fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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691 lines
29 KiB
691 lines
29 KiB
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#ifdef GFLAGS
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#include "db_stress_tool/db_stress_common.h"
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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, "Invalid value for --%s: %lu, overflow\n", 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 __attribute__((__unused__)) =
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RegisterFlagValidator(&FLAGS_seed, &ValidateUint32Range);
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DEFINE_bool(read_only, false, "True if open DB in read-only mode during tests");
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DEFINE_int64(max_key, 1 * KB * KB,
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"Max number of key/values to place in database");
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DEFINE_int32(max_key_len, 3, "Maximum length of a key in 8-byte units");
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DEFINE_string(key_len_percent_dist, "",
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"Percentages of keys of various lengths. For example, 1,30,69 "
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"means 1% of keys are 8 bytes, 30% are 16 bytes, and 69% are "
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"24 bytes. If not specified, it will be evenly distributed");
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DEFINE_int32(key_window_scale_factor, 10,
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"This value will be multiplied by 100 to come up with a window "
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"size for varying the key length");
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DEFINE_int32(column_families, 10, "Number of column families");
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DEFINE_double(
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hot_key_alpha, 0,
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"Use Zipfian distribution to generate the key "
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"distribution. If it is not specified, write path will use random "
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"distribution to generate the keys. The parameter is [0, double_max]). "
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"However, the larger alpha is, the more shewed will be. If alpha is "
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"larger than 2, it is likely that only 1 key will be accessed. The "
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"Recommended value is [0.8-1.5]. The distribution is also related to "
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"max_key and total iterations of generating the hot key. ");
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DEFINE_string(
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options_file, "",
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"The path to a RocksDB options file. If specified, then db_stress will "
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"run with the RocksDB options in the default column family of the "
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"specified options file. Note that, when an options file is provided, "
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"db_stress will ignore the flag values for all options that may be passed "
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"via options file.");
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DEFINE_int64(
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active_width, 0,
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"Number of keys in active span of the key-range at any given time. The "
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"span begins with its left endpoint at key 0, gradually moves rightwards, "
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"and ends with its right endpoint at max_key. If set to 0, active_width "
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"will be sanitized to be equal to max_key.");
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// TODO(noetzli) Add support for single deletes
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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_bool(atomic_flush, false,
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"If set, enables atomic flush in the options.\n");
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DEFINE_bool(test_cf_consistency, false,
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"If set, runs the stress test dedicated to verifying writes to "
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"multiple column families are consistent. Setting this implies "
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"`atomic_flush=true` is set true if `disable_wal=false`.\n");
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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_int32(compaction_readahead_size, 0, "Compaction readahead size");
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DEFINE_bool(enable_pipelined_write, false, "Pipeline WAL/memtable writes");
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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_bool(progress_reports, true,
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"If true, db_stress will report number of finished operations");
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DEFINE_uint64(db_write_buffer_size,
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ROCKSDB_NAMESPACE::Options().db_write_buffer_size,
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"Number of bytes to buffer in all memtables before compacting");
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DEFINE_int32(
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write_buffer_size,
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static_cast<int32_t>(ROCKSDB_NAMESPACE::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_NAMESPACE::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_NAMESPACE::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(max_write_buffer_number_to_maintain,
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ROCKSDB_NAMESPACE::Options().max_write_buffer_number_to_maintain,
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"The total maximum number of write buffers to maintain in memory "
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"including copies of buffers that have already been flushed. "
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"Unlike max_write_buffer_number, this parameter does not affect "
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"flushing. This controls the minimum amount of write history "
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"that will be available in memory for conflict checking when "
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"Transactions are used. If this value is too low, some "
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"transactions may fail at commit time due to not being able to "
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"determine whether there were any write conflicts. Setting this "
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"value to 0 will cause write buffers to be freed immediately "
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"after they are flushed. If this value is set to -1, "
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"'max_write_buffer_number' will be used.");
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DEFINE_int64(max_write_buffer_size_to_maintain,
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ROCKSDB_NAMESPACE::Options().max_write_buffer_size_to_maintain,
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"The total maximum size of write buffers to maintain in memory "
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"including copies of buffers that have already been flushed. "
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"Unlike max_write_buffer_number, this parameter does not affect "
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"flushing. This controls the minimum amount of write history "
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"that will be available in memory for conflict checking when "
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"Transactions are used. If this value is too low, some "
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"transactions may fail at commit time due to not being able to "
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"determine whether there were any write conflicts. Setting this "
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"value to 0 will cause write buffers to be freed immediately "
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"after they are flushed. If this value is set to -1, "
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"'max_write_buffer_number' will be used.");
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DEFINE_double(memtable_prefix_bloom_size_ratio,
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ROCKSDB_NAMESPACE::Options().memtable_prefix_bloom_size_ratio,
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"creates prefix blooms for memtables, each with size "
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"`write_buffer_size * memtable_prefix_bloom_size_ratio`.");
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DEFINE_bool(memtable_whole_key_filtering,
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ROCKSDB_NAMESPACE::Options().memtable_whole_key_filtering,
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"Enable whole key filtering in memtables.");
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DEFINE_int32(open_files, ROCKSDB_NAMESPACE::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_NAMESPACE::Options().compaction_style,
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"");
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DEFINE_int32(level0_file_num_compaction_trigger,
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ROCKSDB_NAMESPACE::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_NAMESPACE::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_NAMESPACE::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,
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static_cast<int32_t>(
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ROCKSDB_NAMESPACE::BlockBasedTableOptions().block_size),
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"Number of bytes in a block.");
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DEFINE_int32(format_version,
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static_cast<int32_t>(
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ROCKSDB_NAMESPACE::BlockBasedTableOptions().format_version),
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"Format version of SST files.");
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DEFINE_int32(
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index_block_restart_interval,
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ROCKSDB_NAMESPACE::BlockBasedTableOptions().index_block_restart_interval,
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"Number of keys between restart points "
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"for delta encoding of keys in index block.");
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DEFINE_int32(max_background_compactions,
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ROCKSDB_NAMESPACE::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(num_bottom_pri_threads, 0,
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"The number of threads in the bottom-priority thread pool (used "
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"by universal compaction only).");
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DEFINE_int32(compaction_thread_pool_adjust_interval, 0,
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"The interval (in milliseconds) to adjust compaction thread pool "
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"size. Don't change it periodically if the value is 0.");
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DEFINE_int32(compaction_thread_pool_variations, 2,
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"Range of background thread pool size variations when adjusted "
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"periodically.");
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DEFINE_int32(max_background_flushes,
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ROCKSDB_NAMESPACE::Options().max_background_flushes,
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"The maximum number of concurrent background flushes "
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"that can occur in parallel.");
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DEFINE_int32(universal_size_ratio, 0,
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"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,
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"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,
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"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_int32(clear_column_family_one_in, 1000000,
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"With a chance of 1/N, delete a column family and then recreate "
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"it again. If N == 0, never drop/create column families. "
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"When test_batches_snapshots is true, this flag has no effect");
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DEFINE_int32(get_live_files_one_in, 1000000,
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"With a chance of 1/N, call GetLiveFiles to verify if it returns "
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"correctly. If N == 0, do not call the interface.");
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DEFINE_int32(
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get_sorted_wal_files_one_in, 1000000,
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"With a chance of 1/N, call GetSortedWalFiles to verify if it returns "
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"correctly. (Note that this API may legitimately return an error.) If N == "
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"0, do not call the interface.");
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DEFINE_int32(
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get_current_wal_file_one_in, 1000000,
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"With a chance of 1/N, call GetCurrentWalFile to verify if it returns "
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"correctly. (Note that this API may legitimately return an error.) If N == "
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"0, do not call the interface.");
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DEFINE_int32(set_options_one_in, 0,
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"With a chance of 1/N, change some random options");
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DEFINE_int32(set_in_place_one_in, 0,
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"With a chance of 1/N, toggle in place support option");
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DEFINE_int64(cache_size, 2LL * KB * KB * KB,
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"Number of bytes to use as a cache of uncompressed data.");
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DEFINE_bool(cache_index_and_filter_blocks, false,
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"True if indexes/filters should be cached in block cache.");
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DEFINE_bool(use_clock_cache, false,
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"Replace default LRU block cache with clock cache.");
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DEFINE_uint64(subcompactions, 1,
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"Maximum number of subcompactions to divide L0-L1 compactions "
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"into.");
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DEFINE_uint64(periodic_compaction_seconds, 1000,
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"Files older than this value will be picked up for compaction.");
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DEFINE_uint64(compaction_ttl, 1000,
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"Files older than TTL will be compacted to the next level.");
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DEFINE_bool(allow_concurrent_memtable_write, false,
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"Allow multi-writers to update mem tables in parallel.");
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DEFINE_bool(enable_write_thread_adaptive_yield, true,
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"Use a yielding spin loop for brief writer thread waits.");
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#ifndef ROCKSDB_LITE
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// BlobDB Options
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DEFINE_bool(use_blob_db, false, "Use BlobDB.");
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DEFINE_uint64(blob_db_min_blob_size,
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ROCKSDB_NAMESPACE::blob_db::BlobDBOptions().min_blob_size,
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"Smallest blob to store in a file. Blobs smaller than this "
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"will be inlined with the key in the LSM tree.");
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DEFINE_uint64(blob_db_bytes_per_sync,
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ROCKSDB_NAMESPACE::blob_db::BlobDBOptions().bytes_per_sync,
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"Sync blob files once per every N bytes written.");
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DEFINE_uint64(blob_db_file_size,
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ROCKSDB_NAMESPACE::blob_db::BlobDBOptions().blob_file_size,
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"Target size of each blob file.");
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DEFINE_bool(
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blob_db_enable_gc,
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ROCKSDB_NAMESPACE::blob_db::BlobDBOptions().enable_garbage_collection,
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"Enable BlobDB garbage collection.");
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DEFINE_double(
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blob_db_gc_cutoff,
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ROCKSDB_NAMESPACE::blob_db::BlobDBOptions().garbage_collection_cutoff,
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"Cutoff ratio for BlobDB garbage collection.");
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#endif // !ROCKSDB_LITE
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static const bool FLAGS_subcompactions_dummy __attribute__((__unused__)) =
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RegisterFlagValidator(&FLAGS_subcompactions, &ValidateUint32Range);
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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", flagname,
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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 __attribute__((__unused__)) =
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RegisterFlagValidator(&FLAGS_reopen, &ValidateInt32Positive);
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DEFINE_double(bloom_bits, 10,
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"Bloom filter bits per key. "
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"Negative means use default settings.");
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DEFINE_bool(use_block_based_filter, false,
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"use block based filter"
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"instead of full filter for block based table");
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DEFINE_bool(partition_filters, false,
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"use partitioned filters "
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"for block-based table");
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DEFINE_int32(
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index_type,
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static_cast<int32_t>(
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ROCKSDB_NAMESPACE::BlockBasedTableOptions::kBinarySearch),
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"Type of block-based table index (see `enum IndexType` in table.h)");
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DEFINE_string(db, "", "Use the db with the following name.");
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DEFINE_string(secondaries_base, "",
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"Use this path as the base path for secondary instances.");
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DEFINE_bool(test_secondary, false, "Test secondary instance.");
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DEFINE_string(
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expected_values_path, "",
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"File where the array of expected uint32_t values will be stored. If "
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"provided and non-empty, the DB state will be verified against these "
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"values after recovery. --max_key and --column_family must be kept the "
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"same across invocations of this program that use the same "
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"--expected_values_path.");
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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_NAMESPACE::Options().allow_mmap_reads,
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"Allow reads to occur via mmap-ing files");
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DEFINE_bool(mmap_write, ROCKSDB_NAMESPACE::Options().allow_mmap_writes,
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"Allow writes to occur via mmap-ing files");
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DEFINE_bool(use_direct_reads, ROCKSDB_NAMESPACE::Options().use_direct_reads,
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"Use O_DIRECT for reading data");
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DEFINE_bool(use_direct_io_for_flush_and_compaction,
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ROCKSDB_NAMESPACE::Options().use_direct_io_for_flush_and_compaction,
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"Use O_DIRECT for writing data");
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DEFINE_bool(mock_direct_io, false,
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"Mock direct IO by not using O_DIRECT for direct IO read");
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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(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 __attribute__((__unused__)) =
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RegisterFlagValidator(&FLAGS_kill_random_test, &ValidateInt32Positive);
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extern int rocksdb_kill_odds;
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DEFINE_string(kill_prefix_blacklist, "",
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"If non-empty, kill points with prefix in the list given will be"
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" skipped. Items are comma-separated.");
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extern std::vector<std::string> rocksdb_kill_prefix_blacklist;
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DEFINE_bool(disable_wal, false, "If true, do not write WAL for write.");
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DEFINE_uint64(recycle_log_file_num,
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ROCKSDB_NAMESPACE::Options().recycle_log_file_num,
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"Number of old WAL files to keep around for later recycling");
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DEFINE_int64(target_file_size_base,
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ROCKSDB_NAMESPACE::Options().target_file_size_base,
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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 target level-N file size (N >= 2)");
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DEFINE_uint64(max_bytes_for_level_base,
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ROCKSDB_NAMESPACE::Options().max_bytes_for_level_base,
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"Max bytes for level-1");
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DEFINE_double(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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DEFINE_int32(range_deletion_width, 10,
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"The width of the range deletion intervals.");
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DEFINE_uint64(rate_limiter_bytes_per_sec, 0, "Set options.rate_limiter value.");
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|
DEFINE_bool(rate_limit_bg_reads, false,
|
|
"Use options.rate_limiter on compaction reads");
|
|
|
|
DEFINE_uint64(sst_file_manager_bytes_per_sec, 0,
|
|
"Set `Options::sst_file_manager` to delete at this rate. By "
|
|
"default the deletion rate is unbounded.");
|
|
|
|
DEFINE_uint64(sst_file_manager_bytes_per_truncate, 0,
|
|
"Set `Options::sst_file_manager` to delete in chunks of this "
|
|
"many bytes. By default whole files will be deleted.");
|
|
|
|
DEFINE_bool(use_txn, false,
|
|
"Use TransactionDB. Currently the default write policy is "
|
|
"TxnDBWritePolicy::WRITE_PREPARED");
|
|
|
|
DEFINE_uint64(txn_write_policy, 0,
|
|
"The transaction write policy. Default is "
|
|
"TxnDBWritePolicy::WRITE_COMMITTED. Note that this should not be "
|
|
"changed accross crashes.");
|
|
|
|
DEFINE_bool(unordered_write, false,
|
|
"Turn on the unordered_write feature. This options is currently "
|
|
"tested only in combination with use_txn=true and "
|
|
"txn_write_policy=TxnDBWritePolicy::WRITE_PREPARED.");
|
|
|
|
DEFINE_int32(backup_one_in, 0,
|
|
"If non-zero, then CreateNewBackup() will be called once for "
|
|
"every N operations on average. 0 indicates CreateNewBackup() "
|
|
"is disabled.");
|
|
|
|
DEFINE_int32(checkpoint_one_in, 0,
|
|
"If non-zero, then CreateCheckpoint() will be called once for "
|
|
"every N operations on average. 0 indicates CreateCheckpoint() "
|
|
"is disabled.");
|
|
|
|
DEFINE_int32(ingest_external_file_one_in, 0,
|
|
"If non-zero, then IngestExternalFile() will be called once for "
|
|
"every N operations on average. 0 indicates IngestExternalFile() "
|
|
"is disabled.");
|
|
|
|
DEFINE_int32(ingest_external_file_width, 1000,
|
|
"The width of the ingested external files.");
|
|
|
|
DEFINE_int32(compact_files_one_in, 0,
|
|
"If non-zero, then CompactFiles() will be called once for every N "
|
|
"operations on average. 0 indicates CompactFiles() is disabled.");
|
|
|
|
DEFINE_int32(compact_range_one_in, 0,
|
|
"If non-zero, then CompactRange() will be called once for every N "
|
|
"operations on average. 0 indicates CompactRange() is disabled.");
|
|
|
|
DEFINE_int32(flush_one_in, 0,
|
|
"If non-zero, then Flush() will be called once for every N ops "
|
|
"on average. 0 indicates calls to Flush() are disabled.");
|
|
|
|
DEFINE_int32(pause_background_one_in, 0,
|
|
"If non-zero, then PauseBackgroundWork()+Continue will be called "
|
|
"once for every N ops on average. 0 disables.");
|
|
|
|
DEFINE_int32(compact_range_width, 10000,
|
|
"The width of the ranges passed to CompactRange().");
|
|
|
|
DEFINE_int32(acquire_snapshot_one_in, 0,
|
|
"If non-zero, then acquires a snapshot once every N operations on "
|
|
"average.");
|
|
|
|
DEFINE_bool(compare_full_db_state_snapshot, false,
|
|
"If set we compare state of entire db (in one of the threads) with"
|
|
"each snapshot.");
|
|
|
|
DEFINE_uint64(snapshot_hold_ops, 0,
|
|
"If non-zero, then releases snapshots N operations after they're "
|
|
"acquired.");
|
|
|
|
DEFINE_bool(long_running_snapshots, false,
|
|
"If set, hold on some some snapshots for much longer time.");
|
|
|
|
DEFINE_bool(use_multiget, false,
|
|
"If set, use the batched MultiGet API for reads");
|
|
|
|
static bool ValidateInt32Percent(const char* flagname, int32_t value) {
|
|
if (value < 0 || value > 100) {
|
|
fprintf(stderr, "Invalid value for --%s: %d, 0<= pct <=100 \n", flagname,
|
|
value);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
DEFINE_int32(readpercent, 10,
|
|
"Ratio of reads to total workload (expressed as a percentage)");
|
|
static const bool FLAGS_readpercent_dummy __attribute__((__unused__)) =
|
|
RegisterFlagValidator(&FLAGS_readpercent, &ValidateInt32Percent);
|
|
|
|
DEFINE_int32(prefixpercent, 20,
|
|
"Ratio of prefix iterators to total workload (expressed as a"
|
|
" percentage)");
|
|
static const bool FLAGS_prefixpercent_dummy __attribute__((__unused__)) =
|
|
RegisterFlagValidator(&FLAGS_prefixpercent, &ValidateInt32Percent);
|
|
|
|
DEFINE_int32(writepercent, 45,
|
|
"Ratio of writes to total workload (expressed as a percentage)");
|
|
static const bool FLAGS_writepercent_dummy __attribute__((__unused__)) =
|
|
RegisterFlagValidator(&FLAGS_writepercent, &ValidateInt32Percent);
|
|
|
|
DEFINE_int32(delpercent, 15,
|
|
"Ratio of deletes to total workload (expressed as a percentage)");
|
|
static const bool FLAGS_delpercent_dummy __attribute__((__unused__)) =
|
|
RegisterFlagValidator(&FLAGS_delpercent, &ValidateInt32Percent);
|
|
|
|
DEFINE_int32(delrangepercent, 0,
|
|
"Ratio of range deletions to total workload (expressed as a "
|
|
"percentage). Cannot be used with test_batches_snapshots");
|
|
static const bool FLAGS_delrangepercent_dummy __attribute__((__unused__)) =
|
|
RegisterFlagValidator(&FLAGS_delrangepercent, &ValidateInt32Percent);
|
|
|
|
DEFINE_int32(nooverwritepercent, 60,
|
|
"Ratio of keys without overwrite to total workload (expressed as "
|
|
" a percentage)");
|
|
static const bool FLAGS_nooverwritepercent_dummy __attribute__((__unused__)) =
|
|
RegisterFlagValidator(&FLAGS_nooverwritepercent, &ValidateInt32Percent);
|
|
|
|
DEFINE_int32(iterpercent, 10,
|
|
"Ratio of iterations to total workload"
|
|
" (expressed as a percentage)");
|
|
static const bool FLAGS_iterpercent_dummy __attribute__((__unused__)) =
|
|
RegisterFlagValidator(&FLAGS_iterpercent, &ValidateInt32Percent);
|
|
|
|
DEFINE_uint64(num_iterations, 10, "Number of iterations per MultiIterate run");
|
|
static const bool FLAGS_num_iterations_dummy __attribute__((__unused__)) =
|
|
RegisterFlagValidator(&FLAGS_num_iterations, &ValidateUint32Range);
|
|
|
|
DEFINE_string(compression_type, "snappy",
|
|
"Algorithm to use to compress the database");
|
|
|
|
DEFINE_int32(compression_max_dict_bytes, 0,
|
|
"Maximum size of dictionary used to prime the compression "
|
|
"library.");
|
|
|
|
DEFINE_int32(compression_zstd_max_train_bytes, 0,
|
|
"Maximum size of training data passed to zstd's dictionary "
|
|
"trainer.");
|
|
|
|
DEFINE_int32(compression_parallel_threads, 1,
|
|
"Number of threads for parallel compression.");
|
|
|
|
DEFINE_string(bottommost_compression_type, "disable",
|
|
"Algorithm to use to compress bottommost level of the database. "
|
|
"\"disable\" means disabling the feature");
|
|
|
|
DEFINE_string(checksum_type, "kCRC32c", "Algorithm to use to checksum blocks");
|
|
|
|
DEFINE_string(hdfs, "", "Name of hdfs environment");
|
|
|
|
DEFINE_string(env_uri, "",
|
|
"URI for env lookup. Mutually exclusive with --hdfs");
|
|
|
|
DEFINE_uint64(ops_per_thread, 1200000, "Number of operations per thread.");
|
|
static const bool FLAGS_ops_per_thread_dummy __attribute__((__unused__)) =
|
|
RegisterFlagValidator(&FLAGS_ops_per_thread, &ValidateUint32Range);
|
|
|
|
DEFINE_uint64(log2_keys_per_lock, 2, "Log2 of number of keys per lock");
|
|
static const bool FLAGS_log2_keys_per_lock_dummy __attribute__((__unused__)) =
|
|
RegisterFlagValidator(&FLAGS_log2_keys_per_lock, &ValidateUint32Range);
|
|
|
|
DEFINE_uint64(max_manifest_file_size, 16384, "Maximum size of a MANIFEST file");
|
|
|
|
DEFINE_bool(in_place_update, false, "On true, does inplace update in memtable");
|
|
|
|
DEFINE_int32(secondary_catch_up_one_in, 0,
|
|
"If non-zero, the secondaries attemp to catch up with the primary "
|
|
"once for every N operations on average. 0 indicates the "
|
|
"secondaries do not try to catch up after open.");
|
|
|
|
DEFINE_string(memtablerep, "skip_list", "");
|
|
|
|
inline static bool ValidatePrefixSize(const char* flagname, int32_t value) {
|
|
if (value < -1 || value > 8) {
|
|
fprintf(stderr, "Invalid value for --%s: %d. -1 <= PrefixSize <= 8\n",
|
|
flagname, value);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
DEFINE_int32(prefix_size, 7,
|
|
"Control the prefix size for HashSkipListRep. "
|
|
"-1 is disabled.");
|
|
static const bool FLAGS_prefix_size_dummy __attribute__((__unused__)) =
|
|
RegisterFlagValidator(&FLAGS_prefix_size, &ValidatePrefixSize);
|
|
|
|
DEFINE_bool(use_merge, false,
|
|
"On true, replaces all writes with a Merge "
|
|
"that behaves like a Put");
|
|
|
|
DEFINE_bool(use_full_merge_v1, false,
|
|
"On true, use a merge operator that implement the deprecated "
|
|
"version of FullMerge");
|
|
|
|
DEFINE_int32(sync_wal_one_in, 0,
|
|
"If non-zero, then SyncWAL() will be called once for every N ops "
|
|
"on average. 0 indicates that calls to SyncWAL() are disabled.");
|
|
|
|
DEFINE_bool(avoid_unnecessary_blocking_io,
|
|
ROCKSDB_NAMESPACE::Options().avoid_unnecessary_blocking_io,
|
|
"If true, some expensive cleaning up operations will be moved from "
|
|
"user reads to high-pri background threads.");
|
|
|
|
DEFINE_bool(write_dbid_to_manifest,
|
|
ROCKSDB_NAMESPACE::Options().write_dbid_to_manifest,
|
|
"Write DB_ID to manifest");
|
|
|
|
DEFINE_bool(avoid_flush_during_recovery,
|
|
ROCKSDB_NAMESPACE::Options().avoid_flush_during_recovery,
|
|
"Avoid flush during recovery");
|
|
|
|
DEFINE_uint64(max_write_batch_group_size_bytes,
|
|
ROCKSDB_NAMESPACE::Options().max_write_batch_group_size_bytes,
|
|
"Max write batch group size");
|
|
|
|
DEFINE_bool(level_compaction_dynamic_level_bytes,
|
|
ROCKSDB_NAMESPACE::Options().level_compaction_dynamic_level_bytes,
|
|
"Use dynamic level");
|
|
|
|
DEFINE_int32(verify_checksum_one_in, 0,
|
|
"If non-zero, then DB::VerifyChecksum() will be called to do"
|
|
" checksum verification of all the files in the database once for"
|
|
" every N ops on average. 0 indicates that calls to"
|
|
" VerifyChecksum() are disabled.");
|
|
DEFINE_int32(verify_db_one_in, 0,
|
|
"If non-zero, call VerifyDb() once for every N ops. 0 indicates "
|
|
"that VerifyDb() will not be called in OperateDb(). Note that "
|
|
"enabling this can slow down tests.");
|
|
|
|
DEFINE_int32(continuous_verification_interval, 1000,
|
|
"While test is running, verify db every N milliseconds. 0 "
|
|
"disables continuous verification.");
|
|
|
|
DEFINE_int32(approximate_size_one_in, 64,
|
|
"If non-zero, DB::GetApproximateSizes() will be called against"
|
|
" random key ranges.");
|
|
|
|
DEFINE_int32(read_fault_one_in, 1000,
|
|
"On non-zero, enables fault injection on read");
|
|
|
|
DEFINE_bool(sync_fault_injection, false,
|
|
"If true, FaultInjectionTestFS will be used for write operations, "
|
|
" and unsynced data in DB will lost after crash.");
|
|
#endif // GFLAGS
|
|
|