fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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950 lines
40 KiB
950 lines
40 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 "table/block_based/block_based_table_factory.h"
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#include <stdint.h>
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#include <cinttypes>
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#include <memory>
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#include <string>
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#include "cache/cache_entry_roles.h"
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#include "logging/logging.h"
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#include "options/options_helper.h"
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#include "port/port.h"
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#include "rocksdb/cache.h"
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#include "rocksdb/convenience.h"
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#include "rocksdb/filter_policy.h"
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#include "rocksdb/flush_block_policy.h"
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#include "rocksdb/rocksdb_namespace.h"
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#include "rocksdb/table.h"
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#include "rocksdb/utilities/options_type.h"
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#include "table/block_based/block_based_table_builder.h"
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#include "table/block_based/block_based_table_reader.h"
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#include "table/format.h"
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#include "util/mutexlock.h"
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#include "util/string_util.h"
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namespace ROCKSDB_NAMESPACE {
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void TailPrefetchStats::RecordEffectiveSize(size_t len) {
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MutexLock l(&mutex_);
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if (num_records_ < kNumTracked) {
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num_records_++;
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}
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records_[next_++] = len;
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if (next_ == kNumTracked) {
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next_ = 0;
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}
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}
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size_t TailPrefetchStats::GetSuggestedPrefetchSize() {
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std::vector<size_t> sorted;
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{
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MutexLock l(&mutex_);
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if (num_records_ == 0) {
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return 0;
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}
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sorted.assign(records_, records_ + num_records_);
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}
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// Of the historic size, we find the maximum one that satisifis the condtiion
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// that if prefetching all, less than 1/8 will be wasted.
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std::sort(sorted.begin(), sorted.end());
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// Assuming we have 5 data points, and after sorting it looks like this:
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//
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// +---+
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// +---+ | |
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// | | | |
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// | | | |
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// | | | |
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// | | | |
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// +---+ | | | |
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// | | | | | |
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// +---+ | | | | | |
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// | | | | | | | |
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// +---+ | | | | | | | |
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// | | | | | | | | | |
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// | | | | | | | | | |
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// | | | | | | | | | |
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// | | | | | | | | | |
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// | | | | | | | | | |
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// +---+ +---+ +---+ +---+ +---+
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//
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// and we use every of the value as a candidate, and estimate how much we
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// wasted, compared to read. For example, when we use the 3rd record
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// as candiate. This area is what we read:
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// +---+
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// +---+ | |
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// | | | |
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// | | | |
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// | | | |
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// | | | |
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// *** *** *** ***+ *** *** *** *** **
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// * | | | | | |
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// +---+ | | | | | *
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// * | | | | | | | |
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// +---+ | | | | | | | *
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// * | | | | X | | | | |
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// | | | | | | | | | *
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// * | | | | | | | | |
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// | | | | | | | | | *
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// * | | | | | | | | |
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// *** *** ***-*** ***--*** ***--*** +****
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// which is (size of the record) X (number of records).
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//
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// While wasted is this area:
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// +---+
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// +---+ | |
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// | | | |
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// | | | |
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// | | | |
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// | | | |
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// *** *** *** ****---+ | | | |
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// * * | | | | |
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// * *-*** *** | | | | |
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// * * | | | | | | |
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// *--** *** | | | | | | |
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// | | | | | X | | | | |
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// | | | | | | | | | |
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// | | | | | | | | | |
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// | | | | | | | | | |
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// | | | | | | | | | |
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// +---+ +---+ +---+ +---+ +---+
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//
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// Which can be calculated iteratively.
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// The difference between wasted using 4st and 3rd record, will
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// be following area:
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// +---+
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// +--+ +-+ ++ +-+ +-+ +---+ | |
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// + xxxxxxxxxxxxxxxxxxxxxxxx | | | |
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// xxxxxxxxxxxxxxxxxxxxxxxx | | | |
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// + xxxxxxxxxxxxxxxxxxxxxxxx | | | |
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// | xxxxxxxxxxxxxxxxxxxxxxxx | | | |
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// +-+ +-+ +-+ ++ +---+ +--+ | | |
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// | | | | | | |
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// +---+ ++ | | | | | |
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// | | | | | | X | | |
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// +---+ ++ | | | | | | | |
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// | | | | | | | | | |
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// | | | | | | | | | |
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// | | | | | | | | | |
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// | | | | | | | | | |
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// | | | | | | | | | |
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// +---+ +---+ +---+ +---+ +---+
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//
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// which will be the size difference between 4st and 3rd record,
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// times 3, which is number of records before the 4st.
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// Here we assume that all data within the prefetch range will be useful. In
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// reality, it may not be the case when a partial block is inside the range,
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// or there are data in the middle that is not read. We ignore those cases
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// for simplicity.
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assert(!sorted.empty());
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size_t prev_size = sorted[0];
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size_t max_qualified_size = sorted[0];
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size_t wasted = 0;
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for (size_t i = 1; i < sorted.size(); i++) {
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size_t read = sorted[i] * sorted.size();
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wasted += (sorted[i] - prev_size) * i;
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if (wasted <= read / 8) {
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max_qualified_size = sorted[i];
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}
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prev_size = sorted[i];
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}
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const size_t kMaxPrefetchSize = 512 * 1024; // Never exceed 512KB
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return std::min(kMaxPrefetchSize, max_qualified_size);
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}
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#ifndef ROCKSDB_LITE
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const std::string kOptNameMetadataCacheOpts = "metadata_cache_options";
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static std::unordered_map<std::string, PinningTier>
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pinning_tier_type_string_map = {
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{"kFallback", PinningTier::kFallback},
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{"kNone", PinningTier::kNone},
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{"kFlushedAndSimilar", PinningTier::kFlushedAndSimilar},
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{"kAll", PinningTier::kAll}};
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static std::unordered_map<std::string, BlockBasedTableOptions::IndexType>
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block_base_table_index_type_string_map = {
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{"kBinarySearch", BlockBasedTableOptions::IndexType::kBinarySearch},
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{"kHashSearch", BlockBasedTableOptions::IndexType::kHashSearch},
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{"kTwoLevelIndexSearch",
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BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch},
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{"kBinarySearchWithFirstKey",
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BlockBasedTableOptions::IndexType::kBinarySearchWithFirstKey}};
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static std::unordered_map<std::string,
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BlockBasedTableOptions::DataBlockIndexType>
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block_base_table_data_block_index_type_string_map = {
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{"kDataBlockBinarySearch",
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BlockBasedTableOptions::DataBlockIndexType::kDataBlockBinarySearch},
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{"kDataBlockBinaryAndHash",
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BlockBasedTableOptions::DataBlockIndexType::kDataBlockBinaryAndHash}};
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static std::unordered_map<std::string,
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BlockBasedTableOptions::IndexShorteningMode>
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block_base_table_index_shortening_mode_string_map = {
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{"kNoShortening",
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BlockBasedTableOptions::IndexShorteningMode::kNoShortening},
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{"kShortenSeparators",
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BlockBasedTableOptions::IndexShorteningMode::kShortenSeparators},
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{"kShortenSeparatorsAndSuccessor",
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BlockBasedTableOptions::IndexShorteningMode::
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kShortenSeparatorsAndSuccessor}};
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static std::unordered_map<std::string, OptionTypeInfo>
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metadata_cache_options_type_info = {
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{"top_level_index_pinning",
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OptionTypeInfo::Enum<PinningTier>(
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offsetof(struct MetadataCacheOptions, top_level_index_pinning),
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&pinning_tier_type_string_map)},
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{"partition_pinning",
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OptionTypeInfo::Enum<PinningTier>(
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offsetof(struct MetadataCacheOptions, partition_pinning),
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&pinning_tier_type_string_map)},
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{"unpartitioned_pinning",
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OptionTypeInfo::Enum<PinningTier>(
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offsetof(struct MetadataCacheOptions, unpartitioned_pinning),
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&pinning_tier_type_string_map)}};
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static std::unordered_map<std::string,
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BlockBasedTableOptions::PrepopulateBlockCache>
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block_base_table_prepopulate_block_cache_string_map = {
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{"kDisable", BlockBasedTableOptions::PrepopulateBlockCache::kDisable},
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{"kFlushOnly",
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BlockBasedTableOptions::PrepopulateBlockCache::kFlushOnly}};
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#endif // ROCKSDB_LITE
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static std::unordered_map<std::string, OptionTypeInfo>
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block_based_table_type_info = {
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#ifndef ROCKSDB_LITE
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/* currently not supported
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std::shared_ptr<Cache> block_cache = nullptr;
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std::shared_ptr<Cache> block_cache_compressed = nullptr;
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*/
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{"flush_block_policy_factory",
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OptionTypeInfo::AsCustomSharedPtr<FlushBlockPolicyFactory>(
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offsetof(struct BlockBasedTableOptions,
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flush_block_policy_factory),
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OptionVerificationType::kByName, OptionTypeFlags::kCompareNever)},
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{"cache_index_and_filter_blocks",
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{offsetof(struct BlockBasedTableOptions,
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cache_index_and_filter_blocks),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"cache_index_and_filter_blocks_with_high_priority",
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{offsetof(struct BlockBasedTableOptions,
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cache_index_and_filter_blocks_with_high_priority),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"pin_l0_filter_and_index_blocks_in_cache",
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{offsetof(struct BlockBasedTableOptions,
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pin_l0_filter_and_index_blocks_in_cache),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"index_type", OptionTypeInfo::Enum<BlockBasedTableOptions::IndexType>(
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offsetof(struct BlockBasedTableOptions, index_type),
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&block_base_table_index_type_string_map)},
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{"hash_index_allow_collision",
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{0, OptionType::kBoolean, OptionVerificationType::kDeprecated,
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OptionTypeFlags::kNone}},
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{"data_block_index_type",
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OptionTypeInfo::Enum<BlockBasedTableOptions::DataBlockIndexType>(
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offsetof(struct BlockBasedTableOptions, data_block_index_type),
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&block_base_table_data_block_index_type_string_map)},
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{"index_shortening",
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OptionTypeInfo::Enum<BlockBasedTableOptions::IndexShorteningMode>(
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offsetof(struct BlockBasedTableOptions, index_shortening),
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&block_base_table_index_shortening_mode_string_map)},
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{"data_block_hash_table_util_ratio",
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{offsetof(struct BlockBasedTableOptions,
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data_block_hash_table_util_ratio),
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OptionType::kDouble, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"checksum",
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{offsetof(struct BlockBasedTableOptions, checksum),
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OptionType::kChecksumType, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"no_block_cache",
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{offsetof(struct BlockBasedTableOptions, no_block_cache),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"block_size",
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{offsetof(struct BlockBasedTableOptions, block_size),
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OptionType::kSizeT, OptionVerificationType::kNormal,
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OptionTypeFlags::kMutable}},
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{"block_size_deviation",
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{offsetof(struct BlockBasedTableOptions, block_size_deviation),
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OptionType::kInt, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"block_restart_interval",
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{offsetof(struct BlockBasedTableOptions, block_restart_interval),
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OptionType::kInt, OptionVerificationType::kNormal,
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OptionTypeFlags::kMutable}},
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{"index_block_restart_interval",
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{offsetof(struct BlockBasedTableOptions, index_block_restart_interval),
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OptionType::kInt, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"index_per_partition",
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{0, OptionType::kUInt64T, OptionVerificationType::kDeprecated,
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OptionTypeFlags::kNone}},
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{"metadata_block_size",
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{offsetof(struct BlockBasedTableOptions, metadata_block_size),
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OptionType::kUInt64T, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"partition_filters",
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{offsetof(struct BlockBasedTableOptions, partition_filters),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"optimize_filters_for_memory",
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{offsetof(struct BlockBasedTableOptions, optimize_filters_for_memory),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"filter_policy",
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OptionTypeInfo::AsCustomSharedPtr<const FilterPolicy>(
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offsetof(struct BlockBasedTableOptions, filter_policy),
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OptionVerificationType::kByNameAllowFromNull,
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OptionTypeFlags::kNone)},
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{"whole_key_filtering",
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{offsetof(struct BlockBasedTableOptions, whole_key_filtering),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"detect_filter_construct_corruption",
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{offsetof(struct BlockBasedTableOptions,
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detect_filter_construct_corruption),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"reserve_table_builder_memory",
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{offsetof(struct BlockBasedTableOptions, reserve_table_builder_memory),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"skip_table_builder_flush",
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{0, OptionType::kBoolean, OptionVerificationType::kDeprecated,
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OptionTypeFlags::kNone}},
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{"format_version",
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{offsetof(struct BlockBasedTableOptions, format_version),
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OptionType::kUInt32T, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"verify_compression",
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{offsetof(struct BlockBasedTableOptions, verify_compression),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"read_amp_bytes_per_bit",
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{offsetof(struct BlockBasedTableOptions, read_amp_bytes_per_bit),
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OptionType::kUInt32T, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone,
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[](const ConfigOptions& /*opts*/, const std::string& /*name*/,
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const std::string& value, void* addr) {
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// A workaround to fix a bug in 6.10, 6.11, 6.12, 6.13
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// and 6.14. The bug will write out 8 bytes to OPTIONS file from the
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// starting address of BlockBasedTableOptions.read_amp_bytes_per_bit
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// which is actually a uint32. Consequently, the value of
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// read_amp_bytes_per_bit written in the OPTIONS file is wrong.
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// From 6.15, RocksDB will try to parse the read_amp_bytes_per_bit
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// from OPTIONS file as a uint32. To be able to load OPTIONS file
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// generated by affected releases before the fix, we need to
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// manually parse read_amp_bytes_per_bit with this special hack.
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uint64_t read_amp_bytes_per_bit = ParseUint64(value);
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*(static_cast<uint32_t*>(addr)) =
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static_cast<uint32_t>(read_amp_bytes_per_bit);
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return Status::OK();
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}}},
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{"enable_index_compression",
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{offsetof(struct BlockBasedTableOptions, enable_index_compression),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"block_align",
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{offsetof(struct BlockBasedTableOptions, block_align),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"pin_top_level_index_and_filter",
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{offsetof(struct BlockBasedTableOptions,
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pin_top_level_index_and_filter),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{kOptNameMetadataCacheOpts,
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OptionTypeInfo::Struct(
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kOptNameMetadataCacheOpts, &metadata_cache_options_type_info,
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offsetof(struct BlockBasedTableOptions, metadata_cache_options),
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OptionVerificationType::kNormal, OptionTypeFlags::kNone)},
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{"block_cache",
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{offsetof(struct BlockBasedTableOptions, block_cache),
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OptionType::kUnknown, OptionVerificationType::kNormal,
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(OptionTypeFlags::kCompareNever | OptionTypeFlags::kDontSerialize),
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// Parses the input vsalue as a Cache
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[](const ConfigOptions& opts, const std::string&,
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const std::string& value, void* addr) {
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auto* cache = static_cast<std::shared_ptr<Cache>*>(addr);
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return Cache::CreateFromString(opts, value, cache);
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}}},
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{"block_cache_compressed",
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{offsetof(struct BlockBasedTableOptions, block_cache_compressed),
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OptionType::kUnknown, OptionVerificationType::kNormal,
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(OptionTypeFlags::kCompareNever | OptionTypeFlags::kDontSerialize),
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// Parses the input vsalue as a Cache
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[](const ConfigOptions& opts, const std::string&,
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const std::string& value, void* addr) {
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auto* cache = static_cast<std::shared_ptr<Cache>*>(addr);
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return Cache::CreateFromString(opts, value, cache);
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}}},
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{"max_auto_readahead_size",
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{offsetof(struct BlockBasedTableOptions, max_auto_readahead_size),
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OptionType::kSizeT, OptionVerificationType::kNormal,
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OptionTypeFlags::kMutable}},
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{"prepopulate_block_cache",
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OptionTypeInfo::Enum<BlockBasedTableOptions::PrepopulateBlockCache>(
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offsetof(struct BlockBasedTableOptions, prepopulate_block_cache),
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&block_base_table_prepopulate_block_cache_string_map,
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OptionTypeFlags::kMutable)},
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#endif // ROCKSDB_LITE
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};
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// TODO(myabandeh): We should return an error instead of silently changing the
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// options
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BlockBasedTableFactory::BlockBasedTableFactory(
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const BlockBasedTableOptions& _table_options)
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: table_options_(_table_options) {
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InitializeOptions();
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RegisterOptions(&table_options_, &block_based_table_type_info);
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}
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void BlockBasedTableFactory::InitializeOptions() {
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if (table_options_.flush_block_policy_factory == nullptr) {
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table_options_.flush_block_policy_factory.reset(
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new FlushBlockBySizePolicyFactory());
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}
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if (table_options_.no_block_cache) {
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table_options_.block_cache.reset();
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} else if (table_options_.block_cache == nullptr) {
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LRUCacheOptions co;
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co.capacity = 8 << 20;
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// It makes little sense to pay overhead for mid-point insertion while the
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// block size is only 8MB.
|
|
co.high_pri_pool_ratio = 0.0;
|
|
table_options_.block_cache = NewLRUCache(co);
|
|
}
|
|
if (table_options_.block_size_deviation < 0 ||
|
|
table_options_.block_size_deviation > 100) {
|
|
table_options_.block_size_deviation = 0;
|
|
}
|
|
if (table_options_.block_restart_interval < 1) {
|
|
table_options_.block_restart_interval = 1;
|
|
}
|
|
if (table_options_.index_block_restart_interval < 1) {
|
|
table_options_.index_block_restart_interval = 1;
|
|
}
|
|
if (table_options_.index_type == BlockBasedTableOptions::kHashSearch &&
|
|
table_options_.index_block_restart_interval != 1) {
|
|
// Currently kHashSearch is incompatible with index_block_restart_interval > 1
|
|
table_options_.index_block_restart_interval = 1;
|
|
}
|
|
if (table_options_.partition_filters &&
|
|
table_options_.index_type !=
|
|
BlockBasedTableOptions::kTwoLevelIndexSearch) {
|
|
// We do not support partitioned filters without partitioning indexes
|
|
table_options_.partition_filters = false;
|
|
}
|
|
}
|
|
|
|
Status BlockBasedTableFactory::PrepareOptions(const ConfigOptions& opts) {
|
|
InitializeOptions();
|
|
return TableFactory::PrepareOptions(opts);
|
|
}
|
|
|
|
namespace {
|
|
// Different cache kinds use the same keys for physically different values, so
|
|
// they must not share an underlying key space with each other.
|
|
Status CheckCacheOptionCompatibility(const BlockBasedTableOptions& bbto) {
|
|
int cache_count = (bbto.block_cache != nullptr) +
|
|
(bbto.block_cache_compressed != nullptr) +
|
|
(bbto.persistent_cache != nullptr);
|
|
if (cache_count <= 1) {
|
|
// Nothing to share / overlap
|
|
return Status::OK();
|
|
}
|
|
|
|
// Simple pointer equality
|
|
if (bbto.block_cache == bbto.block_cache_compressed) {
|
|
return Status::InvalidArgument(
|
|
"block_cache same as block_cache_compressed not currently supported, "
|
|
"and would be bad for performance anyway");
|
|
}
|
|
|
|
// More complex test of shared key space, in case the instances are wrappers
|
|
// for some shared underlying cache.
|
|
std::string sentinel_key(size_t{1}, '\0');
|
|
static char kRegularBlockCacheMarker = 'b';
|
|
static char kCompressedBlockCacheMarker = 'c';
|
|
static char kPersistentCacheMarker = 'p';
|
|
if (bbto.block_cache) {
|
|
bbto.block_cache
|
|
->Insert(Slice(sentinel_key), &kRegularBlockCacheMarker, 1,
|
|
GetNoopDeleterForRole<CacheEntryRole::kMisc>())
|
|
.PermitUncheckedError();
|
|
}
|
|
if (bbto.block_cache_compressed) {
|
|
bbto.block_cache_compressed
|
|
->Insert(Slice(sentinel_key), &kCompressedBlockCacheMarker, 1,
|
|
GetNoopDeleterForRole<CacheEntryRole::kMisc>())
|
|
.PermitUncheckedError();
|
|
}
|
|
if (bbto.persistent_cache) {
|
|
// Note: persistent cache copies the data, not keeping the pointer
|
|
bbto.persistent_cache
|
|
->Insert(Slice(sentinel_key), &kPersistentCacheMarker, 1)
|
|
.PermitUncheckedError();
|
|
}
|
|
// If we get something different from what we inserted, that indicates
|
|
// dangerously overlapping key spaces.
|
|
if (bbto.block_cache) {
|
|
auto handle = bbto.block_cache->Lookup(Slice(sentinel_key));
|
|
if (handle) {
|
|
auto v = static_cast<char*>(bbto.block_cache->Value(handle));
|
|
char c = *v;
|
|
bbto.block_cache->Release(handle);
|
|
if (v == &kCompressedBlockCacheMarker) {
|
|
return Status::InvalidArgument(
|
|
"block_cache and block_cache_compressed share the same key space, "
|
|
"which is not supported");
|
|
} else if (c == kPersistentCacheMarker) {
|
|
return Status::InvalidArgument(
|
|
"block_cache and persistent_cache share the same key space, "
|
|
"which is not supported");
|
|
} else if (v != &kRegularBlockCacheMarker) {
|
|
return Status::Corruption("Unexpected mutation to block_cache");
|
|
}
|
|
}
|
|
}
|
|
if (bbto.block_cache_compressed) {
|
|
auto handle = bbto.block_cache_compressed->Lookup(Slice(sentinel_key));
|
|
if (handle) {
|
|
auto v = static_cast<char*>(bbto.block_cache_compressed->Value(handle));
|
|
char c = *v;
|
|
bbto.block_cache_compressed->Release(handle);
|
|
if (v == &kRegularBlockCacheMarker) {
|
|
return Status::InvalidArgument(
|
|
"block_cache_compressed and block_cache share the same key space, "
|
|
"which is not supported");
|
|
} else if (c == kPersistentCacheMarker) {
|
|
return Status::InvalidArgument(
|
|
"block_cache_compressed and persistent_cache share the same key "
|
|
"space, "
|
|
"which is not supported");
|
|
} else if (v != &kCompressedBlockCacheMarker) {
|
|
return Status::Corruption(
|
|
"Unexpected mutation to block_cache_compressed");
|
|
}
|
|
}
|
|
}
|
|
if (bbto.persistent_cache) {
|
|
std::unique_ptr<char[]> data;
|
|
size_t size = 0;
|
|
bbto.persistent_cache->Lookup(Slice(sentinel_key), &data, &size)
|
|
.PermitUncheckedError();
|
|
if (data && size > 0) {
|
|
if (data[0] == kRegularBlockCacheMarker) {
|
|
return Status::InvalidArgument(
|
|
"persistent_cache and block_cache share the same key space, "
|
|
"which is not supported");
|
|
} else if (data[0] == kCompressedBlockCacheMarker) {
|
|
return Status::InvalidArgument(
|
|
"persistent_cache and block_cache_compressed share the same key "
|
|
"space, "
|
|
"which is not supported");
|
|
} else if (data[0] != kPersistentCacheMarker) {
|
|
return Status::Corruption("Unexpected mutation to persistent_cache");
|
|
}
|
|
}
|
|
}
|
|
return Status::OK();
|
|
}
|
|
|
|
} // namespace
|
|
|
|
Status BlockBasedTableFactory::NewTableReader(
|
|
const ReadOptions& ro, const TableReaderOptions& table_reader_options,
|
|
std::unique_ptr<RandomAccessFileReader>&& file, uint64_t file_size,
|
|
std::unique_ptr<TableReader>* table_reader,
|
|
bool prefetch_index_and_filter_in_cache) const {
|
|
return BlockBasedTable::Open(
|
|
ro, table_reader_options.ioptions, table_reader_options.env_options,
|
|
table_options_, table_reader_options.internal_comparator, std::move(file),
|
|
file_size, table_reader, table_reader_options.prefix_extractor,
|
|
prefetch_index_and_filter_in_cache, table_reader_options.skip_filters,
|
|
table_reader_options.level, table_reader_options.immortal,
|
|
table_reader_options.largest_seqno,
|
|
table_reader_options.force_direct_prefetch, &tail_prefetch_stats_,
|
|
table_reader_options.block_cache_tracer,
|
|
table_reader_options.max_file_size_for_l0_meta_pin,
|
|
table_reader_options.cur_db_session_id,
|
|
table_reader_options.cur_file_num);
|
|
}
|
|
|
|
TableBuilder* BlockBasedTableFactory::NewTableBuilder(
|
|
const TableBuilderOptions& table_builder_options,
|
|
WritableFileWriter* file) const {
|
|
return new BlockBasedTableBuilder(table_options_, table_builder_options,
|
|
file);
|
|
}
|
|
|
|
Status BlockBasedTableFactory::ValidateOptions(
|
|
const DBOptions& db_opts, const ColumnFamilyOptions& cf_opts) const {
|
|
if (table_options_.index_type == BlockBasedTableOptions::kHashSearch &&
|
|
cf_opts.prefix_extractor == nullptr) {
|
|
return Status::InvalidArgument(
|
|
"Hash index is specified for block-based "
|
|
"table, but prefix_extractor is not given");
|
|
}
|
|
if (table_options_.cache_index_and_filter_blocks &&
|
|
table_options_.no_block_cache) {
|
|
return Status::InvalidArgument(
|
|
"Enable cache_index_and_filter_blocks, "
|
|
", but block cache is disabled");
|
|
}
|
|
if (table_options_.pin_l0_filter_and_index_blocks_in_cache &&
|
|
table_options_.no_block_cache) {
|
|
return Status::InvalidArgument(
|
|
"Enable pin_l0_filter_and_index_blocks_in_cache, "
|
|
", but block cache is disabled");
|
|
}
|
|
if (!IsSupportedFormatVersion(table_options_.format_version)) {
|
|
return Status::InvalidArgument(
|
|
"Unsupported BlockBasedTable format_version. Please check "
|
|
"include/rocksdb/table.h for more info");
|
|
}
|
|
if (table_options_.block_align && (cf_opts.compression != kNoCompression)) {
|
|
return Status::InvalidArgument(
|
|
"Enable block_align, but compression "
|
|
"enabled");
|
|
}
|
|
if (table_options_.block_align &&
|
|
(table_options_.block_size & (table_options_.block_size - 1))) {
|
|
return Status::InvalidArgument(
|
|
"Block alignment requested but block size is not a power of 2");
|
|
}
|
|
if (table_options_.block_size > port::kMaxUint32) {
|
|
return Status::InvalidArgument(
|
|
"block size exceeds maximum number (4GiB) allowed");
|
|
}
|
|
if (table_options_.data_block_index_type ==
|
|
BlockBasedTableOptions::kDataBlockBinaryAndHash &&
|
|
table_options_.data_block_hash_table_util_ratio <= 0) {
|
|
return Status::InvalidArgument(
|
|
"data_block_hash_table_util_ratio should be greater than 0 when "
|
|
"data_block_index_type is set to kDataBlockBinaryAndHash");
|
|
}
|
|
if (db_opts.unordered_write && cf_opts.max_successive_merges > 0) {
|
|
// TODO(myabandeh): support it
|
|
return Status::InvalidArgument(
|
|
"max_successive_merges larger than 0 is currently inconsistent with "
|
|
"unordered_write");
|
|
}
|
|
{
|
|
Status s = CheckCacheOptionCompatibility(table_options_);
|
|
if (!s.ok()) {
|
|
return s;
|
|
}
|
|
}
|
|
std::string garbage;
|
|
if (!SerializeEnum<ChecksumType>(checksum_type_string_map,
|
|
table_options_.checksum, &garbage)) {
|
|
return Status::InvalidArgument(
|
|
"Unrecognized ChecksumType for checksum: " +
|
|
ROCKSDB_NAMESPACE::ToString(
|
|
static_cast<uint32_t>(table_options_.checksum)));
|
|
}
|
|
return TableFactory::ValidateOptions(db_opts, cf_opts);
|
|
}
|
|
|
|
std::string BlockBasedTableFactory::GetPrintableOptions() const {
|
|
std::string ret;
|
|
ret.reserve(20000);
|
|
const int kBufferSize = 200;
|
|
char buffer[kBufferSize];
|
|
|
|
snprintf(buffer, kBufferSize, " flush_block_policy_factory: %s (%p)\n",
|
|
table_options_.flush_block_policy_factory->Name(),
|
|
static_cast<void*>(table_options_.flush_block_policy_factory.get()));
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " cache_index_and_filter_blocks: %d\n",
|
|
table_options_.cache_index_and_filter_blocks);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize,
|
|
" cache_index_and_filter_blocks_with_high_priority: %d\n",
|
|
table_options_.cache_index_and_filter_blocks_with_high_priority);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize,
|
|
" pin_l0_filter_and_index_blocks_in_cache: %d\n",
|
|
table_options_.pin_l0_filter_and_index_blocks_in_cache);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " pin_top_level_index_and_filter: %d\n",
|
|
table_options_.pin_top_level_index_and_filter);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " index_type: %d\n",
|
|
table_options_.index_type);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " data_block_index_type: %d\n",
|
|
table_options_.data_block_index_type);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " index_shortening: %d\n",
|
|
static_cast<int>(table_options_.index_shortening));
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " data_block_hash_table_util_ratio: %lf\n",
|
|
table_options_.data_block_hash_table_util_ratio);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " checksum: %d\n", table_options_.checksum);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " no_block_cache: %d\n",
|
|
table_options_.no_block_cache);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " block_cache: %p\n",
|
|
static_cast<void*>(table_options_.block_cache.get()));
|
|
ret.append(buffer);
|
|
if (table_options_.block_cache) {
|
|
const char* block_cache_name = table_options_.block_cache->Name();
|
|
if (block_cache_name != nullptr) {
|
|
snprintf(buffer, kBufferSize, " block_cache_name: %s\n",
|
|
block_cache_name);
|
|
ret.append(buffer);
|
|
}
|
|
ret.append(" block_cache_options:\n");
|
|
ret.append(table_options_.block_cache->GetPrintableOptions());
|
|
}
|
|
snprintf(buffer, kBufferSize, " block_cache_compressed: %p\n",
|
|
static_cast<void*>(table_options_.block_cache_compressed.get()));
|
|
ret.append(buffer);
|
|
if (table_options_.block_cache_compressed) {
|
|
const char* block_cache_compressed_name =
|
|
table_options_.block_cache_compressed->Name();
|
|
if (block_cache_compressed_name != nullptr) {
|
|
snprintf(buffer, kBufferSize, " block_cache_name: %s\n",
|
|
block_cache_compressed_name);
|
|
ret.append(buffer);
|
|
}
|
|
ret.append(" block_cache_compressed_options:\n");
|
|
ret.append(table_options_.block_cache_compressed->GetPrintableOptions());
|
|
}
|
|
snprintf(buffer, kBufferSize, " persistent_cache: %p\n",
|
|
static_cast<void*>(table_options_.persistent_cache.get()));
|
|
ret.append(buffer);
|
|
if (table_options_.persistent_cache) {
|
|
snprintf(buffer, kBufferSize, " persistent_cache_options:\n");
|
|
ret.append(buffer);
|
|
ret.append(table_options_.persistent_cache->GetPrintableOptions());
|
|
}
|
|
snprintf(buffer, kBufferSize, " block_size: %" PRIu64 "\n",
|
|
table_options_.block_size);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " block_size_deviation: %d\n",
|
|
table_options_.block_size_deviation);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " block_restart_interval: %d\n",
|
|
table_options_.block_restart_interval);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " index_block_restart_interval: %d\n",
|
|
table_options_.index_block_restart_interval);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " metadata_block_size: %" PRIu64 "\n",
|
|
table_options_.metadata_block_size);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " partition_filters: %d\n",
|
|
table_options_.partition_filters);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " use_delta_encoding: %d\n",
|
|
table_options_.use_delta_encoding);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " filter_policy: %s\n",
|
|
table_options_.filter_policy == nullptr
|
|
? "nullptr"
|
|
: table_options_.filter_policy->Name());
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " whole_key_filtering: %d\n",
|
|
table_options_.whole_key_filtering);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " verify_compression: %d\n",
|
|
table_options_.verify_compression);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " read_amp_bytes_per_bit: %d\n",
|
|
table_options_.read_amp_bytes_per_bit);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " format_version: %d\n",
|
|
table_options_.format_version);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " enable_index_compression: %d\n",
|
|
table_options_.enable_index_compression);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " block_align: %d\n",
|
|
table_options_.block_align);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize,
|
|
" max_auto_readahead_size: %" ROCKSDB_PRIszt "\n",
|
|
table_options_.max_auto_readahead_size);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " prepopulate_block_cache: %d\n",
|
|
static_cast<int>(table_options_.prepopulate_block_cache));
|
|
ret.append(buffer);
|
|
return ret;
|
|
}
|
|
|
|
const void* BlockBasedTableFactory::GetOptionsPtr(
|
|
const std::string& name) const {
|
|
if (name == kBlockCacheOpts()) {
|
|
if (table_options_.no_block_cache) {
|
|
return nullptr;
|
|
} else {
|
|
return table_options_.block_cache.get();
|
|
}
|
|
} else {
|
|
return TableFactory::GetOptionsPtr(name);
|
|
}
|
|
}
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
// Take a default BlockBasedTableOptions "table_options" in addition to a
|
|
// map "opts_map" of option name to option value to construct the new
|
|
// BlockBasedTableOptions "new_table_options".
|
|
//
|
|
// Below are the instructions of how to config some non-primitive-typed
|
|
// options in BlockBasedTableOptions:
|
|
//
|
|
// * filter_policy:
|
|
// We currently only support the following FilterPolicy in the convenience
|
|
// functions:
|
|
// - BloomFilter: use "bloomfilter:[bits_per_key]:[use_block_based_builder]"
|
|
// to specify BloomFilter. The above string is equivalent to calling
|
|
// NewBloomFilterPolicy(bits_per_key, use_block_based_builder).
|
|
// [Example]:
|
|
// - Pass {"filter_policy", "bloomfilter:4:true"} in
|
|
// GetBlockBasedTableOptionsFromMap to use a BloomFilter with 4-bits
|
|
// per key and use_block_based_builder enabled.
|
|
//
|
|
// * block_cache / block_cache_compressed:
|
|
// We currently only support LRU cache in the GetOptions API. The LRU
|
|
// cache can be set by directly specifying its size.
|
|
// [Example]:
|
|
// - Passing {"block_cache", "1M"} in GetBlockBasedTableOptionsFromMap is
|
|
// equivalent to setting block_cache using NewLRUCache(1024 * 1024).
|
|
//
|
|
// @param table_options the default options of the output "new_table_options".
|
|
// @param opts_map an option name to value map for specifying how
|
|
// "new_table_options" should be set.
|
|
// @param new_table_options the resulting options based on "table_options"
|
|
// with the change specified in "opts_map".
|
|
// @param input_strings_escaped when set to true, each escaped characters
|
|
// prefixed by '\' in the values of the opts_map will be further converted
|
|
// back to the raw string before assigning to the associated options.
|
|
// @param ignore_unknown_options when set to true, unknown options are ignored
|
|
// instead of resulting in an unknown-option error.
|
|
// @return Status::OK() on success. Otherwise, a non-ok status indicating
|
|
// error will be returned, and "new_table_options" will be set to
|
|
// "table_options".
|
|
Status BlockBasedTableFactory::ParseOption(const ConfigOptions& config_options,
|
|
const OptionTypeInfo& opt_info,
|
|
const std::string& opt_name,
|
|
const std::string& opt_value,
|
|
void* opt_ptr) {
|
|
Status status = TableFactory::ParseOption(config_options, opt_info, opt_name,
|
|
opt_value, opt_ptr);
|
|
if (config_options.input_strings_escaped && !status.ok()) { // Got an error
|
|
// !input_strings_escaped indicates the old API, where everything is
|
|
// parsable.
|
|
if (opt_info.IsByName()) {
|
|
status = Status::OK();
|
|
}
|
|
}
|
|
return status;
|
|
}
|
|
|
|
Status GetBlockBasedTableOptionsFromString(
|
|
const BlockBasedTableOptions& table_options, const std::string& opts_str,
|
|
BlockBasedTableOptions* new_table_options) {
|
|
ConfigOptions config_options;
|
|
config_options.input_strings_escaped = false;
|
|
config_options.ignore_unknown_options = false;
|
|
config_options.invoke_prepare_options = false;
|
|
config_options.ignore_unsupported_options = false;
|
|
|
|
return GetBlockBasedTableOptionsFromString(config_options, table_options,
|
|
opts_str, new_table_options);
|
|
}
|
|
Status GetBlockBasedTableOptionsFromString(
|
|
const ConfigOptions& config_options,
|
|
const BlockBasedTableOptions& table_options, const std::string& opts_str,
|
|
BlockBasedTableOptions* new_table_options) {
|
|
std::unordered_map<std::string, std::string> opts_map;
|
|
Status s = StringToMap(opts_str, &opts_map);
|
|
if (!s.ok()) {
|
|
return s;
|
|
}
|
|
s = GetBlockBasedTableOptionsFromMap(config_options, table_options, opts_map,
|
|
new_table_options);
|
|
// Translate any errors (NotFound, NotSupported, to InvalidArgument
|
|
if (s.ok() || s.IsInvalidArgument()) {
|
|
return s;
|
|
} else {
|
|
return Status::InvalidArgument(s.getState());
|
|
}
|
|
}
|
|
|
|
Status GetBlockBasedTableOptionsFromMap(
|
|
const BlockBasedTableOptions& table_options,
|
|
const std::unordered_map<std::string, std::string>& opts_map,
|
|
BlockBasedTableOptions* new_table_options, bool input_strings_escaped,
|
|
bool ignore_unknown_options) {
|
|
ConfigOptions config_options;
|
|
config_options.input_strings_escaped = input_strings_escaped;
|
|
config_options.ignore_unknown_options = ignore_unknown_options;
|
|
config_options.invoke_prepare_options = false;
|
|
|
|
return GetBlockBasedTableOptionsFromMap(config_options, table_options,
|
|
opts_map, new_table_options);
|
|
}
|
|
|
|
Status GetBlockBasedTableOptionsFromMap(
|
|
const ConfigOptions& config_options,
|
|
const BlockBasedTableOptions& table_options,
|
|
const std::unordered_map<std::string, std::string>& opts_map,
|
|
BlockBasedTableOptions* new_table_options) {
|
|
assert(new_table_options);
|
|
BlockBasedTableFactory bbtf(table_options);
|
|
Status s = bbtf.ConfigureFromMap(config_options, opts_map);
|
|
if (s.ok()) {
|
|
*new_table_options = *(bbtf.GetOptions<BlockBasedTableOptions>());
|
|
} else {
|
|
*new_table_options = table_options;
|
|
}
|
|
return s;
|
|
}
|
|
#endif // !ROCKSDB_LITE
|
|
|
|
TableFactory* NewBlockBasedTableFactory(
|
|
const BlockBasedTableOptions& _table_options) {
|
|
return new BlockBasedTableFactory(_table_options);
|
|
}
|
|
|
|
const std::string BlockBasedTablePropertyNames::kIndexType =
|
|
"rocksdb.block.based.table.index.type";
|
|
const std::string BlockBasedTablePropertyNames::kWholeKeyFiltering =
|
|
"rocksdb.block.based.table.whole.key.filtering";
|
|
const std::string BlockBasedTablePropertyNames::kPrefixFiltering =
|
|
"rocksdb.block.based.table.prefix.filtering";
|
|
const std::string kHashIndexPrefixesBlock = "rocksdb.hashindex.prefixes";
|
|
const std::string kHashIndexPrefixesMetadataBlock =
|
|
"rocksdb.hashindex.metadata";
|
|
const std::string kPropTrue = "1";
|
|
const std::string kPropFalse = "0";
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|