_keys) {
|
|
key_str.push_back(Key(rkey));
|
|
}
|
|
}
|
|
|
|
std::string op_logs;
|
|
const size_t kOpLogsLimit = 10000;
|
|
|
|
for (const std::string& skey : key_str) {
|
|
if (op_logs.size() > kOpLogsLimit) {
|
|
// Shouldn't take too much memory for the history log. Clear it.
|
|
op_logs = "(cleared...)\n";
|
|
}
|
|
|
|
Slice key = skey;
|
|
|
|
if (readoptionscopy.iterate_upper_bound != nullptr &&
|
|
thread->rand.OneIn(2)) {
|
|
// 1/2 chance, change the upper bound.
|
|
// It is possible that it is changed without first use, but there is no
|
|
// problem with that.
|
|
int64_t rand_upper_key = GenerateOneKey(thread, FLAGS_ops_per_thread);
|
|
upper_bound_str = Key(rand_upper_key);
|
|
upper_bound = Slice(upper_bound_str);
|
|
} else if (readoptionscopy.iterate_lower_bound != nullptr &&
|
|
thread->rand.OneIn(4)) {
|
|
// 1/4 chance, change the lower bound.
|
|
// It is possible that it is changed without first use, but there is no
|
|
// problem with that.
|
|
int64_t rand_lower_key = GenerateOneKey(thread, FLAGS_ops_per_thread);
|
|
lower_bound_str = Key(rand_lower_key);
|
|
lower_bound = Slice(lower_bound_str);
|
|
}
|
|
|
|
// Record some options to op_logs;
|
|
op_logs += "total_order_seek: ";
|
|
op_logs += (readoptionscopy.total_order_seek ? "1 " : "0 ");
|
|
op_logs += "auto_prefix_mode: ";
|
|
op_logs += (readoptionscopy.auto_prefix_mode ? "1 " : "0 ");
|
|
if (readoptionscopy.iterate_upper_bound != nullptr) {
|
|
op_logs += "ub: " + upper_bound.ToString(true) + " ";
|
|
}
|
|
if (readoptionscopy.iterate_lower_bound != nullptr) {
|
|
op_logs += "lb: " + lower_bound.ToString(true) + " ";
|
|
}
|
|
|
|
// Set up an iterator and does the same without bounds and with total
|
|
// order seek and compare the results. This is to identify bugs related
|
|
// to bounds, prefix extractor or reseeking. Sometimes we are comparing
|
|
// iterators with the same set-up, and it doesn't hurt to check them
|
|
// to be equal.
|
|
ReadOptions cmp_ro;
|
|
cmp_ro.timestamp = readoptionscopy.timestamp;
|
|
cmp_ro.snapshot = snapshot;
|
|
cmp_ro.total_order_seek = true;
|
|
ColumnFamilyHandle* cmp_cfh =
|
|
GetControlCfh(thread, rand_column_families[0]);
|
|
std::unique_ptr<Iterator> cmp_iter(db_->NewIterator(cmp_ro, cmp_cfh));
|
|
bool diverged = false;
|
|
|
|
bool support_seek_first_or_last = expect_total_order;
|
|
|
|
LastIterateOp last_op;
|
|
if (support_seek_first_or_last && thread->rand.OneIn(100)) {
|
|
iter->SeekToFirst();
|
|
cmp_iter->SeekToFirst();
|
|
last_op = kLastOpSeekToFirst;
|
|
op_logs += "STF ";
|
|
} else if (support_seek_first_or_last && thread->rand.OneIn(100)) {
|
|
iter->SeekToLast();
|
|
cmp_iter->SeekToLast();
|
|
last_op = kLastOpSeekToLast;
|
|
op_logs += "STL ";
|
|
} else if (thread->rand.OneIn(8)) {
|
|
iter->SeekForPrev(key);
|
|
cmp_iter->SeekForPrev(key);
|
|
last_op = kLastOpSeekForPrev;
|
|
op_logs += "SFP " + key.ToString(true) + " ";
|
|
} else {
|
|
iter->Seek(key);
|
|
cmp_iter->Seek(key);
|
|
last_op = kLastOpSeek;
|
|
op_logs += "S " + key.ToString(true) + " ";
|
|
}
|
|
VerifyIterator(thread, cmp_cfh, readoptionscopy, iter.get(), cmp_iter.get(),
|
|
last_op, key, op_logs, &diverged);
|
|
|
|
bool no_reverse =
|
|
(FLAGS_memtablerep == "prefix_hash" && !expect_total_order);
|
|
for (uint64_t i = 0; i < FLAGS_num_iterations && iter->Valid(); i++) {
|
|
if (no_reverse || thread->rand.OneIn(2)) {
|
|
iter->Next();
|
|
if (!diverged) {
|
|
assert(cmp_iter->Valid());
|
|
cmp_iter->Next();
|
|
}
|
|
op_logs += "N";
|
|
} else {
|
|
iter->Prev();
|
|
if (!diverged) {
|
|
assert(cmp_iter->Valid());
|
|
cmp_iter->Prev();
|
|
}
|
|
op_logs += "P";
|
|
}
|
|
last_op = kLastOpNextOrPrev;
|
|
VerifyIterator(thread, cmp_cfh, readoptionscopy, iter.get(),
|
|
cmp_iter.get(), last_op, key, op_logs, &diverged);
|
|
}
|
|
|
|
if (s.ok()) {
|
|
thread->stats.AddIterations(1);
|
|
} else {
|
|
fprintf(stderr, "TestIterate error: %s\n", s.ToString().c_str());
|
|
thread->stats.AddErrors(1);
|
|
break;
|
|
}
|
|
|
|
op_logs += "; ";
|
|
}
|
|
|
|
db_->ReleaseSnapshot(snapshot);
|
|
|
|
return s;
|
|
}
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
// Test the return status of GetLiveFiles.
|
|
Status StressTest::VerifyGetLiveFiles() const {
|
|
std::vector<std::string> live_file;
|
|
uint64_t manifest_size = 0;
|
|
return db_->GetLiveFiles(live_file, &manifest_size);
|
|
}
|
|
|
|
// Test the return status of GetSortedWalFiles.
|
|
Status StressTest::VerifyGetSortedWalFiles() const {
|
|
VectorLogPtr log_ptr;
|
|
return db_->GetSortedWalFiles(log_ptr);
|
|
}
|
|
|
|
// Test the return status of GetCurrentWalFile.
|
|
Status StressTest::VerifyGetCurrentWalFile() const {
|
|
std::unique_ptr<LogFile> cur_wal_file;
|
|
return db_->GetCurrentWalFile(&cur_wal_file);
|
|
}
|
|
#endif // !ROCKSDB_LITE
|
|
|
|
// Compare the two iterator, iter and cmp_iter are in the same position,
|
|
// unless iter might be made invalidate or undefined because of
|
|
// upper or lower bounds, or prefix extractor.
|
|
// Will flag failure if the verification fails.
|
|
// diverged = true if the two iterator is already diverged.
|
|
// True if verification passed, false if not.
|
|
void StressTest::VerifyIterator(ThreadState* thread,
|
|
ColumnFamilyHandle* cmp_cfh,
|
|
const ReadOptions& ro, Iterator* iter,
|
|
Iterator* cmp_iter, LastIterateOp op,
|
|
const Slice& seek_key,
|
|
const std::string& op_logs, bool* diverged) {
|
|
if (*diverged) {
|
|
return;
|
|
}
|
|
|
|
if (op == kLastOpSeekToFirst && ro.iterate_lower_bound != nullptr) {
|
|
// SeekToFirst() with lower bound is not well defined.
|
|
*diverged = true;
|
|
return;
|
|
} else if (op == kLastOpSeekToLast && ro.iterate_upper_bound != nullptr) {
|
|
// SeekToLast() with higher bound is not well defined.
|
|
*diverged = true;
|
|
return;
|
|
} else if (op == kLastOpSeek && ro.iterate_lower_bound != nullptr &&
|
|
(options_.comparator->CompareWithoutTimestamp(
|
|
*ro.iterate_lower_bound, /*a_has_ts=*/false, seek_key,
|
|
/*b_has_ts=*/false) >= 0 ||
|
|
(ro.iterate_upper_bound != nullptr &&
|
|
options_.comparator->CompareWithoutTimestamp(
|
|
*ro.iterate_lower_bound, /*a_has_ts=*/false,
|
|
*ro.iterate_upper_bound, /*b_has_ts*/ false) >= 0))) {
|
|
// Lower bound behavior is not well defined if it is larger than
|
|
// seek key or upper bound. Disable the check for now.
|
|
*diverged = true;
|
|
return;
|
|
} else if (op == kLastOpSeekForPrev && ro.iterate_upper_bound != nullptr &&
|
|
(options_.comparator->CompareWithoutTimestamp(
|
|
*ro.iterate_upper_bound, /*a_has_ts=*/false, seek_key,
|
|
/*b_has_ts=*/false) <= 0 ||
|
|
(ro.iterate_lower_bound != nullptr &&
|
|
options_.comparator->CompareWithoutTimestamp(
|
|
*ro.iterate_lower_bound, /*a_has_ts=*/false,
|
|
*ro.iterate_upper_bound, /*b_has_ts=*/false) >= 0))) {
|
|
// Uppder bound behavior is not well defined if it is smaller than
|
|
// seek key or lower bound. Disable the check for now.
|
|
*diverged = true;
|
|
return;
|
|
}
|
|
|
|
const SliceTransform* pe = (ro.total_order_seek || ro.auto_prefix_mode)
|
|
? nullptr
|
|
: options_.prefix_extractor.get();
|
|
const Comparator* cmp = options_.comparator;
|
|
|
|
if (iter->Valid() && !cmp_iter->Valid()) {
|
|
if (pe != nullptr) {
|
|
if (!pe->InDomain(seek_key)) {
|
|
// Prefix seek a non-in-domain key is undefined. Skip checking for
|
|
// this scenario.
|
|
*diverged = true;
|
|
return;
|
|
} else if (!pe->InDomain(iter->key())) {
|
|
// out of range is iterator key is not in domain anymore.
|
|
*diverged = true;
|
|
return;
|
|
} else if (pe->Transform(iter->key()) != pe->Transform(seek_key)) {
|
|
*diverged = true;
|
|
return;
|
|
}
|
|
}
|
|
fprintf(stderr,
|
|
"Control interator is invalid but iterator has key %s "
|
|
"%s\n",
|
|
iter->key().ToString(true).c_str(), op_logs.c_str());
|
|
|
|
*diverged = true;
|
|
} else if (cmp_iter->Valid()) {
|
|
// Iterator is not valid. It can be legimate if it has already been
|
|
// out of upper or lower bound, or filtered out by prefix iterator.
|
|
const Slice& total_order_key = cmp_iter->key();
|
|
|
|
if (pe != nullptr) {
|
|
if (!pe->InDomain(seek_key)) {
|
|
// Prefix seek a non-in-domain key is undefined. Skip checking for
|
|
// this scenario.
|
|
*diverged = true;
|
|
return;
|
|
}
|
|
|
|
if (!pe->InDomain(total_order_key) ||
|
|
pe->Transform(total_order_key) != pe->Transform(seek_key)) {
|
|
// If the prefix is exhausted, the only thing needs to check
|
|
// is the iterator isn't return a position in prefix.
|
|
// Either way, checking can stop from here.
|
|
*diverged = true;
|
|
if (!iter->Valid() || !pe->InDomain(iter->key()) ||
|
|
pe->Transform(iter->key()) != pe->Transform(seek_key)) {
|
|
return;
|
|
}
|
|
fprintf(stderr,
|
|
"Iterator stays in prefix but contol doesn't"
|
|
" iterator key %s control iterator key %s %s\n",
|
|
iter->key().ToString(true).c_str(),
|
|
cmp_iter->key().ToString(true).c_str(), op_logs.c_str());
|
|
}
|
|
}
|
|
// Check upper or lower bounds.
|
|
if (!*diverged) {
|
|
if ((iter->Valid() && iter->key() != cmp_iter->key()) ||
|
|
(!iter->Valid() &&
|
|
(ro.iterate_upper_bound == nullptr ||
|
|
cmp->CompareWithoutTimestamp(total_order_key, /*a_has_ts=*/false,
|
|
*ro.iterate_upper_bound,
|
|
/*b_has_ts=*/false) < 0) &&
|
|
(ro.iterate_lower_bound == nullptr ||
|
|
cmp->CompareWithoutTimestamp(total_order_key, /*a_has_ts=*/false,
|
|
*ro.iterate_lower_bound,
|
|
/*b_has_ts=*/false) > 0))) {
|
|
fprintf(stderr,
|
|
"Iterator diverged from control iterator which"
|
|
" has value %s %s\n",
|
|
total_order_key.ToString(true).c_str(), op_logs.c_str());
|
|
if (iter->Valid()) {
|
|
fprintf(stderr, "iterator has value %s\n",
|
|
iter->key().ToString(true).c_str());
|
|
} else {
|
|
fprintf(stderr, "iterator is not valid\n");
|
|
}
|
|
*diverged = true;
|
|
}
|
|
}
|
|
}
|
|
if (*diverged) {
|
|
fprintf(stderr, "Control CF %s\n", cmp_cfh->GetName().c_str());
|
|
thread->stats.AddErrors(1);
|
|
// Fail fast to preserve the DB state.
|
|
thread->shared->SetVerificationFailure();
|
|
}
|
|
}
|
|
|
|
#ifdef ROCKSDB_LITE
|
|
Status StressTest::TestBackupRestore(
|
|
ThreadState* /* thread */,
|
|
const std::vector<int>& /* rand_column_families */,
|
|
const std::vector<int64_t>& /* rand_keys */) {
|
|
assert(false);
|
|
fprintf(stderr,
|
|
"RocksDB lite does not support "
|
|
"TestBackupRestore\n");
|
|
std::terminate();
|
|
}
|
|
|
|
Status StressTest::TestCheckpoint(
|
|
ThreadState* /* thread */,
|
|
const std::vector<int>& /* rand_column_families */,
|
|
const std::vector<int64_t>& /* rand_keys */) {
|
|
assert(false);
|
|
fprintf(stderr,
|
|
"RocksDB lite does not support "
|
|
"TestCheckpoint\n");
|
|
std::terminate();
|
|
}
|
|
|
|
void StressTest::TestCompactFiles(ThreadState* /* thread */,
|
|
ColumnFamilyHandle* /* column_family */) {
|
|
assert(false);
|
|
fprintf(stderr,
|
|
"RocksDB lite does not support "
|
|
"CompactFiles\n");
|
|
std::terminate();
|
|
}
|
|
#else // ROCKSDB_LITE
|
|
Status StressTest::TestBackupRestore(
|
|
ThreadState* thread, const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys) {
|
|
std::string backup_dir = FLAGS_db + "/.backup" + ToString(thread->tid);
|
|
std::string restore_dir = FLAGS_db + "/.restore" + ToString(thread->tid);
|
|
BackupableDBOptions backup_opts(backup_dir);
|
|
// For debugging, get info_log from live options
|
|
backup_opts.info_log = db_->GetDBOptions().info_log.get();
|
|
assert(backup_opts.info_log);
|
|
if (thread->rand.OneIn(10)) {
|
|
backup_opts.share_table_files = false;
|
|
} else {
|
|
backup_opts.share_table_files = true;
|
|
if (thread->rand.OneIn(5)) {
|
|
backup_opts.share_files_with_checksum = false;
|
|
} else {
|
|
backup_opts.share_files_with_checksum = true;
|
|
if (thread->rand.OneIn(2)) {
|
|
// old
|
|
backup_opts.share_files_with_checksum_naming =
|
|
BackupableDBOptions::kLegacyCrc32cAndFileSize;
|
|
} else {
|
|
// new
|
|
backup_opts.share_files_with_checksum_naming =
|
|
BackupableDBOptions::kUseDbSessionId;
|
|
}
|
|
if (thread->rand.OneIn(2)) {
|
|
backup_opts.share_files_with_checksum_naming =
|
|
backup_opts.share_files_with_checksum_naming |
|
|
BackupableDBOptions::kFlagIncludeFileSize;
|
|
}
|
|
}
|
|
}
|
|
BackupEngine* backup_engine = nullptr;
|
|
std::string from = "a backup/restore operation";
|
|
Status s = BackupEngine::Open(db_stress_env, backup_opts, &backup_engine);
|
|
if (!s.ok()) {
|
|
from = "BackupEngine::Open";
|
|
}
|
|
if (s.ok()) {
|
|
if (thread->rand.OneIn(2)) {
|
|
TEST_FutureSchemaVersion2Options test_opts;
|
|
test_opts.crc32c_checksums = thread->rand.OneIn(2) == 0;
|
|
test_opts.file_sizes = thread->rand.OneIn(2) == 0;
|
|
TEST_EnableWriteFutureSchemaVersion2(backup_engine, test_opts);
|
|
}
|
|
s = backup_engine->CreateNewBackup(db_);
|
|
if (!s.ok()) {
|
|
from = "BackupEngine::CreateNewBackup";
|
|
}
|
|
}
|
|
if (s.ok()) {
|
|
delete backup_engine;
|
|
backup_engine = nullptr;
|
|
s = BackupEngine::Open(db_stress_env, backup_opts, &backup_engine);
|
|
if (!s.ok()) {
|
|
from = "BackupEngine::Open (again)";
|
|
}
|
|
}
|
|
std::vector<BackupInfo> backup_info;
|
|
// If inplace_not_restore, we verify the backup by opening it as a
|
|
// read-only DB. If !inplace_not_restore, we restore it to a temporary
|
|
// directory for verification.
|
|
bool inplace_not_restore = thread->rand.OneIn(3);
|
|
if (s.ok()) {
|
|
backup_engine->GetBackupInfo(&backup_info,
|
|
/*include_file_details*/ inplace_not_restore);
|
|
if (backup_info.empty()) {
|
|
s = Status::NotFound("no backups found");
|
|
from = "BackupEngine::GetBackupInfo";
|
|
}
|
|
}
|
|
if (s.ok() && thread->rand.OneIn(2)) {
|
|
s = backup_engine->VerifyBackup(
|
|
backup_info.front().backup_id,
|
|
thread->rand.OneIn(2) /* verify_with_checksum */);
|
|
if (!s.ok()) {
|
|
from = "BackupEngine::VerifyBackup";
|
|
}
|
|
}
|
|
const bool allow_persistent = thread->tid == 0; // not too many
|
|
bool from_latest = false;
|
|
int count = static_cast<int>(backup_info.size());
|
|
if (s.ok() && !inplace_not_restore) {
|
|
if (count > 1) {
|
|
s = backup_engine->RestoreDBFromBackup(
|
|
RestoreOptions(), backup_info[thread->rand.Uniform(count)].backup_id,
|
|
restore_dir /* db_dir */, restore_dir /* wal_dir */);
|
|
if (!s.ok()) {
|
|
from = "BackupEngine::RestoreDBFromBackup";
|
|
}
|
|
} else {
|
|
from_latest = true;
|
|
s = backup_engine->RestoreDBFromLatestBackup(RestoreOptions(),
|
|
restore_dir /* db_dir */,
|
|
restore_dir /* wal_dir */);
|
|
if (!s.ok()) {
|
|
from = "BackupEngine::RestoreDBFromLatestBackup";
|
|
}
|
|
}
|
|
}
|
|
if (s.ok() && !inplace_not_restore) {
|
|
// Purge early if restoring, to ensure the restored directory doesn't
|
|
// have some secret dependency on the backup directory.
|
|
uint32_t to_keep = 0;
|
|
if (allow_persistent) {
|
|
// allow one thread to keep up to 2 backups
|
|
to_keep = thread->rand.Uniform(3);
|
|
}
|
|
s = backup_engine->PurgeOldBackups(to_keep);
|
|
if (!s.ok()) {
|
|
from = "BackupEngine::PurgeOldBackups";
|
|
}
|
|
}
|
|
DB* restored_db = nullptr;
|
|
std::vector<ColumnFamilyHandle*> restored_cf_handles;
|
|
// Not yet implemented: opening restored BlobDB or TransactionDB
|
|
if (s.ok() && !FLAGS_use_txn && !FLAGS_use_blob_db) {
|
|
Options restore_options(options_);
|
|
restore_options.listeners.clear();
|
|
// Avoid dangling/shared file descriptors, for reliable destroy
|
|
restore_options.sst_file_manager = nullptr;
|
|
std::vector<ColumnFamilyDescriptor> cf_descriptors;
|
|
// TODO(ajkr): `column_family_names_` is not safe to access here when
|
|
// `clear_column_family_one_in != 0`. But we can't easily switch to
|
|
// `ListColumnFamilies` to get names because it won't necessarily give
|
|
// the same order as `column_family_names_`.
|
|
assert(FLAGS_clear_column_family_one_in == 0);
|
|
for (auto name : column_family_names_) {
|
|
cf_descriptors.emplace_back(name, ColumnFamilyOptions(restore_options));
|
|
}
|
|
if (inplace_not_restore) {
|
|
BackupInfo& info = backup_info[thread->rand.Uniform(count)];
|
|
restore_options.env = info.env_for_open.get();
|
|
s = DB::OpenForReadOnly(DBOptions(restore_options), info.name_for_open,
|
|
cf_descriptors, &restored_cf_handles,
|
|
&restored_db);
|
|
if (!s.ok()) {
|
|
from = "DB::OpenForReadOnly in backup/restore";
|
|
}
|
|
} else {
|
|
s = DB::Open(DBOptions(restore_options), restore_dir, cf_descriptors,
|
|
&restored_cf_handles, &restored_db);
|
|
if (!s.ok()) {
|
|
from = "DB::Open in backup/restore";
|
|
}
|
|
}
|
|
}
|
|
// Note the column families chosen by `rand_column_families` cannot be
|
|
// dropped while the locks for `rand_keys` are held. So we should not have
|
|
// to worry about accessing those column families throughout this function.
|
|
//
|
|
// For simplicity, currently only verifies existence/non-existence of a
|
|
// single key
|
|
for (size_t i = 0; restored_db && s.ok() && i < rand_column_families.size();
|
|
++i) {
|
|
std::string key_str = Key(rand_keys[0]);
|
|
Slice key = key_str;
|
|
std::string restored_value;
|
|
ReadOptions read_opts;
|
|
std::string ts_str;
|
|
Slice ts;
|
|
if (FLAGS_user_timestamp_size > 0) {
|
|
ts_str = GenerateTimestampForRead();
|
|
ts = ts_str;
|
|
read_opts.timestamp = &ts;
|
|
}
|
|
Status get_status = restored_db->Get(
|
|
read_opts, restored_cf_handles[rand_column_families[i]], key,
|
|
&restored_value);
|
|
bool exists = thread->shared->Exists(rand_column_families[i], rand_keys[0]);
|
|
if (get_status.ok()) {
|
|
if (!exists && from_latest && ShouldAcquireMutexOnKey()) {
|
|
s = Status::Corruption("key exists in restore but not in original db");
|
|
}
|
|
} else if (get_status.IsNotFound()) {
|
|
if (exists && from_latest && ShouldAcquireMutexOnKey()) {
|
|
s = Status::Corruption("key exists in original db but not in restore");
|
|
}
|
|
} else {
|
|
s = get_status;
|
|
if (!s.ok()) {
|
|
from = "DB::Get in backup/restore";
|
|
}
|
|
}
|
|
}
|
|
if (restored_db != nullptr) {
|
|
for (auto* cf_handle : restored_cf_handles) {
|
|
restored_db->DestroyColumnFamilyHandle(cf_handle);
|
|
}
|
|
delete restored_db;
|
|
restored_db = nullptr;
|
|
}
|
|
if (s.ok() && inplace_not_restore) {
|
|
// Purge late if inplace open read-only
|
|
uint32_t to_keep = 0;
|
|
if (allow_persistent) {
|
|
// allow one thread to keep up to 2 backups
|
|
to_keep = thread->rand.Uniform(3);
|
|
}
|
|
s = backup_engine->PurgeOldBackups(to_keep);
|
|
if (!s.ok()) {
|
|
from = "BackupEngine::PurgeOldBackups";
|
|
}
|
|
}
|
|
if (backup_engine != nullptr) {
|
|
delete backup_engine;
|
|
backup_engine = nullptr;
|
|
}
|
|
if (s.ok()) {
|
|
// Preserve directories on failure, or allowed persistent backup
|
|
if (!allow_persistent) {
|
|
s = DestroyDir(db_stress_env, backup_dir);
|
|
if (!s.ok()) {
|
|
from = "Destroy backup dir";
|
|
}
|
|
}
|
|
}
|
|
if (s.ok()) {
|
|
s = DestroyDir(db_stress_env, restore_dir);
|
|
if (!s.ok()) {
|
|
from = "Destroy restore dir";
|
|
}
|
|
}
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "Failure in %s with: %s\n", from.c_str(),
|
|
s.ToString().c_str());
|
|
}
|
|
return s;
|
|
}
|
|
|
|
Status StressTest::TestApproximateSize(
|
|
ThreadState* thread, uint64_t iteration,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys) {
|
|
// rand_keys likely only has one key. Just use the first one.
|
|
assert(!rand_keys.empty());
|
|
assert(!rand_column_families.empty());
|
|
int64_t key1 = rand_keys[0];
|
|
int64_t key2;
|
|
if (thread->rand.OneIn(2)) {
|
|
// Two totally random keys. This tends to cover large ranges.
|
|
key2 = GenerateOneKey(thread, iteration);
|
|
if (key2 < key1) {
|
|
std::swap(key1, key2);
|
|
}
|
|
} else {
|
|
// Unless users pass a very large FLAGS_max_key, it we should not worry
|
|
// about overflow. It is for testing, so we skip the overflow checking
|
|
// for simplicity.
|
|
key2 = key1 + static_cast<int64_t>(thread->rand.Uniform(1000));
|
|
}
|
|
std::string key1_str = Key(key1);
|
|
std::string key2_str = Key(key2);
|
|
Range range{Slice(key1_str), Slice(key2_str)};
|
|
SizeApproximationOptions sao;
|
|
sao.include_memtabtles = thread->rand.OneIn(2);
|
|
if (sao.include_memtabtles) {
|
|
sao.include_files = thread->rand.OneIn(2);
|
|
}
|
|
if (thread->rand.OneIn(2)) {
|
|
if (thread->rand.OneIn(2)) {
|
|
sao.files_size_error_margin = 0.0;
|
|
} else {
|
|
sao.files_size_error_margin =
|
|
static_cast<double>(thread->rand.Uniform(3));
|
|
}
|
|
}
|
|
uint64_t result;
|
|
return db_->GetApproximateSizes(
|
|
sao, column_families_[rand_column_families[0]], &range, 1, &result);
|
|
}
|
|
|
|
Status StressTest::TestCheckpoint(ThreadState* thread,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys) {
|
|
std::string checkpoint_dir =
|
|
FLAGS_db + "/.checkpoint" + ToString(thread->tid);
|
|
Options tmp_opts(options_);
|
|
tmp_opts.listeners.clear();
|
|
tmp_opts.env = db_stress_env;
|
|
|
|
DestroyDB(checkpoint_dir, tmp_opts);
|
|
|
|
if (db_stress_env->FileExists(checkpoint_dir).ok()) {
|
|
// If the directory might still exist, try to delete the files one by one.
|
|
// Likely a trash file is still there.
|
|
Status my_s = DestroyDir(db_stress_env, checkpoint_dir);
|
|
if (!my_s.ok()) {
|
|
fprintf(stderr, "Fail to destory directory before checkpoint: %s",
|
|
my_s.ToString().c_str());
|
|
}
|
|
}
|
|
|
|
Checkpoint* checkpoint = nullptr;
|
|
Status s = Checkpoint::Create(db_, &checkpoint);
|
|
if (s.ok()) {
|
|
s = checkpoint->CreateCheckpoint(checkpoint_dir);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "Fail to create checkpoint to %s\n",
|
|
checkpoint_dir.c_str());
|
|
std::vector<std::string> files;
|
|
Status my_s = db_stress_env->GetChildren(checkpoint_dir, &files);
|
|
if (my_s.ok()) {
|
|
for (const auto& f : files) {
|
|
fprintf(stderr, " %s\n", f.c_str());
|
|
}
|
|
} else {
|
|
fprintf(stderr, "Fail to get files under the directory to %s\n",
|
|
my_s.ToString().c_str());
|
|
}
|
|
}
|
|
}
|
|
delete checkpoint;
|
|
checkpoint = nullptr;
|
|
std::vector<ColumnFamilyHandle*> cf_handles;
|
|
DB* checkpoint_db = nullptr;
|
|
if (s.ok()) {
|
|
Options options(options_);
|
|
options.listeners.clear();
|
|
std::vector<ColumnFamilyDescriptor> cf_descs;
|
|
// TODO(ajkr): `column_family_names_` is not safe to access here when
|
|
// `clear_column_family_one_in != 0`. But we can't easily switch to
|
|
// `ListColumnFamilies` to get names because it won't necessarily give
|
|
// the same order as `column_family_names_`.
|
|
assert(FLAGS_clear_column_family_one_in == 0);
|
|
if (FLAGS_clear_column_family_one_in == 0) {
|
|
for (const auto& name : column_family_names_) {
|
|
cf_descs.emplace_back(name, ColumnFamilyOptions(options));
|
|
}
|
|
s = DB::OpenForReadOnly(DBOptions(options), checkpoint_dir, cf_descs,
|
|
&cf_handles, &checkpoint_db);
|
|
}
|
|
}
|
|
if (checkpoint_db != nullptr) {
|
|
// Note the column families chosen by `rand_column_families` cannot be
|
|
// dropped while the locks for `rand_keys` are held. So we should not have
|
|
// to worry about accessing those column families throughout this function.
|
|
for (size_t i = 0; s.ok() && i < rand_column_families.size(); ++i) {
|
|
std::string key_str = Key(rand_keys[0]);
|
|
Slice key = key_str;
|
|
std::string value;
|
|
Status get_status = checkpoint_db->Get(
|
|
ReadOptions(), cf_handles[rand_column_families[i]], key, &value);
|
|
bool exists =
|
|
thread->shared->Exists(rand_column_families[i], rand_keys[0]);
|
|
if (get_status.ok()) {
|
|
if (!exists && ShouldAcquireMutexOnKey()) {
|
|
s = Status::Corruption(
|
|
"key exists in checkpoint but not in original db");
|
|
}
|
|
} else if (get_status.IsNotFound()) {
|
|
if (exists && ShouldAcquireMutexOnKey()) {
|
|
s = Status::Corruption(
|
|
"key exists in original db but not in checkpoint");
|
|
}
|
|
} else {
|
|
s = get_status;
|
|
}
|
|
}
|
|
for (auto cfh : cf_handles) {
|
|
delete cfh;
|
|
}
|
|
cf_handles.clear();
|
|
delete checkpoint_db;
|
|
checkpoint_db = nullptr;
|
|
}
|
|
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "A checkpoint operation failed with: %s\n",
|
|
s.ToString().c_str());
|
|
} else {
|
|
DestroyDB(checkpoint_dir, tmp_opts);
|
|
}
|
|
return s;
|
|
}
|
|
|
|
void StressTest::TestGetProperty(ThreadState* thread) const {
|
|
std::unordered_set<std::string> levelPropertyNames = {
|
|
DB::Properties::kAggregatedTablePropertiesAtLevel,
|
|
DB::Properties::kCompressionRatioAtLevelPrefix,
|
|
DB::Properties::kNumFilesAtLevelPrefix,
|
|
};
|
|
std::unordered_set<std::string> unknownPropertyNames = {
|
|
DB::Properties::kEstimateOldestKeyTime,
|
|
DB::Properties::kOptionsStatistics,
|
|
};
|
|
unknownPropertyNames.insert(levelPropertyNames.begin(),
|
|
levelPropertyNames.end());
|
|
|
|
std::string prop;
|
|
for (const auto& ppt_name_and_info : InternalStats::ppt_name_to_info) {
|
|
bool res = db_->GetProperty(ppt_name_and_info.first, &prop);
|
|
if (unknownPropertyNames.find(ppt_name_and_info.first) ==
|
|
unknownPropertyNames.end()) {
|
|
if (!res) {
|
|
fprintf(stderr, "Failed to get DB property: %s\n",
|
|
ppt_name_and_info.first.c_str());
|
|
thread->shared->SetVerificationFailure();
|
|
}
|
|
if (ppt_name_and_info.second.handle_int != nullptr) {
|
|
uint64_t prop_int;
|
|
if (!db_->GetIntProperty(ppt_name_and_info.first, &prop_int)) {
|
|
fprintf(stderr, "Failed to get Int property: %s\n",
|
|
ppt_name_and_info.first.c_str());
|
|
thread->shared->SetVerificationFailure();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ROCKSDB_NAMESPACE::ColumnFamilyMetaData cf_meta_data;
|
|
db_->GetColumnFamilyMetaData(&cf_meta_data);
|
|
int level_size = static_cast<int>(cf_meta_data.levels.size());
|
|
for (int level = 0; level < level_size; level++) {
|
|
for (const auto& ppt_name : levelPropertyNames) {
|
|
bool res = db_->GetProperty(ppt_name + std::to_string(level), &prop);
|
|
if (!res) {
|
|
fprintf(stderr, "Failed to get DB property: %s\n",
|
|
(ppt_name + std::to_string(level)).c_str());
|
|
thread->shared->SetVerificationFailure();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Test for an invalid property name
|
|
if (thread->rand.OneIn(100)) {
|
|
if (db_->GetProperty("rocksdb.invalid_property_name", &prop)) {
|
|
fprintf(stderr, "Failed to return false for invalid property name\n");
|
|
thread->shared->SetVerificationFailure();
|
|
}
|
|
}
|
|
}
|
|
|
|
void StressTest::TestCompactFiles(ThreadState* thread,
|
|
ColumnFamilyHandle* column_family) {
|
|
ROCKSDB_NAMESPACE::ColumnFamilyMetaData cf_meta_data;
|
|
db_->GetColumnFamilyMetaData(column_family, &cf_meta_data);
|
|
|
|
// Randomly compact up to three consecutive files from a level
|
|
const int kMaxRetry = 3;
|
|
for (int attempt = 0; attempt < kMaxRetry; ++attempt) {
|
|
size_t random_level =
|
|
thread->rand.Uniform(static_cast<int>(cf_meta_data.levels.size()));
|
|
|
|
const auto& files = cf_meta_data.levels[random_level].files;
|
|
if (files.size() > 0) {
|
|
size_t random_file_index =
|
|
thread->rand.Uniform(static_cast<int>(files.size()));
|
|
if (files[random_file_index].being_compacted) {
|
|
// Retry as the selected file is currently being compacted
|
|
continue;
|
|
}
|
|
|
|
std::vector<std::string> input_files;
|
|
input_files.push_back(files[random_file_index].name);
|
|
if (random_file_index > 0 &&
|
|
!files[random_file_index - 1].being_compacted) {
|
|
input_files.push_back(files[random_file_index - 1].name);
|
|
}
|
|
if (random_file_index + 1 < files.size() &&
|
|
!files[random_file_index + 1].being_compacted) {
|
|
input_files.push_back(files[random_file_index + 1].name);
|
|
}
|
|
|
|
size_t output_level =
|
|
std::min(random_level + 1, cf_meta_data.levels.size() - 1);
|
|
auto s = db_->CompactFiles(CompactionOptions(), column_family,
|
|
input_files, static_cast<int>(output_level));
|
|
if (!s.ok()) {
|
|
fprintf(stdout, "Unable to perform CompactFiles(): %s\n",
|
|
s.ToString().c_str());
|
|
thread->stats.AddNumCompactFilesFailed(1);
|
|
} else {
|
|
thread->stats.AddNumCompactFilesSucceed(1);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#endif // ROCKSDB_LITE
|
|
|
|
Status StressTest::TestFlush(const std::vector<int>& rand_column_families) {
|
|
FlushOptions flush_opts;
|
|
std::vector<ColumnFamilyHandle*> cfhs;
|
|
std::for_each(rand_column_families.begin(), rand_column_families.end(),
|
|
[this, &cfhs](int k) { cfhs.push_back(column_families_[k]); });
|
|
return db_->Flush(flush_opts, cfhs);
|
|
}
|
|
|
|
Status StressTest::TestPauseBackground(ThreadState* thread) {
|
|
Status status = db_->PauseBackgroundWork();
|
|
if (!status.ok()) {
|
|
return status;
|
|
}
|
|
// To avoid stalling/deadlocking ourself in this thread, just
|
|
// sleep here during pause and let other threads do db operations.
|
|
// Sleep up to ~16 seconds (2**24 microseconds), but very skewed
|
|
// toward short pause. (1 chance in 25 of pausing >= 1s;
|
|
// 1 chance in 625 of pausing full 16s.)
|
|
int pwr2_micros =
|
|
std::min(thread->rand.Uniform(25), thread->rand.Uniform(25));
|
|
clock_->SleepForMicroseconds(1 << pwr2_micros);
|
|
return db_->ContinueBackgroundWork();
|
|
}
|
|
|
|
void StressTest::TestAcquireSnapshot(ThreadState* thread,
|
|
int rand_column_family,
|
|
const std::string& keystr, uint64_t i) {
|
|
Slice key = keystr;
|
|
ColumnFamilyHandle* column_family = column_families_[rand_column_family];
|
|
ReadOptions ropt;
|
|
#ifndef ROCKSDB_LITE
|
|
auto db_impl = static_cast_with_check<DBImpl>(db_->GetRootDB());
|
|
const bool ww_snapshot = thread->rand.OneIn(10);
|
|
const Snapshot* snapshot =
|
|
ww_snapshot ? db_impl->GetSnapshotForWriteConflictBoundary()
|
|
: db_->GetSnapshot();
|
|
#else
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
#endif // !ROCKSDB_LITE
|
|
ropt.snapshot = snapshot;
|
|
|
|
// Ideally, we want snapshot taking and timestamp generation to be atomic
|
|
// here, so that the snapshot corresponds to the timestamp. However, it is
|
|
// not possible with current GetSnapshot() API.
|
|
std::string ts_str;
|
|
Slice ts;
|
|
if (FLAGS_user_timestamp_size > 0) {
|
|
ts_str = GenerateTimestampForRead();
|
|
ts = ts_str;
|
|
ropt.timestamp = &ts;
|
|
}
|
|
|
|
std::string value_at;
|
|
// When taking a snapshot, we also read a key from that snapshot. We
|
|
// will later read the same key before releasing the snapshot and
|
|
// verify that the results are the same.
|
|
auto status_at = db_->Get(ropt, column_family, key, &value_at);
|
|
std::vector<bool>* key_vec = nullptr;
|
|
|
|
if (FLAGS_compare_full_db_state_snapshot && (thread->tid == 0)) {
|
|
key_vec = new std::vector<bool>(FLAGS_max_key);
|
|
// When `prefix_extractor` is set, seeking to beginning and scanning
|
|
// across prefixes are only supported with `total_order_seek` set.
|
|
ropt.total_order_seek = true;
|
|
std::unique_ptr<Iterator> iterator(db_->NewIterator(ropt));
|
|
for (iterator->SeekToFirst(); iterator->Valid(); iterator->Next()) {
|
|
uint64_t key_val;
|
|
if (GetIntVal(iterator->key().ToString(), &key_val)) {
|
|
(*key_vec)[key_val] = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
ThreadState::SnapshotState snap_state = {snapshot,
|
|
rand_column_family,
|
|
column_family->GetName(),
|
|
keystr,
|
|
status_at,
|
|
value_at,
|
|
key_vec,
|
|
ts_str};
|
|
uint64_t hold_for = FLAGS_snapshot_hold_ops;
|
|
if (FLAGS_long_running_snapshots) {
|
|
// Hold 10% of snapshots for 10x more
|
|
if (thread->rand.OneIn(10)) {
|
|
assert(hold_for < port::kMaxInt64 / 10);
|
|
hold_for *= 10;
|
|
// Hold 1% of snapshots for 100x more
|
|
if (thread->rand.OneIn(10)) {
|
|
assert(hold_for < port::kMaxInt64 / 10);
|
|
hold_for *= 10;
|
|
}
|
|
}
|
|
}
|
|
uint64_t release_at = std::min(FLAGS_ops_per_thread - 1, i + hold_for);
|
|
thread->snapshot_queue.emplace(release_at, snap_state);
|
|
}
|
|
|
|
Status StressTest::MaybeReleaseSnapshots(ThreadState* thread, uint64_t i) {
|
|
while (!thread->snapshot_queue.empty() &&
|
|
i >= thread->snapshot_queue.front().first) {
|
|
auto snap_state = thread->snapshot_queue.front().second;
|
|
assert(snap_state.snapshot);
|
|
// Note: this is unsafe as the cf might be dropped concurrently. But
|
|
// it is ok since unclean cf drop is cunnrently not supported by write
|
|
// prepared transactions.
|
|
Status s = AssertSame(db_, column_families_[snap_state.cf_at], snap_state);
|
|
db_->ReleaseSnapshot(snap_state.snapshot);
|
|
delete snap_state.key_vec;
|
|
thread->snapshot_queue.pop();
|
|
if (!s.ok()) {
|
|
return s;
|
|
}
|
|
}
|
|
return Status::OK();
|
|
}
|
|
|
|
void StressTest::TestCompactRange(ThreadState* thread, int64_t rand_key,
|
|
const Slice& start_key,
|
|
ColumnFamilyHandle* column_family) {
|
|
int64_t end_key_num;
|
|
if (port::kMaxInt64 - rand_key < FLAGS_compact_range_width) {
|
|
end_key_num = port::kMaxInt64;
|
|
} else {
|
|
end_key_num = FLAGS_compact_range_width + rand_key;
|
|
}
|
|
std::string end_key_buf = Key(end_key_num);
|
|
Slice end_key(end_key_buf);
|
|
|
|
CompactRangeOptions cro;
|
|
cro.exclusive_manual_compaction = static_cast<bool>(thread->rand.Next() % 2);
|
|
cro.change_level = static_cast<bool>(thread->rand.Next() % 2);
|
|
std::vector<BottommostLevelCompaction> bottom_level_styles = {
|
|
BottommostLevelCompaction::kSkip,
|
|
BottommostLevelCompaction::kIfHaveCompactionFilter,
|
|
BottommostLevelCompaction::kForce,
|
|
BottommostLevelCompaction::kForceOptimized};
|
|
cro.bottommost_level_compaction =
|
|
bottom_level_styles[thread->rand.Next() %
|
|
static_cast<uint32_t>(bottom_level_styles.size())];
|
|
cro.allow_write_stall = static_cast<bool>(thread->rand.Next() % 2);
|
|
cro.max_subcompactions = static_cast<uint32_t>(thread->rand.Next() % 4);
|
|
|
|
const Snapshot* pre_snapshot = nullptr;
|
|
uint32_t pre_hash = 0;
|
|
if (thread->rand.OneIn(2)) {
|
|
// Do some validation by declaring a snapshot and compare the data before
|
|
// and after the compaction
|
|
pre_snapshot = db_->GetSnapshot();
|
|
pre_hash =
|
|
GetRangeHash(thread, pre_snapshot, column_family, start_key, end_key);
|
|
}
|
|
|
|
Status status = db_->CompactRange(cro, column_family, &start_key, &end_key);
|
|
|
|
if (!status.ok()) {
|
|
fprintf(stdout, "Unable to perform CompactRange(): %s\n",
|
|
status.ToString().c_str());
|
|
}
|
|
|
|
if (pre_snapshot != nullptr) {
|
|
uint32_t post_hash =
|
|
GetRangeHash(thread, pre_snapshot, column_family, start_key, end_key);
|
|
if (pre_hash != post_hash) {
|
|
fprintf(stderr,
|
|
"Data hash different before and after compact range "
|
|
"start_key %s end_key %s\n",
|
|
start_key.ToString(true).c_str(), end_key.ToString(true).c_str());
|
|
thread->stats.AddErrors(1);
|
|
// Fail fast to preserve the DB state.
|
|
thread->shared->SetVerificationFailure();
|
|
}
|
|
db_->ReleaseSnapshot(pre_snapshot);
|
|
}
|
|
}
|
|
|
|
uint32_t StressTest::GetRangeHash(ThreadState* thread, const Snapshot* snapshot,
|
|
ColumnFamilyHandle* column_family,
|
|
const Slice& start_key,
|
|
const Slice& end_key) {
|
|
const std::string kCrcCalculatorSepearator = ";";
|
|
uint32_t crc = 0;
|
|
ReadOptions ro;
|
|
ro.snapshot = snapshot;
|
|
ro.total_order_seek = true;
|
|
std::string ts_str;
|
|
Slice ts;
|
|
if (FLAGS_user_timestamp_size > 0) {
|
|
ts_str = GenerateTimestampForRead();
|
|
ts = ts_str;
|
|
ro.timestamp = &ts;
|
|
}
|
|
std::unique_ptr<Iterator> it(db_->NewIterator(ro, column_family));
|
|
for (it->Seek(start_key);
|
|
it->Valid() && options_.comparator->Compare(it->key(), end_key) <= 0;
|
|
it->Next()) {
|
|
crc = crc32c::Extend(crc, it->key().data(), it->key().size());
|
|
crc = crc32c::Extend(crc, kCrcCalculatorSepearator.data(), 1);
|
|
crc = crc32c::Extend(crc, it->value().data(), it->value().size());
|
|
crc = crc32c::Extend(crc, kCrcCalculatorSepearator.data(), 1);
|
|
}
|
|
if (!it->status().ok()) {
|
|
fprintf(stderr, "Iterator non-OK when calculating range CRC: %s\n",
|
|
it->status().ToString().c_str());
|
|
thread->stats.AddErrors(1);
|
|
// Fail fast to preserve the DB state.
|
|
thread->shared->SetVerificationFailure();
|
|
}
|
|
return crc;
|
|
}
|
|
|
|
void StressTest::PrintEnv() const {
|
|
fprintf(stdout, "RocksDB version : %d.%d\n", kMajorVersion,
|
|
kMinorVersion);
|
|
fprintf(stdout, "Format version : %d\n", FLAGS_format_version);
|
|
fprintf(stdout, "TransactionDB : %s\n",
|
|
FLAGS_use_txn ? "true" : "false");
|
|
#ifndef ROCKSDB_LITE
|
|
fprintf(stdout, "Stacked BlobDB : %s\n",
|
|
FLAGS_use_blob_db ? "true" : "false");
|
|
#endif // !ROCKSDB_LITE
|
|
fprintf(stdout, "Read only mode : %s\n",
|
|
FLAGS_read_only ? "true" : "false");
|
|
fprintf(stdout, "Atomic flush : %s\n",
|
|
FLAGS_atomic_flush ? "true" : "false");
|
|
fprintf(stdout, "Column families : %d\n", FLAGS_column_families);
|
|
if (!FLAGS_test_batches_snapshots) {
|
|
fprintf(stdout, "Clear CFs one in : %d\n",
|
|
FLAGS_clear_column_family_one_in);
|
|
}
|
|
fprintf(stdout, "Number of threads : %d\n", FLAGS_threads);
|
|
fprintf(stdout, "Ops per thread : %lu\n",
|
|
(unsigned long)FLAGS_ops_per_thread);
|
|
std::string ttl_state("unused");
|
|
if (FLAGS_ttl > 0) {
|
|
ttl_state = NumberToString(FLAGS_ttl);
|
|
}
|
|
fprintf(stdout, "Time to live(sec) : %s\n", ttl_state.c_str());
|
|
fprintf(stdout, "Read percentage : %d%%\n", FLAGS_readpercent);
|
|
fprintf(stdout, "Prefix percentage : %d%%\n", FLAGS_prefixpercent);
|
|
fprintf(stdout, "Write percentage : %d%%\n", FLAGS_writepercent);
|
|
fprintf(stdout, "Delete percentage : %d%%\n", FLAGS_delpercent);
|
|
fprintf(stdout, "Delete range percentage : %d%%\n", FLAGS_delrangepercent);
|
|
fprintf(stdout, "No overwrite percentage : %d%%\n",
|
|
FLAGS_nooverwritepercent);
|
|
fprintf(stdout, "Iterate percentage : %d%%\n", FLAGS_iterpercent);
|
|
fprintf(stdout, "DB-write-buffer-size : %" PRIu64 "\n",
|
|
FLAGS_db_write_buffer_size);
|
|
fprintf(stdout, "Write-buffer-size : %d\n", FLAGS_write_buffer_size);
|
|
fprintf(stdout, "Iterations : %lu\n",
|
|
(unsigned long)FLAGS_num_iterations);
|
|
fprintf(stdout, "Max key : %lu\n",
|
|
(unsigned long)FLAGS_max_key);
|
|
fprintf(stdout, "Ratio #ops/#keys : %f\n",
|
|
(1.0 * FLAGS_ops_per_thread * FLAGS_threads) / FLAGS_max_key);
|
|
fprintf(stdout, "Num times DB reopens : %d\n", FLAGS_reopen);
|
|
fprintf(stdout, "Batches/snapshots : %d\n",
|
|
FLAGS_test_batches_snapshots);
|
|
fprintf(stdout, "Do update in place : %d\n", FLAGS_in_place_update);
|
|
fprintf(stdout, "Num keys per lock : %d\n",
|
|
1 << FLAGS_log2_keys_per_lock);
|
|
std::string compression = CompressionTypeToString(compression_type_e);
|
|
fprintf(stdout, "Compression : %s\n", compression.c_str());
|
|
std::string bottommost_compression =
|
|
CompressionTypeToString(bottommost_compression_type_e);
|
|
fprintf(stdout, "Bottommost Compression : %s\n",
|
|
bottommost_compression.c_str());
|
|
std::string checksum = ChecksumTypeToString(checksum_type_e);
|
|
fprintf(stdout, "Checksum type : %s\n", checksum.c_str());
|
|
fprintf(stdout, "File checksum impl : %s\n",
|
|
FLAGS_file_checksum_impl.c_str());
|
|
fprintf(stdout, "Bloom bits / key : %s\n",
|
|
FormatDoubleParam(FLAGS_bloom_bits).c_str());
|
|
fprintf(stdout, "Max subcompactions : %" PRIu64 "\n",
|
|
FLAGS_subcompactions);
|
|
fprintf(stdout, "Use MultiGet : %s\n",
|
|
FLAGS_use_multiget ? "true" : "false");
|
|
|
|
const char* memtablerep = "";
|
|
switch (FLAGS_rep_factory) {
|
|
case kSkipList:
|
|
memtablerep = "skip_list";
|
|
break;
|
|
case kHashSkipList:
|
|
memtablerep = "prefix_hash";
|
|
break;
|
|
case kVectorRep:
|
|
memtablerep = "vector";
|
|
break;
|
|
}
|
|
|
|
fprintf(stdout, "Memtablerep : %s\n", memtablerep);
|
|
|
|
fprintf(stdout, "Test kill odd : %d\n", rocksdb_kill_odds);
|
|
if (!rocksdb_kill_exclude_prefixes.empty()) {
|
|
fprintf(stdout, "Skipping kill points prefixes:\n");
|
|
for (auto& p : rocksdb_kill_exclude_prefixes) {
|
|
fprintf(stdout, " %s\n", p.c_str());
|
|
}
|
|
}
|
|
fprintf(stdout, "Periodic Compaction Secs : %" PRIu64 "\n",
|
|
FLAGS_periodic_compaction_seconds);
|
|
fprintf(stdout, "Compaction TTL : %" PRIu64 "\n",
|
|
FLAGS_compaction_ttl);
|
|
fprintf(stdout, "Background Purge : %d\n",
|
|
static_cast<int>(FLAGS_avoid_unnecessary_blocking_io));
|
|
fprintf(stdout, "Write DB ID to manifest : %d\n",
|
|
static_cast<int>(FLAGS_write_dbid_to_manifest));
|
|
fprintf(stdout, "Max Write Batch Group Size: %" PRIu64 "\n",
|
|
FLAGS_max_write_batch_group_size_bytes);
|
|
fprintf(stdout, "Use dynamic level : %d\n",
|
|
static_cast<int>(FLAGS_level_compaction_dynamic_level_bytes));
|
|
fprintf(stdout, "Read fault one in : %d\n", FLAGS_read_fault_one_in);
|
|
fprintf(stdout, "Write fault one in : %d\n", FLAGS_write_fault_one_in);
|
|
fprintf(stdout, "Sync fault injection : %d\n", FLAGS_sync_fault_injection);
|
|
fprintf(stdout, "Best efforts recovery : %d\n",
|
|
static_cast<int>(FLAGS_best_efforts_recovery));
|
|
fprintf(stdout, "User timestamp size bytes : %d\n",
|
|
static_cast<int>(FLAGS_user_timestamp_size));
|
|
|
|
fprintf(stdout, "------------------------------------------------\n");
|
|
}
|
|
|
|
void StressTest::Open() {
|
|
assert(db_ == nullptr);
|
|
#ifndef ROCKSDB_LITE
|
|
assert(txn_db_ == nullptr);
|
|
#endif
|
|
if (FLAGS_options_file.empty()) {
|
|
BlockBasedTableOptions block_based_options;
|
|
block_based_options.block_cache = cache_;
|
|
block_based_options.cache_index_and_filter_blocks =
|
|
FLAGS_cache_index_and_filter_blocks;
|
|
block_based_options.metadata_cache_options.top_level_index_pinning =
|
|
static_cast<PinningTier>(FLAGS_top_level_index_pinning);
|
|
block_based_options.metadata_cache_options.partition_pinning =
|
|
static_cast<PinningTier>(FLAGS_partition_pinning);
|
|
block_based_options.metadata_cache_options.unpartitioned_pinning =
|
|
static_cast<PinningTier>(FLAGS_unpartitioned_pinning);
|
|
block_based_options.block_cache_compressed = compressed_cache_;
|
|
block_based_options.checksum = checksum_type_e;
|
|
block_based_options.block_size = FLAGS_block_size;
|
|
block_based_options.format_version =
|
|
static_cast<uint32_t>(FLAGS_format_version);
|
|
block_based_options.index_block_restart_interval =
|
|
static_cast<int32_t>(FLAGS_index_block_restart_interval);
|
|
block_based_options.filter_policy = filter_policy_;
|
|
block_based_options.partition_filters = FLAGS_partition_filters;
|
|
block_based_options.optimize_filters_for_memory =
|
|
FLAGS_optimize_filters_for_memory;
|
|
block_based_options.index_type =
|
|
static_cast<BlockBasedTableOptions::IndexType>(FLAGS_index_type);
|
|
options_.table_factory.reset(
|
|
NewBlockBasedTableFactory(block_based_options));
|
|
options_.db_write_buffer_size = FLAGS_db_write_buffer_size;
|
|
options_.write_buffer_size = FLAGS_write_buffer_size;
|
|
options_.max_write_buffer_number = FLAGS_max_write_buffer_number;
|
|
options_.min_write_buffer_number_to_merge =
|
|
FLAGS_min_write_buffer_number_to_merge;
|
|
options_.max_write_buffer_number_to_maintain =
|
|
FLAGS_max_write_buffer_number_to_maintain;
|
|
options_.max_write_buffer_size_to_maintain =
|
|
FLAGS_max_write_buffer_size_to_maintain;
|
|
options_.memtable_prefix_bloom_size_ratio =
|
|
FLAGS_memtable_prefix_bloom_size_ratio;
|
|
options_.memtable_whole_key_filtering = FLAGS_memtable_whole_key_filtering;
|
|
options_.max_background_compactions = FLAGS_max_background_compactions;
|
|
options_.max_background_flushes = FLAGS_max_background_flushes;
|
|
options_.compaction_style =
|
|
static_cast<ROCKSDB_NAMESPACE::CompactionStyle>(FLAGS_compaction_style);
|
|
if (FLAGS_prefix_size >= 0) {
|
|
options_.prefix_extractor.reset(
|
|
NewFixedPrefixTransform(FLAGS_prefix_size));
|
|
}
|
|
options_.max_open_files = FLAGS_open_files;
|
|
options_.statistics = dbstats;
|
|
options_.env = db_stress_env;
|
|
options_.use_fsync = FLAGS_use_fsync;
|
|
options_.compaction_readahead_size = FLAGS_compaction_readahead_size;
|
|
options_.allow_mmap_reads = FLAGS_mmap_read;
|
|
options_.allow_mmap_writes = FLAGS_mmap_write;
|
|
options_.use_direct_reads = FLAGS_use_direct_reads;
|
|
options_.use_direct_io_for_flush_and_compaction =
|
|
FLAGS_use_direct_io_for_flush_and_compaction;
|
|
options_.recycle_log_file_num =
|
|
static_cast<size_t>(FLAGS_recycle_log_file_num);
|
|
options_.target_file_size_base = FLAGS_target_file_size_base;
|
|
options_.target_file_size_multiplier = FLAGS_target_file_size_multiplier;
|
|
options_.max_bytes_for_level_base = FLAGS_max_bytes_for_level_base;
|
|
options_.max_bytes_for_level_multiplier =
|
|
FLAGS_max_bytes_for_level_multiplier;
|
|
options_.level0_stop_writes_trigger = FLAGS_level0_stop_writes_trigger;
|
|
options_.level0_slowdown_writes_trigger =
|
|
FLAGS_level0_slowdown_writes_trigger;
|
|
options_.level0_file_num_compaction_trigger =
|
|
FLAGS_level0_file_num_compaction_trigger;
|
|
options_.compression = compression_type_e;
|
|
options_.bottommost_compression = bottommost_compression_type_e;
|
|
options_.compression_opts.max_dict_bytes = FLAGS_compression_max_dict_bytes;
|
|
options_.compression_opts.zstd_max_train_bytes =
|
|
FLAGS_compression_zstd_max_train_bytes;
|
|
options_.compression_opts.parallel_threads =
|
|
FLAGS_compression_parallel_threads;
|
|
options_.compression_opts.max_dict_buffer_bytes =
|
|
FLAGS_compression_max_dict_buffer_bytes;
|
|
options_.create_if_missing = true;
|
|
options_.max_manifest_file_size = FLAGS_max_manifest_file_size;
|
|
options_.inplace_update_support = FLAGS_in_place_update;
|
|
options_.max_subcompactions = static_cast<uint32_t>(FLAGS_subcompactions);
|
|
options_.allow_concurrent_memtable_write =
|
|
FLAGS_allow_concurrent_memtable_write;
|
|
options_.periodic_compaction_seconds = FLAGS_periodic_compaction_seconds;
|
|
options_.ttl = FLAGS_compaction_ttl;
|
|
options_.enable_pipelined_write = FLAGS_enable_pipelined_write;
|
|
options_.enable_write_thread_adaptive_yield =
|
|
FLAGS_enable_write_thread_adaptive_yield;
|
|
options_.compaction_options_universal.size_ratio =
|
|
FLAGS_universal_size_ratio;
|
|
options_.compaction_options_universal.min_merge_width =
|
|
FLAGS_universal_min_merge_width;
|
|
options_.compaction_options_universal.max_merge_width =
|
|
FLAGS_universal_max_merge_width;
|
|
options_.compaction_options_universal.max_size_amplification_percent =
|
|
FLAGS_universal_max_size_amplification_percent;
|
|
options_.atomic_flush = FLAGS_atomic_flush;
|
|
options_.avoid_unnecessary_blocking_io =
|
|
FLAGS_avoid_unnecessary_blocking_io;
|
|
options_.write_dbid_to_manifest = FLAGS_write_dbid_to_manifest;
|
|
options_.avoid_flush_during_recovery = FLAGS_avoid_flush_during_recovery;
|
|
options_.max_write_batch_group_size_bytes =
|
|
FLAGS_max_write_batch_group_size_bytes;
|
|
options_.level_compaction_dynamic_level_bytes =
|
|
FLAGS_level_compaction_dynamic_level_bytes;
|
|
options_.file_checksum_gen_factory =
|
|
GetFileChecksumImpl(FLAGS_file_checksum_impl);
|
|
options_.track_and_verify_wals_in_manifest = true;
|
|
|
|
// Integrated BlobDB
|
|
options_.enable_blob_files = FLAGS_enable_blob_files;
|
|
options_.min_blob_size = FLAGS_min_blob_size;
|
|
options_.blob_file_size = FLAGS_blob_file_size;
|
|
options_.blob_compression_type =
|
|
StringToCompressionType(FLAGS_blob_compression_type.c_str());
|
|
options_.enable_blob_garbage_collection =
|
|
FLAGS_enable_blob_garbage_collection;
|
|
options_.blob_garbage_collection_age_cutoff =
|
|
FLAGS_blob_garbage_collection_age_cutoff;
|
|
} else {
|
|
#ifdef ROCKSDB_LITE
|
|
fprintf(stderr, "--options_file not supported in lite mode\n");
|
|
exit(1);
|
|
#else
|
|
DBOptions db_options;
|
|
std::vector<ColumnFamilyDescriptor> cf_descriptors;
|
|
Status s = LoadOptionsFromFile(FLAGS_options_file, db_stress_env,
|
|
&db_options, &cf_descriptors);
|
|
db_options.env = new DbStressEnvWrapper(db_stress_env);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "Unable to load options file %s --- %s\n",
|
|
FLAGS_options_file.c_str(), s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
options_ = Options(db_options, cf_descriptors[0].options);
|
|
#endif // ROCKSDB_LITE
|
|
}
|
|
|
|
if (FLAGS_rate_limiter_bytes_per_sec > 0) {
|
|
options_.rate_limiter.reset(NewGenericRateLimiter(
|
|
FLAGS_rate_limiter_bytes_per_sec, 1000 /* refill_period_us */,
|
|
10 /* fairness */,
|
|
FLAGS_rate_limit_bg_reads ? RateLimiter::Mode::kReadsOnly
|
|
: RateLimiter::Mode::kWritesOnly));
|
|
if (FLAGS_rate_limit_bg_reads) {
|
|
options_.new_table_reader_for_compaction_inputs = true;
|
|
}
|
|
}
|
|
if (FLAGS_sst_file_manager_bytes_per_sec > 0 ||
|
|
FLAGS_sst_file_manager_bytes_per_truncate > 0) {
|
|
Status status;
|
|
options_.sst_file_manager.reset(NewSstFileManager(
|
|
db_stress_env, options_.info_log, "" /* trash_dir */,
|
|
static_cast<int64_t>(FLAGS_sst_file_manager_bytes_per_sec),
|
|
true /* delete_existing_trash */, &status,
|
|
0.25 /* max_trash_db_ratio */,
|
|
FLAGS_sst_file_manager_bytes_per_truncate));
|
|
if (!status.ok()) {
|
|
fprintf(stderr, "SstFileManager creation failed: %s\n",
|
|
status.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (FLAGS_prefix_size == 0 && FLAGS_rep_factory == kHashSkipList) {
|
|
fprintf(stderr,
|
|
"prefeix_size cannot be zero if memtablerep == prefix_hash\n");
|
|
exit(1);
|
|
}
|
|
if (FLAGS_prefix_size != 0 && FLAGS_rep_factory != kHashSkipList) {
|
|
fprintf(stderr,
|
|
"WARNING: prefix_size is non-zero but "
|
|
"memtablerep != prefix_hash\n");
|
|
}
|
|
switch (FLAGS_rep_factory) {
|
|
case kSkipList:
|
|
// no need to do anything
|
|
break;
|
|
#ifndef ROCKSDB_LITE
|
|
case kHashSkipList:
|
|
options_.memtable_factory.reset(NewHashSkipListRepFactory(10000));
|
|
break;
|
|
case kVectorRep:
|
|
options_.memtable_factory.reset(new VectorRepFactory());
|
|
break;
|
|
#else
|
|
default:
|
|
fprintf(stderr,
|
|
"RocksdbLite only supports skip list mem table. Skip "
|
|
"--rep_factory\n");
|
|
#endif // ROCKSDB_LITE
|
|
}
|
|
|
|
if (FLAGS_use_full_merge_v1) {
|
|
options_.merge_operator = MergeOperators::CreateDeprecatedPutOperator();
|
|
} else {
|
|
options_.merge_operator = MergeOperators::CreatePutOperator();
|
|
}
|
|
if (FLAGS_enable_compaction_filter) {
|
|
options_.compaction_filter_factory =
|
|
std::make_shared<DbStressCompactionFilterFactory>();
|
|
}
|
|
options_.table_properties_collector_factories.emplace_back(
|
|
std::make_shared<DbStressTablePropertiesCollectorFactory>());
|
|
|
|
options_.best_efforts_recovery = FLAGS_best_efforts_recovery;
|
|
options_.paranoid_file_checks = FLAGS_paranoid_file_checks;
|
|
|
|
if ((options_.enable_blob_files || options_.enable_blob_garbage_collection ||
|
|
FLAGS_allow_setting_blob_options_dynamically) &&
|
|
(FLAGS_use_merge || FLAGS_backup_one_in > 0 ||
|
|
FLAGS_best_efforts_recovery)) {
|
|
fprintf(stderr,
|
|
"Integrated BlobDB is currently incompatible with Merge, "
|
|
"backup/restore, and best-effort recovery\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (options_.enable_blob_files) {
|
|
fprintf(stdout,
|
|
"Integrated BlobDB: blob files enabled, min blob size %" PRIu64
|
|
", blob file size %" PRIu64 ", blob compression type %s\n",
|
|
options_.min_blob_size, options_.blob_file_size,
|
|
CompressionTypeToString(options_.blob_compression_type).c_str());
|
|
}
|
|
|
|
if (options_.enable_blob_garbage_collection) {
|
|
fprintf(stdout, "Integrated BlobDB: blob GC enabled, cutoff %f\n",
|
|
options_.blob_garbage_collection_age_cutoff);
|
|
}
|
|
|
|
fprintf(stdout, "DB path: [%s]\n", FLAGS_db.c_str());
|
|
|
|
Status s;
|
|
|
|
if (FLAGS_user_timestamp_size > 0) {
|
|
CheckAndSetOptionsForUserTimestamp();
|
|
}
|
|
|
|
if (FLAGS_ttl == -1) {
|
|
std::vector<std::string> existing_column_families;
|
|
s = DB::ListColumnFamilies(DBOptions(options_), FLAGS_db,
|
|
&existing_column_families); // ignore errors
|
|
if (!s.ok()) {
|
|
// DB doesn't exist
|
|
assert(existing_column_families.empty());
|
|
assert(column_family_names_.empty());
|
|
column_family_names_.push_back(kDefaultColumnFamilyName);
|
|
} else if (column_family_names_.empty()) {
|
|
// this is the first call to the function Open()
|
|
column_family_names_ = existing_column_families;
|
|
} else {
|
|
// this is a reopen. just assert that existing column_family_names are
|
|
// equivalent to what we remember
|
|
auto sorted_cfn = column_family_names_;
|
|
std::sort(sorted_cfn.begin(), sorted_cfn.end());
|
|
std::sort(existing_column_families.begin(),
|
|
existing_column_families.end());
|
|
if (sorted_cfn != existing_column_families) {
|
|
fprintf(stderr, "Expected column families differ from the existing:\n");
|
|
fprintf(stderr, "Expected: {");
|
|
for (auto cf : sorted_cfn) {
|
|
fprintf(stderr, "%s ", cf.c_str());
|
|
}
|
|
fprintf(stderr, "}\n");
|
|
fprintf(stderr, "Existing: {");
|
|
for (auto cf : existing_column_families) {
|
|
fprintf(stderr, "%s ", cf.c_str());
|
|
}
|
|
fprintf(stderr, "}\n");
|
|
}
|
|
assert(sorted_cfn == existing_column_families);
|
|
}
|
|
std::vector<ColumnFamilyDescriptor> cf_descriptors;
|
|
for (auto name : column_family_names_) {
|
|
if (name != kDefaultColumnFamilyName) {
|
|
new_column_family_name_ =
|
|
std::max(new_column_family_name_.load(), std::stoi(name) + 1);
|
|
}
|
|
cf_descriptors.emplace_back(name, ColumnFamilyOptions(options_));
|
|
}
|
|
while (cf_descriptors.size() < (size_t)FLAGS_column_families) {
|
|
std::string name = ToString(new_column_family_name_.load());
|
|
new_column_family_name_++;
|
|
cf_descriptors.emplace_back(name, ColumnFamilyOptions(options_));
|
|
column_family_names_.push_back(name);
|
|
}
|
|
options_.listeners.clear();
|
|
options_.listeners.emplace_back(
|
|
new DbStressListener(FLAGS_db, options_.db_paths, cf_descriptors));
|
|
options_.create_missing_column_families = true;
|
|
if (!FLAGS_use_txn) {
|
|
#ifndef ROCKSDB_LITE
|
|
// StackableDB-based BlobDB
|
|
if (FLAGS_use_blob_db) {
|
|
blob_db::BlobDBOptions blob_db_options;
|
|
blob_db_options.min_blob_size = FLAGS_blob_db_min_blob_size;
|
|
blob_db_options.bytes_per_sync = FLAGS_blob_db_bytes_per_sync;
|
|
blob_db_options.blob_file_size = FLAGS_blob_db_file_size;
|
|
blob_db_options.enable_garbage_collection = FLAGS_blob_db_enable_gc;
|
|
blob_db_options.garbage_collection_cutoff = FLAGS_blob_db_gc_cutoff;
|
|
|
|
blob_db::BlobDB* blob_db = nullptr;
|
|
s = blob_db::BlobDB::Open(options_, blob_db_options, FLAGS_db,
|
|
cf_descriptors, &column_families_, &blob_db);
|
|
if (s.ok()) {
|
|
db_ = blob_db;
|
|
}
|
|
} else
|
|
#endif // !ROCKSDB_LITE
|
|
{
|
|
if (db_preload_finished_.load() && FLAGS_read_only) {
|
|
s = DB::OpenForReadOnly(DBOptions(options_), FLAGS_db, cf_descriptors,
|
|
&column_families_, &db_);
|
|
} else {
|
|
s = DB::Open(DBOptions(options_), FLAGS_db, cf_descriptors,
|
|
&column_families_, &db_);
|
|
}
|
|
}
|
|
} else {
|
|
#ifndef ROCKSDB_LITE
|
|
TransactionDBOptions txn_db_options;
|
|
assert(FLAGS_txn_write_policy <= TxnDBWritePolicy::WRITE_UNPREPARED);
|
|
txn_db_options.write_policy =
|
|
static_cast<TxnDBWritePolicy>(FLAGS_txn_write_policy);
|
|
if (FLAGS_unordered_write) {
|
|
assert(txn_db_options.write_policy == TxnDBWritePolicy::WRITE_PREPARED);
|
|
options_.unordered_write = true;
|
|
options_.two_write_queues = true;
|
|
txn_db_options.skip_concurrency_control = true;
|
|
}
|
|
s = TransactionDB::Open(options_, txn_db_options, FLAGS_db,
|
|
cf_descriptors, &column_families_, &txn_db_);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "Error in opening the TransactionDB [%s]\n",
|
|
s.ToString().c_str());
|
|
fflush(stderr);
|
|
}
|
|
assert(s.ok());
|
|
db_ = txn_db_;
|
|
// after a crash, rollback to commit recovered transactions
|
|
std::vector<Transaction*> trans;
|
|
txn_db_->GetAllPreparedTransactions(&trans);
|
|
Random rand(static_cast<uint32_t>(FLAGS_seed));
|
|
for (auto txn : trans) {
|
|
if (rand.OneIn(2)) {
|
|
s = txn->Commit();
|
|
assert(s.ok());
|
|
} else {
|
|
s = txn->Rollback();
|
|
assert(s.ok());
|
|
}
|
|
delete txn;
|
|
}
|
|
trans.clear();
|
|
txn_db_->GetAllPreparedTransactions(&trans);
|
|
assert(trans.size() == 0);
|
|
#endif
|
|
}
|
|
assert(!s.ok() || column_families_.size() ==
|
|
static_cast<size_t>(FLAGS_column_families));
|
|
|
|
if (FLAGS_test_secondary) {
|
|
#ifndef ROCKSDB_LITE
|
|
secondaries_.resize(FLAGS_threads);
|
|
std::fill(secondaries_.begin(), secondaries_.end(), nullptr);
|
|
secondary_cfh_lists_.clear();
|
|
secondary_cfh_lists_.resize(FLAGS_threads);
|
|
Options tmp_opts;
|
|
// TODO(yanqin) support max_open_files != -1 for secondary instance.
|
|
tmp_opts.max_open_files = -1;
|
|
tmp_opts.statistics = dbstats_secondaries;
|
|
tmp_opts.env = db_stress_env;
|
|
for (size_t i = 0; i != static_cast<size_t>(FLAGS_threads); ++i) {
|
|
const std::string secondary_path =
|
|
FLAGS_secondaries_base + "/" + std::to_string(i);
|
|
s = DB::OpenAsSecondary(tmp_opts, FLAGS_db, secondary_path,
|
|
cf_descriptors, &secondary_cfh_lists_[i],
|
|
&secondaries_[i]);
|
|
if (!s.ok()) {
|
|
break;
|
|
}
|
|
}
|
|
assert(s.ok());
|
|
#else
|
|
fprintf(stderr, "Secondary is not supported in RocksDBLite\n");
|
|
exit(1);
|
|
#endif
|
|
}
|
|
if (FLAGS_continuous_verification_interval > 0 && !cmp_db_) {
|
|
Options tmp_opts;
|
|
// TODO(yanqin) support max_open_files != -1 for secondary instance.
|
|
tmp_opts.max_open_files = -1;
|
|
tmp_opts.env = db_stress_env;
|
|
std::string secondary_path = FLAGS_secondaries_base + "/cmp_database";
|
|
s = DB::OpenAsSecondary(tmp_opts, FLAGS_db, secondary_path,
|
|
cf_descriptors, &cmp_cfhs_, &cmp_db_);
|
|
assert(!s.ok() ||
|
|
cmp_cfhs_.size() == static_cast<size_t>(FLAGS_column_families));
|
|
}
|
|
} else {
|
|
#ifndef ROCKSDB_LITE
|
|
DBWithTTL* db_with_ttl;
|
|
s = DBWithTTL::Open(options_, FLAGS_db, &db_with_ttl, FLAGS_ttl);
|
|
db_ = db_with_ttl;
|
|
if (FLAGS_test_secondary) {
|
|
secondaries_.resize(FLAGS_threads);
|
|
std::fill(secondaries_.begin(), secondaries_.end(), nullptr);
|
|
Options tmp_opts;
|
|
tmp_opts.env = options_.env;
|
|
// TODO(yanqin) support max_open_files != -1 for secondary instance.
|
|
tmp_opts.max_open_files = -1;
|
|
for (size_t i = 0; i != static_cast<size_t>(FLAGS_threads); ++i) {
|
|
const std::string secondary_path =
|
|
FLAGS_secondaries_base + "/" + std::to_string(i);
|
|
s = DB::OpenAsSecondary(tmp_opts, FLAGS_db, secondary_path,
|
|
&secondaries_[i]);
|
|
if (!s.ok()) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
fprintf(stderr, "TTL is not supported in RocksDBLite\n");
|
|
exit(1);
|
|
#endif
|
|
}
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "open error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
void StressTest::Reopen(ThreadState* thread) {
|
|
#ifndef ROCKSDB_LITE
|
|
// BG jobs in WritePrepared must be canceled first because i) they can access
|
|
// the db via a callbac ii) they hold on to a snapshot and the upcoming
|
|
// ::Close would complain about it.
|
|
const bool write_prepared = FLAGS_use_txn && FLAGS_txn_write_policy != 0;
|
|
bool bg_canceled = false;
|
|
if (write_prepared || thread->rand.OneIn(2)) {
|
|
const bool wait =
|
|
write_prepared || static_cast<bool>(thread->rand.OneIn(2));
|
|
CancelAllBackgroundWork(db_, wait);
|
|
bg_canceled = wait;
|
|
}
|
|
assert(!write_prepared || bg_canceled);
|
|
(void) bg_canceled;
|
|
#else
|
|
(void) thread;
|
|
#endif
|
|
|
|
for (auto cf : column_families_) {
|
|
delete cf;
|
|
}
|
|
column_families_.clear();
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
if (thread->rand.OneIn(2)) {
|
|
Status s = db_->Close();
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "Non-ok close status: %s\n", s.ToString().c_str());
|
|
fflush(stderr);
|
|
}
|
|
assert(s.ok());
|
|
}
|
|
#endif
|
|
delete db_;
|
|
db_ = nullptr;
|
|
#ifndef ROCKSDB_LITE
|
|
txn_db_ = nullptr;
|
|
#endif
|
|
|
|
assert(secondaries_.size() == secondary_cfh_lists_.size());
|
|
size_t n = secondaries_.size();
|
|
for (size_t i = 0; i != n; ++i) {
|
|
for (auto* cf : secondary_cfh_lists_[i]) {
|
|
delete cf;
|
|
}
|
|
secondary_cfh_lists_[i].clear();
|
|
delete secondaries_[i];
|
|
}
|
|
secondaries_.clear();
|
|
|
|
num_times_reopened_++;
|
|
auto now = clock_->NowMicros();
|
|
fprintf(stdout, "%s Reopening database for the %dth time\n",
|
|
clock_->TimeToString(now / 1000000).c_str(), num_times_reopened_);
|
|
Open();
|
|
}
|
|
|
|
void StressTest::CheckAndSetOptionsForUserTimestamp() {
|
|
assert(FLAGS_user_timestamp_size > 0);
|
|
const Comparator* const cmp = test::ComparatorWithU64Ts();
|
|
assert(cmp);
|
|
if (FLAGS_user_timestamp_size != cmp->timestamp_size()) {
|
|
fprintf(stderr,
|
|
"Only -user_timestamp_size=%d is supported in stress test.\n",
|
|
static_cast<int>(cmp->timestamp_size()));
|
|
exit(1);
|
|
}
|
|
if (FLAGS_nooverwritepercent > 0) {
|
|
fprintf(stderr,
|
|
"-nooverwritepercent must be 0 because SingleDelete must be "
|
|
"disabled.\n");
|
|
exit(1);
|
|
}
|
|
if (FLAGS_use_merge || FLAGS_use_full_merge_v1) {
|
|
fprintf(stderr, "Merge does not support timestamp yet.\n");
|
|
exit(1);
|
|
}
|
|
if (FLAGS_delrangepercent > 0) {
|
|
fprintf(stderr, "DeleteRange does not support timestamp yet.\n");
|
|
exit(1);
|
|
}
|
|
if (FLAGS_use_txn) {
|
|
fprintf(stderr, "TransactionDB does not support timestamp yet.\n");
|
|
exit(1);
|
|
}
|
|
if (FLAGS_read_only) {
|
|
fprintf(stderr, "When opened as read-only, timestamp not supported.\n");
|
|
exit(1);
|
|
}
|
|
if (FLAGS_test_secondary || FLAGS_secondary_catch_up_one_in > 0 ||
|
|
FLAGS_continuous_verification_interval > 0) {
|
|
fprintf(stderr, "Secondary instance does not support timestamp.\n");
|
|
exit(1);
|
|
}
|
|
if (FLAGS_checkpoint_one_in > 0) {
|
|
fprintf(stderr,
|
|
"-checkpoint_one_in=%d requires "
|
|
"DBImplReadOnly, which is not supported with timestamp\n",
|
|
FLAGS_checkpoint_one_in);
|
|
exit(1);
|
|
}
|
|
#ifndef ROCKSDB_LITE
|
|
if (FLAGS_enable_blob_files || FLAGS_use_blob_db) {
|
|
fprintf(stderr, "BlobDB not supported with timestamp.\n");
|
|
exit(1);
|
|
}
|
|
#endif // !ROCKSDB_LITE
|
|
if (FLAGS_enable_compaction_filter) {
|
|
fprintf(stderr, "CompactionFilter not supported with timestamp.\n");
|
|
exit(1);
|
|
}
|
|
if (FLAGS_test_cf_consistency || FLAGS_test_batches_snapshots) {
|
|
fprintf(stderr,
|
|
"Due to per-key ts-seq ordering constraint, only the (default) "
|
|
"non-batched test is supported with timestamp.\n");
|
|
exit(1);
|
|
}
|
|
if (FLAGS_ingest_external_file_one_in > 0) {
|
|
fprintf(stderr, "Bulk loading may not support timestamp yet.\n");
|
|
exit(1);
|
|
}
|
|
options_.comparator = cmp;
|
|
}
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
#endif // GFLAGS
|