4ab26c5ad1
Summary: Currently, we only purge duplicate keys and deletions during flush if `earliest_seqno_in_memtable <= newest_snapshot`. This means that the newest snapshot happened before we first created the memtable. This is almost never true for MyRocks and MongoRocks. This patch makes purging during flush able to understand snapshots. The main logic is copied from compaction_job.cc, although the logic over there is much more complicated and extensive. However, we should try to merge the common functionality at some point. I need this patch to implement no_overwrite_i_promise functionality for flush. We'll also need this to support SingleDelete() during Flush(). @yoshinorim requested the feature. Test Plan: make check I had to adjust some unit tests to understand this new behavior Reviewers: yhchiang, yoshinorim, anthony, sdong, noetzli Reviewed By: noetzli Subscribers: yoshinorim, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D42087
62 lines
2.4 KiB
C++
62 lines
2.4 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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// 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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#pragma once
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#include <string>
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#include <utility>
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#include <vector>
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#include "db/table_properties_collector.h"
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#include "rocksdb/comparator.h"
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#include "rocksdb/env.h"
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#include "rocksdb/status.h"
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#include "rocksdb/types.h"
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#include "rocksdb/options.h"
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#include "rocksdb/immutable_options.h"
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#include "rocksdb/table_properties.h"
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namespace rocksdb {
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struct Options;
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struct FileMetaData;
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class Env;
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struct EnvOptions;
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class Iterator;
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class TableCache;
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class VersionEdit;
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class TableBuilder;
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class WritableFileWriter;
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class InternalStats;
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TableBuilder* NewTableBuilder(
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const ImmutableCFOptions& options,
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const InternalKeyComparator& internal_comparator,
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const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
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int_tbl_prop_collector_factories,
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WritableFileWriter* file, const CompressionType compression_type,
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const CompressionOptions& compression_opts,
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const bool skip_filters = false);
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// Build a Table file from the contents of *iter. The generated file
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// will be named according to number specified in meta. On success, the rest of
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// *meta will be filled with metadata about the generated table.
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// If no data is present in *iter, meta->file_size will be set to
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// zero, and no Table file will be produced.
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extern Status BuildTable(
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const std::string& dbname, Env* env, const ImmutableCFOptions& options,
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const EnvOptions& env_options, TableCache* table_cache, Iterator* iter,
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FileMetaData* meta, const InternalKeyComparator& internal_comparator,
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const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
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int_tbl_prop_collector_factories,
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std::vector<SequenceNumber> snapshots, const CompressionType compression,
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const CompressionOptions& compression_opts, bool paranoid_file_checks,
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InternalStats* internal_stats,
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const Env::IOPriority io_priority = Env::IO_HIGH,
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TableProperties* table_properties = nullptr);
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} // namespace rocksdb
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