69679e7375
Summary: Original author: jeffrey-xiao If we are writing a global seqno for an ingested file, the range tombstone metablock gets accessed and put into the cache during ingestion preparation. At the time, the global seqno of the ingested file has not yet been determined, so the cached block will not have a global seqno. When the file is ingested and we read its range tombstone metablock, it will be returned from the cache with no global seqno. In that case, we use the actual seqnos stored in the range tombstones, which are all zero, so the tombstones cover nothing. This commit removes global_seqno_ variable from Block. When iterating over a block, the global seqno for the block is determined by the iterator instead of storing this mutable attribute in Block. Additionally, this commit adds a regression test to check that keys are deleted when ingesting a file with a global seqno and range deletion tombstones. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6429 Differential Revision: D19961563 Pulled By: ajkr fbshipit-source-id: 5cf777397fa3e452401f0bf0364b0750492487b7
525 lines
20 KiB
C++
525 lines
20 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 "table/meta_blocks.h"
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#include <map>
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#include <string>
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#include "block_fetcher.h"
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#include "db/table_properties_collector.h"
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#include "file/random_access_file_reader.h"
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#include "rocksdb/table.h"
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#include "rocksdb/table_properties.h"
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#include "table/block_based/block.h"
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#include "table/format.h"
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#include "table/internal_iterator.h"
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#include "table/persistent_cache_helper.h"
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#include "table/table_properties_internal.h"
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#include "test_util/sync_point.h"
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#include "util/coding.h"
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namespace ROCKSDB_NAMESPACE {
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MetaIndexBuilder::MetaIndexBuilder()
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: meta_index_block_(new BlockBuilder(1 /* restart interval */)) {}
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void MetaIndexBuilder::Add(const std::string& key,
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const BlockHandle& handle) {
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std::string handle_encoding;
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handle.EncodeTo(&handle_encoding);
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meta_block_handles_.insert({key, handle_encoding});
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}
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Slice MetaIndexBuilder::Finish() {
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for (const auto& metablock : meta_block_handles_) {
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meta_index_block_->Add(metablock.first, metablock.second);
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}
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return meta_index_block_->Finish();
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}
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// Property block will be read sequentially and cached in a heap located
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// object, so there's no need for restart points. Thus we set the restart
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// interval to infinity to save space.
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PropertyBlockBuilder::PropertyBlockBuilder()
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: properties_block_(
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new BlockBuilder(port::kMaxInt32 /* restart interval */)) {}
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void PropertyBlockBuilder::Add(const std::string& name,
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const std::string& val) {
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props_.insert({name, val});
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}
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void PropertyBlockBuilder::Add(const std::string& name, uint64_t val) {
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assert(props_.find(name) == props_.end());
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std::string dst;
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PutVarint64(&dst, val);
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Add(name, dst);
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}
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void PropertyBlockBuilder::Add(
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const UserCollectedProperties& user_collected_properties) {
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for (const auto& prop : user_collected_properties) {
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Add(prop.first, prop.second);
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}
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}
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void PropertyBlockBuilder::AddTableProperty(const TableProperties& props) {
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TEST_SYNC_POINT_CALLBACK("PropertyBlockBuilder::AddTableProperty:Start",
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const_cast<TableProperties*>(&props));
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Add(TablePropertiesNames::kRawKeySize, props.raw_key_size);
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Add(TablePropertiesNames::kRawValueSize, props.raw_value_size);
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Add(TablePropertiesNames::kDataSize, props.data_size);
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Add(TablePropertiesNames::kIndexSize, props.index_size);
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if (props.index_partitions != 0) {
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Add(TablePropertiesNames::kIndexPartitions, props.index_partitions);
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Add(TablePropertiesNames::kTopLevelIndexSize, props.top_level_index_size);
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}
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Add(TablePropertiesNames::kIndexKeyIsUserKey, props.index_key_is_user_key);
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Add(TablePropertiesNames::kIndexValueIsDeltaEncoded,
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props.index_value_is_delta_encoded);
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Add(TablePropertiesNames::kNumEntries, props.num_entries);
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Add(TablePropertiesNames::kDeletedKeys, props.num_deletions);
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Add(TablePropertiesNames::kMergeOperands, props.num_merge_operands);
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Add(TablePropertiesNames::kNumRangeDeletions, props.num_range_deletions);
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Add(TablePropertiesNames::kNumDataBlocks, props.num_data_blocks);
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Add(TablePropertiesNames::kFilterSize, props.filter_size);
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Add(TablePropertiesNames::kFormatVersion, props.format_version);
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Add(TablePropertiesNames::kFixedKeyLen, props.fixed_key_len);
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Add(TablePropertiesNames::kColumnFamilyId, props.column_family_id);
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Add(TablePropertiesNames::kCreationTime, props.creation_time);
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Add(TablePropertiesNames::kOldestKeyTime, props.oldest_key_time);
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if (props.file_creation_time > 0) {
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Add(TablePropertiesNames::kFileCreationTime, props.file_creation_time);
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}
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if (!props.filter_policy_name.empty()) {
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Add(TablePropertiesNames::kFilterPolicy, props.filter_policy_name);
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}
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if (!props.comparator_name.empty()) {
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Add(TablePropertiesNames::kComparator, props.comparator_name);
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}
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if (!props.merge_operator_name.empty()) {
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Add(TablePropertiesNames::kMergeOperator, props.merge_operator_name);
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}
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if (!props.prefix_extractor_name.empty()) {
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Add(TablePropertiesNames::kPrefixExtractorName,
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props.prefix_extractor_name);
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}
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if (!props.property_collectors_names.empty()) {
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Add(TablePropertiesNames::kPropertyCollectors,
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props.property_collectors_names);
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}
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if (!props.column_family_name.empty()) {
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Add(TablePropertiesNames::kColumnFamilyName, props.column_family_name);
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}
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if (!props.compression_name.empty()) {
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Add(TablePropertiesNames::kCompression, props.compression_name);
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}
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if (!props.compression_options.empty()) {
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Add(TablePropertiesNames::kCompressionOptions, props.compression_options);
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}
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}
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Slice PropertyBlockBuilder::Finish() {
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for (const auto& prop : props_) {
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properties_block_->Add(prop.first, prop.second);
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}
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return properties_block_->Finish();
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}
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void LogPropertiesCollectionError(
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Logger* info_log, const std::string& method, const std::string& name) {
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assert(method == "Add" || method == "Finish");
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std::string msg =
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"Encountered error when calling TablePropertiesCollector::" +
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method + "() with collector name: " + name;
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ROCKS_LOG_ERROR(info_log, "%s", msg.c_str());
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}
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bool NotifyCollectTableCollectorsOnAdd(
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const Slice& key, const Slice& value, uint64_t file_size,
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const std::vector<std::unique_ptr<IntTblPropCollector>>& collectors,
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Logger* info_log) {
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bool all_succeeded = true;
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for (auto& collector : collectors) {
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Status s = collector->InternalAdd(key, value, file_size);
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all_succeeded = all_succeeded && s.ok();
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if (!s.ok()) {
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LogPropertiesCollectionError(info_log, "Add" /* method */,
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collector->Name());
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}
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}
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return all_succeeded;
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}
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void NotifyCollectTableCollectorsOnBlockAdd(
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const std::vector<std::unique_ptr<IntTblPropCollector>>& collectors,
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const uint64_t blockRawBytes, const uint64_t blockCompressedBytesFast,
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const uint64_t blockCompressedBytesSlow) {
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for (auto& collector : collectors) {
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collector->BlockAdd(blockRawBytes, blockCompressedBytesFast,
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blockCompressedBytesSlow);
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}
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}
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bool NotifyCollectTableCollectorsOnFinish(
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const std::vector<std::unique_ptr<IntTblPropCollector>>& collectors,
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Logger* info_log, PropertyBlockBuilder* builder) {
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bool all_succeeded = true;
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for (auto& collector : collectors) {
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UserCollectedProperties user_collected_properties;
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Status s = collector->Finish(&user_collected_properties);
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all_succeeded = all_succeeded && s.ok();
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if (!s.ok()) {
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LogPropertiesCollectionError(info_log, "Finish" /* method */,
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collector->Name());
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} else {
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builder->Add(user_collected_properties);
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}
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}
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return all_succeeded;
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}
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Status ReadProperties(const Slice& handle_value, RandomAccessFileReader* file,
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FilePrefetchBuffer* prefetch_buffer, const Footer& footer,
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const ImmutableCFOptions& ioptions,
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TableProperties** table_properties, bool verify_checksum,
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BlockHandle* ret_block_handle,
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CacheAllocationPtr* verification_buf,
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bool /*compression_type_missing*/,
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MemoryAllocator* memory_allocator) {
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assert(table_properties);
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Slice v = handle_value;
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BlockHandle handle;
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if (!handle.DecodeFrom(&v).ok()) {
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return Status::InvalidArgument("Failed to decode properties block handle");
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}
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BlockContents block_contents;
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ReadOptions read_options;
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read_options.verify_checksums = verify_checksum;
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Status s;
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PersistentCacheOptions cache_options;
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BlockFetcher block_fetcher(
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file, prefetch_buffer, footer, read_options, handle, &block_contents,
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ioptions, false /* decompress */, false /*maybe_compressed*/,
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BlockType::kProperties, UncompressionDict::GetEmptyDict(), cache_options,
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memory_allocator);
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s = block_fetcher.ReadBlockContents();
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// property block is never compressed. Need to add uncompress logic if we are
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// to compress it..
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if (!s.ok()) {
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return s;
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}
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Block properties_block(std::move(block_contents));
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DataBlockIter iter;
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properties_block.NewDataIterator(BytewiseComparator(), BytewiseComparator(),
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kDisableGlobalSequenceNumber, &iter);
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auto new_table_properties = new TableProperties();
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// All pre-defined properties of type uint64_t
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std::unordered_map<std::string, uint64_t*> predefined_uint64_properties = {
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{TablePropertiesNames::kDataSize, &new_table_properties->data_size},
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{TablePropertiesNames::kIndexSize, &new_table_properties->index_size},
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{TablePropertiesNames::kIndexPartitions,
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&new_table_properties->index_partitions},
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{TablePropertiesNames::kTopLevelIndexSize,
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&new_table_properties->top_level_index_size},
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{TablePropertiesNames::kIndexKeyIsUserKey,
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&new_table_properties->index_key_is_user_key},
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{TablePropertiesNames::kIndexValueIsDeltaEncoded,
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&new_table_properties->index_value_is_delta_encoded},
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{TablePropertiesNames::kFilterSize, &new_table_properties->filter_size},
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{TablePropertiesNames::kRawKeySize, &new_table_properties->raw_key_size},
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{TablePropertiesNames::kRawValueSize,
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&new_table_properties->raw_value_size},
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{TablePropertiesNames::kNumDataBlocks,
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&new_table_properties->num_data_blocks},
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{TablePropertiesNames::kNumEntries, &new_table_properties->num_entries},
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{TablePropertiesNames::kDeletedKeys,
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&new_table_properties->num_deletions},
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{TablePropertiesNames::kMergeOperands,
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&new_table_properties->num_merge_operands},
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{TablePropertiesNames::kNumRangeDeletions,
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&new_table_properties->num_range_deletions},
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{TablePropertiesNames::kFormatVersion,
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&new_table_properties->format_version},
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{TablePropertiesNames::kFixedKeyLen,
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&new_table_properties->fixed_key_len},
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{TablePropertiesNames::kColumnFamilyId,
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&new_table_properties->column_family_id},
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{TablePropertiesNames::kCreationTime,
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&new_table_properties->creation_time},
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{TablePropertiesNames::kOldestKeyTime,
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&new_table_properties->oldest_key_time},
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{TablePropertiesNames::kFileCreationTime,
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&new_table_properties->file_creation_time},
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};
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std::string last_key;
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for (iter.SeekToFirstOrReport(); iter.Valid(); iter.NextOrReport()) {
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s = iter.status();
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if (!s.ok()) {
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break;
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}
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auto key = iter.key().ToString();
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// properties block should be strictly sorted with no duplicate key.
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if (!last_key.empty() &&
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BytewiseComparator()->Compare(key, last_key) <= 0) {
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s = Status::Corruption("properties unsorted");
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break;
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}
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last_key = key;
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auto raw_val = iter.value();
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auto pos = predefined_uint64_properties.find(key);
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new_table_properties->properties_offsets.insert(
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{key, handle.offset() + iter.ValueOffset()});
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if (pos != predefined_uint64_properties.end()) {
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if (key == TablePropertiesNames::kDeletedKeys ||
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key == TablePropertiesNames::kMergeOperands) {
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// Insert in user-collected properties for API backwards compatibility
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new_table_properties->user_collected_properties.insert(
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{key, raw_val.ToString()});
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}
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// handle predefined rocksdb properties
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uint64_t val;
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if (!GetVarint64(&raw_val, &val)) {
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// skip malformed value
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auto error_msg =
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"Detect malformed value in properties meta-block:"
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"\tkey: " + key + "\tval: " + raw_val.ToString();
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ROCKS_LOG_ERROR(ioptions.info_log, "%s", error_msg.c_str());
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continue;
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}
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*(pos->second) = val;
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} else if (key == TablePropertiesNames::kFilterPolicy) {
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new_table_properties->filter_policy_name = raw_val.ToString();
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} else if (key == TablePropertiesNames::kColumnFamilyName) {
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new_table_properties->column_family_name = raw_val.ToString();
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} else if (key == TablePropertiesNames::kComparator) {
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new_table_properties->comparator_name = raw_val.ToString();
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} else if (key == TablePropertiesNames::kMergeOperator) {
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new_table_properties->merge_operator_name = raw_val.ToString();
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} else if (key == TablePropertiesNames::kPrefixExtractorName) {
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new_table_properties->prefix_extractor_name = raw_val.ToString();
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} else if (key == TablePropertiesNames::kPropertyCollectors) {
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new_table_properties->property_collectors_names = raw_val.ToString();
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} else if (key == TablePropertiesNames::kCompression) {
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new_table_properties->compression_name = raw_val.ToString();
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} else if (key == TablePropertiesNames::kCompressionOptions) {
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new_table_properties->compression_options = raw_val.ToString();
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} else {
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// handle user-collected properties
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new_table_properties->user_collected_properties.insert(
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{key, raw_val.ToString()});
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}
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}
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if (s.ok()) {
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*table_properties = new_table_properties;
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if (ret_block_handle != nullptr) {
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*ret_block_handle = handle;
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}
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if (verification_buf != nullptr) {
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size_t len = static_cast<size_t>(handle.size() + kBlockTrailerSize);
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*verification_buf =
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ROCKSDB_NAMESPACE::AllocateBlock(len, memory_allocator);
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if (verification_buf->get() != nullptr) {
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memcpy(verification_buf->get(), block_contents.data.data(), len);
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}
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}
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} else {
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delete new_table_properties;
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}
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return s;
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}
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Status ReadTableProperties(RandomAccessFileReader* file, uint64_t file_size,
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uint64_t table_magic_number,
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const ImmutableCFOptions& ioptions,
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TableProperties** properties,
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bool compression_type_missing,
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MemoryAllocator* memory_allocator) {
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// -- Read metaindex block
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Footer footer;
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auto s = ReadFooterFromFile(file, nullptr /* prefetch_buffer */, file_size,
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&footer, table_magic_number);
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if (!s.ok()) {
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return s;
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}
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auto metaindex_handle = footer.metaindex_handle();
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BlockContents metaindex_contents;
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ReadOptions read_options;
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read_options.verify_checksums = false;
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PersistentCacheOptions cache_options;
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BlockFetcher block_fetcher(
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file, nullptr /* prefetch_buffer */, footer, read_options,
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metaindex_handle, &metaindex_contents, ioptions, false /* decompress */,
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false /*maybe_compressed*/, BlockType::kMetaIndex,
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UncompressionDict::GetEmptyDict(), cache_options, memory_allocator);
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s = block_fetcher.ReadBlockContents();
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if (!s.ok()) {
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return s;
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}
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// property blocks are never compressed. Need to add uncompress logic if we
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// are to compress it.
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Block metaindex_block(std::move(metaindex_contents));
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std::unique_ptr<InternalIterator> meta_iter(metaindex_block.NewDataIterator(
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BytewiseComparator(), BytewiseComparator(),
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kDisableGlobalSequenceNumber));
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// -- Read property block
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bool found_properties_block = true;
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s = SeekToPropertiesBlock(meta_iter.get(), &found_properties_block);
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if (!s.ok()) {
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return s;
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}
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TableProperties table_properties;
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if (found_properties_block == true) {
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s = ReadProperties(
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meta_iter->value(), file, nullptr /* prefetch_buffer */, footer,
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ioptions, properties, false /* verify_checksum */,
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nullptr /* ret_block_hanel */, nullptr /* ret_block_contents */,
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compression_type_missing, memory_allocator);
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} else {
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s = Status::NotFound();
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}
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return s;
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}
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Status FindMetaBlock(InternalIterator* meta_index_iter,
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const std::string& meta_block_name,
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BlockHandle* block_handle) {
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meta_index_iter->Seek(meta_block_name);
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if (meta_index_iter->status().ok() && meta_index_iter->Valid() &&
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meta_index_iter->key() == meta_block_name) {
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Slice v = meta_index_iter->value();
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return block_handle->DecodeFrom(&v);
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} else {
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return Status::Corruption("Cannot find the meta block", meta_block_name);
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}
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}
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Status FindMetaBlock(RandomAccessFileReader* file, uint64_t file_size,
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uint64_t table_magic_number,
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const ImmutableCFOptions& ioptions,
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const std::string& meta_block_name,
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BlockHandle* block_handle,
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bool /*compression_type_missing*/,
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MemoryAllocator* memory_allocator) {
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Footer footer;
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auto s = ReadFooterFromFile(file, nullptr /* prefetch_buffer */, file_size,
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&footer, table_magic_number);
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if (!s.ok()) {
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return s;
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}
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auto metaindex_handle = footer.metaindex_handle();
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BlockContents metaindex_contents;
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ReadOptions read_options;
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read_options.verify_checksums = false;
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PersistentCacheOptions cache_options;
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BlockFetcher block_fetcher(
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file, nullptr /* prefetch_buffer */, footer, read_options,
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metaindex_handle, &metaindex_contents, ioptions,
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false /* do decompression */, false /*maybe_compressed*/,
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BlockType::kMetaIndex, UncompressionDict::GetEmptyDict(), cache_options,
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memory_allocator);
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s = block_fetcher.ReadBlockContents();
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if (!s.ok()) {
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return s;
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}
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// meta blocks are never compressed. Need to add uncompress logic if we are to
|
|
// compress it.
|
|
Block metaindex_block(std::move(metaindex_contents));
|
|
|
|
std::unique_ptr<InternalIterator> meta_iter;
|
|
meta_iter.reset(metaindex_block.NewDataIterator(
|
|
BytewiseComparator(), BytewiseComparator(),
|
|
kDisableGlobalSequenceNumber));
|
|
|
|
return FindMetaBlock(meta_iter.get(), meta_block_name, block_handle);
|
|
}
|
|
|
|
Status ReadMetaBlock(RandomAccessFileReader* file,
|
|
FilePrefetchBuffer* prefetch_buffer, uint64_t file_size,
|
|
uint64_t table_magic_number,
|
|
const ImmutableCFOptions& ioptions,
|
|
const std::string& meta_block_name, BlockType block_type,
|
|
BlockContents* contents, bool /*compression_type_missing*/,
|
|
MemoryAllocator* memory_allocator) {
|
|
Status status;
|
|
Footer footer;
|
|
status = ReadFooterFromFile(file, prefetch_buffer, file_size, &footer,
|
|
table_magic_number);
|
|
if (!status.ok()) {
|
|
return status;
|
|
}
|
|
|
|
// Reading metaindex block
|
|
auto metaindex_handle = footer.metaindex_handle();
|
|
BlockContents metaindex_contents;
|
|
ReadOptions read_options;
|
|
read_options.verify_checksums = false;
|
|
PersistentCacheOptions cache_options;
|
|
|
|
BlockFetcher block_fetcher(
|
|
file, prefetch_buffer, footer, read_options, metaindex_handle,
|
|
&metaindex_contents, ioptions, false /* decompress */,
|
|
false /*maybe_compressed*/, BlockType::kMetaIndex,
|
|
UncompressionDict::GetEmptyDict(), cache_options, memory_allocator);
|
|
status = block_fetcher.ReadBlockContents();
|
|
if (!status.ok()) {
|
|
return status;
|
|
}
|
|
// meta block is never compressed. Need to add uncompress logic if we are to
|
|
// compress it.
|
|
|
|
// Finding metablock
|
|
Block metaindex_block(std::move(metaindex_contents));
|
|
|
|
std::unique_ptr<InternalIterator> meta_iter;
|
|
meta_iter.reset(metaindex_block.NewDataIterator(
|
|
BytewiseComparator(), BytewiseComparator(),
|
|
kDisableGlobalSequenceNumber));
|
|
|
|
BlockHandle block_handle;
|
|
status = FindMetaBlock(meta_iter.get(), meta_block_name, &block_handle);
|
|
|
|
if (!status.ok()) {
|
|
return status;
|
|
}
|
|
|
|
// Reading metablock
|
|
BlockFetcher block_fetcher2(
|
|
file, prefetch_buffer, footer, read_options, block_handle, contents,
|
|
ioptions, false /* decompress */, false /*maybe_compressed*/, block_type,
|
|
UncompressionDict::GetEmptyDict(), cache_options, memory_allocator);
|
|
return block_fetcher2.ReadBlockContents();
|
|
}
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|