8d007b4aaf
Summary: (1) Fix SanitizeOptions() to also check HashLinkList. The current dynamic case just happens to work because the 2 classes have the same layout. (2) Do not delete SliceTransform object in HashSkipListFactory and HashLinkListFactory destructor. Reason: SanitizeOptions() enforces prefix_extractor and SliceTransform to be the same object when Hash**Factory is used. This makes the behavior strange: when Hash**Factory is used, prefix_extractor will be released by RocksDB. If other memtable factory is used, prefix_extractor should be released by user. Test Plan: db_bench && make asan_check Reviewers: haobo, igor, sdong Reviewed By: igor CC: leveldb, dhruba Differential Revision: https://reviews.facebook.net/D16587
1543 lines
50 KiB
C++
1543 lines
50 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same 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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// The test uses an array to compare against values written to the database.
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// Keys written to the array are in 1:1 correspondence to the actual values in
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// the database according to the formula in the function GenerateValue.
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// Space is reserved in the array from 0 to FLAGS_max_key and values are
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// randomly written/deleted/read from those positions. During verification we
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// compare all the positions in the array. To shorten/elongate the running
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// time, you could change the settings: FLAGS_max_key, FLAGS_ops_per_thread,
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// (sometimes also FLAGS_threads).
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//
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// NOTE that if FLAGS_test_batches_snapshots is set, the test will have
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// different behavior. See comment of the flag for details.
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <gflags/gflags.h>
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#include "db/db_impl.h"
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#include "db/version_set.h"
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#include "rocksdb/statistics.h"
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#include "rocksdb/cache.h"
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#include "utilities/utility_db.h"
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#include "rocksdb/env.h"
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#include "rocksdb/write_batch.h"
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#include "rocksdb/slice.h"
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#include "rocksdb/slice_transform.h"
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#include "rocksdb/statistics.h"
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#include "port/port.h"
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#include "util/coding.h"
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#include "util/crc32c.h"
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#include "util/histogram.h"
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#include "util/mutexlock.h"
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#include "util/random.h"
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#include "util/testutil.h"
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#include "util/logging.h"
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#include "utilities/ttl/db_ttl.h"
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#include "hdfs/env_hdfs.h"
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#include "utilities/merge_operators.h"
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static const long KB = 1024;
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static bool ValidateUint32Range(const char* flagname, uint64_t value) {
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if (value > std::numeric_limits<uint32_t>::max()) {
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fprintf(stderr,
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"Invalid value for --%s: %lu, overflow\n",
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flagname,
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(unsigned long)value);
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return false;
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}
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return true;
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}
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DEFINE_uint64(seed, 2341234, "Seed for PRNG");
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static const bool FLAGS_seed_dummy =
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google::RegisterFlagValidator(&FLAGS_seed, &ValidateUint32Range);
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DEFINE_int64(max_key, 1 * KB * KB * KB,
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"Max number of key/values to place in database");
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DEFINE_bool(test_batches_snapshots, false,
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"If set, the test uses MultiGet(), MultiPut() and MultiDelete()"
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" which read/write/delete multiple keys in a batch. In this mode,"
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" we do not verify db content by comparing the content with the "
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"pre-allocated array. Instead, we do partial verification inside"
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" MultiGet() by checking various values in a batch. Benefit of"
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" this mode:\n"
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"\t(a) No need to acquire mutexes during writes (less cache "
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"flushes in multi-core leading to speed up)\n"
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"\t(b) No long validation at the end (more speed up)\n"
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"\t(c) Test snapshot and atomicity of batch writes");
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DEFINE_int32(threads, 32, "Number of concurrent threads to run.");
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DEFINE_int32(ttl, -1,
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"Opens the db with this ttl value if this is not -1. "
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"Carefully specify a large value such that verifications on "
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"deleted values don't fail");
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DEFINE_int32(value_size_mult, 8,
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"Size of value will be this number times rand_int(1,3) bytes");
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DEFINE_bool(verify_before_write, false, "Verify before write");
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DEFINE_bool(histogram, false, "Print histogram of operation timings");
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DEFINE_bool(destroy_db_initially, true,
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"Destroys the database dir before start if this is true");
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DEFINE_bool (verbose, false, "Verbose");
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DEFINE_int32(write_buffer_size, rocksdb::Options().write_buffer_size,
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"Number of bytes to buffer in memtable before compacting");
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DEFINE_int32(max_write_buffer_number,
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rocksdb::Options().max_write_buffer_number,
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"The number of in-memory memtables. "
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"Each memtable is of size FLAGS_write_buffer_size.");
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DEFINE_int32(min_write_buffer_number_to_merge,
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rocksdb::Options().min_write_buffer_number_to_merge,
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"The minimum number of write buffers that will be merged together "
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"before writing to storage. This is cheap because it is an "
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"in-memory merge. If this feature is not enabled, then all these "
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"write buffers are flushed to L0 as separate files and this "
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"increases read amplification because a get request has to check "
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"in all of these files. Also, an in-memory merge may result in "
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"writing less data to storage if there are duplicate records in"
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" each of these individual write buffers.");
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DEFINE_int32(open_files, rocksdb::Options().max_open_files,
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"Maximum number of files to keep open at the same time "
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"(use default if == 0)");
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DEFINE_int64(compressed_cache_size, -1,
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"Number of bytes to use as a cache of compressed data."
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" Negative means use default settings.");
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DEFINE_int32(compaction_style, rocksdb::Options().compaction_style, "");
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DEFINE_int32(level0_file_num_compaction_trigger,
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rocksdb::Options().level0_file_num_compaction_trigger,
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"Level0 compaction start trigger");
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DEFINE_int32(level0_slowdown_writes_trigger,
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rocksdb::Options().level0_slowdown_writes_trigger,
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"Number of files in level-0 that will slow down writes");
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DEFINE_int32(level0_stop_writes_trigger,
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rocksdb::Options().level0_stop_writes_trigger,
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"Number of files in level-0 that will trigger put stop.");
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DEFINE_int32(block_size, rocksdb::Options().block_size,
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"Number of bytes in a block.");
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DEFINE_int32(max_background_compactions,
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rocksdb::Options().max_background_compactions,
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"The maximum number of concurrent background compactions "
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"that can occur in parallel.");
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DEFINE_int32(universal_size_ratio, 0, "The ratio of file sizes that trigger"
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" compaction in universal style");
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DEFINE_int32(universal_min_merge_width, 0, "The minimum number of files to "
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"compact in universal style compaction");
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DEFINE_int32(universal_max_merge_width, 0, "The max number of files to compact"
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" in universal style compaction");
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DEFINE_int32(universal_max_size_amplification_percent, 0,
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"The max size amplification for universal style compaction");
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DEFINE_int64(cache_size, 2 * KB * KB * KB,
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"Number of bytes to use as a cache of uncompressed data.");
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static bool ValidateInt32Positive(const char* flagname, int32_t value) {
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if (value < 0) {
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fprintf(stderr, "Invalid value for --%s: %d, must be >=0\n",
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flagname, value);
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return false;
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}
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return true;
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}
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DEFINE_int32(reopen, 10, "Number of times database reopens");
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static const bool FLAGS_reopen_dummy =
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google::RegisterFlagValidator(&FLAGS_reopen, &ValidateInt32Positive);
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DEFINE_int32(bloom_bits, 10, "Bloom filter bits per key. "
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"Negative means use default settings.");
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DEFINE_string(db, "", "Use the db with the following name.");
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DEFINE_bool(verify_checksum, false,
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"Verify checksum for every block read from storage");
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DEFINE_bool(mmap_read, rocksdb::EnvOptions().use_mmap_reads,
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"Allow reads to occur via mmap-ing files");
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// Database statistics
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static std::shared_ptr<rocksdb::Statistics> dbstats;
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DEFINE_bool(statistics, false, "Create database statistics");
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DEFINE_bool(sync, false, "Sync all writes to disk");
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DEFINE_bool(disable_data_sync, false,
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"If true, do not wait until data is synced to disk.");
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DEFINE_bool(use_fsync, false, "If true, issue fsync instead of fdatasync");
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DEFINE_int32(kill_random_test, 0,
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"If non-zero, kill at various points in source code with "
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"probability 1/this");
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static const bool FLAGS_kill_random_test_dummy =
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google::RegisterFlagValidator(&FLAGS_kill_random_test,
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&ValidateInt32Positive);
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extern int rocksdb_kill_odds;
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DEFINE_bool(disable_wal, false, "If true, do not write WAL for write.");
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DEFINE_int32(target_file_size_base, 64 * KB,
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"Target level-1 file size for compaction");
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DEFINE_int32(target_file_size_multiplier, 1,
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"A multiplier to compute targe level-N file size (N >= 2)");
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DEFINE_uint64(max_bytes_for_level_base, 256 * KB, "Max bytes for level-1");
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DEFINE_int32(max_bytes_for_level_multiplier, 2,
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"A multiplier to compute max bytes for level-N (N >= 2)");
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static bool ValidateInt32Percent(const char* flagname, int32_t value) {
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if (value < 0 || value>100) {
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fprintf(stderr, "Invalid value for --%s: %d, 0<= pct <=100 \n",
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flagname, value);
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return false;
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}
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return true;
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}
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DEFINE_int32(readpercent, 10,
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"Ratio of reads to total workload (expressed as a percentage)");
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static const bool FLAGS_readpercent_dummy =
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google::RegisterFlagValidator(&FLAGS_readpercent, &ValidateInt32Percent);
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DEFINE_int32(prefixpercent, 20,
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"Ratio of prefix iterators to total workload (expressed as a"
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" percentage)");
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static const bool FLAGS_prefixpercent_dummy =
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google::RegisterFlagValidator(&FLAGS_prefixpercent, &ValidateInt32Percent);
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DEFINE_int32(writepercent, 45,
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" Ratio of deletes to total workload (expressed as a percentage)");
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static const bool FLAGS_writepercent_dummy =
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google::RegisterFlagValidator(&FLAGS_writepercent, &ValidateInt32Percent);
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DEFINE_int32(delpercent, 15,
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"Ratio of deletes to total workload (expressed as a percentage)");
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static const bool FLAGS_delpercent_dummy =
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google::RegisterFlagValidator(&FLAGS_delpercent, &ValidateInt32Percent);
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DEFINE_int32(iterpercent, 10, "Ratio of iterations to total workload"
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" (expressed as a percentage)");
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static const bool FLAGS_iterpercent_dummy =
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google::RegisterFlagValidator(&FLAGS_iterpercent, &ValidateInt32Percent);
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DEFINE_uint64(num_iterations, 10, "Number of iterations per MultiIterate run");
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static const bool FLAGS_num_iterations_dummy =
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google::RegisterFlagValidator(&FLAGS_num_iterations, &ValidateUint32Range);
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DEFINE_bool(disable_seek_compaction, false,
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"Option to disable compation triggered by read.");
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DEFINE_uint64(delete_obsolete_files_period_micros, 0,
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"Option to delete obsolete files periodically"
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"0 means that obsolete files are "
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" deleted after every compaction run.");
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enum rocksdb::CompressionType StringToCompressionType(const char* ctype) {
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assert(ctype);
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if (!strcasecmp(ctype, "none"))
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return rocksdb::kNoCompression;
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else if (!strcasecmp(ctype, "snappy"))
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return rocksdb::kSnappyCompression;
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else if (!strcasecmp(ctype, "zlib"))
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return rocksdb::kZlibCompression;
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else if (!strcasecmp(ctype, "bzip2"))
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return rocksdb::kBZip2Compression;
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else if (!strcasecmp(ctype, "lz4"))
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return rocksdb::kLZ4Compression;
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else if (!strcasecmp(ctype, "lz4hc"))
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return rocksdb::kLZ4HCCompression;
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fprintf(stdout, "Cannot parse compression type '%s'\n", ctype);
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return rocksdb::kSnappyCompression; //default value
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}
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DEFINE_string(compression_type, "snappy",
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"Algorithm to use to compress the database");
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static enum rocksdb::CompressionType FLAGS_compression_type_e =
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rocksdb::kSnappyCompression;
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DEFINE_string(hdfs, "", "Name of hdfs environment");
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// posix or hdfs environment
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static rocksdb::Env* FLAGS_env = rocksdb::Env::Default();
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DEFINE_uint64(ops_per_thread, 600000, "Number of operations per thread.");
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static const bool FLAGS_ops_per_thread_dummy =
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google::RegisterFlagValidator(&FLAGS_ops_per_thread, &ValidateUint32Range);
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DEFINE_uint64(log2_keys_per_lock, 2, "Log2 of number of keys per lock");
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static const bool FLAGS_log2_keys_per_lock_dummy =
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google::RegisterFlagValidator(&FLAGS_log2_keys_per_lock,
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&ValidateUint32Range);
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DEFINE_int32(purge_redundant_percent, 50,
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"Percentage of times we want to purge redundant keys in memory "
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"before flushing");
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static const bool FLAGS_purge_redundant_percent_dummy =
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google::RegisterFlagValidator(&FLAGS_purge_redundant_percent,
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&ValidateInt32Percent);
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DEFINE_bool(filter_deletes, false, "On true, deletes use KeyMayExist to drop"
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" the delete if key not present");
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enum RepFactory {
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kSkipList,
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kHashSkipList,
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kVectorRep
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};
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enum RepFactory StringToRepFactory(const char* ctype) {
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assert(ctype);
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if (!strcasecmp(ctype, "skip_list"))
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return kSkipList;
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else if (!strcasecmp(ctype, "prefix_hash"))
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return kHashSkipList;
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else if (!strcasecmp(ctype, "vector"))
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return kVectorRep;
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fprintf(stdout, "Cannot parse memreptable %s\n", ctype);
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return kSkipList;
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}
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static enum RepFactory FLAGS_rep_factory;
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DEFINE_string(memtablerep, "skip_list", "");
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static bool ValidatePrefixSize(const char* flagname, int32_t value) {
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if (value < 0 || value>=2000000000) {
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fprintf(stderr, "Invalid value for --%s: %d. 0<= PrefixSize <=2000000000\n",
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flagname, value);
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return false;
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}
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return true;
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}
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DEFINE_int32(prefix_size, 0, "Control the prefix size for HashSkipListRep");
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static const bool FLAGS_prefix_size_dummy =
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google::RegisterFlagValidator(&FLAGS_prefix_size, &ValidatePrefixSize);
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DEFINE_bool(use_merge, false, "On true, replaces all writes with a Merge "
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"that behaves like a Put");
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namespace rocksdb {
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// convert long to a big-endian slice key
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static std::string Key(long val) {
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std::string little_endian_key;
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std::string big_endian_key;
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PutFixed64(&little_endian_key, val);
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assert(little_endian_key.size() == sizeof(val));
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big_endian_key.resize(sizeof(val));
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for (int i=0; i<(int)sizeof(val); i++) {
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big_endian_key[i] = little_endian_key[sizeof(val) - 1 - i];
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}
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return big_endian_key;
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}
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class StressTest;
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namespace {
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class Stats {
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private:
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double start_;
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double finish_;
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double seconds_;
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long done_;
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long gets_;
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long prefixes_;
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long writes_;
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long deletes_;
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long iterator_size_sums_;
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long founds_;
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long iterations_;
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long errors_;
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int next_report_;
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size_t bytes_;
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double last_op_finish_;
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HistogramImpl hist_;
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public:
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Stats() { }
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void Start() {
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next_report_ = 100;
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hist_.Clear();
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done_ = 0;
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gets_ = 0;
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prefixes_ = 0;
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writes_ = 0;
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deletes_ = 0;
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iterator_size_sums_ = 0;
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founds_ = 0;
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iterations_ = 0;
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errors_ = 0;
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bytes_ = 0;
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seconds_ = 0;
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start_ = FLAGS_env->NowMicros();
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last_op_finish_ = start_;
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finish_ = start_;
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}
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void Merge(const Stats& other) {
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hist_.Merge(other.hist_);
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done_ += other.done_;
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gets_ += other.gets_;
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prefixes_ += other.prefixes_;
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writes_ += other.writes_;
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deletes_ += other.deletes_;
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iterator_size_sums_ += other.iterator_size_sums_;
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founds_ += other.founds_;
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iterations_ += other.iterations_;
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errors_ += other.errors_;
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bytes_ += other.bytes_;
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seconds_ += other.seconds_;
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if (other.start_ < start_) start_ = other.start_;
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if (other.finish_ > finish_) finish_ = other.finish_;
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}
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void Stop() {
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finish_ = FLAGS_env->NowMicros();
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seconds_ = (finish_ - start_) * 1e-6;
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}
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void FinishedSingleOp() {
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if (FLAGS_histogram) {
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double now = FLAGS_env->NowMicros();
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double micros = now - last_op_finish_;
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hist_.Add(micros);
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if (micros > 20000) {
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fprintf(stdout, "long op: %.1f micros%30s\r", micros, "");
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}
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last_op_finish_ = now;
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}
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done_++;
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if (done_ >= next_report_) {
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if (next_report_ < 1000) next_report_ += 100;
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else if (next_report_ < 5000) next_report_ += 500;
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else if (next_report_ < 10000) next_report_ += 1000;
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else if (next_report_ < 50000) next_report_ += 5000;
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else if (next_report_ < 100000) next_report_ += 10000;
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else if (next_report_ < 500000) next_report_ += 50000;
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else next_report_ += 100000;
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fprintf(stdout, "... finished %ld ops%30s\r", done_, "");
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}
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}
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void AddBytesForWrites(int nwrites, size_t nbytes) {
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writes_ += nwrites;
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bytes_ += nbytes;
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}
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void AddGets(int ngets, int nfounds) {
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founds_ += nfounds;
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gets_ += ngets;
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}
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void AddPrefixes(int nprefixes, int count) {
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prefixes_ += nprefixes;
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iterator_size_sums_ += count;
|
|
}
|
|
|
|
void AddIterations(int n) {
|
|
iterations_ += n;
|
|
}
|
|
|
|
void AddDeletes(int n) {
|
|
deletes_ += n;
|
|
}
|
|
|
|
void AddErrors(int n) {
|
|
errors_ += n;
|
|
}
|
|
|
|
void Report(const char* name) {
|
|
std::string extra;
|
|
if (bytes_ < 1 || done_ < 1) {
|
|
fprintf(stderr, "No writes or ops?\n");
|
|
return;
|
|
}
|
|
|
|
double elapsed = (finish_ - start_) * 1e-6;
|
|
double bytes_mb = bytes_ / 1048576.0;
|
|
double rate = bytes_mb / elapsed;
|
|
double throughput = (double)done_/elapsed;
|
|
|
|
fprintf(stdout, "%-12s: ", name);
|
|
fprintf(stdout, "%.3f micros/op %ld ops/sec\n",
|
|
seconds_ * 1e6 / done_, (long)throughput);
|
|
fprintf(stdout, "%-12s: Wrote %.2f MB (%.2f MB/sec) (%ld%% of %ld ops)\n",
|
|
"", bytes_mb, rate, (100*writes_)/done_, done_);
|
|
fprintf(stdout, "%-12s: Wrote %ld times\n", "", writes_);
|
|
fprintf(stdout, "%-12s: Deleted %ld times\n", "", deletes_);
|
|
fprintf(stdout, "%-12s: %ld read and %ld found the key\n", "",
|
|
gets_, founds_);
|
|
fprintf(stdout, "%-12s: Prefix scanned %ld times\n", "", prefixes_);
|
|
fprintf(stdout, "%-12s: Iterator size sum is %ld\n", "",
|
|
iterator_size_sums_);
|
|
fprintf(stdout, "%-12s: Iterated %ld times\n", "", iterations_);
|
|
fprintf(stdout, "%-12s: Got errors %ld times\n", "", errors_);
|
|
|
|
if (FLAGS_histogram) {
|
|
fprintf(stdout, "Microseconds per op:\n%s\n", hist_.ToString().c_str());
|
|
}
|
|
fflush(stdout);
|
|
}
|
|
};
|
|
|
|
// State shared by all concurrent executions of the same benchmark.
|
|
class SharedState {
|
|
public:
|
|
static const uint32_t SENTINEL = 0xffffffff;
|
|
|
|
explicit SharedState(StressTest* stress_test) :
|
|
cv_(&mu_),
|
|
seed_(FLAGS_seed),
|
|
max_key_(FLAGS_max_key),
|
|
log2_keys_per_lock_(FLAGS_log2_keys_per_lock),
|
|
num_threads_(FLAGS_threads),
|
|
num_initialized_(0),
|
|
num_populated_(0),
|
|
vote_reopen_(0),
|
|
num_done_(0),
|
|
start_(false),
|
|
start_verify_(false),
|
|
stress_test_(stress_test) {
|
|
if (FLAGS_test_batches_snapshots) {
|
|
key_locks_ = nullptr;
|
|
values_ = nullptr;
|
|
fprintf(stdout, "No lock creation because test_batches_snapshots set\n");
|
|
return;
|
|
}
|
|
values_ = new uint32_t[max_key_];
|
|
for (long i = 0; i < max_key_; i++) {
|
|
values_[i] = SENTINEL;
|
|
}
|
|
|
|
long num_locks = (max_key_ >> log2_keys_per_lock_);
|
|
if (max_key_ & ((1 << log2_keys_per_lock_) - 1)) {
|
|
num_locks ++;
|
|
}
|
|
fprintf(stdout, "Creating %ld locks\n", num_locks);
|
|
key_locks_ = new port::Mutex[num_locks];
|
|
}
|
|
|
|
~SharedState() {
|
|
delete[] values_;
|
|
delete[] key_locks_;
|
|
}
|
|
|
|
port::Mutex* GetMutex() {
|
|
return &mu_;
|
|
}
|
|
|
|
port::CondVar* GetCondVar() {
|
|
return &cv_;
|
|
}
|
|
|
|
StressTest* GetStressTest() const {
|
|
return stress_test_;
|
|
}
|
|
|
|
long GetMaxKey() const {
|
|
return max_key_;
|
|
}
|
|
|
|
uint32_t GetNumThreads() const {
|
|
return num_threads_;
|
|
}
|
|
|
|
void IncInitialized() {
|
|
num_initialized_++;
|
|
}
|
|
|
|
void IncOperated() {
|
|
num_populated_++;
|
|
}
|
|
|
|
void IncDone() {
|
|
num_done_++;
|
|
}
|
|
|
|
void IncVotedReopen() {
|
|
vote_reopen_ = (vote_reopen_ + 1) % num_threads_;
|
|
}
|
|
|
|
bool AllInitialized() const {
|
|
return num_initialized_ >= num_threads_;
|
|
}
|
|
|
|
bool AllOperated() const {
|
|
return num_populated_ >= num_threads_;
|
|
}
|
|
|
|
bool AllDone() const {
|
|
return num_done_ >= num_threads_;
|
|
}
|
|
|
|
bool AllVotedReopen() {
|
|
return (vote_reopen_ == 0);
|
|
}
|
|
|
|
void SetStart() {
|
|
start_ = true;
|
|
}
|
|
|
|
void SetStartVerify() {
|
|
start_verify_ = true;
|
|
}
|
|
|
|
bool Started() const {
|
|
return start_;
|
|
}
|
|
|
|
bool VerifyStarted() const {
|
|
return start_verify_;
|
|
}
|
|
|
|
port::Mutex* GetMutexForKey(long key) {
|
|
return &key_locks_[key >> log2_keys_per_lock_];
|
|
}
|
|
|
|
void Put(long key, uint32_t value_base) {
|
|
values_[key] = value_base;
|
|
}
|
|
|
|
uint32_t Get(long key) const {
|
|
return values_[key];
|
|
}
|
|
|
|
void Delete(long key) const {
|
|
values_[key] = SENTINEL;
|
|
}
|
|
|
|
uint32_t GetSeed() const {
|
|
return seed_;
|
|
}
|
|
|
|
private:
|
|
port::Mutex mu_;
|
|
port::CondVar cv_;
|
|
const uint32_t seed_;
|
|
const long max_key_;
|
|
const uint32_t log2_keys_per_lock_;
|
|
const int num_threads_;
|
|
long num_initialized_;
|
|
long num_populated_;
|
|
long vote_reopen_;
|
|
long num_done_;
|
|
bool start_;
|
|
bool start_verify_;
|
|
StressTest* stress_test_;
|
|
|
|
uint32_t *values_;
|
|
port::Mutex *key_locks_;
|
|
|
|
};
|
|
|
|
// Per-thread state for concurrent executions of the same benchmark.
|
|
struct ThreadState {
|
|
uint32_t tid; // 0..n-1
|
|
Random rand; // Has different seeds for different threads
|
|
SharedState* shared;
|
|
Stats stats;
|
|
|
|
ThreadState(uint32_t index, SharedState *shared)
|
|
: tid(index),
|
|
rand(1000 + index + shared->GetSeed()),
|
|
shared(shared) {
|
|
}
|
|
};
|
|
|
|
} // namespace
|
|
|
|
class StressTest {
|
|
public:
|
|
StressTest()
|
|
: cache_(NewLRUCache(FLAGS_cache_size)),
|
|
compressed_cache_(FLAGS_compressed_cache_size >= 0 ?
|
|
NewLRUCache(FLAGS_compressed_cache_size) :
|
|
nullptr),
|
|
filter_policy_(FLAGS_bloom_bits >= 0
|
|
? NewBloomFilterPolicy(FLAGS_bloom_bits)
|
|
: nullptr),
|
|
db_(nullptr),
|
|
num_times_reopened_(0) {
|
|
if (FLAGS_destroy_db_initially) {
|
|
std::vector<std::string> files;
|
|
FLAGS_env->GetChildren(FLAGS_db, &files);
|
|
for (unsigned int i = 0; i < files.size(); i++) {
|
|
if (Slice(files[i]).starts_with("heap-")) {
|
|
FLAGS_env->DeleteFile(FLAGS_db + "/" + files[i]);
|
|
}
|
|
}
|
|
DestroyDB(FLAGS_db, Options());
|
|
}
|
|
}
|
|
|
|
~StressTest() {
|
|
delete db_;
|
|
delete filter_policy_;
|
|
}
|
|
|
|
void Run() {
|
|
PrintEnv();
|
|
Open();
|
|
SharedState shared(this);
|
|
uint32_t n = shared.GetNumThreads();
|
|
|
|
std::vector<ThreadState*> threads(n);
|
|
for (uint32_t i = 0; i < n; i++) {
|
|
threads[i] = new ThreadState(i, &shared);
|
|
FLAGS_env->StartThread(ThreadBody, threads[i]);
|
|
}
|
|
// Each thread goes through the following states:
|
|
// initializing -> wait for others to init -> read/populate/depopulate
|
|
// wait for others to operate -> verify -> done
|
|
|
|
{
|
|
MutexLock l(shared.GetMutex());
|
|
while (!shared.AllInitialized()) {
|
|
shared.GetCondVar()->Wait();
|
|
}
|
|
|
|
double now = FLAGS_env->NowMicros();
|
|
fprintf(stdout, "%s Starting database operations\n",
|
|
FLAGS_env->TimeToString((uint64_t) now/1000000).c_str());
|
|
|
|
shared.SetStart();
|
|
shared.GetCondVar()->SignalAll();
|
|
while (!shared.AllOperated()) {
|
|
shared.GetCondVar()->Wait();
|
|
}
|
|
|
|
now = FLAGS_env->NowMicros();
|
|
if (FLAGS_test_batches_snapshots) {
|
|
fprintf(stdout, "%s Limited verification already done during gets\n",
|
|
FLAGS_env->TimeToString((uint64_t) now/1000000).c_str());
|
|
} else {
|
|
fprintf(stdout, "%s Starting verification\n",
|
|
FLAGS_env->TimeToString((uint64_t) now/1000000).c_str());
|
|
}
|
|
|
|
shared.SetStartVerify();
|
|
shared.GetCondVar()->SignalAll();
|
|
while (!shared.AllDone()) {
|
|
shared.GetCondVar()->Wait();
|
|
}
|
|
}
|
|
|
|
for (unsigned int i = 1; i < n; i++) {
|
|
threads[0]->stats.Merge(threads[i]->stats);
|
|
}
|
|
threads[0]->stats.Report("Stress Test");
|
|
|
|
for (unsigned int i = 0; i < n; i++) {
|
|
delete threads[i];
|
|
threads[i] = nullptr;
|
|
}
|
|
double now = FLAGS_env->NowMicros();
|
|
if (!FLAGS_test_batches_snapshots) {
|
|
fprintf(stdout, "%s Verification successful\n",
|
|
FLAGS_env->TimeToString((uint64_t) now/1000000).c_str());
|
|
}
|
|
PrintStatistics();
|
|
}
|
|
|
|
private:
|
|
|
|
static void ThreadBody(void* v) {
|
|
ThreadState* thread = reinterpret_cast<ThreadState*>(v);
|
|
SharedState* shared = thread->shared;
|
|
|
|
{
|
|
MutexLock l(shared->GetMutex());
|
|
shared->IncInitialized();
|
|
if (shared->AllInitialized()) {
|
|
shared->GetCondVar()->SignalAll();
|
|
}
|
|
while (!shared->Started()) {
|
|
shared->GetCondVar()->Wait();
|
|
}
|
|
}
|
|
thread->shared->GetStressTest()->OperateDb(thread);
|
|
|
|
{
|
|
MutexLock l(shared->GetMutex());
|
|
shared->IncOperated();
|
|
if (shared->AllOperated()) {
|
|
shared->GetCondVar()->SignalAll();
|
|
}
|
|
while (!shared->VerifyStarted()) {
|
|
shared->GetCondVar()->Wait();
|
|
}
|
|
}
|
|
|
|
if (!FLAGS_test_batches_snapshots) {
|
|
thread->shared->GetStressTest()->VerifyDb(thread);
|
|
}
|
|
|
|
{
|
|
MutexLock l(shared->GetMutex());
|
|
shared->IncDone();
|
|
if (shared->AllDone()) {
|
|
shared->GetCondVar()->SignalAll();
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
// Given a key K and value V, this puts ("0"+K, "0"+V), ("1"+K, "1"+V), ...
|
|
// ("9"+K, "9"+V) in DB atomically i.e in a single batch.
|
|
// Also refer MultiGet.
|
|
Status MultiPut(ThreadState* thread,
|
|
const WriteOptions& writeoptions,
|
|
const Slice& key, const Slice& value, size_t sz) {
|
|
std::string keys[10] = {"9", "8", "7", "6", "5",
|
|
"4", "3", "2", "1", "0"};
|
|
std::string values[10] = {"9", "8", "7", "6", "5",
|
|
"4", "3", "2", "1", "0"};
|
|
Slice value_slices[10];
|
|
WriteBatch batch;
|
|
Status s;
|
|
for (int i = 0; i < 10; i++) {
|
|
keys[i] += key.ToString();
|
|
values[i] += value.ToString();
|
|
value_slices[i] = values[i];
|
|
if (FLAGS_use_merge) {
|
|
batch.Merge(keys[i], value_slices[i]);
|
|
} else {
|
|
batch.Put(keys[i], value_slices[i]);
|
|
}
|
|
}
|
|
|
|
s = db_->Write(writeoptions, &batch);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "multiput error: %s\n", s.ToString().c_str());
|
|
thread->stats.AddErrors(1);
|
|
} else {
|
|
// we did 10 writes each of size sz + 1
|
|
thread->stats.AddBytesForWrites(10, (sz + 1) * 10);
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
// Given a key K, this deletes ("0"+K), ("1"+K),... ("9"+K)
|
|
// in DB atomically i.e in a single batch. Also refer MultiGet.
|
|
Status MultiDelete(ThreadState* thread,
|
|
const WriteOptions& writeoptions,
|
|
const Slice& key) {
|
|
std::string keys[10] = {"9", "7", "5", "3", "1",
|
|
"8", "6", "4", "2", "0"};
|
|
|
|
WriteBatch batch;
|
|
Status s;
|
|
for (int i = 0; i < 10; i++) {
|
|
keys[i] += key.ToString();
|
|
batch.Delete(keys[i]);
|
|
}
|
|
|
|
s = db_->Write(writeoptions, &batch);
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "multidelete error: %s\n", s.ToString().c_str());
|
|
thread->stats.AddErrors(1);
|
|
} else {
|
|
thread->stats.AddDeletes(10);
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
// Given a key K, this gets values for "0"+K, "1"+K,..."9"+K
|
|
// in the same snapshot, and verifies that all the values are of the form
|
|
// "0"+V, "1"+V,..."9"+V.
|
|
// ASSUMES that MultiPut was used to put (K, V) into the DB.
|
|
Status MultiGet(ThreadState* thread,
|
|
const ReadOptions& readoptions,
|
|
const Slice& key, std::string* value) {
|
|
std::string keys[10] = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"};
|
|
Slice key_slices[10];
|
|
std::string values[10];
|
|
ReadOptions readoptionscopy = readoptions;
|
|
readoptionscopy.snapshot = db_->GetSnapshot();
|
|
Status s;
|
|
for (int i = 0; i < 10; i++) {
|
|
keys[i] += key.ToString();
|
|
key_slices[i] = keys[i];
|
|
s = db_->Get(readoptionscopy, key_slices[i], value);
|
|
if (!s.ok() && !s.IsNotFound()) {
|
|
fprintf(stderr, "get error: %s\n", s.ToString().c_str());
|
|
values[i] = "";
|
|
thread->stats.AddErrors(1);
|
|
// we continue after error rather than exiting so that we can
|
|
// find more errors if any
|
|
} else if (s.IsNotFound()) {
|
|
values[i] = "";
|
|
thread->stats.AddGets(1, 0);
|
|
} else {
|
|
values[i] = *value;
|
|
|
|
char expected_prefix = (keys[i])[0];
|
|
char actual_prefix = (values[i])[0];
|
|
if (actual_prefix != expected_prefix) {
|
|
fprintf(stderr, "error expected prefix = %c actual = %c\n",
|
|
expected_prefix, actual_prefix);
|
|
}
|
|
(values[i])[0] = ' '; // blank out the differing character
|
|
thread->stats.AddGets(1, 1);
|
|
}
|
|
}
|
|
db_->ReleaseSnapshot(readoptionscopy.snapshot);
|
|
|
|
// Now that we retrieved all values, check that they all match
|
|
for (int i = 1; i < 10; i++) {
|
|
if (values[i] != values[0]) {
|
|
fprintf(stderr, "error : inconsistent values for key %s: %s, %s\n",
|
|
key.ToString().c_str(), values[0].c_str(),
|
|
values[i].c_str());
|
|
// we continue after error rather than exiting so that we can
|
|
// find more errors if any
|
|
}
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
// Given a prefix P, this does prefix scans for "0"+P, "1"+P,..."9"+P
|
|
// in the same snapshot. Each of these 10 scans returns a series of
|
|
// values; each series should be the same length, and it is verified
|
|
// for each index i that all the i'th values are of the form "0"+V,
|
|
// "1"+V,..."9"+V.
|
|
// ASSUMES that MultiPut was used to put (K, V)
|
|
Status MultiPrefixScan(ThreadState* thread,
|
|
const ReadOptions& readoptions,
|
|
const Slice& prefix) {
|
|
std::string prefixes[10] = {"0", "1", "2", "3", "4",
|
|
"5", "6", "7", "8", "9"};
|
|
Slice prefix_slices[10];
|
|
ReadOptions readoptionscopy[10];
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
Iterator* iters[10];
|
|
Status s = Status::OK();
|
|
for (int i = 0; i < 10; i++) {
|
|
prefixes[i] += prefix.ToString();
|
|
prefix_slices[i] = prefixes[i];
|
|
readoptionscopy[i] = readoptions;
|
|
readoptionscopy[i].prefix = &prefix_slices[i];
|
|
readoptionscopy[i].snapshot = snapshot;
|
|
iters[i] = db_->NewIterator(readoptionscopy[i]);
|
|
iters[i]->SeekToFirst();
|
|
}
|
|
|
|
int count = 0;
|
|
while (iters[0]->Valid()) {
|
|
count++;
|
|
std::string values[10];
|
|
// get list of all values for this iteration
|
|
for (int i = 0; i < 10; i++) {
|
|
// no iterator should finish before the first one
|
|
assert(iters[i]->Valid());
|
|
values[i] = iters[i]->value().ToString();
|
|
|
|
char expected_first = (prefixes[i])[0];
|
|
char actual_first = (values[i])[0];
|
|
|
|
if (actual_first != expected_first) {
|
|
fprintf(stderr, "error expected first = %c actual = %c\n",
|
|
expected_first, actual_first);
|
|
}
|
|
(values[i])[0] = ' '; // blank out the differing character
|
|
}
|
|
// make sure all values are equivalent
|
|
for (int i = 0; i < 10; i++) {
|
|
if (values[i] != values[0]) {
|
|
fprintf(stderr, "error : inconsistent values for prefix %s: %s, %s\n",
|
|
prefix.ToString().c_str(), values[0].c_str(),
|
|
values[i].c_str());
|
|
// we continue after error rather than exiting so that we can
|
|
// find more errors if any
|
|
}
|
|
iters[i]->Next();
|
|
}
|
|
}
|
|
|
|
// cleanup iterators and snapshot
|
|
for (int i = 0; i < 10; i++) {
|
|
// if the first iterator finished, they should have all finished
|
|
assert(!iters[i]->Valid());
|
|
assert(iters[i]->status().ok());
|
|
delete iters[i];
|
|
}
|
|
db_->ReleaseSnapshot(snapshot);
|
|
|
|
if (s.ok()) {
|
|
thread->stats.AddPrefixes(1, count);
|
|
} else {
|
|
thread->stats.AddErrors(1);
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
// Given a key K, this creates an iterator which scans to K and then
|
|
// does a random sequence of Next/Prev operations.
|
|
Status MultiIterate(ThreadState* thread,
|
|
const ReadOptions& readoptions,
|
|
const Slice& key) {
|
|
Status s;
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
ReadOptions readoptionscopy = readoptions;
|
|
readoptionscopy.snapshot = snapshot;
|
|
unique_ptr<Iterator> iter(db_->NewIterator(readoptionscopy));
|
|
|
|
iter->Seek(key);
|
|
for (uint64_t i = 0; i < FLAGS_num_iterations && iter->Valid(); i++) {
|
|
if (thread->rand.OneIn(2)) {
|
|
iter->Next();
|
|
} else {
|
|
iter->Prev();
|
|
}
|
|
}
|
|
|
|
if (s.ok()) {
|
|
thread->stats.AddIterations(1);
|
|
} else {
|
|
thread->stats.AddErrors(1);
|
|
}
|
|
|
|
db_->ReleaseSnapshot(snapshot);
|
|
|
|
return s;
|
|
}
|
|
|
|
void OperateDb(ThreadState* thread) {
|
|
ReadOptions read_opts(FLAGS_verify_checksum, true);
|
|
WriteOptions write_opts;
|
|
char value[100];
|
|
long max_key = thread->shared->GetMaxKey();
|
|
std::string from_db;
|
|
if (FLAGS_sync) {
|
|
write_opts.sync = true;
|
|
}
|
|
write_opts.disableWAL = FLAGS_disable_wal;
|
|
const int prefixBound = (int)FLAGS_readpercent + (int)FLAGS_prefixpercent;
|
|
const int writeBound = prefixBound + (int)FLAGS_writepercent;
|
|
const int delBound = writeBound + (int)FLAGS_delpercent;
|
|
|
|
thread->stats.Start();
|
|
for (uint64_t i = 0; i < FLAGS_ops_per_thread; i++) {
|
|
if(i != 0 && (i % (FLAGS_ops_per_thread / (FLAGS_reopen + 1))) == 0) {
|
|
{
|
|
thread->stats.FinishedSingleOp();
|
|
MutexLock l(thread->shared->GetMutex());
|
|
thread->shared->IncVotedReopen();
|
|
if (thread->shared->AllVotedReopen()) {
|
|
thread->shared->GetStressTest()->Reopen();
|
|
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();
|
|
}
|
|
}
|
|
|
|
long rand_key = thread->rand.Next() % max_key;
|
|
std::string keystr = Key(rand_key);
|
|
Slice key = keystr;
|
|
int prob_op = thread->rand.Uniform(100);
|
|
|
|
if (prob_op >= 0 && prob_op < (int)FLAGS_readpercent) {
|
|
// OPERATION read
|
|
if (!FLAGS_test_batches_snapshots) {
|
|
Status s = db_->Get(read_opts, key, &from_db);
|
|
if (s.ok()) {
|
|
// found case
|
|
thread->stats.AddGets(1, 1);
|
|
} else if (s.IsNotFound()) {
|
|
// not found case
|
|
thread->stats.AddGets(1, 0);
|
|
} else {
|
|
// errors case
|
|
thread->stats.AddErrors(1);
|
|
}
|
|
} else {
|
|
MultiGet(thread, read_opts, key, &from_db);
|
|
}
|
|
} else if ((int)FLAGS_readpercent <= prob_op && prob_op < prefixBound) {
|
|
// OPERATION prefix scan
|
|
// keys are longs (e.g., 8 bytes), so we let prefixes be
|
|
// everything except the last byte. So there will be 2^8=256
|
|
// keys per prefix.
|
|
Slice prefix = Slice(key.data(), key.size() - 1);
|
|
if (!FLAGS_test_batches_snapshots) {
|
|
read_opts.prefix = &prefix;
|
|
Iterator* iter = db_->NewIterator(read_opts);
|
|
int count = 0;
|
|
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
|
|
assert(iter->key().starts_with(prefix));
|
|
count++;
|
|
}
|
|
assert(count <= 256);
|
|
if (iter->status().ok()) {
|
|
thread->stats.AddPrefixes(1, count);
|
|
} else {
|
|
thread->stats.AddErrors(1);
|
|
}
|
|
delete iter;
|
|
} else {
|
|
MultiPrefixScan(thread, read_opts, prefix);
|
|
}
|
|
read_opts.prefix = nullptr;
|
|
} else if (prefixBound <= prob_op && prob_op < writeBound) {
|
|
// OPERATION write
|
|
uint32_t value_base = thread->rand.Next();
|
|
size_t sz = GenerateValue(value_base, value, sizeof(value));
|
|
Slice v(value, sz);
|
|
if (!FLAGS_test_batches_snapshots) {
|
|
MutexLock l(thread->shared->GetMutexForKey(rand_key));
|
|
if (FLAGS_verify_before_write) {
|
|
std::string keystr2 = Key(rand_key);
|
|
Slice k = keystr2;
|
|
Status s = db_->Get(read_opts, k, &from_db);
|
|
VerifyValue(rand_key,
|
|
read_opts,
|
|
*(thread->shared),
|
|
from_db,
|
|
s,
|
|
true);
|
|
}
|
|
thread->shared->Put(rand_key, value_base);
|
|
if (FLAGS_use_merge) {
|
|
db_->Merge(write_opts, key, v);
|
|
} else {
|
|
db_->Put(write_opts, key, v);
|
|
}
|
|
thread->stats.AddBytesForWrites(1, sz);
|
|
} else {
|
|
MultiPut(thread, write_opts, key, v, sz);
|
|
}
|
|
PrintKeyValue(rand_key, value, sz);
|
|
} else if (writeBound <= prob_op && prob_op < delBound) {
|
|
// OPERATION delete
|
|
if (!FLAGS_test_batches_snapshots) {
|
|
MutexLock l(thread->shared->GetMutexForKey(rand_key));
|
|
thread->shared->Delete(rand_key);
|
|
db_->Delete(write_opts, key);
|
|
thread->stats.AddDeletes(1);
|
|
} else {
|
|
MultiDelete(thread, write_opts, key);
|
|
}
|
|
} else {
|
|
// OPERATION iterate
|
|
MultiIterate(thread, read_opts, key);
|
|
}
|
|
thread->stats.FinishedSingleOp();
|
|
}
|
|
|
|
thread->stats.Stop();
|
|
}
|
|
|
|
void VerifyDb(ThreadState* thread) const {
|
|
ReadOptions options(FLAGS_verify_checksum, true);
|
|
const SharedState& shared = *(thread->shared);
|
|
static const long max_key = shared.GetMaxKey();
|
|
static const long keys_per_thread = max_key / shared.GetNumThreads();
|
|
long start = keys_per_thread * thread->tid;
|
|
long end = start + keys_per_thread;
|
|
if (thread->tid == shared.GetNumThreads() - 1) {
|
|
end = max_key;
|
|
}
|
|
if (!thread->rand.OneIn(2)) {
|
|
// Use iterator to verify this range
|
|
unique_ptr<Iterator> iter(db_->NewIterator(options));
|
|
iter->Seek(Key(start));
|
|
for (long i = start; i < end; i++) {
|
|
std::string from_db;
|
|
std::string keystr = Key(i);
|
|
Slice k = keystr;
|
|
Status s = iter->status();
|
|
if (iter->Valid()) {
|
|
if (iter->key().compare(k) > 0) {
|
|
s = Status::NotFound(Slice());
|
|
} else if (iter->key().compare(k) == 0) {
|
|
from_db = iter->value().ToString();
|
|
iter->Next();
|
|
} else if (iter->key().compare(k) < 0) {
|
|
VerificationAbort("An out of range key was found", i);
|
|
}
|
|
} else {
|
|
// The iterator found no value for the key in question, so do not
|
|
// move to the next item in the iterator
|
|
s = Status::NotFound(Slice());
|
|
}
|
|
VerifyValue(i, options, shared, from_db, s, true);
|
|
if (from_db.length()) {
|
|
PrintKeyValue(i, from_db.data(), from_db.length());
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// Use Get to verify this range
|
|
for (long i = start; i < end; i++) {
|
|
std::string from_db;
|
|
std::string keystr = Key(i);
|
|
Slice k = keystr;
|
|
Status s = db_->Get(options, k, &from_db);
|
|
VerifyValue(i, options, shared, from_db, s, true);
|
|
if (from_db.length()) {
|
|
PrintKeyValue(i, from_db.data(), from_db.length());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void VerificationAbort(std::string msg, long key) const {
|
|
fprintf(stderr, "Verification failed for key %ld: %s\n",
|
|
key, msg.c_str());
|
|
exit(1);
|
|
}
|
|
|
|
void VerifyValue(long key,
|
|
const ReadOptions &opts,
|
|
const SharedState &shared,
|
|
const std::string &value_from_db,
|
|
Status s,
|
|
bool strict=false) const {
|
|
// compare value_from_db with the value in the shared state
|
|
char value[100];
|
|
uint32_t value_base = shared.Get(key);
|
|
if (value_base == SharedState::SENTINEL && !strict) {
|
|
return;
|
|
}
|
|
|
|
if (s.ok()) {
|
|
if (value_base == SharedState::SENTINEL) {
|
|
VerificationAbort("Unexpected value found", key);
|
|
}
|
|
size_t sz = GenerateValue(value_base, value, sizeof(value));
|
|
if (value_from_db.length() != sz) {
|
|
VerificationAbort("Length of value read is not equal", key);
|
|
}
|
|
if (memcmp(value_from_db.data(), value, sz) != 0) {
|
|
VerificationAbort("Contents of value read don't match", key);
|
|
}
|
|
} else {
|
|
if (value_base != SharedState::SENTINEL) {
|
|
VerificationAbort("Value not found", key);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void PrintKeyValue(uint32_t key, const char *value, size_t sz) {
|
|
if (!FLAGS_verbose) return;
|
|
fprintf(stdout, "%u ==> (%u) ", key, (unsigned int)sz);
|
|
for (size_t i=0; i<sz; i++) {
|
|
fprintf(stdout, "%X", value[i]);
|
|
}
|
|
fprintf(stdout, "\n");
|
|
}
|
|
|
|
static size_t GenerateValue(uint32_t rand, char *v, size_t max_sz) {
|
|
size_t value_sz = ((rand % 3) + 1) * FLAGS_value_size_mult;
|
|
assert(value_sz <= max_sz && value_sz >= sizeof(uint32_t));
|
|
*((uint32_t*)v) = rand;
|
|
for (size_t i=sizeof(uint32_t); i < value_sz; i++) {
|
|
v[i] = (char)(rand ^ i);
|
|
}
|
|
v[value_sz] = '\0';
|
|
return value_sz; // the size of the value set.
|
|
}
|
|
|
|
void PrintEnv() const {
|
|
fprintf(stdout, "LevelDB version : %d.%d\n",
|
|
kMajorVersion, kMinorVersion);
|
|
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, "Iterate percentage : %d%%\n", FLAGS_iterpercent);
|
|
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, "Purge redundant %% : %d\n",
|
|
FLAGS_purge_redundant_percent);
|
|
fprintf(stdout, "Deletes use filter : %d\n",
|
|
FLAGS_filter_deletes);
|
|
fprintf(stdout, "Num keys per lock : %d\n",
|
|
1 << FLAGS_log2_keys_per_lock);
|
|
|
|
const char* compression = "";
|
|
switch (FLAGS_compression_type_e) {
|
|
case rocksdb::kNoCompression:
|
|
compression = "none";
|
|
break;
|
|
case rocksdb::kSnappyCompression:
|
|
compression = "snappy";
|
|
break;
|
|
case rocksdb::kZlibCompression:
|
|
compression = "zlib";
|
|
break;
|
|
case rocksdb::kBZip2Compression:
|
|
compression = "bzip2";
|
|
break;
|
|
case rocksdb::kLZ4Compression:
|
|
compression = "lz4";
|
|
case rocksdb::kLZ4HCCompression:
|
|
compression = "lz4hc";
|
|
break;
|
|
}
|
|
|
|
fprintf(stdout, "Compression : %s\n", compression);
|
|
|
|
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, "------------------------------------------------\n");
|
|
}
|
|
|
|
void Open() {
|
|
assert(db_ == nullptr);
|
|
Options options;
|
|
options.block_cache = cache_;
|
|
options.block_cache_compressed = compressed_cache_;
|
|
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_background_compactions = FLAGS_max_background_compactions;
|
|
options.compaction_style =
|
|
static_cast<rocksdb::CompactionStyle>(FLAGS_compaction_style);
|
|
options.block_size = FLAGS_block_size;
|
|
options.filter_policy = filter_policy_;
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(FLAGS_prefix_size));
|
|
options.max_open_files = FLAGS_open_files;
|
|
options.statistics = dbstats;
|
|
options.env = FLAGS_env;
|
|
options.disableDataSync = FLAGS_disable_data_sync;
|
|
options.use_fsync = FLAGS_use_fsync;
|
|
options.allow_mmap_reads = FLAGS_mmap_read;
|
|
rocksdb_kill_odds = FLAGS_kill_random_test;
|
|
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 = FLAGS_compression_type_e;
|
|
options.create_if_missing = true;
|
|
options.disable_seek_compaction = FLAGS_disable_seek_compaction;
|
|
options.delete_obsolete_files_period_micros =
|
|
FLAGS_delete_obsolete_files_period_micros;
|
|
options.max_manifest_file_size = 1024;
|
|
options.filter_deletes = FLAGS_filter_deletes;
|
|
if ((FLAGS_prefix_size == 0) == (FLAGS_rep_factory == kHashSkipList)) {
|
|
fprintf(stderr,
|
|
"prefix_size should be non-zero iff memtablerep == prefix_hash\n");
|
|
exit(1);
|
|
}
|
|
switch (FLAGS_rep_factory) {
|
|
case kHashSkipList:
|
|
options.memtable_factory.reset(NewHashSkipListRepFactory());
|
|
break;
|
|
case kSkipList:
|
|
// no need to do anything
|
|
break;
|
|
case kVectorRep:
|
|
options.memtable_factory.reset(new VectorRepFactory());
|
|
break;
|
|
}
|
|
static Random purge_percent(1000); // no benefit from non-determinism here
|
|
if (static_cast<int32_t>(purge_percent.Uniform(100)) <
|
|
FLAGS_purge_redundant_percent - 1) {
|
|
options.purge_redundant_kvs_while_flush = false;
|
|
}
|
|
|
|
if (FLAGS_use_merge) {
|
|
options.merge_operator = MergeOperators::CreatePutOperator();
|
|
}
|
|
|
|
// set universal style compaction configurations, if applicable
|
|
if (FLAGS_universal_size_ratio != 0) {
|
|
options.compaction_options_universal.size_ratio =
|
|
FLAGS_universal_size_ratio;
|
|
}
|
|
if (FLAGS_universal_min_merge_width != 0) {
|
|
options.compaction_options_universal.min_merge_width =
|
|
FLAGS_universal_min_merge_width;
|
|
}
|
|
if (FLAGS_universal_max_merge_width != 0) {
|
|
options.compaction_options_universal.max_merge_width =
|
|
FLAGS_universal_max_merge_width;
|
|
}
|
|
if (FLAGS_universal_max_size_amplification_percent != 0) {
|
|
options.compaction_options_universal.max_size_amplification_percent =
|
|
FLAGS_universal_max_size_amplification_percent;
|
|
}
|
|
|
|
fprintf(stdout, "DB path: [%s]\n", FLAGS_db.c_str());
|
|
|
|
Status s;
|
|
if (FLAGS_ttl == -1) {
|
|
s = DB::Open(options, FLAGS_db, &db_);
|
|
} else {
|
|
s = UtilityDB::OpenTtlDB(options, FLAGS_db, &sdb_, FLAGS_ttl);
|
|
db_ = sdb_;
|
|
}
|
|
if (!s.ok()) {
|
|
fprintf(stderr, "open error: %s\n", s.ToString().c_str());
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
void Reopen() {
|
|
// do not close the db. Just delete the lock file. This
|
|
// simulates a crash-recovery kind of situation.
|
|
if (FLAGS_ttl != -1) {
|
|
((DBWithTTL*) db_)->TEST_Destroy_DBWithTtl();
|
|
} else {
|
|
((DBImpl*) db_)->TEST_Destroy_DBImpl();
|
|
}
|
|
db_ = nullptr;
|
|
|
|
num_times_reopened_++;
|
|
double now = FLAGS_env->NowMicros();
|
|
fprintf(stdout, "%s Reopening database for the %dth time\n",
|
|
FLAGS_env->TimeToString((uint64_t) now/1000000).c_str(),
|
|
num_times_reopened_);
|
|
Open();
|
|
}
|
|
|
|
void PrintStatistics() {
|
|
if (dbstats) {
|
|
fprintf(stdout, "STATISTICS:\n%s\n", dbstats->ToString().c_str());
|
|
}
|
|
}
|
|
|
|
private:
|
|
shared_ptr<Cache> cache_;
|
|
shared_ptr<Cache> compressed_cache_;
|
|
const FilterPolicy* filter_policy_;
|
|
DB* db_;
|
|
StackableDB* sdb_;
|
|
int num_times_reopened_;
|
|
};
|
|
|
|
} // namespace rocksdb
|
|
|
|
|
|
|
|
int main(int argc, char** argv) {
|
|
google::SetUsageMessage(std::string("\nUSAGE:\n") + std::string(argv[0]) +
|
|
" [OPTIONS]...");
|
|
google::ParseCommandLineFlags(&argc, &argv, true);
|
|
|
|
if (FLAGS_statistics) {
|
|
dbstats = rocksdb::CreateDBStatistics();
|
|
}
|
|
FLAGS_compression_type_e =
|
|
StringToCompressionType(FLAGS_compression_type.c_str());
|
|
if (!FLAGS_hdfs.empty()) {
|
|
FLAGS_env = new rocksdb::HdfsEnv(FLAGS_hdfs);
|
|
}
|
|
FLAGS_rep_factory = StringToRepFactory(FLAGS_memtablerep.c_str());
|
|
|
|
// The number of background threads should be at least as much the
|
|
// max number of concurrent compactions.
|
|
FLAGS_env->SetBackgroundThreads(FLAGS_max_background_compactions);
|
|
|
|
if ((FLAGS_readpercent + FLAGS_prefixpercent +
|
|
FLAGS_writepercent + FLAGS_delpercent + FLAGS_iterpercent) != 100) {
|
|
fprintf(stderr,
|
|
"Error: Read+Prefix+Write+Delete+Iterate percents != 100!\n");
|
|
exit(1);
|
|
}
|
|
if (FLAGS_disable_wal == 1 && FLAGS_reopen > 0) {
|
|
fprintf(stderr, "Error: Db cannot reopen safely with disable_wal set!\n");
|
|
exit(1);
|
|
}
|
|
if ((unsigned)FLAGS_reopen >= FLAGS_ops_per_thread) {
|
|
fprintf(stderr,
|
|
"Error: #DB-reopens should be < ops_per_thread\n"
|
|
"Provided reopens = %d and ops_per_thread = %lu\n",
|
|
FLAGS_reopen,
|
|
(unsigned long)FLAGS_ops_per_thread);
|
|
exit(1);
|
|
}
|
|
|
|
// Choose a location for the test database if none given with --db=<path>
|
|
if (FLAGS_db.empty()) {
|
|
std::string default_db_path;
|
|
rocksdb::Env::Default()->GetTestDirectory(&default_db_path);
|
|
default_db_path += "/dbstress";
|
|
FLAGS_db = default_db_path;
|
|
}
|
|
|
|
rocksdb::StressTest stress;
|
|
stress.Run();
|
|
return 0;
|
|
}
|