6aba4c6a9b
Summary: Introducing Periodic Compactions. This feature allows all the files in a CF to be periodically compacted. It could help in catching any corruptions that could creep into the DB proactively as every file is constantly getting re-compacted. And also, of course, it helps to cleanup data older than certain threshold. - Introduced a new option `periodic_compaction_time` to control how long a file can live without being compacted in a CF. - This works across all levels. - The files are put in the same level after going through the compaction. (Related files in the same level are picked up as `ExpandInputstoCleanCut` is used). - Compaction filters, if any, are invoked as usual. - A new table property, `file_creation_time`, is introduced to implement this feature. This property is set to the time at which the SST file was created (and that time is given by the underlying Env/OS). This feature can be enabled on its own, or in conjunction with `ttl`. It is possible to set a different time threshold for the bottom level when used in conjunction with ttl. Since `ttl` works only on 0 to last but one levels, you could set `ttl` to, say, 1 day, and `periodic_compaction_time` to, say, 7 days. Since `ttl < periodic_compaction_time` all files in last but one levels keep getting picked up based on ttl, and almost never based on periodic_compaction_time. The files in the bottom level get picked up for compaction based on `periodic_compaction_time`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5166 Differential Revision: D14884441 Pulled By: sagar0 fbshipit-source-id: 408426cbacb409c06386a98632dcf90bfa1bda47
231 lines
10 KiB
C++
231 lines
10 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#include "options/cf_options.h"
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#ifndef __STDC_FORMAT_MACROS
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#define __STDC_FORMAT_MACROS
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#endif
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#include <inttypes.h>
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#include <cassert>
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#include <limits>
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#include <string>
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#include "options/db_options.h"
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#include "port/port.h"
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#include "rocksdb/env.h"
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#include "rocksdb/options.h"
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#include "rocksdb/concurrent_task_limiter.h"
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namespace rocksdb {
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ImmutableCFOptions::ImmutableCFOptions(const Options& options)
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: ImmutableCFOptions(ImmutableDBOptions(options), options) {}
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ImmutableCFOptions::ImmutableCFOptions(const ImmutableDBOptions& db_options,
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const ColumnFamilyOptions& cf_options)
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: compaction_style(cf_options.compaction_style),
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compaction_pri(cf_options.compaction_pri),
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user_comparator(cf_options.comparator),
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internal_comparator(InternalKeyComparator(cf_options.comparator)),
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merge_operator(cf_options.merge_operator.get()),
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compaction_filter(cf_options.compaction_filter),
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compaction_filter_factory(cf_options.compaction_filter_factory.get()),
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min_write_buffer_number_to_merge(
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cf_options.min_write_buffer_number_to_merge),
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max_write_buffer_number_to_maintain(
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cf_options.max_write_buffer_number_to_maintain),
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inplace_update_support(cf_options.inplace_update_support),
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inplace_callback(cf_options.inplace_callback),
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info_log(db_options.info_log.get()),
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statistics(db_options.statistics.get()),
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rate_limiter(db_options.rate_limiter.get()),
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info_log_level(db_options.info_log_level),
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env(db_options.env),
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allow_mmap_reads(db_options.allow_mmap_reads),
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allow_mmap_writes(db_options.allow_mmap_writes),
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db_paths(db_options.db_paths),
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memtable_factory(cf_options.memtable_factory.get()),
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table_factory(cf_options.table_factory.get()),
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table_properties_collector_factories(
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cf_options.table_properties_collector_factories),
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advise_random_on_open(db_options.advise_random_on_open),
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bloom_locality(cf_options.bloom_locality),
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purge_redundant_kvs_while_flush(
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cf_options.purge_redundant_kvs_while_flush),
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use_fsync(db_options.use_fsync),
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compression_per_level(cf_options.compression_per_level),
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bottommost_compression(cf_options.bottommost_compression),
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bottommost_compression_opts(cf_options.bottommost_compression_opts),
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compression_opts(cf_options.compression_opts),
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level_compaction_dynamic_level_bytes(
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cf_options.level_compaction_dynamic_level_bytes),
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access_hint_on_compaction_start(
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db_options.access_hint_on_compaction_start),
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new_table_reader_for_compaction_inputs(
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db_options.new_table_reader_for_compaction_inputs),
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num_levels(cf_options.num_levels),
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optimize_filters_for_hits(cf_options.optimize_filters_for_hits),
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force_consistency_checks(cf_options.force_consistency_checks),
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allow_ingest_behind(db_options.allow_ingest_behind),
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preserve_deletes(db_options.preserve_deletes),
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listeners(db_options.listeners),
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row_cache(db_options.row_cache),
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max_subcompactions(db_options.max_subcompactions),
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memtable_insert_with_hint_prefix_extractor(
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cf_options.memtable_insert_with_hint_prefix_extractor.get()),
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cf_paths(cf_options.cf_paths),
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compaction_thread_limiter(cf_options.compaction_thread_limiter) {}
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// Multiple two operands. If they overflow, return op1.
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uint64_t MultiplyCheckOverflow(uint64_t op1, double op2) {
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if (op1 == 0 || op2 <= 0) {
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return 0;
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}
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if (port::kMaxUint64 / op1 < op2) {
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return op1;
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}
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return static_cast<uint64_t>(op1 * op2);
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}
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// when level_compaction_dynamic_level_bytes is true and leveled compaction
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// is used, the base level is not always L1, so precomupted max_file_size can
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// no longer be used. Recompute file_size_for_level from base level.
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uint64_t MaxFileSizeForLevel(const MutableCFOptions& cf_options,
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int level, CompactionStyle compaction_style, int base_level,
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bool level_compaction_dynamic_level_bytes) {
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if (!level_compaction_dynamic_level_bytes || level < base_level ||
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compaction_style != kCompactionStyleLevel) {
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assert(level >= 0);
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assert(level < (int)cf_options.max_file_size.size());
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return cf_options.max_file_size[level];
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} else {
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assert(level >= 0 && base_level >= 0);
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assert(level - base_level < (int)cf_options.max_file_size.size());
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return cf_options.max_file_size[level - base_level];
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}
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}
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void MutableCFOptions::RefreshDerivedOptions(int num_levels,
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CompactionStyle compaction_style) {
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max_file_size.resize(num_levels);
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for (int i = 0; i < num_levels; ++i) {
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if (i == 0 && compaction_style == kCompactionStyleUniversal) {
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max_file_size[i] = ULLONG_MAX;
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} else if (i > 1) {
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max_file_size[i] = MultiplyCheckOverflow(max_file_size[i - 1],
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target_file_size_multiplier);
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} else {
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max_file_size[i] = target_file_size_base;
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}
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}
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}
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void MutableCFOptions::Dump(Logger* log) const {
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// Memtable related options
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ROCKS_LOG_INFO(log,
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" write_buffer_size: %" ROCKSDB_PRIszt,
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write_buffer_size);
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ROCKS_LOG_INFO(log, " max_write_buffer_number: %d",
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max_write_buffer_number);
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ROCKS_LOG_INFO(log,
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" arena_block_size: %" ROCKSDB_PRIszt,
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arena_block_size);
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ROCKS_LOG_INFO(log, " memtable_prefix_bloom_ratio: %f",
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memtable_prefix_bloom_size_ratio);
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ROCKS_LOG_INFO(log, " memtable_whole_key_filtering: %d",
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memtable_whole_key_filtering);
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ROCKS_LOG_INFO(log,
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" memtable_huge_page_size: %" ROCKSDB_PRIszt,
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memtable_huge_page_size);
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ROCKS_LOG_INFO(log,
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" max_successive_merges: %" ROCKSDB_PRIszt,
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max_successive_merges);
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ROCKS_LOG_INFO(log,
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" inplace_update_num_locks: %" ROCKSDB_PRIszt,
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inplace_update_num_locks);
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ROCKS_LOG_INFO(
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log, " prefix_extractor: %s",
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prefix_extractor == nullptr ? "nullptr" : prefix_extractor->Name());
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ROCKS_LOG_INFO(log, " disable_auto_compactions: %d",
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disable_auto_compactions);
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ROCKS_LOG_INFO(log, " soft_pending_compaction_bytes_limit: %" PRIu64,
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soft_pending_compaction_bytes_limit);
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ROCKS_LOG_INFO(log, " hard_pending_compaction_bytes_limit: %" PRIu64,
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hard_pending_compaction_bytes_limit);
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ROCKS_LOG_INFO(log, " level0_file_num_compaction_trigger: %d",
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level0_file_num_compaction_trigger);
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ROCKS_LOG_INFO(log, " level0_slowdown_writes_trigger: %d",
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level0_slowdown_writes_trigger);
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ROCKS_LOG_INFO(log, " level0_stop_writes_trigger: %d",
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level0_stop_writes_trigger);
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ROCKS_LOG_INFO(log, " max_compaction_bytes: %" PRIu64,
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max_compaction_bytes);
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ROCKS_LOG_INFO(log, " target_file_size_base: %" PRIu64,
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target_file_size_base);
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ROCKS_LOG_INFO(log, " target_file_size_multiplier: %d",
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target_file_size_multiplier);
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ROCKS_LOG_INFO(log, " max_bytes_for_level_base: %" PRIu64,
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max_bytes_for_level_base);
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ROCKS_LOG_INFO(log, " max_bytes_for_level_multiplier: %f",
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max_bytes_for_level_multiplier);
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ROCKS_LOG_INFO(log, " ttl: %" PRIu64,
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ttl);
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ROCKS_LOG_INFO(log, " periodic_compaction_seconds: %" PRIu64,
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periodic_compaction_seconds);
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std::string result;
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char buf[10];
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for (const auto m : max_bytes_for_level_multiplier_additional) {
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snprintf(buf, sizeof(buf), "%d, ", m);
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result += buf;
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}
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if (result.size() >= 2) {
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result.resize(result.size() - 2);
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} else {
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result = "";
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}
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ROCKS_LOG_INFO(log, "max_bytes_for_level_multiplier_additional: %s",
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result.c_str());
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ROCKS_LOG_INFO(log, " max_sequential_skip_in_iterations: %" PRIu64,
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max_sequential_skip_in_iterations);
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ROCKS_LOG_INFO(log, " paranoid_file_checks: %d",
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paranoid_file_checks);
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ROCKS_LOG_INFO(log, " report_bg_io_stats: %d",
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report_bg_io_stats);
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ROCKS_LOG_INFO(log, " compression: %d",
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static_cast<int>(compression));
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// Universal Compaction Options
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ROCKS_LOG_INFO(log, "compaction_options_universal.size_ratio : %d",
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compaction_options_universal.size_ratio);
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ROCKS_LOG_INFO(log, "compaction_options_universal.min_merge_width : %d",
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compaction_options_universal.min_merge_width);
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ROCKS_LOG_INFO(log, "compaction_options_universal.max_merge_width : %d",
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compaction_options_universal.max_merge_width);
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ROCKS_LOG_INFO(
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log, "compaction_options_universal.max_size_amplification_percent : %d",
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compaction_options_universal.max_size_amplification_percent);
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ROCKS_LOG_INFO(log,
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"compaction_options_universal.compression_size_percent : %d",
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compaction_options_universal.compression_size_percent);
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ROCKS_LOG_INFO(log, "compaction_options_universal.stop_style : %d",
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compaction_options_universal.stop_style);
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ROCKS_LOG_INFO(
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log, "compaction_options_universal.allow_trivial_move : %d",
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static_cast<int>(compaction_options_universal.allow_trivial_move));
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// FIFO Compaction Options
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ROCKS_LOG_INFO(log, "compaction_options_fifo.max_table_files_size : %" PRIu64,
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compaction_options_fifo.max_table_files_size);
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ROCKS_LOG_INFO(log, "compaction_options_fifo.allow_compaction : %d",
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compaction_options_fifo.allow_compaction);
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}
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MutableCFOptions::MutableCFOptions(const Options& options)
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: MutableCFOptions(ColumnFamilyOptions(options)) {}
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} // namespace rocksdb
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