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ec4ebeff30
Summary: Many workloads have temporal locality, where recently written items are read back in a short period of time. When using remote file systems, this is inefficient since it involves network traffic and higher latencies. Because of this, we would like to support prepopulating the blob cache during flush. This task is a part of https://github.com/facebook/rocksdb/issues/10156 Pull Request resolved: https://github.com/facebook/rocksdb/pull/10298 Reviewed By: ltamasi Differential Revision: D37908743 Pulled By: gangliao fbshipit-source-id: 9feaed234bc719d38f0c02975c1ad19fa4bb37d1
123 lines
4.7 KiB
C++
123 lines
4.7 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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#pragma once
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#include <map>
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#include <stdexcept>
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#include <string>
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#include <vector>
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#include "rocksdb/advanced_options.h"
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#include "rocksdb/options.h"
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#include "rocksdb/status.h"
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#include "rocksdb/table.h"
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namespace ROCKSDB_NAMESPACE {
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struct ColumnFamilyOptions;
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struct ConfigOptions;
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struct DBOptions;
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struct ImmutableCFOptions;
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struct ImmutableDBOptions;
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struct MutableDBOptions;
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struct MutableCFOptions;
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struct Options;
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std::vector<CompressionType> GetSupportedCompressions();
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std::vector<CompressionType> GetSupportedDictCompressions();
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std::vector<ChecksumType> GetSupportedChecksums();
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inline bool IsSupportedChecksumType(ChecksumType type) {
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// Avoid annoying compiler warning-as-error (-Werror=type-limits)
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auto min = kNoChecksum;
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auto max = kXXH3;
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return type >= min && type <= max;
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}
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// Checks that the combination of DBOptions and ColumnFamilyOptions are valid
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Status ValidateOptions(const DBOptions& db_opts,
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const ColumnFamilyOptions& cf_opts);
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DBOptions BuildDBOptions(const ImmutableDBOptions& immutable_db_options,
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const MutableDBOptions& mutable_db_options);
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ColumnFamilyOptions BuildColumnFamilyOptions(
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const ColumnFamilyOptions& ioptions,
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const MutableCFOptions& mutable_cf_options);
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void UpdateColumnFamilyOptions(const ImmutableCFOptions& ioptions,
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ColumnFamilyOptions* cf_opts);
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void UpdateColumnFamilyOptions(const MutableCFOptions& moptions,
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ColumnFamilyOptions* cf_opts);
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#ifndef ROCKSDB_LITE
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std::unique_ptr<Configurable> DBOptionsAsConfigurable(
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const MutableDBOptions& opts);
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std::unique_ptr<Configurable> DBOptionsAsConfigurable(
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const DBOptions& opts,
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const std::unordered_map<std::string, std::string>* opt_map = nullptr);
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std::unique_ptr<Configurable> CFOptionsAsConfigurable(
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const MutableCFOptions& opts);
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std::unique_ptr<Configurable> CFOptionsAsConfigurable(
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const ColumnFamilyOptions& opts,
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const std::unordered_map<std::string, std::string>* opt_map = nullptr);
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extern Status StringToMap(
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const std::string& opts_str,
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std::unordered_map<std::string, std::string>* opts_map);
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#endif // !ROCKSDB_LITE
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struct OptionsHelper {
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static const std::string kCFOptionsName /*= "ColumnFamilyOptions"*/;
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static const std::string kDBOptionsName /*= "DBOptions" */;
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static std::map<CompactionStyle, std::string> compaction_style_to_string;
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static std::map<CompactionPri, std::string> compaction_pri_to_string;
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static std::map<CompactionStopStyle, std::string>
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compaction_stop_style_to_string;
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static std::map<Temperature, std::string> temperature_to_string;
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static std::unordered_map<std::string, ChecksumType> checksum_type_string_map;
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static std::unordered_map<std::string, CompressionType>
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compression_type_string_map;
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static std::unordered_map<std::string, PrepopulateBlobCache>
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prepopulate_blob_cache_string_map;
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#ifndef ROCKSDB_LITE
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static std::unordered_map<std::string, CompactionStopStyle>
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compaction_stop_style_string_map;
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static std::unordered_map<std::string, EncodingType> encoding_type_string_map;
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static std::unordered_map<std::string, CompactionStyle>
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compaction_style_string_map;
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static std::unordered_map<std::string, CompactionPri>
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compaction_pri_string_map;
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static std::unordered_map<std::string, Temperature> temperature_string_map;
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#endif // !ROCKSDB_LITE
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};
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// Some aliasing
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static auto& compaction_style_to_string =
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OptionsHelper::compaction_style_to_string;
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static auto& compaction_pri_to_string = OptionsHelper::compaction_pri_to_string;
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static auto& compaction_stop_style_to_string =
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OptionsHelper::compaction_stop_style_to_string;
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static auto& temperature_to_string = OptionsHelper::temperature_to_string;
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static auto& checksum_type_string_map = OptionsHelper::checksum_type_string_map;
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#ifndef ROCKSDB_LITE
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static auto& compaction_stop_style_string_map =
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OptionsHelper::compaction_stop_style_string_map;
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static auto& compression_type_string_map =
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OptionsHelper::compression_type_string_map;
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static auto& encoding_type_string_map = OptionsHelper::encoding_type_string_map;
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static auto& compaction_style_string_map =
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OptionsHelper::compaction_style_string_map;
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static auto& compaction_pri_string_map =
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OptionsHelper::compaction_pri_string_map;
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static auto& temperature_string_map = OptionsHelper::temperature_string_map;
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static auto& prepopulate_blob_cache_string_map =
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OptionsHelper::prepopulate_blob_cache_string_map;
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#endif // !ROCKSDB_LITE
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} // namespace ROCKSDB_NAMESPACE
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