mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-29 18:33:58 +00:00
d2ca04e3ed
Summary: Add `num_levels`, `is_bottommost`, and table file creation `reason` to `FilterBuildingContext`, in anticipation of more powerful Bloom-like filter support. To support this, added `is_bottommost` and `reason` to `TableBuilderOptions`, which allowed removing `reason` parameter from `rocksdb::BuildTable`. I attempted to remove `skip_filters` from `TableBuilderOptions`, because filter construction decisions should arise from options, not one-off parameters. I could not completely remove it because the public API for SstFileWriter takes a `skip_filters` parameter, and translating this into an option change would mean awkwardly replacing the table_factory if it is BlockBasedTableFactory with new filter_policy=nullptr option. I marked this public skip_filters option as deprecated because of this oddity. (skip_filters on the read side probably makes sense.) At least `skip_filters` is now largely hidden for users of `TableBuilderOptions` and is no longer used for implementing the optimize_filters_for_hits option. Bringing the logic for that option closer to handling of FilterBuildingContext makes it more obvious that hese two are using the same notion of "bottommost." (Planned: configuration options for Bloom-like filters that generalize `optimize_filters_for_hits`) Recommended follow-up: Try to get away from "bottommost level" naming of things, which is inaccurate (see VersionStorageInfo::RangeMightExistAfterSortedRun), and move to "bottommost run" or just "bottommost." Pull Request resolved: https://github.com/facebook/rocksdb/pull/8246 Test Plan: extended an existing unit test to exercise and check various filter building contexts. Also, existing tests for optimize_filters_for_hits validate some of the "bottommost" handling, which is now closely connected to FilterBuildingContext::is_bottommost through TableBuilderOptions::is_bottommost Reviewed By: mrambacher Differential Revision: D28099346 Pulled By: pdillinger fbshipit-source-id: 2c1072e29c24d4ac404c761a7b7663292372600a
71 lines
2.8 KiB
C++
71 lines
2.8 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under both the GPLv2 (found in the
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
|
// (found in the LICENSE.Apache file in the root directory).
|
|
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file. See the AUTHORS file for names of contributors.
|
|
#pragma once
|
|
#include <string>
|
|
#include <utility>
|
|
#include <vector>
|
|
#include "db/range_tombstone_fragmenter.h"
|
|
#include "db/table_properties_collector.h"
|
|
#include "logging/event_logger.h"
|
|
#include "options/cf_options.h"
|
|
#include "rocksdb/comparator.h"
|
|
#include "rocksdb/env.h"
|
|
#include "rocksdb/listener.h"
|
|
#include "rocksdb/options.h"
|
|
#include "rocksdb/status.h"
|
|
#include "rocksdb/table_properties.h"
|
|
#include "rocksdb/types.h"
|
|
#include "table/scoped_arena_iterator.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
|
|
struct FileMetaData;
|
|
|
|
class VersionSet;
|
|
class BlobFileAddition;
|
|
class SnapshotChecker;
|
|
class TableCache;
|
|
class TableBuilder;
|
|
class WritableFileWriter;
|
|
class InternalStats;
|
|
class BlobFileCompletionCallback;
|
|
|
|
// Convenience function for NewTableBuilder on the embedded table_factory.
|
|
TableBuilder* NewTableBuilder(const TableBuilderOptions& tboptions,
|
|
WritableFileWriter* file);
|
|
|
|
// Build a Table file from the contents of *iter. The generated file
|
|
// will be named according to number specified in meta. On success, the rest of
|
|
// *meta will be filled with metadata about the generated table.
|
|
// If no data is present in *iter, meta->file_size will be set to
|
|
// zero, and no Table file will be produced.
|
|
//
|
|
// @param column_family_name Name of the column family that is also identified
|
|
// by column_family_id, or empty string if unknown.
|
|
extern Status BuildTable(
|
|
const std::string& dbname, VersionSet* versions,
|
|
const ImmutableDBOptions& db_options, const TableBuilderOptions& tboptions,
|
|
const FileOptions& file_options, TableCache* table_cache,
|
|
InternalIterator* iter,
|
|
std::vector<std::unique_ptr<FragmentedRangeTombstoneIterator>>
|
|
range_del_iters,
|
|
FileMetaData* meta, std::vector<BlobFileAddition>* blob_file_additions,
|
|
std::vector<SequenceNumber> snapshots,
|
|
SequenceNumber earliest_write_conflict_snapshot,
|
|
SnapshotChecker* snapshot_checker, bool paranoid_file_checks,
|
|
InternalStats* internal_stats, IOStatus* io_status,
|
|
const std::shared_ptr<IOTracer>& io_tracer,
|
|
EventLogger* event_logger = nullptr, int job_id = 0,
|
|
const Env::IOPriority io_priority = Env::IO_HIGH,
|
|
TableProperties* table_properties = nullptr,
|
|
Env::WriteLifeTimeHint write_hint = Env::WLTH_NOT_SET,
|
|
const std::string* full_history_ts_low = nullptr,
|
|
BlobFileCompletionCallback* blob_callback = nullptr);
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|