a27fce408e
Summary: This commit implements automatic recovery from a Status::NoSpace() error during background operations such as write callback, flush and compaction. The broad design is as follows - 1. Compaction errors are treated as soft errors and don't put the database in read-only mode. A compaction is delayed until enough free disk space is available to accomodate the compaction outputs, which is estimated based on the input size. This means that users can continue to write, and we rely on the WriteController to delay or stop writes if the compaction debt becomes too high due to persistent low disk space condition 2. Errors during write callback and flush are treated as hard errors, i.e the database is put in read-only mode and goes back to read-write only fater certain recovery actions are taken. 3. Both types of recovery rely on the SstFileManagerImpl to poll for sufficient disk space. We assume that there is a 1-1 mapping between an SFM and the underlying OS storage container. For cases where multiple DBs are hosted on a single storage container, the user is expected to allocate a single SFM instance and use the same one for all the DBs. If no SFM is specified by the user, DBImpl::Open() will allocate one, but this will be one per DB and each DB will recover independently. The recovery implemented by SFM is as follows - a) On the first occurance of an out of space error during compaction, subsequent compactions will be delayed until the disk free space check indicates enough available space. The required space is computed as the sum of input sizes. b) The free space check requirement will be removed once the amount of free space is greater than the size reserved by in progress compactions when the first error occured c) If the out of space error is a hard error, a background thread in SFM will poll for sufficient headroom before triggering the recovery of the database and putting it in write-only mode. The headroom is calculated as the sum of the write_buffer_size of all the DB instances associated with the SFM 4. EventListener callbacks will be called at the start and completion of automatic recovery. Users can disable the auto recov ery in the start callback, and later initiate it manually by calling DB::Resume() Todo: 1. More extensive testing 2. Add disk full condition to db_stress (follow-on PR) Pull Request resolved: https://github.com/facebook/rocksdb/pull/4164 Differential Revision: D9846378 Pulled By: anand1976 fbshipit-source-id: 80ea875dbd7f00205e19c82215ff6e37da10da4a
958 lines
35 KiB
C++
958 lines
35 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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#ifndef ROCKSDB_LITE
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#include <algorithm>
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#include <map>
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#include <string>
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#include <tuple>
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#include "db/column_family.h"
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#include "db/compaction_job.h"
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#include "db/error_handler.h"
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#include "db/version_set.h"
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#include "rocksdb/cache.h"
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#include "rocksdb/db.h"
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#include "rocksdb/options.h"
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#include "rocksdb/write_buffer_manager.h"
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#include "table/mock_table.h"
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#include "util/file_reader_writer.h"
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#include "util/string_util.h"
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#include "util/testharness.h"
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#include "util/testutil.h"
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#include "utilities/merge_operators.h"
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namespace rocksdb {
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namespace {
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void VerifyInitializationOfCompactionJobStats(
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const CompactionJobStats& compaction_job_stats) {
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#if !defined(IOS_CROSS_COMPILE)
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ASSERT_EQ(compaction_job_stats.elapsed_micros, 0U);
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ASSERT_EQ(compaction_job_stats.num_input_records, 0U);
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ASSERT_EQ(compaction_job_stats.num_input_files, 0U);
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ASSERT_EQ(compaction_job_stats.num_input_files_at_output_level, 0U);
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ASSERT_EQ(compaction_job_stats.num_output_records, 0U);
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ASSERT_EQ(compaction_job_stats.num_output_files, 0U);
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ASSERT_EQ(compaction_job_stats.is_manual_compaction, true);
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ASSERT_EQ(compaction_job_stats.total_input_bytes, 0U);
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ASSERT_EQ(compaction_job_stats.total_output_bytes, 0U);
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ASSERT_EQ(compaction_job_stats.total_input_raw_key_bytes, 0U);
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ASSERT_EQ(compaction_job_stats.total_input_raw_value_bytes, 0U);
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ASSERT_EQ(compaction_job_stats.smallest_output_key_prefix[0], 0);
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ASSERT_EQ(compaction_job_stats.largest_output_key_prefix[0], 0);
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ASSERT_EQ(compaction_job_stats.num_records_replaced, 0U);
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ASSERT_EQ(compaction_job_stats.num_input_deletion_records, 0U);
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ASSERT_EQ(compaction_job_stats.num_expired_deletion_records, 0U);
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ASSERT_EQ(compaction_job_stats.num_corrupt_keys, 0U);
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#endif // !defined(IOS_CROSS_COMPILE)
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}
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} // namespace
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// TODO(icanadi) Make it simpler once we mock out VersionSet
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class CompactionJobTest : public testing::Test {
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public:
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CompactionJobTest()
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: env_(Env::Default()),
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dbname_(test::PerThreadDBPath("compaction_job_test")),
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db_options_(),
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mutable_cf_options_(cf_options_),
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table_cache_(NewLRUCache(50000, 16)),
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write_buffer_manager_(db_options_.db_write_buffer_size),
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versions_(new VersionSet(dbname_, &db_options_, env_options_,
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table_cache_.get(), &write_buffer_manager_,
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&write_controller_)),
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shutting_down_(false),
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preserve_deletes_seqnum_(0),
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mock_table_factory_(new mock::MockTableFactory()),
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error_handler_(nullptr, db_options_, &mutex_) {
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EXPECT_OK(env_->CreateDirIfMissing(dbname_));
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db_options_.db_paths.emplace_back(dbname_,
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std::numeric_limits<uint64_t>::max());
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}
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std::string GenerateFileName(uint64_t file_number) {
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FileMetaData meta;
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std::vector<DbPath> db_paths;
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db_paths.emplace_back(dbname_, std::numeric_limits<uint64_t>::max());
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meta.fd = FileDescriptor(file_number, 0, 0);
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return TableFileName(db_paths, meta.fd.GetNumber(), meta.fd.GetPathId());
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}
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std::string KeyStr(const std::string& user_key, const SequenceNumber seq_num,
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const ValueType t) {
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return InternalKey(user_key, seq_num, t).Encode().ToString();
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}
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void AddMockFile(const stl_wrappers::KVMap& contents, int level = 0) {
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assert(contents.size() > 0);
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bool first_key = true;
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std::string smallest, largest;
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InternalKey smallest_key, largest_key;
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SequenceNumber smallest_seqno = kMaxSequenceNumber;
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SequenceNumber largest_seqno = 0;
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for (auto kv : contents) {
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ParsedInternalKey key;
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std::string skey;
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std::string value;
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std::tie(skey, value) = kv;
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ParseInternalKey(skey, &key);
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smallest_seqno = std::min(smallest_seqno, key.sequence);
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largest_seqno = std::max(largest_seqno, key.sequence);
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if (first_key ||
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cfd_->user_comparator()->Compare(key.user_key, smallest) < 0) {
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smallest.assign(key.user_key.data(), key.user_key.size());
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smallest_key.DecodeFrom(skey);
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}
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if (first_key ||
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cfd_->user_comparator()->Compare(key.user_key, largest) > 0) {
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largest.assign(key.user_key.data(), key.user_key.size());
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largest_key.DecodeFrom(skey);
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}
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first_key = false;
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}
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uint64_t file_number = versions_->NewFileNumber();
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EXPECT_OK(mock_table_factory_->CreateMockTable(
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env_, GenerateFileName(file_number), std::move(contents)));
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VersionEdit edit;
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edit.AddFile(level, file_number, 0, 10, smallest_key, largest_key,
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smallest_seqno, largest_seqno, false);
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mutex_.Lock();
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versions_->LogAndApply(versions_->GetColumnFamilySet()->GetDefault(),
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mutable_cf_options_, &edit, &mutex_);
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mutex_.Unlock();
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}
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void SetLastSequence(const SequenceNumber sequence_number) {
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versions_->SetLastAllocatedSequence(sequence_number + 1);
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versions_->SetLastPublishedSequence(sequence_number + 1);
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versions_->SetLastSequence(sequence_number + 1);
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}
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// returns expected result after compaction
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stl_wrappers::KVMap CreateTwoFiles(bool gen_corrupted_keys) {
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auto expected_results = mock::MakeMockFile();
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const int kKeysPerFile = 10000;
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const int kCorruptKeysPerFile = 200;
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const int kMatchingKeys = kKeysPerFile / 2;
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SequenceNumber sequence_number = 0;
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auto corrupt_id = [&](int id) {
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return gen_corrupted_keys && id > 0 && id <= kCorruptKeysPerFile;
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};
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for (int i = 0; i < 2; ++i) {
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auto contents = mock::MakeMockFile();
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for (int k = 0; k < kKeysPerFile; ++k) {
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auto key = ToString(i * kMatchingKeys + k);
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auto value = ToString(i * kKeysPerFile + k);
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InternalKey internal_key(key, ++sequence_number, kTypeValue);
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// This is how the key will look like once it's written in bottommost
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// file
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InternalKey bottommost_internal_key(
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key, (key == "9999") ? sequence_number : 0, kTypeValue);
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if (corrupt_id(k)) {
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test::CorruptKeyType(&internal_key);
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test::CorruptKeyType(&bottommost_internal_key);
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}
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contents.insert({ internal_key.Encode().ToString(), value });
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if (i == 1 || k < kMatchingKeys || corrupt_id(k - kMatchingKeys)) {
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expected_results.insert(
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{ bottommost_internal_key.Encode().ToString(), value });
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}
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}
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AddMockFile(contents);
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}
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SetLastSequence(sequence_number);
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return expected_results;
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}
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void NewDB() {
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VersionEdit new_db;
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new_db.SetLogNumber(0);
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new_db.SetNextFile(2);
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new_db.SetLastSequence(0);
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const std::string manifest = DescriptorFileName(dbname_, 1);
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unique_ptr<WritableFile> file;
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Status s = env_->NewWritableFile(
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manifest, &file, env_->OptimizeForManifestWrite(env_options_));
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ASSERT_OK(s);
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unique_ptr<WritableFileWriter> file_writer(
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new WritableFileWriter(std::move(file), manifest, env_options_));
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{
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log::Writer log(std::move(file_writer), 0, false);
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std::string record;
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new_db.EncodeTo(&record);
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s = log.AddRecord(record);
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}
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ASSERT_OK(s);
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// Make "CURRENT" file that points to the new manifest file.
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s = SetCurrentFile(env_, dbname_, 1, nullptr);
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std::vector<ColumnFamilyDescriptor> column_families;
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cf_options_.table_factory = mock_table_factory_;
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cf_options_.merge_operator = merge_op_;
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cf_options_.compaction_filter = compaction_filter_.get();
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column_families.emplace_back(kDefaultColumnFamilyName, cf_options_);
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EXPECT_OK(versions_->Recover(column_families, false));
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cfd_ = versions_->GetColumnFamilySet()->GetDefault();
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}
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void RunCompaction(
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const std::vector<std::vector<FileMetaData*>>& input_files,
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const stl_wrappers::KVMap& expected_results,
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const std::vector<SequenceNumber>& snapshots = {},
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SequenceNumber earliest_write_conflict_snapshot = kMaxSequenceNumber) {
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auto cfd = versions_->GetColumnFamilySet()->GetDefault();
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size_t num_input_files = 0;
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std::vector<CompactionInputFiles> compaction_input_files;
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for (size_t level = 0; level < input_files.size(); level++) {
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auto level_files = input_files[level];
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CompactionInputFiles compaction_level;
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compaction_level.level = static_cast<int>(level);
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compaction_level.files.insert(compaction_level.files.end(),
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level_files.begin(), level_files.end());
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compaction_input_files.push_back(compaction_level);
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num_input_files += level_files.size();
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}
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Compaction compaction(cfd->current()->storage_info(), *cfd->ioptions(),
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*cfd->GetLatestMutableCFOptions(),
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compaction_input_files, 1, 1024 * 1024,
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10 * 1024 * 1024, 0, kNoCompression,
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cfd->ioptions()->compression_opts, 0, {}, true);
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compaction.SetInputVersion(cfd->current());
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LogBuffer log_buffer(InfoLogLevel::INFO_LEVEL, db_options_.info_log.get());
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mutex_.Lock();
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EventLogger event_logger(db_options_.info_log.get());
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// TODO(yiwu) add a mock snapshot checker and add test for it.
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SnapshotChecker* snapshot_checker = nullptr;
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CompactionJob compaction_job(
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0, &compaction, db_options_, env_options_, versions_.get(),
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&shutting_down_, preserve_deletes_seqnum_, &log_buffer, nullptr,
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nullptr, nullptr, &mutex_, &error_handler_, snapshots,
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earliest_write_conflict_snapshot, snapshot_checker, table_cache_,
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&event_logger, false, false, dbname_, &compaction_job_stats_);
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VerifyInitializationOfCompactionJobStats(compaction_job_stats_);
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compaction_job.Prepare();
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mutex_.Unlock();
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Status s;
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s = compaction_job.Run();
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ASSERT_OK(s);
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mutex_.Lock();
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ASSERT_OK(compaction_job.Install(*cfd->GetLatestMutableCFOptions()));
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mutex_.Unlock();
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if (expected_results.size() == 0) {
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ASSERT_GE(compaction_job_stats_.elapsed_micros, 0U);
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ASSERT_EQ(compaction_job_stats_.num_input_files, num_input_files);
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ASSERT_EQ(compaction_job_stats_.num_output_files, 0U);
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} else {
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ASSERT_GE(compaction_job_stats_.elapsed_micros, 0U);
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ASSERT_EQ(compaction_job_stats_.num_input_files, num_input_files);
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ASSERT_EQ(compaction_job_stats_.num_output_files, 1U);
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mock_table_factory_->AssertLatestFile(expected_results);
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}
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}
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Env* env_;
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std::string dbname_;
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EnvOptions env_options_;
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ImmutableDBOptions db_options_;
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ColumnFamilyOptions cf_options_;
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MutableCFOptions mutable_cf_options_;
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std::shared_ptr<Cache> table_cache_;
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WriteController write_controller_;
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WriteBufferManager write_buffer_manager_;
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std::unique_ptr<VersionSet> versions_;
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InstrumentedMutex mutex_;
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std::atomic<bool> shutting_down_;
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SequenceNumber preserve_deletes_seqnum_;
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std::shared_ptr<mock::MockTableFactory> mock_table_factory_;
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CompactionJobStats compaction_job_stats_;
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ColumnFamilyData* cfd_;
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std::unique_ptr<CompactionFilter> compaction_filter_;
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std::shared_ptr<MergeOperator> merge_op_;
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ErrorHandler error_handler_;
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};
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TEST_F(CompactionJobTest, Simple) {
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NewDB();
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auto expected_results = CreateTwoFiles(false);
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auto cfd = versions_->GetColumnFamilySet()->GetDefault();
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auto files = cfd->current()->storage_info()->LevelFiles(0);
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ASSERT_EQ(2U, files.size());
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RunCompaction({ files }, expected_results);
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}
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TEST_F(CompactionJobTest, SimpleCorrupted) {
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NewDB();
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auto expected_results = CreateTwoFiles(true);
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auto cfd = versions_->GetColumnFamilySet()->GetDefault();
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auto files = cfd->current()->storage_info()->LevelFiles(0);
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RunCompaction({files}, expected_results);
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ASSERT_EQ(compaction_job_stats_.num_corrupt_keys, 400U);
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}
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TEST_F(CompactionJobTest, SimpleDeletion) {
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NewDB();
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auto file1 = mock::MakeMockFile({{KeyStr("c", 4U, kTypeDeletion), ""},
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{KeyStr("c", 3U, kTypeValue), "val"}});
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AddMockFile(file1);
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auto file2 = mock::MakeMockFile({{KeyStr("b", 2U, kTypeValue), "val"},
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{KeyStr("b", 1U, kTypeValue), "val"}});
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AddMockFile(file2);
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auto expected_results =
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mock::MakeMockFile({{KeyStr("b", 0U, kTypeValue), "val"}});
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SetLastSequence(4U);
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auto files = cfd_->current()->storage_info()->LevelFiles(0);
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RunCompaction({files}, expected_results);
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}
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TEST_F(CompactionJobTest, OutputNothing) {
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NewDB();
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auto file1 = mock::MakeMockFile({{KeyStr("a", 1U, kTypeValue), "val"}});
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AddMockFile(file1);
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auto file2 = mock::MakeMockFile({{KeyStr("a", 2U, kTypeDeletion), ""}});
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AddMockFile(file2);
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auto expected_results = mock::MakeMockFile();
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SetLastSequence(4U);
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auto files = cfd_->current()->storage_info()->LevelFiles(0);
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RunCompaction({files}, expected_results);
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}
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TEST_F(CompactionJobTest, SimpleOverwrite) {
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NewDB();
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auto file1 = mock::MakeMockFile({
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{KeyStr("a", 3U, kTypeValue), "val2"},
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{KeyStr("b", 4U, kTypeValue), "val3"},
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});
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AddMockFile(file1);
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auto file2 = mock::MakeMockFile({{KeyStr("a", 1U, kTypeValue), "val"},
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{KeyStr("b", 2U, kTypeValue), "val"}});
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AddMockFile(file2);
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auto expected_results =
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mock::MakeMockFile({{KeyStr("a", 0U, kTypeValue), "val2"},
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{KeyStr("b", 4U, kTypeValue), "val3"}});
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SetLastSequence(4U);
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auto files = cfd_->current()->storage_info()->LevelFiles(0);
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RunCompaction({files}, expected_results);
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}
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TEST_F(CompactionJobTest, SimpleNonLastLevel) {
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NewDB();
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auto file1 = mock::MakeMockFile({
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{KeyStr("a", 5U, kTypeValue), "val2"},
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{KeyStr("b", 6U, kTypeValue), "val3"},
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});
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AddMockFile(file1);
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auto file2 = mock::MakeMockFile({{KeyStr("a", 3U, kTypeValue), "val"},
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{KeyStr("b", 4U, kTypeValue), "val"}});
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AddMockFile(file2, 1);
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auto file3 = mock::MakeMockFile({{KeyStr("a", 1U, kTypeValue), "val"},
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{KeyStr("b", 2U, kTypeValue), "val"}});
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AddMockFile(file3, 2);
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// Because level 1 is not the last level, the sequence numbers of a and b
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// cannot be set to 0
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auto expected_results =
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mock::MakeMockFile({{KeyStr("a", 5U, kTypeValue), "val2"},
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{KeyStr("b", 6U, kTypeValue), "val3"}});
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SetLastSequence(6U);
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auto lvl0_files = cfd_->current()->storage_info()->LevelFiles(0);
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auto lvl1_files = cfd_->current()->storage_info()->LevelFiles(1);
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RunCompaction({lvl0_files, lvl1_files}, expected_results);
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}
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TEST_F(CompactionJobTest, SimpleMerge) {
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merge_op_ = MergeOperators::CreateStringAppendOperator();
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NewDB();
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auto file1 = mock::MakeMockFile({
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{KeyStr("a", 5U, kTypeMerge), "5"},
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{KeyStr("a", 4U, kTypeMerge), "4"},
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{KeyStr("a", 3U, kTypeValue), "3"},
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});
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AddMockFile(file1);
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auto file2 = mock::MakeMockFile(
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{{KeyStr("b", 2U, kTypeMerge), "2"}, {KeyStr("b", 1U, kTypeValue), "1"}});
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AddMockFile(file2);
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auto expected_results =
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mock::MakeMockFile({{KeyStr("a", 0U, kTypeValue), "3,4,5"},
|
|
{KeyStr("b", 2U, kTypeValue), "1,2"}});
|
|
|
|
SetLastSequence(5U);
|
|
auto files = cfd_->current()->storage_info()->LevelFiles(0);
|
|
RunCompaction({files}, expected_results);
|
|
}
|
|
|
|
TEST_F(CompactionJobTest, NonAssocMerge) {
|
|
merge_op_ = MergeOperators::CreateStringAppendTESTOperator();
|
|
NewDB();
|
|
|
|
auto file1 = mock::MakeMockFile({
|
|
{KeyStr("a", 5U, kTypeMerge), "5"},
|
|
{KeyStr("a", 4U, kTypeMerge), "4"},
|
|
{KeyStr("a", 3U, kTypeMerge), "3"},
|
|
});
|
|
AddMockFile(file1);
|
|
|
|
auto file2 = mock::MakeMockFile(
|
|
{{KeyStr("b", 2U, kTypeMerge), "2"}, {KeyStr("b", 1U, kTypeMerge), "1"}});
|
|
AddMockFile(file2);
|
|
|
|
auto expected_results =
|
|
mock::MakeMockFile({{KeyStr("a", 0U, kTypeValue), "3,4,5"},
|
|
{KeyStr("b", 2U, kTypeMerge), "2"},
|
|
{KeyStr("b", 1U, kTypeMerge), "1"}});
|
|
|
|
SetLastSequence(5U);
|
|
auto files = cfd_->current()->storage_info()->LevelFiles(0);
|
|
RunCompaction({files}, expected_results);
|
|
}
|
|
|
|
// Filters merge operands with value 10.
|
|
TEST_F(CompactionJobTest, MergeOperandFilter) {
|
|
merge_op_ = MergeOperators::CreateUInt64AddOperator();
|
|
compaction_filter_.reset(new test::FilterNumber(10U));
|
|
NewDB();
|
|
|
|
auto file1 = mock::MakeMockFile(
|
|
{{KeyStr("a", 5U, kTypeMerge), test::EncodeInt(5U)},
|
|
{KeyStr("a", 4U, kTypeMerge), test::EncodeInt(10U)}, // Filtered
|
|
{KeyStr("a", 3U, kTypeMerge), test::EncodeInt(3U)}});
|
|
AddMockFile(file1);
|
|
|
|
auto file2 = mock::MakeMockFile({
|
|
{KeyStr("b", 2U, kTypeMerge), test::EncodeInt(2U)},
|
|
{KeyStr("b", 1U, kTypeMerge), test::EncodeInt(10U)} // Filtered
|
|
});
|
|
AddMockFile(file2);
|
|
|
|
auto expected_results =
|
|
mock::MakeMockFile({{KeyStr("a", 0U, kTypeValue), test::EncodeInt(8U)},
|
|
{KeyStr("b", 2U, kTypeMerge), test::EncodeInt(2U)}});
|
|
|
|
SetLastSequence(5U);
|
|
auto files = cfd_->current()->storage_info()->LevelFiles(0);
|
|
RunCompaction({files}, expected_results);
|
|
}
|
|
|
|
TEST_F(CompactionJobTest, FilterSomeMergeOperands) {
|
|
merge_op_ = MergeOperators::CreateUInt64AddOperator();
|
|
compaction_filter_.reset(new test::FilterNumber(10U));
|
|
NewDB();
|
|
|
|
auto file1 = mock::MakeMockFile(
|
|
{{KeyStr("a", 5U, kTypeMerge), test::EncodeInt(5U)},
|
|
{KeyStr("a", 4U, kTypeMerge), test::EncodeInt(10U)}, // Filtered
|
|
{KeyStr("a", 3U, kTypeValue), test::EncodeInt(5U)},
|
|
{KeyStr("d", 8U, kTypeMerge), test::EncodeInt(10U)}});
|
|
AddMockFile(file1);
|
|
|
|
auto file2 =
|
|
mock::MakeMockFile({{KeyStr("b", 2U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("b", 1U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("c", 2U, kTypeMerge), test::EncodeInt(3U)},
|
|
{KeyStr("c", 1U, kTypeValue), test::EncodeInt(7U)},
|
|
{KeyStr("d", 1U, kTypeValue), test::EncodeInt(6U)}});
|
|
AddMockFile(file2);
|
|
|
|
auto file3 =
|
|
mock::MakeMockFile({{KeyStr("a", 1U, kTypeMerge), test::EncodeInt(3U)}});
|
|
AddMockFile(file3, 2);
|
|
|
|
auto expected_results = mock::MakeMockFile({
|
|
{KeyStr("a", 5U, kTypeValue), test::EncodeInt(10U)},
|
|
{KeyStr("c", 2U, kTypeValue), test::EncodeInt(10U)},
|
|
{KeyStr("d", 1U, kTypeValue), test::EncodeInt(6U)}
|
|
// b does not appear because the operands are filtered
|
|
});
|
|
|
|
SetLastSequence(5U);
|
|
auto files = cfd_->current()->storage_info()->LevelFiles(0);
|
|
RunCompaction({files}, expected_results);
|
|
}
|
|
|
|
// Test where all operands/merge results are filtered out.
|
|
TEST_F(CompactionJobTest, FilterAllMergeOperands) {
|
|
merge_op_ = MergeOperators::CreateUInt64AddOperator();
|
|
compaction_filter_.reset(new test::FilterNumber(10U));
|
|
NewDB();
|
|
|
|
auto file1 =
|
|
mock::MakeMockFile({{KeyStr("a", 11U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("a", 10U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("a", 9U, kTypeMerge), test::EncodeInt(10U)}});
|
|
AddMockFile(file1);
|
|
|
|
auto file2 =
|
|
mock::MakeMockFile({{KeyStr("b", 8U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("b", 7U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("b", 6U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("b", 5U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("b", 4U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("b", 3U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("b", 2U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("c", 2U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("c", 1U, kTypeMerge), test::EncodeInt(10U)}});
|
|
AddMockFile(file2);
|
|
|
|
auto file3 =
|
|
mock::MakeMockFile({{KeyStr("a", 2U, kTypeMerge), test::EncodeInt(10U)},
|
|
{KeyStr("b", 1U, kTypeMerge), test::EncodeInt(10U)}});
|
|
AddMockFile(file3, 2);
|
|
|
|
SetLastSequence(11U);
|
|
auto files = cfd_->current()->storage_info()->LevelFiles(0);
|
|
|
|
stl_wrappers::KVMap empty_map;
|
|
RunCompaction({files}, empty_map);
|
|
}
|
|
|
|
TEST_F(CompactionJobTest, SimpleSingleDelete) {
|
|
NewDB();
|
|
|
|
auto file1 = mock::MakeMockFile({
|
|
{KeyStr("a", 5U, kTypeDeletion), ""},
|
|
{KeyStr("b", 6U, kTypeSingleDeletion), ""},
|
|
});
|
|
AddMockFile(file1);
|
|
|
|
auto file2 = mock::MakeMockFile({{KeyStr("a", 3U, kTypeValue), "val"},
|
|
{KeyStr("b", 4U, kTypeValue), "val"}});
|
|
AddMockFile(file2);
|
|
|
|
auto file3 = mock::MakeMockFile({
|
|
{KeyStr("a", 1U, kTypeValue), "val"},
|
|
});
|
|
AddMockFile(file3, 2);
|
|
|
|
auto expected_results =
|
|
mock::MakeMockFile({{KeyStr("a", 5U, kTypeDeletion), ""}});
|
|
|
|
SetLastSequence(6U);
|
|
auto files = cfd_->current()->storage_info()->LevelFiles(0);
|
|
RunCompaction({files}, expected_results);
|
|
}
|
|
|
|
TEST_F(CompactionJobTest, SingleDeleteSnapshots) {
|
|
NewDB();
|
|
|
|
auto file1 = mock::MakeMockFile({
|
|
{KeyStr("A", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("a", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("b", 21U, kTypeSingleDeletion), ""},
|
|
{KeyStr("c", 22U, kTypeSingleDeletion), ""},
|
|
{KeyStr("d", 9U, kTypeSingleDeletion), ""},
|
|
{KeyStr("f", 21U, kTypeSingleDeletion), ""},
|
|
{KeyStr("j", 11U, kTypeSingleDeletion), ""},
|
|
{KeyStr("j", 9U, kTypeSingleDeletion), ""},
|
|
{KeyStr("k", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("k", 11U, kTypeSingleDeletion), ""},
|
|
{KeyStr("l", 3U, kTypeSingleDeletion), ""},
|
|
{KeyStr("l", 2U, kTypeSingleDeletion), ""},
|
|
});
|
|
AddMockFile(file1);
|
|
|
|
auto file2 = mock::MakeMockFile({
|
|
{KeyStr("0", 2U, kTypeSingleDeletion), ""},
|
|
{KeyStr("a", 11U, kTypeValue), "val1"},
|
|
{KeyStr("b", 11U, kTypeValue), "val2"},
|
|
{KeyStr("c", 21U, kTypeValue), "val3"},
|
|
{KeyStr("d", 8U, kTypeValue), "val4"},
|
|
{KeyStr("e", 2U, kTypeSingleDeletion), ""},
|
|
{KeyStr("f", 1U, kTypeValue), "val1"},
|
|
{KeyStr("g", 11U, kTypeSingleDeletion), ""},
|
|
{KeyStr("h", 2U, kTypeSingleDeletion), ""},
|
|
{KeyStr("m", 12U, kTypeValue), "val1"},
|
|
{KeyStr("m", 11U, kTypeSingleDeletion), ""},
|
|
{KeyStr("m", 8U, kTypeValue), "val2"},
|
|
});
|
|
AddMockFile(file2);
|
|
|
|
auto file3 = mock::MakeMockFile({
|
|
{KeyStr("A", 1U, kTypeValue), "val"},
|
|
{KeyStr("e", 1U, kTypeValue), "val"},
|
|
});
|
|
AddMockFile(file3, 2);
|
|
|
|
auto expected_results = mock::MakeMockFile({
|
|
{KeyStr("A", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("a", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("a", 11U, kTypeValue), ""},
|
|
{KeyStr("b", 21U, kTypeSingleDeletion), ""},
|
|
{KeyStr("b", 11U, kTypeValue), "val2"},
|
|
{KeyStr("c", 22U, kTypeSingleDeletion), ""},
|
|
{KeyStr("c", 21U, kTypeValue), ""},
|
|
{KeyStr("e", 2U, kTypeSingleDeletion), ""},
|
|
{KeyStr("f", 21U, kTypeSingleDeletion), ""},
|
|
{KeyStr("f", 1U, kTypeValue), "val1"},
|
|
{KeyStr("g", 11U, kTypeSingleDeletion), ""},
|
|
{KeyStr("j", 11U, kTypeSingleDeletion), ""},
|
|
{KeyStr("k", 11U, kTypeSingleDeletion), ""},
|
|
{KeyStr("m", 12U, kTypeValue), "val1"},
|
|
{KeyStr("m", 11U, kTypeSingleDeletion), ""},
|
|
{KeyStr("m", 8U, kTypeValue), "val2"},
|
|
});
|
|
|
|
SetLastSequence(22U);
|
|
auto files = cfd_->current()->storage_info()->LevelFiles(0);
|
|
RunCompaction({files}, expected_results, {10U, 20U}, 10U);
|
|
}
|
|
|
|
TEST_F(CompactionJobTest, EarliestWriteConflictSnapshot) {
|
|
NewDB();
|
|
|
|
// Test multiple snapshots where the earliest snapshot is not a
|
|
// write-conflic-snapshot.
|
|
|
|
auto file1 = mock::MakeMockFile({
|
|
{KeyStr("A", 24U, kTypeSingleDeletion), ""},
|
|
{KeyStr("A", 23U, kTypeValue), "val"},
|
|
{KeyStr("B", 24U, kTypeSingleDeletion), ""},
|
|
{KeyStr("B", 23U, kTypeValue), "val"},
|
|
{KeyStr("D", 24U, kTypeSingleDeletion), ""},
|
|
{KeyStr("G", 32U, kTypeSingleDeletion), ""},
|
|
{KeyStr("G", 31U, kTypeValue), "val"},
|
|
{KeyStr("G", 24U, kTypeSingleDeletion), ""},
|
|
{KeyStr("G", 23U, kTypeValue), "val2"},
|
|
{KeyStr("H", 31U, kTypeValue), "val"},
|
|
{KeyStr("H", 24U, kTypeSingleDeletion), ""},
|
|
{KeyStr("H", 23U, kTypeValue), "val"},
|
|
{KeyStr("I", 35U, kTypeSingleDeletion), ""},
|
|
{KeyStr("I", 34U, kTypeValue), "val2"},
|
|
{KeyStr("I", 33U, kTypeSingleDeletion), ""},
|
|
{KeyStr("I", 32U, kTypeValue), "val3"},
|
|
{KeyStr("I", 31U, kTypeSingleDeletion), ""},
|
|
{KeyStr("J", 34U, kTypeValue), "val"},
|
|
{KeyStr("J", 33U, kTypeSingleDeletion), ""},
|
|
{KeyStr("J", 25U, kTypeValue), "val2"},
|
|
{KeyStr("J", 24U, kTypeSingleDeletion), ""},
|
|
});
|
|
AddMockFile(file1);
|
|
|
|
auto file2 = mock::MakeMockFile({
|
|
{KeyStr("A", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("A", 13U, kTypeValue), "val2"},
|
|
{KeyStr("C", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("C", 13U, kTypeValue), "val"},
|
|
{KeyStr("E", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("F", 4U, kTypeSingleDeletion), ""},
|
|
{KeyStr("F", 3U, kTypeValue), "val"},
|
|
{KeyStr("G", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("G", 13U, kTypeValue), "val3"},
|
|
{KeyStr("H", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("H", 13U, kTypeValue), "val2"},
|
|
{KeyStr("I", 13U, kTypeValue), "val4"},
|
|
{KeyStr("I", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("I", 11U, kTypeValue), "val5"},
|
|
{KeyStr("J", 15U, kTypeValue), "val3"},
|
|
{KeyStr("J", 14U, kTypeSingleDeletion), ""},
|
|
});
|
|
AddMockFile(file2);
|
|
|
|
auto expected_results = mock::MakeMockFile({
|
|
{KeyStr("A", 24U, kTypeSingleDeletion), ""},
|
|
{KeyStr("A", 23U, kTypeValue), ""},
|
|
{KeyStr("B", 24U, kTypeSingleDeletion), ""},
|
|
{KeyStr("B", 23U, kTypeValue), ""},
|
|
{KeyStr("D", 24U, kTypeSingleDeletion), ""},
|
|
{KeyStr("E", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("G", 32U, kTypeSingleDeletion), ""},
|
|
{KeyStr("G", 31U, kTypeValue), ""},
|
|
{KeyStr("H", 31U, kTypeValue), "val"},
|
|
{KeyStr("I", 35U, kTypeSingleDeletion), ""},
|
|
{KeyStr("I", 34U, kTypeValue), ""},
|
|
{KeyStr("I", 31U, kTypeSingleDeletion), ""},
|
|
{KeyStr("I", 13U, kTypeValue), "val4"},
|
|
{KeyStr("J", 34U, kTypeValue), "val"},
|
|
{KeyStr("J", 33U, kTypeSingleDeletion), ""},
|
|
{KeyStr("J", 25U, kTypeValue), "val2"},
|
|
{KeyStr("J", 24U, kTypeSingleDeletion), ""},
|
|
{KeyStr("J", 15U, kTypeValue), "val3"},
|
|
{KeyStr("J", 14U, kTypeSingleDeletion), ""},
|
|
});
|
|
|
|
SetLastSequence(24U);
|
|
auto files = cfd_->current()->storage_info()->LevelFiles(0);
|
|
RunCompaction({files}, expected_results, {10U, 20U, 30U}, 20U);
|
|
}
|
|
|
|
TEST_F(CompactionJobTest, SingleDeleteZeroSeq) {
|
|
NewDB();
|
|
|
|
auto file1 = mock::MakeMockFile({
|
|
{KeyStr("A", 10U, kTypeSingleDeletion), ""},
|
|
{KeyStr("dummy", 5U, kTypeValue), "val2"},
|
|
});
|
|
AddMockFile(file1);
|
|
|
|
auto file2 = mock::MakeMockFile({
|
|
{KeyStr("A", 0U, kTypeValue), "val"},
|
|
});
|
|
AddMockFile(file2);
|
|
|
|
auto expected_results = mock::MakeMockFile({
|
|
{KeyStr("dummy", 5U, kTypeValue), "val2"},
|
|
});
|
|
|
|
SetLastSequence(22U);
|
|
auto files = cfd_->current()->storage_info()->LevelFiles(0);
|
|
RunCompaction({files}, expected_results, {});
|
|
}
|
|
|
|
TEST_F(CompactionJobTest, MultiSingleDelete) {
|
|
// Tests three scenarios involving multiple single delete/put pairs:
|
|
//
|
|
// A: Put Snapshot SDel Put SDel -> Put Snapshot SDel
|
|
// B: Snapshot Put SDel Put SDel Snapshot -> Snapshot SDel Snapshot
|
|
// C: SDel Put SDel Snapshot Put -> Snapshot Put
|
|
// D: (Put) SDel Snapshot Put SDel -> (Put) SDel Snapshot SDel
|
|
// E: Put SDel Snapshot Put SDel -> Snapshot SDel
|
|
// F: Put SDel Put Sdel Snapshot -> removed
|
|
// G: Snapshot SDel Put SDel Put -> Snapshot Put SDel
|
|
// H: (Put) Put SDel Put Sdel Snapshot -> Removed
|
|
// I: (Put) Snapshot Put SDel Put SDel -> SDel
|
|
// J: Put Put SDel Put SDel SDel Snapshot Put Put SDel SDel Put
|
|
// -> Snapshot Put
|
|
// K: SDel SDel Put SDel Put Put Snapshot SDel Put SDel SDel Put SDel
|
|
// -> Snapshot Put Snapshot SDel
|
|
// L: SDel Put Del Put SDel Snapshot Del Put Del SDel Put SDel
|
|
// -> Snapshot SDel
|
|
// M: (Put) SDel Put Del Put SDel Snapshot Put Del SDel Put SDel Del
|
|
// -> SDel Snapshot Del
|
|
NewDB();
|
|
|
|
auto file1 = mock::MakeMockFile({
|
|
{KeyStr("A", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("A", 13U, kTypeValue), "val5"},
|
|
{KeyStr("A", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("B", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("B", 13U, kTypeValue), "val2"},
|
|
{KeyStr("C", 14U, kTypeValue), "val3"},
|
|
{KeyStr("D", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("D", 11U, kTypeValue), "val4"},
|
|
{KeyStr("G", 15U, kTypeValue), "val"},
|
|
{KeyStr("G", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("G", 13U, kTypeValue), "val"},
|
|
{KeyStr("I", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("I", 13U, kTypeValue), "val"},
|
|
{KeyStr("J", 15U, kTypeValue), "val"},
|
|
{KeyStr("J", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("J", 13U, kTypeSingleDeletion), ""},
|
|
{KeyStr("J", 12U, kTypeValue), "val"},
|
|
{KeyStr("J", 11U, kTypeValue), "val"},
|
|
{KeyStr("K", 16U, kTypeSingleDeletion), ""},
|
|
{KeyStr("K", 15U, kTypeValue), "val1"},
|
|
{KeyStr("K", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("K", 13U, kTypeSingleDeletion), ""},
|
|
{KeyStr("K", 12U, kTypeValue), "val2"},
|
|
{KeyStr("K", 11U, kTypeSingleDeletion), ""},
|
|
{KeyStr("L", 16U, kTypeSingleDeletion), ""},
|
|
{KeyStr("L", 15U, kTypeValue), "val"},
|
|
{KeyStr("L", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("L", 13U, kTypeDeletion), ""},
|
|
{KeyStr("L", 12U, kTypeValue), "val"},
|
|
{KeyStr("L", 11U, kTypeDeletion), ""},
|
|
{KeyStr("M", 16U, kTypeDeletion), ""},
|
|
{KeyStr("M", 15U, kTypeSingleDeletion), ""},
|
|
{KeyStr("M", 14U, kTypeValue), "val"},
|
|
{KeyStr("M", 13U, kTypeSingleDeletion), ""},
|
|
{KeyStr("M", 12U, kTypeDeletion), ""},
|
|
{KeyStr("M", 11U, kTypeValue), "val"},
|
|
});
|
|
AddMockFile(file1);
|
|
|
|
auto file2 = mock::MakeMockFile({
|
|
{KeyStr("A", 10U, kTypeValue), "val"},
|
|
{KeyStr("B", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("B", 11U, kTypeValue), "val2"},
|
|
{KeyStr("C", 10U, kTypeSingleDeletion), ""},
|
|
{KeyStr("C", 9U, kTypeValue), "val6"},
|
|
{KeyStr("C", 8U, kTypeSingleDeletion), ""},
|
|
{KeyStr("D", 10U, kTypeSingleDeletion), ""},
|
|
{KeyStr("E", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("E", 11U, kTypeValue), "val"},
|
|
{KeyStr("E", 5U, kTypeSingleDeletion), ""},
|
|
{KeyStr("E", 4U, kTypeValue), "val"},
|
|
{KeyStr("F", 6U, kTypeSingleDeletion), ""},
|
|
{KeyStr("F", 5U, kTypeValue), "val"},
|
|
{KeyStr("F", 4U, kTypeSingleDeletion), ""},
|
|
{KeyStr("F", 3U, kTypeValue), "val"},
|
|
{KeyStr("G", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("H", 6U, kTypeSingleDeletion), ""},
|
|
{KeyStr("H", 5U, kTypeValue), "val"},
|
|
{KeyStr("H", 4U, kTypeSingleDeletion), ""},
|
|
{KeyStr("H", 3U, kTypeValue), "val"},
|
|
{KeyStr("I", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("I", 11U, kTypeValue), "val"},
|
|
{KeyStr("J", 6U, kTypeSingleDeletion), ""},
|
|
{KeyStr("J", 5U, kTypeSingleDeletion), ""},
|
|
{KeyStr("J", 4U, kTypeValue), "val"},
|
|
{KeyStr("J", 3U, kTypeSingleDeletion), ""},
|
|
{KeyStr("J", 2U, kTypeValue), "val"},
|
|
{KeyStr("K", 8U, kTypeValue), "val3"},
|
|
{KeyStr("K", 7U, kTypeValue), "val4"},
|
|
{KeyStr("K", 6U, kTypeSingleDeletion), ""},
|
|
{KeyStr("K", 5U, kTypeValue), "val5"},
|
|
{KeyStr("K", 2U, kTypeSingleDeletion), ""},
|
|
{KeyStr("K", 1U, kTypeSingleDeletion), ""},
|
|
{KeyStr("L", 5U, kTypeSingleDeletion), ""},
|
|
{KeyStr("L", 4U, kTypeValue), "val"},
|
|
{KeyStr("L", 3U, kTypeDeletion), ""},
|
|
{KeyStr("L", 2U, kTypeValue), "val"},
|
|
{KeyStr("L", 1U, kTypeSingleDeletion), ""},
|
|
{KeyStr("M", 10U, kTypeSingleDeletion), ""},
|
|
{KeyStr("M", 7U, kTypeValue), "val"},
|
|
{KeyStr("M", 5U, kTypeDeletion), ""},
|
|
{KeyStr("M", 4U, kTypeValue), "val"},
|
|
{KeyStr("M", 3U, kTypeSingleDeletion), ""},
|
|
});
|
|
AddMockFile(file2);
|
|
|
|
auto file3 = mock::MakeMockFile({
|
|
{KeyStr("D", 1U, kTypeValue), "val"},
|
|
{KeyStr("H", 1U, kTypeValue), "val"},
|
|
{KeyStr("I", 2U, kTypeValue), "val"},
|
|
});
|
|
AddMockFile(file3, 2);
|
|
|
|
auto file4 = mock::MakeMockFile({
|
|
{KeyStr("M", 1U, kTypeValue), "val"},
|
|
});
|
|
AddMockFile(file4, 2);
|
|
|
|
auto expected_results =
|
|
mock::MakeMockFile({{KeyStr("A", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("A", 13U, kTypeValue), ""},
|
|
{KeyStr("A", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("A", 10U, kTypeValue), "val"},
|
|
{KeyStr("B", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("B", 13U, kTypeValue), ""},
|
|
{KeyStr("C", 14U, kTypeValue), "val3"},
|
|
{KeyStr("D", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("D", 11U, kTypeValue), ""},
|
|
{KeyStr("D", 10U, kTypeSingleDeletion), ""},
|
|
{KeyStr("E", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("E", 11U, kTypeValue), ""},
|
|
{KeyStr("G", 15U, kTypeValue), "val"},
|
|
{KeyStr("G", 12U, kTypeSingleDeletion), ""},
|
|
{KeyStr("I", 14U, kTypeSingleDeletion), ""},
|
|
{KeyStr("I", 13U, kTypeValue), ""},
|
|
{KeyStr("J", 15U, kTypeValue), "val"},
|
|
{KeyStr("K", 16U, kTypeSingleDeletion), ""},
|
|
{KeyStr("K", 15U, kTypeValue), ""},
|
|
{KeyStr("K", 11U, kTypeSingleDeletion), ""},
|
|
{KeyStr("K", 8U, kTypeValue), "val3"},
|
|
{KeyStr("L", 16U, kTypeSingleDeletion), ""},
|
|
{KeyStr("L", 15U, kTypeValue), ""},
|
|
{KeyStr("M", 16U, kTypeDeletion), ""},
|
|
{KeyStr("M", 3U, kTypeSingleDeletion), ""}});
|
|
|
|
SetLastSequence(22U);
|
|
auto files = cfd_->current()->storage_info()->LevelFiles(0);
|
|
RunCompaction({files}, expected_results, {10U}, 10U);
|
|
}
|
|
|
|
// This test documents the behavior where a corrupt key follows a deletion or a
|
|
// single deletion and the (single) deletion gets removed while the corrupt key
|
|
// gets written out. TODO(noetzli): We probably want a better way to treat
|
|
// corrupt keys.
|
|
TEST_F(CompactionJobTest, CorruptionAfterDeletion) {
|
|
NewDB();
|
|
|
|
auto file1 =
|
|
mock::MakeMockFile({{test::KeyStr("A", 6U, kTypeValue), "val3"},
|
|
{test::KeyStr("a", 5U, kTypeDeletion), ""},
|
|
{test::KeyStr("a", 4U, kTypeValue, true), "val"}});
|
|
AddMockFile(file1);
|
|
|
|
auto file2 =
|
|
mock::MakeMockFile({{test::KeyStr("b", 3U, kTypeSingleDeletion), ""},
|
|
{test::KeyStr("b", 2U, kTypeValue, true), "val"},
|
|
{test::KeyStr("c", 1U, kTypeValue), "val2"}});
|
|
AddMockFile(file2);
|
|
|
|
auto expected_results =
|
|
mock::MakeMockFile({{test::KeyStr("A", 0U, kTypeValue), "val3"},
|
|
{test::KeyStr("a", 0U, kTypeValue, true), "val"},
|
|
{test::KeyStr("b", 0U, kTypeValue, true), "val"},
|
|
{test::KeyStr("c", 1U, kTypeValue), "val2"}});
|
|
|
|
SetLastSequence(6U);
|
|
auto files = cfd_->current()->storage_info()->LevelFiles(0);
|
|
RunCompaction({files}, expected_results);
|
|
}
|
|
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|
|
|
|
#else
|
|
#include <stdio.h>
|
|
|
|
int main(int /*argc*/, char** /*argv*/) {
|
|
fprintf(stderr,
|
|
"SKIPPED as CompactionJobStats is not supported in ROCKSDB_LITE\n");
|
|
return 0;
|
|
}
|
|
|
|
#endif // ROCKSDB_LITE
|