fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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400 lines
16 KiB
400 lines
16 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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#include "db/builder.h"
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#include <algorithm>
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#include <deque>
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#include <vector>
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#include "db/blob/blob_file_builder.h"
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#include "db/compaction/compaction_iterator.h"
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#include "db/event_helpers.h"
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#include "db/internal_stats.h"
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#include "db/merge_helper.h"
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#include "db/output_validator.h"
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#include "db/range_del_aggregator.h"
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#include "db/table_cache.h"
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#include "db/version_edit.h"
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#include "file/file_util.h"
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#include "file/filename.h"
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#include "file/read_write_util.h"
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#include "file/writable_file_writer.h"
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#include "monitoring/iostats_context_imp.h"
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#include "monitoring/thread_status_util.h"
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#include "options/options_helper.h"
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#include "rocksdb/db.h"
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#include "rocksdb/env.h"
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#include "rocksdb/iterator.h"
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#include "rocksdb/options.h"
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#include "rocksdb/table.h"
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#include "table/block_based/block_based_table_builder.h"
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#include "table/format.h"
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#include "table/internal_iterator.h"
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#include "test_util/sync_point.h"
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#include "util/stop_watch.h"
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namespace ROCKSDB_NAMESPACE {
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class TableFactory;
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TableBuilder* NewTableBuilder(const TableBuilderOptions& tboptions,
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WritableFileWriter* file) {
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assert((tboptions.column_family_id ==
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TablePropertiesCollectorFactory::Context::kUnknownColumnFamily) ==
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tboptions.column_family_name.empty());
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return tboptions.ioptions.table_factory->NewTableBuilder(tboptions, file);
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}
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Status BuildTable(
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const std::string& dbname, VersionSet* versions,
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const ImmutableDBOptions& db_options, const TableBuilderOptions& tboptions,
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const FileOptions& file_options, TableCache* table_cache,
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InternalIterator* iter,
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std::vector<std::unique_ptr<FragmentedRangeTombstoneIterator>>
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range_del_iters,
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FileMetaData* meta, std::vector<BlobFileAddition>* blob_file_additions,
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std::vector<SequenceNumber> snapshots,
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SequenceNumber earliest_write_conflict_snapshot,
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SnapshotChecker* snapshot_checker, bool paranoid_file_checks,
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InternalStats* internal_stats, IOStatus* io_status,
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const std::shared_ptr<IOTracer>& io_tracer,
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BlobFileCreationReason blob_creation_reason, EventLogger* event_logger,
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int job_id, const Env::IOPriority io_priority,
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TableProperties* table_properties, Env::WriteLifeTimeHint write_hint,
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const std::string* full_history_ts_low,
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BlobFileCompletionCallback* blob_callback, uint64_t* num_input_entries,
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uint64_t* memtable_payload_bytes, uint64_t* memtable_garbage_bytes) {
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assert((tboptions.column_family_id ==
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TablePropertiesCollectorFactory::Context::kUnknownColumnFamily) ==
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tboptions.column_family_name.empty());
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auto& mutable_cf_options = tboptions.moptions;
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auto& ioptions = tboptions.ioptions;
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// Reports the IOStats for flush for every following bytes.
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const size_t kReportFlushIOStatsEvery = 1048576;
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OutputValidator output_validator(
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tboptions.internal_comparator,
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/*enable_order_check=*/
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mutable_cf_options.check_flush_compaction_key_order,
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/*enable_hash=*/paranoid_file_checks);
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Status s;
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meta->fd.file_size = 0;
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iter->SeekToFirst();
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std::unique_ptr<CompactionRangeDelAggregator> range_del_agg(
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new CompactionRangeDelAggregator(&tboptions.internal_comparator,
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snapshots));
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uint64_t num_unfragmented_tombstones = 0;
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uint64_t total_tombstone_payload_bytes = 0;
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for (auto& range_del_iter : range_del_iters) {
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num_unfragmented_tombstones +=
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range_del_iter->num_unfragmented_tombstones();
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total_tombstone_payload_bytes +=
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range_del_iter->total_tombstone_payload_bytes();
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range_del_agg->AddTombstones(std::move(range_del_iter));
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}
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std::string fname = TableFileName(ioptions.cf_paths, meta->fd.GetNumber(),
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meta->fd.GetPathId());
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std::vector<std::string> blob_file_paths;
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std::string file_checksum = kUnknownFileChecksum;
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std::string file_checksum_func_name = kUnknownFileChecksumFuncName;
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#ifndef ROCKSDB_LITE
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EventHelpers::NotifyTableFileCreationStarted(ioptions.listeners, dbname,
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tboptions.column_family_name,
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fname, job_id, tboptions.reason);
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#endif // !ROCKSDB_LITE
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Env* env = db_options.env;
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assert(env);
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FileSystem* fs = db_options.fs.get();
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assert(fs);
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TableProperties tp;
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if (iter->Valid() || !range_del_agg->IsEmpty()) {
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std::unique_ptr<CompactionFilter> compaction_filter;
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if (ioptions.compaction_filter_factory != nullptr &&
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ioptions.compaction_filter_factory->ShouldFilterTableFileCreation(
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tboptions.reason)) {
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CompactionFilter::Context context;
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context.is_full_compaction = false;
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context.is_manual_compaction = false;
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context.column_family_id = tboptions.column_family_id;
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context.reason = tboptions.reason;
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compaction_filter =
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ioptions.compaction_filter_factory->CreateCompactionFilter(context);
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if (compaction_filter != nullptr &&
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!compaction_filter->IgnoreSnapshots()) {
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s.PermitUncheckedError();
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return Status::NotSupported(
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"CompactionFilter::IgnoreSnapshots() = false is not supported "
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"anymore.");
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}
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}
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TableBuilder* builder;
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std::unique_ptr<WritableFileWriter> file_writer;
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{
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std::unique_ptr<FSWritableFile> file;
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#ifndef NDEBUG
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bool use_direct_writes = file_options.use_direct_writes;
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TEST_SYNC_POINT_CALLBACK("BuildTable:create_file", &use_direct_writes);
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#endif // !NDEBUG
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IOStatus io_s = NewWritableFile(fs, fname, &file, file_options);
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assert(s.ok());
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s = io_s;
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if (io_status->ok()) {
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*io_status = io_s;
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}
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if (!s.ok()) {
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EventHelpers::LogAndNotifyTableFileCreationFinished(
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event_logger, ioptions.listeners, dbname,
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tboptions.column_family_name, fname, job_id, meta->fd,
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kInvalidBlobFileNumber, tp, tboptions.reason, s, file_checksum,
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file_checksum_func_name);
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return s;
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}
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FileTypeSet tmp_set = ioptions.checksum_handoff_file_types;
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file->SetIOPriority(io_priority);
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file->SetWriteLifeTimeHint(write_hint);
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file_writer.reset(new WritableFileWriter(
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std::move(file), fname, file_options, ioptions.clock, io_tracer,
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ioptions.stats, ioptions.listeners,
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ioptions.file_checksum_gen_factory.get(),
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tmp_set.Contains(FileType::kTableFile), false));
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builder = NewTableBuilder(tboptions, file_writer.get());
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}
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MergeHelper merge(
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env, tboptions.internal_comparator.user_comparator(),
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ioptions.merge_operator.get(), compaction_filter.get(), ioptions.logger,
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true /* internal key corruption is not ok */,
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snapshots.empty() ? 0 : snapshots.back(), snapshot_checker);
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std::unique_ptr<BlobFileBuilder> blob_file_builder(
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(mutable_cf_options.enable_blob_files && blob_file_additions)
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? new BlobFileBuilder(
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versions, fs, &ioptions, &mutable_cf_options, &file_options,
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job_id, tboptions.column_family_id,
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tboptions.column_family_name, io_priority, write_hint,
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io_tracer, blob_callback, blob_creation_reason,
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&blob_file_paths, blob_file_additions)
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: nullptr);
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CompactionIterator c_iter(
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iter, tboptions.internal_comparator.user_comparator(), &merge,
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kMaxSequenceNumber, &snapshots, earliest_write_conflict_snapshot,
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snapshot_checker, env, ShouldReportDetailedTime(env, ioptions.stats),
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true /* internal key corruption is not ok */, range_del_agg.get(),
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blob_file_builder.get(), ioptions.allow_data_in_errors,
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/*compaction=*/nullptr, compaction_filter.get(),
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/*shutting_down=*/nullptr,
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/*preserve_deletes_seqnum=*/0, /*manual_compaction_paused=*/nullptr,
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/*manual_compaction_canceled=*/nullptr, db_options.info_log,
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full_history_ts_low);
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c_iter.SeekToFirst();
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for (; c_iter.Valid(); c_iter.Next()) {
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const Slice& key = c_iter.key();
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const Slice& value = c_iter.value();
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const ParsedInternalKey& ikey = c_iter.ikey();
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// Generate a rolling 64-bit hash of the key and values
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// Note :
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// Here "key" integrates 'sequence_number'+'kType'+'user key'.
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s = output_validator.Add(key, value);
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if (!s.ok()) {
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break;
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}
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builder->Add(key, value);
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meta->UpdateBoundaries(key, value, ikey.sequence, ikey.type);
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// TODO(noetzli): Update stats after flush, too.
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if (io_priority == Env::IO_HIGH &&
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IOSTATS(bytes_written) >= kReportFlushIOStatsEvery) {
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ThreadStatusUtil::SetThreadOperationProperty(
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ThreadStatus::FLUSH_BYTES_WRITTEN, IOSTATS(bytes_written));
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}
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}
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if (!s.ok()) {
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c_iter.status().PermitUncheckedError();
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} else if (!c_iter.status().ok()) {
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s = c_iter.status();
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}
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if (s.ok()) {
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auto range_del_it = range_del_agg->NewIterator();
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for (range_del_it->SeekToFirst(); range_del_it->Valid();
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range_del_it->Next()) {
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auto tombstone = range_del_it->Tombstone();
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auto kv = tombstone.Serialize();
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builder->Add(kv.first.Encode(), kv.second);
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meta->UpdateBoundariesForRange(kv.first, tombstone.SerializeEndKey(),
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tombstone.seq_,
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tboptions.internal_comparator);
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}
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}
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TEST_SYNC_POINT("BuildTable:BeforeFinishBuildTable");
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const bool empty = builder->IsEmpty();
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if (num_input_entries != nullptr) {
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*num_input_entries =
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c_iter.num_input_entry_scanned() + num_unfragmented_tombstones;
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}
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if (!s.ok() || empty) {
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builder->Abandon();
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} else {
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s = builder->Finish();
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}
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if (io_status->ok()) {
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*io_status = builder->io_status();
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}
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if (s.ok() && !empty) {
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uint64_t file_size = builder->FileSize();
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meta->fd.file_size = file_size;
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meta->marked_for_compaction = builder->NeedCompact();
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assert(meta->fd.GetFileSize() > 0);
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tp = builder->GetTableProperties(); // refresh now that builder is finished
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if (memtable_payload_bytes != nullptr &&
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memtable_garbage_bytes != nullptr) {
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const CompactionIterationStats& ci_stats = c_iter.iter_stats();
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uint64_t total_payload_bytes = ci_stats.total_input_raw_key_bytes +
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ci_stats.total_input_raw_value_bytes +
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total_tombstone_payload_bytes;
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uint64_t total_payload_bytes_written =
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(tp.raw_key_size + tp.raw_value_size);
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// Prevent underflow, which may still happen at this point
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// since we only support inserts, deletes, and deleteRanges.
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if (total_payload_bytes_written <= total_payload_bytes) {
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*memtable_payload_bytes = total_payload_bytes;
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*memtable_garbage_bytes =
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total_payload_bytes - total_payload_bytes_written;
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} else {
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*memtable_payload_bytes = 0;
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*memtable_garbage_bytes = 0;
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}
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}
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if (table_properties) {
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*table_properties = tp;
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}
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}
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delete builder;
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// Finish and check for file errors
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TEST_SYNC_POINT("BuildTable:BeforeSyncTable");
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if (s.ok() && !empty) {
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StopWatch sw(ioptions.clock, ioptions.stats, TABLE_SYNC_MICROS);
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*io_status = file_writer->Sync(ioptions.use_fsync);
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}
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TEST_SYNC_POINT("BuildTable:BeforeCloseTableFile");
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if (s.ok() && io_status->ok() && !empty) {
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*io_status = file_writer->Close();
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}
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if (s.ok() && io_status->ok() && !empty) {
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// Add the checksum information to file metadata.
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meta->file_checksum = file_writer->GetFileChecksum();
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meta->file_checksum_func_name = file_writer->GetFileChecksumFuncName();
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file_checksum = meta->file_checksum;
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file_checksum_func_name = meta->file_checksum_func_name;
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}
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if (s.ok()) {
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s = *io_status;
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}
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if (blob_file_builder) {
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if (s.ok()) {
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s = blob_file_builder->Finish();
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} else {
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blob_file_builder->Abandon(s);
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}
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blob_file_builder.reset();
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}
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// TODO Also check the IO status when create the Iterator.
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if (s.ok() && !empty) {
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// Verify that the table is usable
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// We set for_compaction to false and don't OptimizeForCompactionTableRead
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// here because this is a special case after we finish the table building
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// No matter whether use_direct_io_for_flush_and_compaction is true,
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// we will regrad this verification as user reads since the goal is
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// to cache it here for further user reads
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ReadOptions read_options;
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std::unique_ptr<InternalIterator> it(table_cache->NewIterator(
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read_options, file_options, tboptions.internal_comparator, *meta,
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nullptr /* range_del_agg */,
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mutable_cf_options.prefix_extractor.get(), nullptr,
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(internal_stats == nullptr) ? nullptr
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: internal_stats->GetFileReadHist(0),
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TableReaderCaller::kFlush, /*arena=*/nullptr,
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/*skip_filter=*/false, tboptions.level_at_creation,
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MaxFileSizeForL0MetaPin(mutable_cf_options),
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/*smallest_compaction_key=*/nullptr,
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/*largest_compaction_key*/ nullptr,
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/*allow_unprepared_value*/ false));
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s = it->status();
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if (s.ok() && paranoid_file_checks) {
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OutputValidator file_validator(tboptions.internal_comparator,
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/*enable_order_check=*/true,
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/*enable_hash=*/true);
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for (it->SeekToFirst(); it->Valid(); it->Next()) {
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// Generate a rolling 64-bit hash of the key and values
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file_validator.Add(it->key(), it->value()).PermitUncheckedError();
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}
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s = it->status();
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if (s.ok() && !output_validator.CompareValidator(file_validator)) {
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s = Status::Corruption("Paranoid checksums do not match");
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}
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}
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}
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}
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// Check for input iterator errors
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if (!iter->status().ok()) {
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s = iter->status();
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}
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if (!s.ok() || meta->fd.GetFileSize() == 0) {
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TEST_SYNC_POINT("BuildTable:BeforeDeleteFile");
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constexpr IODebugContext* dbg = nullptr;
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Status ignored = fs->DeleteFile(fname, IOOptions(), dbg);
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ignored.PermitUncheckedError();
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assert(blob_file_additions || blob_file_paths.empty());
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if (blob_file_additions) {
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for (const std::string& blob_file_path : blob_file_paths) {
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ignored = DeleteDBFile(&db_options, blob_file_path, dbname,
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/*force_bg=*/false, /*force_fg=*/false);
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ignored.PermitUncheckedError();
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TEST_SYNC_POINT("BuildTable::AfterDeleteFile");
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}
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}
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}
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Status status_for_listener = s;
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if (meta->fd.GetFileSize() == 0) {
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fname = "(nil)";
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if (s.ok()) {
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status_for_listener = Status::Aborted("Empty SST file not kept");
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}
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}
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// Output to event logger and fire events.
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EventHelpers::LogAndNotifyTableFileCreationFinished(
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event_logger, ioptions.listeners, dbname, tboptions.column_family_name,
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fname, job_id, meta->fd, meta->oldest_blob_file_number, tp,
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tboptions.reason, status_for_listener, file_checksum,
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file_checksum_func_name);
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return s;
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}
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} // namespace ROCKSDB_NAMESPACE
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