mirror of https://github.com/facebook/rocksdb.git
2460 lines
85 KiB
C++
2460 lines
85 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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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 <inttypes.h>
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#include <stdio.h>
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#include <algorithm>
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#include <iostream>
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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#include "db/dbformat.h"
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#include "db/memtable.h"
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#include "db/write_batch_internal.h"
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#include "db/writebuffer.h"
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#include "memtable/stl_wrappers.h"
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#include "rocksdb/cache.h"
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#include "rocksdb/db.h"
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#include "rocksdb/env.h"
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#include "rocksdb/iterator.h"
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#include "rocksdb/memtablerep.h"
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#include "rocksdb/perf_context.h"
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#include "rocksdb/slice_transform.h"
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#include "rocksdb/statistics.h"
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#include "table/block.h"
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#include "table/block_based_table_builder.h"
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#include "table/block_based_table_factory.h"
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#include "table/block_based_table_reader.h"
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#include "table/block_builder.h"
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#include "table/format.h"
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#include "table/get_context.h"
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#include "table/internal_iterator.h"
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#include "table/meta_blocks.h"
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#include "table/plain_table_factory.h"
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#include "table/scoped_arena_iterator.h"
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#include "util/compression.h"
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#include "util/random.h"
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#include "util/statistics.h"
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#include "util/string_util.h"
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#include "util/testharness.h"
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#include "util/testutil.h"
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namespace rocksdb {
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extern const uint64_t kLegacyBlockBasedTableMagicNumber;
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extern const uint64_t kLegacyPlainTableMagicNumber;
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extern const uint64_t kBlockBasedTableMagicNumber;
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extern const uint64_t kPlainTableMagicNumber;
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namespace {
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// Return reverse of "key".
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// Used to test non-lexicographic comparators.
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std::string Reverse(const Slice& key) {
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auto rev = key.ToString();
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std::reverse(rev.begin(), rev.end());
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return rev;
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}
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class ReverseKeyComparator : public Comparator {
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public:
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virtual const char* Name() const override {
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return "rocksdb.ReverseBytewiseComparator";
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}
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virtual int Compare(const Slice& a, const Slice& b) const override {
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return BytewiseComparator()->Compare(Reverse(a), Reverse(b));
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}
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virtual void FindShortestSeparator(std::string* start,
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const Slice& limit) const override {
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std::string s = Reverse(*start);
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std::string l = Reverse(limit);
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BytewiseComparator()->FindShortestSeparator(&s, l);
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*start = Reverse(s);
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}
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virtual void FindShortSuccessor(std::string* key) const override {
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std::string s = Reverse(*key);
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BytewiseComparator()->FindShortSuccessor(&s);
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*key = Reverse(s);
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}
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};
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ReverseKeyComparator reverse_key_comparator;
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void Increment(const Comparator* cmp, std::string* key) {
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if (cmp == BytewiseComparator()) {
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key->push_back('\0');
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} else {
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assert(cmp == &reverse_key_comparator);
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std::string rev = Reverse(*key);
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rev.push_back('\0');
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*key = Reverse(rev);
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}
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}
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} // namespace
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// Helper class for tests to unify the interface between
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// BlockBuilder/TableBuilder and Block/Table.
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class Constructor {
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public:
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explicit Constructor(const Comparator* cmp)
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: data_(stl_wrappers::LessOfComparator(cmp)) {}
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virtual ~Constructor() { }
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void Add(const std::string& key, const Slice& value) {
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data_[key] = value.ToString();
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}
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// Finish constructing the data structure with all the keys that have
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// been added so far. Returns the keys in sorted order in "*keys"
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// and stores the key/value pairs in "*kvmap"
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void Finish(const Options& options, const ImmutableCFOptions& ioptions,
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const BlockBasedTableOptions& table_options,
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const InternalKeyComparator& internal_comparator,
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std::vector<std::string>* keys, stl_wrappers::KVMap* kvmap) {
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last_internal_key_ = &internal_comparator;
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*kvmap = data_;
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keys->clear();
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for (const auto& kv : data_) {
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keys->push_back(kv.first);
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}
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data_.clear();
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Status s = FinishImpl(options, ioptions, table_options,
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internal_comparator, *kvmap);
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ASSERT_TRUE(s.ok()) << s.ToString();
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}
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// Construct the data structure from the data in "data"
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virtual Status FinishImpl(const Options& options,
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const ImmutableCFOptions& ioptions,
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const BlockBasedTableOptions& table_options,
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const InternalKeyComparator& internal_comparator,
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const stl_wrappers::KVMap& data) = 0;
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virtual InternalIterator* NewIterator() const = 0;
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virtual const stl_wrappers::KVMap& data() { return data_; }
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virtual bool IsArenaMode() const { return false; }
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virtual DB* db() const { return nullptr; } // Overridden in DBConstructor
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virtual bool AnywayDeleteIterator() const { return false; }
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protected:
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const InternalKeyComparator* last_internal_key_;
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private:
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stl_wrappers::KVMap data_;
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};
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class BlockConstructor: public Constructor {
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public:
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explicit BlockConstructor(const Comparator* cmp)
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: Constructor(cmp),
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comparator_(cmp),
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block_(nullptr) { }
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~BlockConstructor() {
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delete block_;
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}
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virtual Status FinishImpl(const Options& options,
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const ImmutableCFOptions& ioptions,
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const BlockBasedTableOptions& table_options,
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const InternalKeyComparator& internal_comparator,
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const stl_wrappers::KVMap& kv_map) override {
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delete block_;
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block_ = nullptr;
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BlockBuilder builder(table_options.block_restart_interval);
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for (const auto kv : kv_map) {
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builder.Add(kv.first, kv.second);
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}
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// Open the block
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data_ = builder.Finish().ToString();
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BlockContents contents;
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contents.data = data_;
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contents.cachable = false;
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block_ = new Block(std::move(contents));
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return Status::OK();
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}
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virtual InternalIterator* NewIterator() const override {
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return block_->NewIterator(comparator_);
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}
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private:
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const Comparator* comparator_;
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std::string data_;
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Block* block_;
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BlockConstructor();
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};
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// A helper class that converts internal format keys into user keys
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class KeyConvertingIterator : public InternalIterator {
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public:
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explicit KeyConvertingIterator(InternalIterator* iter,
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bool arena_mode = false)
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: iter_(iter), arena_mode_(arena_mode) {}
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virtual ~KeyConvertingIterator() {
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if (arena_mode_) {
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iter_->~InternalIterator();
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} else {
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delete iter_;
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}
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}
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virtual bool Valid() const override { return iter_->Valid(); }
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virtual void Seek(const Slice& target) override {
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ParsedInternalKey ikey(target, kMaxSequenceNumber, kTypeValue);
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std::string encoded;
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AppendInternalKey(&encoded, ikey);
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iter_->Seek(encoded);
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}
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virtual void SeekToFirst() override { iter_->SeekToFirst(); }
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virtual void SeekToLast() override { iter_->SeekToLast(); }
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virtual void Next() override { iter_->Next(); }
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virtual void Prev() override { iter_->Prev(); }
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virtual Slice key() const override {
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assert(Valid());
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ParsedInternalKey parsed_key;
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if (!ParseInternalKey(iter_->key(), &parsed_key)) {
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status_ = Status::Corruption("malformed internal key");
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return Slice("corrupted key");
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}
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return parsed_key.user_key;
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}
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virtual Slice value() const override { return iter_->value(); }
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virtual Status status() const override {
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return status_.ok() ? iter_->status() : status_;
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}
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private:
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mutable Status status_;
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InternalIterator* iter_;
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bool arena_mode_;
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// No copying allowed
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KeyConvertingIterator(const KeyConvertingIterator&);
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void operator=(const KeyConvertingIterator&);
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};
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class TableConstructor: public Constructor {
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public:
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explicit TableConstructor(const Comparator* cmp,
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bool convert_to_internal_key = false)
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: Constructor(cmp),
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convert_to_internal_key_(convert_to_internal_key) {}
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~TableConstructor() { Reset(); }
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virtual Status FinishImpl(const Options& options,
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const ImmutableCFOptions& ioptions,
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const BlockBasedTableOptions& table_options,
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const InternalKeyComparator& internal_comparator,
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const stl_wrappers::KVMap& kv_map) override {
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Reset();
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soptions.use_mmap_reads = ioptions.allow_mmap_reads;
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file_writer_.reset(test::GetWritableFileWriter(new test::StringSink()));
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unique_ptr<TableBuilder> builder;
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std::vector<std::unique_ptr<IntTblPropCollectorFactory>>
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int_tbl_prop_collector_factories;
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std::string column_family_name;
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builder.reset(ioptions.table_factory->NewTableBuilder(
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TableBuilderOptions(
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ioptions, internal_comparator, &int_tbl_prop_collector_factories,
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options.compression, CompressionOptions(), false /* skip_filters */,
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column_family_name),
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TablePropertiesCollectorFactory::Context::kUnknownColumnFamily,
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file_writer_.get()));
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for (const auto kv : kv_map) {
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if (convert_to_internal_key_) {
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ParsedInternalKey ikey(kv.first, kMaxSequenceNumber, kTypeValue);
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std::string encoded;
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AppendInternalKey(&encoded, ikey);
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builder->Add(encoded, kv.second);
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} else {
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builder->Add(kv.first, kv.second);
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}
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EXPECT_TRUE(builder->status().ok());
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}
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Status s = builder->Finish();
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file_writer_->Flush();
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EXPECT_TRUE(s.ok()) << s.ToString();
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EXPECT_EQ(GetSink()->contents().size(), builder->FileSize());
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// Open the table
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uniq_id_ = cur_uniq_id_++;
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file_reader_.reset(test::GetRandomAccessFileReader(new test::StringSource(
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GetSink()->contents(), uniq_id_, ioptions.allow_mmap_reads)));
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return ioptions.table_factory->NewTableReader(
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TableReaderOptions(ioptions, soptions, internal_comparator),
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std::move(file_reader_), GetSink()->contents().size(), &table_reader_);
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}
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virtual InternalIterator* NewIterator() const override {
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ReadOptions ro;
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InternalIterator* iter = table_reader_->NewIterator(ro);
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if (convert_to_internal_key_) {
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return new KeyConvertingIterator(iter);
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} else {
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return iter;
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}
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}
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uint64_t ApproximateOffsetOf(const Slice& key) const {
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return table_reader_->ApproximateOffsetOf(key);
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}
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virtual Status Reopen(const ImmutableCFOptions& ioptions) {
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file_reader_.reset(test::GetRandomAccessFileReader(new test::StringSource(
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GetSink()->contents(), uniq_id_, ioptions.allow_mmap_reads)));
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return ioptions.table_factory->NewTableReader(
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TableReaderOptions(ioptions, soptions, *last_internal_key_),
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std::move(file_reader_), GetSink()->contents().size(), &table_reader_);
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}
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virtual TableReader* GetTableReader() {
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return table_reader_.get();
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}
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virtual bool AnywayDeleteIterator() const override {
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return convert_to_internal_key_;
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}
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void ResetTableReader() { table_reader_.reset(); }
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private:
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void Reset() {
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uniq_id_ = 0;
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table_reader_.reset();
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file_writer_.reset();
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file_reader_.reset();
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}
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test::StringSink* GetSink() {
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return static_cast<test::StringSink*>(file_writer_->writable_file());
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}
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uint64_t uniq_id_;
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unique_ptr<WritableFileWriter> file_writer_;
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unique_ptr<RandomAccessFileReader> file_reader_;
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unique_ptr<TableReader> table_reader_;
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bool convert_to_internal_key_;
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TableConstructor();
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static uint64_t cur_uniq_id_;
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EnvOptions soptions;
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};
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uint64_t TableConstructor::cur_uniq_id_ = 1;
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class MemTableConstructor: public Constructor {
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public:
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explicit MemTableConstructor(const Comparator* cmp, WriteBuffer* wb)
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: Constructor(cmp),
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internal_comparator_(cmp),
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write_buffer_(wb),
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table_factory_(new SkipListFactory) {
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options_.memtable_factory = table_factory_;
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ImmutableCFOptions ioptions(options_);
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memtable_ = new MemTable(internal_comparator_, ioptions,
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MutableCFOptions(options_, ioptions), wb,
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kMaxSequenceNumber);
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memtable_->Ref();
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}
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~MemTableConstructor() {
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delete memtable_->Unref();
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}
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virtual Status FinishImpl(const Options&, const ImmutableCFOptions& ioptions,
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const BlockBasedTableOptions& table_options,
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const InternalKeyComparator& internal_comparator,
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const stl_wrappers::KVMap& kv_map) override {
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delete memtable_->Unref();
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ImmutableCFOptions mem_ioptions(ioptions);
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memtable_ = new MemTable(internal_comparator_, mem_ioptions,
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MutableCFOptions(options_, mem_ioptions),
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write_buffer_, kMaxSequenceNumber);
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memtable_->Ref();
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int seq = 1;
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for (const auto kv : kv_map) {
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memtable_->Add(seq, kTypeValue, kv.first, kv.second);
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seq++;
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}
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return Status::OK();
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}
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virtual InternalIterator* NewIterator() const override {
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return new KeyConvertingIterator(
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memtable_->NewIterator(ReadOptions(), &arena_), true);
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}
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virtual bool AnywayDeleteIterator() const override { return true; }
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virtual bool IsArenaMode() const override { return true; }
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private:
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mutable Arena arena_;
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InternalKeyComparator internal_comparator_;
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Options options_;
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WriteBuffer* write_buffer_;
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MemTable* memtable_;
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std::shared_ptr<SkipListFactory> table_factory_;
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};
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class InternalIteratorFromIterator : public InternalIterator {
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public:
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explicit InternalIteratorFromIterator(Iterator* it) : it_(it) {}
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virtual bool Valid() const override { return it_->Valid(); }
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virtual void Seek(const Slice& target) override { it_->Seek(target); }
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virtual void SeekToFirst() override { it_->SeekToFirst(); }
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virtual void SeekToLast() override { it_->SeekToLast(); }
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virtual void Next() override { it_->Next(); }
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virtual void Prev() override { it_->Prev(); }
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Slice key() const override { return it_->key(); }
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Slice value() const override { return it_->value(); }
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virtual Status status() const override { return it_->status(); }
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private:
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unique_ptr<Iterator> it_;
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};
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class DBConstructor: public Constructor {
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public:
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explicit DBConstructor(const Comparator* cmp)
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: Constructor(cmp),
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comparator_(cmp) {
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db_ = nullptr;
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NewDB();
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}
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~DBConstructor() {
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delete db_;
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}
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virtual Status FinishImpl(const Options& options,
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const ImmutableCFOptions& ioptions,
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const BlockBasedTableOptions& table_options,
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const InternalKeyComparator& internal_comparator,
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const stl_wrappers::KVMap& kv_map) override {
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delete db_;
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db_ = nullptr;
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NewDB();
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for (const auto kv : kv_map) {
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WriteBatch batch;
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batch.Put(kv.first, kv.second);
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EXPECT_TRUE(db_->Write(WriteOptions(), &batch).ok());
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}
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return Status::OK();
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}
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virtual InternalIterator* NewIterator() const override {
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return new InternalIteratorFromIterator(db_->NewIterator(ReadOptions()));
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}
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virtual DB* db() const override { return db_; }
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private:
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void NewDB() {
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std::string name = test::TmpDir() + "/table_testdb";
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Options options;
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options.comparator = comparator_;
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Status status = DestroyDB(name, options);
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ASSERT_TRUE(status.ok()) << status.ToString();
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options.create_if_missing = true;
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options.error_if_exists = true;
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options.write_buffer_size = 10000; // Something small to force merging
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status = DB::Open(options, name, &db_);
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ASSERT_TRUE(status.ok()) << status.ToString();
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}
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const Comparator* comparator_;
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DB* db_;
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};
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enum TestType {
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BLOCK_BASED_TABLE_TEST,
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#ifndef ROCKSDB_LITE
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PLAIN_TABLE_SEMI_FIXED_PREFIX,
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PLAIN_TABLE_FULL_STR_PREFIX,
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PLAIN_TABLE_TOTAL_ORDER,
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#endif // !ROCKSDB_LITE
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BLOCK_TEST,
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MEMTABLE_TEST,
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DB_TEST
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};
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struct TestArgs {
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TestType type;
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bool reverse_compare;
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int restart_interval;
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CompressionType compression;
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uint32_t format_version;
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bool use_mmap;
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};
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static std::vector<TestArgs> GenerateArgList() {
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std::vector<TestArgs> test_args;
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std::vector<TestType> test_types = {
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BLOCK_BASED_TABLE_TEST,
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#ifndef ROCKSDB_LITE
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PLAIN_TABLE_SEMI_FIXED_PREFIX,
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PLAIN_TABLE_FULL_STR_PREFIX,
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PLAIN_TABLE_TOTAL_ORDER,
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#endif // !ROCKSDB_LITE
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BLOCK_TEST,
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MEMTABLE_TEST, DB_TEST};
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std::vector<bool> reverse_compare_types = {false, true};
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std::vector<int> restart_intervals = {16, 1, 1024};
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|
|
|
// Only add compression if it is supported
|
|
std::vector<std::pair<CompressionType, bool>> compression_types;
|
|
compression_types.emplace_back(kNoCompression, false);
|
|
if (Snappy_Supported()) {
|
|
compression_types.emplace_back(kSnappyCompression, false);
|
|
}
|
|
if (Zlib_Supported()) {
|
|
compression_types.emplace_back(kZlibCompression, false);
|
|
compression_types.emplace_back(kZlibCompression, true);
|
|
}
|
|
if (BZip2_Supported()) {
|
|
compression_types.emplace_back(kBZip2Compression, false);
|
|
compression_types.emplace_back(kBZip2Compression, true);
|
|
}
|
|
if (LZ4_Supported()) {
|
|
compression_types.emplace_back(kLZ4Compression, false);
|
|
compression_types.emplace_back(kLZ4Compression, true);
|
|
compression_types.emplace_back(kLZ4HCCompression, false);
|
|
compression_types.emplace_back(kLZ4HCCompression, true);
|
|
}
|
|
if (ZSTD_Supported()) {
|
|
compression_types.emplace_back(kZSTDNotFinalCompression, false);
|
|
compression_types.emplace_back(kZSTDNotFinalCompression, true);
|
|
}
|
|
|
|
for (auto test_type : test_types) {
|
|
for (auto reverse_compare : reverse_compare_types) {
|
|
#ifndef ROCKSDB_LITE
|
|
if (test_type == PLAIN_TABLE_SEMI_FIXED_PREFIX ||
|
|
test_type == PLAIN_TABLE_FULL_STR_PREFIX ||
|
|
test_type == PLAIN_TABLE_TOTAL_ORDER) {
|
|
// Plain table doesn't use restart index or compression.
|
|
TestArgs one_arg;
|
|
one_arg.type = test_type;
|
|
one_arg.reverse_compare = reverse_compare;
|
|
one_arg.restart_interval = restart_intervals[0];
|
|
one_arg.compression = compression_types[0].first;
|
|
one_arg.use_mmap = true;
|
|
test_args.push_back(one_arg);
|
|
one_arg.use_mmap = false;
|
|
test_args.push_back(one_arg);
|
|
continue;
|
|
}
|
|
#endif // !ROCKSDB_LITE
|
|
|
|
for (auto restart_interval : restart_intervals) {
|
|
for (auto compression_type : compression_types) {
|
|
TestArgs one_arg;
|
|
one_arg.type = test_type;
|
|
one_arg.reverse_compare = reverse_compare;
|
|
one_arg.restart_interval = restart_interval;
|
|
one_arg.compression = compression_type.first;
|
|
one_arg.format_version = compression_type.second ? 2 : 1;
|
|
one_arg.use_mmap = false;
|
|
test_args.push_back(one_arg);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return test_args;
|
|
}
|
|
|
|
// In order to make all tests run for plain table format, including
|
|
// those operating on empty keys, create a new prefix transformer which
|
|
// return fixed prefix if the slice is not shorter than the prefix length,
|
|
// and the full slice if it is shorter.
|
|
class FixedOrLessPrefixTransform : public SliceTransform {
|
|
private:
|
|
const size_t prefix_len_;
|
|
|
|
public:
|
|
explicit FixedOrLessPrefixTransform(size_t prefix_len) :
|
|
prefix_len_(prefix_len) {
|
|
}
|
|
|
|
virtual const char* Name() const override { return "rocksdb.FixedPrefix"; }
|
|
|
|
virtual Slice Transform(const Slice& src) const override {
|
|
assert(InDomain(src));
|
|
if (src.size() < prefix_len_) {
|
|
return src;
|
|
}
|
|
return Slice(src.data(), prefix_len_);
|
|
}
|
|
|
|
virtual bool InDomain(const Slice& src) const override { return true; }
|
|
|
|
virtual bool InRange(const Slice& dst) const override {
|
|
return (dst.size() <= prefix_len_);
|
|
}
|
|
};
|
|
|
|
class HarnessTest : public testing::Test {
|
|
public:
|
|
HarnessTest()
|
|
: ioptions_(options_),
|
|
constructor_(nullptr),
|
|
write_buffer_(options_.db_write_buffer_size) {}
|
|
|
|
void Init(const TestArgs& args) {
|
|
delete constructor_;
|
|
constructor_ = nullptr;
|
|
options_ = Options();
|
|
options_.compression = args.compression;
|
|
// Use shorter block size for tests to exercise block boundary
|
|
// conditions more.
|
|
if (args.reverse_compare) {
|
|
options_.comparator = &reverse_key_comparator;
|
|
}
|
|
|
|
internal_comparator_.reset(
|
|
new test::PlainInternalKeyComparator(options_.comparator));
|
|
|
|
support_prev_ = true;
|
|
only_support_prefix_seek_ = false;
|
|
options_.allow_mmap_reads = args.use_mmap;
|
|
switch (args.type) {
|
|
case BLOCK_BASED_TABLE_TEST:
|
|
table_options_.flush_block_policy_factory.reset(
|
|
new FlushBlockBySizePolicyFactory());
|
|
table_options_.block_size = 256;
|
|
table_options_.block_restart_interval = args.restart_interval;
|
|
table_options_.index_block_restart_interval = args.restart_interval;
|
|
table_options_.format_version = args.format_version;
|
|
options_.table_factory.reset(
|
|
new BlockBasedTableFactory(table_options_));
|
|
constructor_ = new TableConstructor(options_.comparator);
|
|
break;
|
|
// Plain table is not supported in ROCKSDB_LITE
|
|
#ifndef ROCKSDB_LITE
|
|
case PLAIN_TABLE_SEMI_FIXED_PREFIX:
|
|
support_prev_ = false;
|
|
only_support_prefix_seek_ = true;
|
|
options_.prefix_extractor.reset(new FixedOrLessPrefixTransform(2));
|
|
options_.table_factory.reset(NewPlainTableFactory());
|
|
constructor_ = new TableConstructor(options_.comparator, true);
|
|
internal_comparator_.reset(
|
|
new InternalKeyComparator(options_.comparator));
|
|
break;
|
|
case PLAIN_TABLE_FULL_STR_PREFIX:
|
|
support_prev_ = false;
|
|
only_support_prefix_seek_ = true;
|
|
options_.prefix_extractor.reset(NewNoopTransform());
|
|
options_.table_factory.reset(NewPlainTableFactory());
|
|
constructor_ = new TableConstructor(options_.comparator, true);
|
|
internal_comparator_.reset(
|
|
new InternalKeyComparator(options_.comparator));
|
|
break;
|
|
case PLAIN_TABLE_TOTAL_ORDER:
|
|
support_prev_ = false;
|
|
only_support_prefix_seek_ = false;
|
|
options_.prefix_extractor = nullptr;
|
|
|
|
{
|
|
PlainTableOptions plain_table_options;
|
|
plain_table_options.user_key_len = kPlainTableVariableLength;
|
|
plain_table_options.bloom_bits_per_key = 0;
|
|
plain_table_options.hash_table_ratio = 0;
|
|
|
|
options_.table_factory.reset(
|
|
NewPlainTableFactory(plain_table_options));
|
|
}
|
|
constructor_ = new TableConstructor(options_.comparator, true);
|
|
internal_comparator_.reset(
|
|
new InternalKeyComparator(options_.comparator));
|
|
break;
|
|
#endif // !ROCKSDB_LITE
|
|
case BLOCK_TEST:
|
|
table_options_.block_size = 256;
|
|
options_.table_factory.reset(
|
|
new BlockBasedTableFactory(table_options_));
|
|
constructor_ = new BlockConstructor(options_.comparator);
|
|
break;
|
|
case MEMTABLE_TEST:
|
|
table_options_.block_size = 256;
|
|
options_.table_factory.reset(
|
|
new BlockBasedTableFactory(table_options_));
|
|
constructor_ = new MemTableConstructor(options_.comparator,
|
|
&write_buffer_);
|
|
break;
|
|
case DB_TEST:
|
|
table_options_.block_size = 256;
|
|
options_.table_factory.reset(
|
|
new BlockBasedTableFactory(table_options_));
|
|
constructor_ = new DBConstructor(options_.comparator);
|
|
break;
|
|
}
|
|
ioptions_ = ImmutableCFOptions(options_);
|
|
}
|
|
|
|
~HarnessTest() { delete constructor_; }
|
|
|
|
void Add(const std::string& key, const std::string& value) {
|
|
constructor_->Add(key, value);
|
|
}
|
|
|
|
void Test(Random* rnd) {
|
|
std::vector<std::string> keys;
|
|
stl_wrappers::KVMap data;
|
|
constructor_->Finish(options_, ioptions_, table_options_,
|
|
*internal_comparator_, &keys, &data);
|
|
|
|
TestForwardScan(keys, data);
|
|
if (support_prev_) {
|
|
TestBackwardScan(keys, data);
|
|
}
|
|
TestRandomAccess(rnd, keys, data);
|
|
}
|
|
|
|
void TestForwardScan(const std::vector<std::string>& keys,
|
|
const stl_wrappers::KVMap& data) {
|
|
InternalIterator* iter = constructor_->NewIterator();
|
|
ASSERT_TRUE(!iter->Valid());
|
|
iter->SeekToFirst();
|
|
for (stl_wrappers::KVMap::const_iterator model_iter = data.begin();
|
|
model_iter != data.end(); ++model_iter) {
|
|
ASSERT_EQ(ToString(data, model_iter), ToString(iter));
|
|
iter->Next();
|
|
}
|
|
ASSERT_TRUE(!iter->Valid());
|
|
if (constructor_->IsArenaMode() && !constructor_->AnywayDeleteIterator()) {
|
|
iter->~InternalIterator();
|
|
} else {
|
|
delete iter;
|
|
}
|
|
}
|
|
|
|
void TestBackwardScan(const std::vector<std::string>& keys,
|
|
const stl_wrappers::KVMap& data) {
|
|
InternalIterator* iter = constructor_->NewIterator();
|
|
ASSERT_TRUE(!iter->Valid());
|
|
iter->SeekToLast();
|
|
for (stl_wrappers::KVMap::const_reverse_iterator model_iter = data.rbegin();
|
|
model_iter != data.rend(); ++model_iter) {
|
|
ASSERT_EQ(ToString(data, model_iter), ToString(iter));
|
|
iter->Prev();
|
|
}
|
|
ASSERT_TRUE(!iter->Valid());
|
|
if (constructor_->IsArenaMode() && !constructor_->AnywayDeleteIterator()) {
|
|
iter->~InternalIterator();
|
|
} else {
|
|
delete iter;
|
|
}
|
|
}
|
|
|
|
void TestRandomAccess(Random* rnd, const std::vector<std::string>& keys,
|
|
const stl_wrappers::KVMap& data) {
|
|
static const bool kVerbose = false;
|
|
InternalIterator* iter = constructor_->NewIterator();
|
|
ASSERT_TRUE(!iter->Valid());
|
|
stl_wrappers::KVMap::const_iterator model_iter = data.begin();
|
|
if (kVerbose) fprintf(stderr, "---\n");
|
|
for (int i = 0; i < 200; i++) {
|
|
const int toss = rnd->Uniform(support_prev_ ? 5 : 3);
|
|
switch (toss) {
|
|
case 0: {
|
|
if (iter->Valid()) {
|
|
if (kVerbose) fprintf(stderr, "Next\n");
|
|
iter->Next();
|
|
++model_iter;
|
|
ASSERT_EQ(ToString(data, model_iter), ToString(iter));
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 1: {
|
|
if (kVerbose) fprintf(stderr, "SeekToFirst\n");
|
|
iter->SeekToFirst();
|
|
model_iter = data.begin();
|
|
ASSERT_EQ(ToString(data, model_iter), ToString(iter));
|
|
break;
|
|
}
|
|
|
|
case 2: {
|
|
std::string key = PickRandomKey(rnd, keys);
|
|
model_iter = data.lower_bound(key);
|
|
if (kVerbose) fprintf(stderr, "Seek '%s'\n",
|
|
EscapeString(key).c_str());
|
|
iter->Seek(Slice(key));
|
|
ASSERT_EQ(ToString(data, model_iter), ToString(iter));
|
|
break;
|
|
}
|
|
|
|
case 3: {
|
|
if (iter->Valid()) {
|
|
if (kVerbose) fprintf(stderr, "Prev\n");
|
|
iter->Prev();
|
|
if (model_iter == data.begin()) {
|
|
model_iter = data.end(); // Wrap around to invalid value
|
|
} else {
|
|
--model_iter;
|
|
}
|
|
ASSERT_EQ(ToString(data, model_iter), ToString(iter));
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 4: {
|
|
if (kVerbose) fprintf(stderr, "SeekToLast\n");
|
|
iter->SeekToLast();
|
|
if (keys.empty()) {
|
|
model_iter = data.end();
|
|
} else {
|
|
std::string last = data.rbegin()->first;
|
|
model_iter = data.lower_bound(last);
|
|
}
|
|
ASSERT_EQ(ToString(data, model_iter), ToString(iter));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (constructor_->IsArenaMode() && !constructor_->AnywayDeleteIterator()) {
|
|
iter->~InternalIterator();
|
|
} else {
|
|
delete iter;
|
|
}
|
|
}
|
|
|
|
std::string ToString(const stl_wrappers::KVMap& data,
|
|
const stl_wrappers::KVMap::const_iterator& it) {
|
|
if (it == data.end()) {
|
|
return "END";
|
|
} else {
|
|
return "'" + it->first + "->" + it->second + "'";
|
|
}
|
|
}
|
|
|
|
std::string ToString(const stl_wrappers::KVMap& data,
|
|
const stl_wrappers::KVMap::const_reverse_iterator& it) {
|
|
if (it == data.rend()) {
|
|
return "END";
|
|
} else {
|
|
return "'" + it->first + "->" + it->second + "'";
|
|
}
|
|
}
|
|
|
|
std::string ToString(const InternalIterator* it) {
|
|
if (!it->Valid()) {
|
|
return "END";
|
|
} else {
|
|
return "'" + it->key().ToString() + "->" + it->value().ToString() + "'";
|
|
}
|
|
}
|
|
|
|
std::string PickRandomKey(Random* rnd, const std::vector<std::string>& keys) {
|
|
if (keys.empty()) {
|
|
return "foo";
|
|
} else {
|
|
const int index = rnd->Uniform(static_cast<int>(keys.size()));
|
|
std::string result = keys[index];
|
|
switch (rnd->Uniform(support_prev_ ? 3 : 1)) {
|
|
case 0:
|
|
// Return an existing key
|
|
break;
|
|
case 1: {
|
|
// Attempt to return something smaller than an existing key
|
|
if (result.size() > 0 && result[result.size() - 1] > '\0'
|
|
&& (!only_support_prefix_seek_
|
|
|| options_.prefix_extractor->Transform(result).size()
|
|
< result.size())) {
|
|
result[result.size() - 1]--;
|
|
}
|
|
break;
|
|
}
|
|
case 2: {
|
|
// Return something larger than an existing key
|
|
Increment(options_.comparator, &result);
|
|
break;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
}
|
|
|
|
// Returns nullptr if not running against a DB
|
|
DB* db() const { return constructor_->db(); }
|
|
|
|
private:
|
|
Options options_ = Options();
|
|
ImmutableCFOptions ioptions_;
|
|
BlockBasedTableOptions table_options_ = BlockBasedTableOptions();
|
|
Constructor* constructor_;
|
|
WriteBuffer write_buffer_;
|
|
bool support_prev_;
|
|
bool only_support_prefix_seek_;
|
|
shared_ptr<InternalKeyComparator> internal_comparator_;
|
|
};
|
|
|
|
static bool Between(uint64_t val, uint64_t low, uint64_t high) {
|
|
bool result = (val >= low) && (val <= high);
|
|
if (!result) {
|
|
fprintf(stderr, "Value %llu is not in range [%llu, %llu]\n",
|
|
(unsigned long long)(val),
|
|
(unsigned long long)(low),
|
|
(unsigned long long)(high));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// Tests against all kinds of tables
|
|
class TableTest : public testing::Test {
|
|
public:
|
|
const InternalKeyComparator& GetPlainInternalComparator(
|
|
const Comparator* comp) {
|
|
if (!plain_internal_comparator) {
|
|
plain_internal_comparator.reset(
|
|
new test::PlainInternalKeyComparator(comp));
|
|
}
|
|
return *plain_internal_comparator;
|
|
}
|
|
|
|
private:
|
|
std::unique_ptr<InternalKeyComparator> plain_internal_comparator;
|
|
};
|
|
|
|
class GeneralTableTest : public TableTest {};
|
|
class BlockBasedTableTest : public TableTest {};
|
|
class PlainTableTest : public TableTest {};
|
|
class TablePropertyTest : public testing::Test {};
|
|
|
|
// This test serves as the living tutorial for the prefix scan of user collected
|
|
// properties.
|
|
TEST_F(TablePropertyTest, PrefixScanTest) {
|
|
UserCollectedProperties props{{"num.111.1", "1"},
|
|
{"num.111.2", "2"},
|
|
{"num.111.3", "3"},
|
|
{"num.333.1", "1"},
|
|
{"num.333.2", "2"},
|
|
{"num.333.3", "3"},
|
|
{"num.555.1", "1"},
|
|
{"num.555.2", "2"},
|
|
{"num.555.3", "3"}, };
|
|
|
|
// prefixes that exist
|
|
for (const std::string& prefix : {"num.111", "num.333", "num.555"}) {
|
|
int num = 0;
|
|
for (auto pos = props.lower_bound(prefix);
|
|
pos != props.end() &&
|
|
pos->first.compare(0, prefix.size(), prefix) == 0;
|
|
++pos) {
|
|
++num;
|
|
auto key = prefix + "." + ToString(num);
|
|
ASSERT_EQ(key, pos->first);
|
|
ASSERT_EQ(ToString(num), pos->second);
|
|
}
|
|
ASSERT_EQ(3, num);
|
|
}
|
|
|
|
// prefixes that don't exist
|
|
for (const std::string& prefix :
|
|
{"num.000", "num.222", "num.444", "num.666"}) {
|
|
auto pos = props.lower_bound(prefix);
|
|
ASSERT_TRUE(pos == props.end() ||
|
|
pos->first.compare(0, prefix.size(), prefix) != 0);
|
|
}
|
|
}
|
|
|
|
// This test include all the basic checks except those for index size and block
|
|
// size, which will be conducted in separated unit tests.
|
|
TEST_F(BlockBasedTableTest, BasicBlockBasedTableProperties) {
|
|
TableConstructor c(BytewiseComparator());
|
|
|
|
c.Add("a1", "val1");
|
|
c.Add("b2", "val2");
|
|
c.Add("c3", "val3");
|
|
c.Add("d4", "val4");
|
|
c.Add("e5", "val5");
|
|
c.Add("f6", "val6");
|
|
c.Add("g7", "val7");
|
|
c.Add("h8", "val8");
|
|
c.Add("j9", "val9");
|
|
|
|
std::vector<std::string> keys;
|
|
stl_wrappers::KVMap kvmap;
|
|
Options options;
|
|
options.compression = kNoCompression;
|
|
BlockBasedTableOptions table_options;
|
|
table_options.block_restart_interval = 1;
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
const ImmutableCFOptions ioptions(options);
|
|
c.Finish(options, ioptions, table_options,
|
|
GetPlainInternalComparator(options.comparator), &keys, &kvmap);
|
|
|
|
auto& props = *c.GetTableReader()->GetTableProperties();
|
|
ASSERT_EQ(kvmap.size(), props.num_entries);
|
|
|
|
auto raw_key_size = kvmap.size() * 2ul;
|
|
auto raw_value_size = kvmap.size() * 4ul;
|
|
|
|
ASSERT_EQ(raw_key_size, props.raw_key_size);
|
|
ASSERT_EQ(raw_value_size, props.raw_value_size);
|
|
ASSERT_EQ(1ul, props.num_data_blocks);
|
|
ASSERT_EQ("", props.filter_policy_name); // no filter policy is used
|
|
|
|
// Verify data size.
|
|
BlockBuilder block_builder(1);
|
|
for (const auto& item : kvmap) {
|
|
block_builder.Add(item.first, item.second);
|
|
}
|
|
Slice content = block_builder.Finish();
|
|
ASSERT_EQ(content.size() + kBlockTrailerSize, props.data_size);
|
|
c.ResetTableReader();
|
|
}
|
|
|
|
TEST_F(BlockBasedTableTest, FilterPolicyNameProperties) {
|
|
TableConstructor c(BytewiseComparator(), true);
|
|
c.Add("a1", "val1");
|
|
std::vector<std::string> keys;
|
|
stl_wrappers::KVMap kvmap;
|
|
BlockBasedTableOptions table_options;
|
|
table_options.filter_policy.reset(NewBloomFilterPolicy(10));
|
|
Options options;
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
const ImmutableCFOptions ioptions(options);
|
|
c.Finish(options, ioptions, table_options,
|
|
GetPlainInternalComparator(options.comparator), &keys, &kvmap);
|
|
auto& props = *c.GetTableReader()->GetTableProperties();
|
|
ASSERT_EQ("rocksdb.BuiltinBloomFilter", props.filter_policy_name);
|
|
c.ResetTableReader();
|
|
}
|
|
|
|
//
|
|
// BlockBasedTableTest::PrefetchTest
|
|
//
|
|
void AssertKeysInCache(BlockBasedTable* table_reader,
|
|
const std::vector<std::string>& keys_in_cache,
|
|
const std::vector<std::string>& keys_not_in_cache) {
|
|
for (auto key : keys_in_cache) {
|
|
ASSERT_TRUE(table_reader->TEST_KeyInCache(ReadOptions(), key));
|
|
}
|
|
|
|
for (auto key : keys_not_in_cache) {
|
|
ASSERT_TRUE(!table_reader->TEST_KeyInCache(ReadOptions(), key));
|
|
}
|
|
}
|
|
|
|
void PrefetchRange(TableConstructor* c, Options* opt,
|
|
BlockBasedTableOptions* table_options,
|
|
const std::vector<std::string>& keys, const char* key_begin,
|
|
const char* key_end,
|
|
const std::vector<std::string>& keys_in_cache,
|
|
const std::vector<std::string>& keys_not_in_cache,
|
|
const Status expected_status = Status::OK()) {
|
|
// reset the cache and reopen the table
|
|
table_options->block_cache = NewLRUCache(16 * 1024 * 1024, 4);
|
|
opt->table_factory.reset(NewBlockBasedTableFactory(*table_options));
|
|
const ImmutableCFOptions ioptions2(*opt);
|
|
ASSERT_OK(c->Reopen(ioptions2));
|
|
|
|
// prefetch
|
|
auto* table_reader = dynamic_cast<BlockBasedTable*>(c->GetTableReader());
|
|
// empty string replacement is a trick so we don't crash the test
|
|
Slice begin(key_begin ? key_begin : "");
|
|
Slice end(key_end ? key_end : "");
|
|
Status s = table_reader->Prefetch(key_begin ? &begin : nullptr,
|
|
key_end ? &end : nullptr);
|
|
ASSERT_TRUE(s.code() == expected_status.code());
|
|
|
|
// assert our expectation in cache warmup
|
|
AssertKeysInCache(table_reader, keys_in_cache, keys_not_in_cache);
|
|
c->ResetTableReader();
|
|
}
|
|
|
|
TEST_F(BlockBasedTableTest, PrefetchTest) {
|
|
// The purpose of this test is to test the prefetching operation built into
|
|
// BlockBasedTable.
|
|
Options opt;
|
|
unique_ptr<InternalKeyComparator> ikc;
|
|
ikc.reset(new test::PlainInternalKeyComparator(opt.comparator));
|
|
opt.compression = kNoCompression;
|
|
BlockBasedTableOptions table_options;
|
|
table_options.block_size = 1024;
|
|
// big enough so we don't ever lose cached values.
|
|
table_options.block_cache = NewLRUCache(16 * 1024 * 1024, 4);
|
|
opt.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
TableConstructor c(BytewiseComparator());
|
|
c.Add("k01", "hello");
|
|
c.Add("k02", "hello2");
|
|
c.Add("k03", std::string(10000, 'x'));
|
|
c.Add("k04", std::string(200000, 'x'));
|
|
c.Add("k05", std::string(300000, 'x'));
|
|
c.Add("k06", "hello3");
|
|
c.Add("k07", std::string(100000, 'x'));
|
|
std::vector<std::string> keys;
|
|
stl_wrappers::KVMap kvmap;
|
|
const ImmutableCFOptions ioptions(opt);
|
|
c.Finish(opt, ioptions, table_options, *ikc, &keys, &kvmap);
|
|
c.ResetTableReader();
|
|
|
|
// We get the following data spread :
|
|
//
|
|
// Data block Index
|
|
// ========================
|
|
// [ k01 k02 k03 ] k03
|
|
// [ k04 ] k04
|
|
// [ k05 ] k05
|
|
// [ k06 k07 ] k07
|
|
|
|
|
|
// Simple
|
|
PrefetchRange(&c, &opt, &table_options, keys,
|
|
/*key_range=*/ "k01", "k05",
|
|
/*keys_in_cache=*/ {"k01", "k02", "k03", "k04", "k05"},
|
|
/*keys_not_in_cache=*/ {"k06", "k07"});
|
|
PrefetchRange(&c, &opt, &table_options, keys,
|
|
"k01", "k01",
|
|
{"k01", "k02", "k03"},
|
|
{"k04", "k05", "k06", "k07"});
|
|
// odd
|
|
PrefetchRange(&c, &opt, &table_options, keys,
|
|
"a", "z",
|
|
{"k01", "k02", "k03", "k04", "k05", "k06", "k07"},
|
|
{});
|
|
PrefetchRange(&c, &opt, &table_options, keys,
|
|
"k00", "k00",
|
|
{"k01", "k02", "k03"},
|
|
{"k04", "k05", "k06", "k07"});
|
|
// Edge cases
|
|
PrefetchRange(&c, &opt, &table_options, keys,
|
|
"k00", "k06",
|
|
{"k01", "k02", "k03", "k04", "k05", "k06", "k07"},
|
|
{});
|
|
PrefetchRange(&c, &opt, &table_options, keys,
|
|
"k00", "zzz",
|
|
{"k01", "k02", "k03", "k04", "k05", "k06", "k07"},
|
|
{});
|
|
// null keys
|
|
PrefetchRange(&c, &opt, &table_options, keys,
|
|
nullptr, nullptr,
|
|
{"k01", "k02", "k03", "k04", "k05", "k06", "k07"},
|
|
{});
|
|
PrefetchRange(&c, &opt, &table_options, keys,
|
|
"k04", nullptr,
|
|
{"k04", "k05", "k06", "k07"},
|
|
{"k01", "k02", "k03"});
|
|
PrefetchRange(&c, &opt, &table_options, keys,
|
|
nullptr, "k05",
|
|
{"k01", "k02", "k03", "k04", "k05"},
|
|
{"k06", "k07"});
|
|
// invalid
|
|
PrefetchRange(&c, &opt, &table_options, keys,
|
|
"k06", "k00", {}, {},
|
|
Status::InvalidArgument(Slice("k06 "), Slice("k07")));
|
|
c.ResetTableReader();
|
|
}
|
|
|
|
TEST_F(BlockBasedTableTest, TotalOrderSeekOnHashIndex) {
|
|
BlockBasedTableOptions table_options;
|
|
for (int i = 0; i < 4; ++i) {
|
|
Options options;
|
|
// Make each key/value an individual block
|
|
table_options.block_size = 64;
|
|
switch (i) {
|
|
case 0:
|
|
// Binary search index
|
|
table_options.index_type = BlockBasedTableOptions::kBinarySearch;
|
|
options.table_factory.reset(new BlockBasedTableFactory(table_options));
|
|
break;
|
|
case 1:
|
|
// Hash search index
|
|
table_options.index_type = BlockBasedTableOptions::kHashSearch;
|
|
options.table_factory.reset(new BlockBasedTableFactory(table_options));
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(4));
|
|
break;
|
|
case 2:
|
|
// Hash search index with hash_index_allow_collision
|
|
table_options.index_type = BlockBasedTableOptions::kHashSearch;
|
|
table_options.hash_index_allow_collision = true;
|
|
options.table_factory.reset(new BlockBasedTableFactory(table_options));
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(4));
|
|
break;
|
|
case 3:
|
|
default:
|
|
// Hash search index with filter policy
|
|
table_options.index_type = BlockBasedTableOptions::kHashSearch;
|
|
table_options.filter_policy.reset(NewBloomFilterPolicy(10));
|
|
options.table_factory.reset(new BlockBasedTableFactory(table_options));
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(4));
|
|
break;
|
|
}
|
|
|
|
TableConstructor c(BytewiseComparator(), true);
|
|
c.Add("aaaa1", std::string('a', 56));
|
|
c.Add("bbaa1", std::string('a', 56));
|
|
c.Add("cccc1", std::string('a', 56));
|
|
c.Add("bbbb1", std::string('a', 56));
|
|
c.Add("baaa1", std::string('a', 56));
|
|
c.Add("abbb1", std::string('a', 56));
|
|
c.Add("cccc2", std::string('a', 56));
|
|
std::vector<std::string> keys;
|
|
stl_wrappers::KVMap kvmap;
|
|
const ImmutableCFOptions ioptions(options);
|
|
c.Finish(options, ioptions, table_options,
|
|
GetPlainInternalComparator(options.comparator), &keys, &kvmap);
|
|
auto props = c.GetTableReader()->GetTableProperties();
|
|
ASSERT_EQ(7u, props->num_data_blocks);
|
|
auto* reader = c.GetTableReader();
|
|
ReadOptions ro;
|
|
ro.total_order_seek = true;
|
|
std::unique_ptr<InternalIterator> iter(reader->NewIterator(ro));
|
|
|
|
iter->Seek(InternalKey("b", 0, kTypeValue).Encode());
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("baaa1", ExtractUserKey(iter->key()).ToString());
|
|
iter->Next();
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("bbaa1", ExtractUserKey(iter->key()).ToString());
|
|
|
|
iter->Seek(InternalKey("bb", 0, kTypeValue).Encode());
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("bbaa1", ExtractUserKey(iter->key()).ToString());
|
|
iter->Next();
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("bbbb1", ExtractUserKey(iter->key()).ToString());
|
|
|
|
iter->Seek(InternalKey("bbb", 0, kTypeValue).Encode());
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("bbbb1", ExtractUserKey(iter->key()).ToString());
|
|
iter->Next();
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("cccc1", ExtractUserKey(iter->key()).ToString());
|
|
}
|
|
}
|
|
|
|
TEST_F(BlockBasedTableTest, NoopTransformSeek) {
|
|
BlockBasedTableOptions table_options;
|
|
table_options.filter_policy.reset(NewBloomFilterPolicy(10));
|
|
|
|
Options options;
|
|
options.comparator = BytewiseComparator();
|
|
options.table_factory.reset(new BlockBasedTableFactory(table_options));
|
|
options.prefix_extractor.reset(NewNoopTransform());
|
|
|
|
TableConstructor c(options.comparator);
|
|
// To tickle the PrefixMayMatch bug it is important that the
|
|
// user-key is a single byte so that the index key exactly matches
|
|
// the user-key.
|
|
InternalKey key("a", 1, kTypeValue);
|
|
c.Add(key.Encode().ToString(), "b");
|
|
std::vector<std::string> keys;
|
|
stl_wrappers::KVMap kvmap;
|
|
const ImmutableCFOptions ioptions(options);
|
|
const InternalKeyComparator internal_comparator(options.comparator);
|
|
c.Finish(options, ioptions, table_options, internal_comparator, &keys,
|
|
&kvmap);
|
|
|
|
auto* reader = c.GetTableReader();
|
|
for (int i = 0; i < 2; ++i) {
|
|
ReadOptions ro;
|
|
ro.total_order_seek = (i == 0);
|
|
std::unique_ptr<InternalIterator> iter(reader->NewIterator(ro));
|
|
|
|
iter->Seek(key.Encode());
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("a", ExtractUserKey(iter->key()).ToString());
|
|
}
|
|
}
|
|
|
|
static std::string RandomString(Random* rnd, int len) {
|
|
std::string r;
|
|
test::RandomString(rnd, len, &r);
|
|
return r;
|
|
}
|
|
|
|
void AddInternalKey(TableConstructor* c, const std::string& prefix,
|
|
int suffix_len = 800) {
|
|
static Random rnd(1023);
|
|
InternalKey k(prefix + RandomString(&rnd, 800), 0, kTypeValue);
|
|
c->Add(k.Encode().ToString(), "v");
|
|
}
|
|
|
|
TEST_F(TableTest, HashIndexTest) {
|
|
TableConstructor c(BytewiseComparator());
|
|
|
|
// keys with prefix length 3, make sure the key/value is big enough to fill
|
|
// one block
|
|
AddInternalKey(&c, "0015");
|
|
AddInternalKey(&c, "0035");
|
|
|
|
AddInternalKey(&c, "0054");
|
|
AddInternalKey(&c, "0055");
|
|
|
|
AddInternalKey(&c, "0056");
|
|
AddInternalKey(&c, "0057");
|
|
|
|
AddInternalKey(&c, "0058");
|
|
AddInternalKey(&c, "0075");
|
|
|
|
AddInternalKey(&c, "0076");
|
|
AddInternalKey(&c, "0095");
|
|
|
|
std::vector<std::string> keys;
|
|
stl_wrappers::KVMap kvmap;
|
|
Options options;
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(3));
|
|
BlockBasedTableOptions table_options;
|
|
table_options.index_type = BlockBasedTableOptions::kHashSearch;
|
|
table_options.hash_index_allow_collision = true;
|
|
table_options.block_size = 1700;
|
|
table_options.block_cache = NewLRUCache(1024, 4);
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
std::unique_ptr<InternalKeyComparator> comparator(
|
|
new InternalKeyComparator(BytewiseComparator()));
|
|
const ImmutableCFOptions ioptions(options);
|
|
c.Finish(options, ioptions, table_options, *comparator, &keys, &kvmap);
|
|
auto reader = c.GetTableReader();
|
|
|
|
auto props = reader->GetTableProperties();
|
|
ASSERT_EQ(5u, props->num_data_blocks);
|
|
|
|
std::unique_ptr<InternalIterator> hash_iter(
|
|
reader->NewIterator(ReadOptions()));
|
|
|
|
// -- Find keys do not exist, but have common prefix.
|
|
std::vector<std::string> prefixes = {"001", "003", "005", "007", "009"};
|
|
std::vector<std::string> lower_bound = {keys[0], keys[1], keys[2],
|
|
keys[7], keys[9], };
|
|
|
|
// find the lower bound of the prefix
|
|
for (size_t i = 0; i < prefixes.size(); ++i) {
|
|
hash_iter->Seek(InternalKey(prefixes[i], 0, kTypeValue).Encode());
|
|
ASSERT_OK(hash_iter->status());
|
|
ASSERT_TRUE(hash_iter->Valid());
|
|
|
|
// seek the first element in the block
|
|
ASSERT_EQ(lower_bound[i], hash_iter->key().ToString());
|
|
ASSERT_EQ("v", hash_iter->value().ToString());
|
|
}
|
|
|
|
// find the upper bound of prefixes
|
|
std::vector<std::string> upper_bound = {keys[1], keys[2], keys[7], keys[9], };
|
|
|
|
// find existing keys
|
|
for (const auto& item : kvmap) {
|
|
auto ukey = ExtractUserKey(item.first).ToString();
|
|
hash_iter->Seek(ukey);
|
|
|
|
// ASSERT_OK(regular_iter->status());
|
|
ASSERT_OK(hash_iter->status());
|
|
|
|
// ASSERT_TRUE(regular_iter->Valid());
|
|
ASSERT_TRUE(hash_iter->Valid());
|
|
|
|
ASSERT_EQ(item.first, hash_iter->key().ToString());
|
|
ASSERT_EQ(item.second, hash_iter->value().ToString());
|
|
}
|
|
|
|
for (size_t i = 0; i < prefixes.size(); ++i) {
|
|
// the key is greater than any existing keys.
|
|
auto key = prefixes[i] + "9";
|
|
hash_iter->Seek(InternalKey(key, 0, kTypeValue).Encode());
|
|
|
|
ASSERT_OK(hash_iter->status());
|
|
if (i == prefixes.size() - 1) {
|
|
// last key
|
|
ASSERT_TRUE(!hash_iter->Valid());
|
|
} else {
|
|
ASSERT_TRUE(hash_iter->Valid());
|
|
// seek the first element in the block
|
|
ASSERT_EQ(upper_bound[i], hash_iter->key().ToString());
|
|
ASSERT_EQ("v", hash_iter->value().ToString());
|
|
}
|
|
}
|
|
|
|
// find keys with prefix that don't match any of the existing prefixes.
|
|
std::vector<std::string> non_exist_prefixes = {"002", "004", "006", "008"};
|
|
for (const auto& prefix : non_exist_prefixes) {
|
|
hash_iter->Seek(InternalKey(prefix, 0, kTypeValue).Encode());
|
|
// regular_iter->Seek(prefix);
|
|
|
|
ASSERT_OK(hash_iter->status());
|
|
// Seek to non-existing prefixes should yield either invalid, or a
|
|
// key with prefix greater than the target.
|
|
if (hash_iter->Valid()) {
|
|
Slice ukey = ExtractUserKey(hash_iter->key());
|
|
Slice ukey_prefix = options.prefix_extractor->Transform(ukey);
|
|
ASSERT_TRUE(BytewiseComparator()->Compare(prefix, ukey_prefix) < 0);
|
|
}
|
|
}
|
|
c.ResetTableReader();
|
|
}
|
|
|
|
// It's very hard to figure out the index block size of a block accurately.
|
|
// To make sure we get the index size, we just make sure as key number
|
|
// grows, the filter block size also grows.
|
|
TEST_F(BlockBasedTableTest, IndexSizeStat) {
|
|
uint64_t last_index_size = 0;
|
|
|
|
// we need to use random keys since the pure human readable texts
|
|
// may be well compressed, resulting insignifcant change of index
|
|
// block size.
|
|
Random rnd(test::RandomSeed());
|
|
std::vector<std::string> keys;
|
|
|
|
for (int i = 0; i < 100; ++i) {
|
|
keys.push_back(RandomString(&rnd, 10000));
|
|
}
|
|
|
|
// Each time we load one more key to the table. the table index block
|
|
// size is expected to be larger than last time's.
|
|
for (size_t i = 1; i < keys.size(); ++i) {
|
|
TableConstructor c(BytewiseComparator());
|
|
for (size_t j = 0; j < i; ++j) {
|
|
c.Add(keys[j], "val");
|
|
}
|
|
|
|
std::vector<std::string> ks;
|
|
stl_wrappers::KVMap kvmap;
|
|
Options options;
|
|
options.compression = kNoCompression;
|
|
BlockBasedTableOptions table_options;
|
|
table_options.block_restart_interval = 1;
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
const ImmutableCFOptions ioptions(options);
|
|
c.Finish(options, ioptions, table_options,
|
|
GetPlainInternalComparator(options.comparator), &ks, &kvmap);
|
|
auto index_size = c.GetTableReader()->GetTableProperties()->index_size;
|
|
ASSERT_GT(index_size, last_index_size);
|
|
last_index_size = index_size;
|
|
c.ResetTableReader();
|
|
}
|
|
}
|
|
|
|
TEST_F(BlockBasedTableTest, NumBlockStat) {
|
|
Random rnd(test::RandomSeed());
|
|
TableConstructor c(BytewiseComparator());
|
|
Options options;
|
|
options.compression = kNoCompression;
|
|
BlockBasedTableOptions table_options;
|
|
table_options.block_restart_interval = 1;
|
|
table_options.block_size = 1000;
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
for (int i = 0; i < 10; ++i) {
|
|
// the key/val are slightly smaller than block size, so that each block
|
|
// holds roughly one key/value pair.
|
|
c.Add(RandomString(&rnd, 900), "val");
|
|
}
|
|
|
|
std::vector<std::string> ks;
|
|
stl_wrappers::KVMap kvmap;
|
|
const ImmutableCFOptions ioptions(options);
|
|
c.Finish(options, ioptions, table_options,
|
|
GetPlainInternalComparator(options.comparator), &ks, &kvmap);
|
|
ASSERT_EQ(kvmap.size(),
|
|
c.GetTableReader()->GetTableProperties()->num_data_blocks);
|
|
c.ResetTableReader();
|
|
}
|
|
|
|
// A simple tool that takes the snapshot of block cache statistics.
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class BlockCachePropertiesSnapshot {
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public:
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explicit BlockCachePropertiesSnapshot(Statistics* statistics) {
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block_cache_miss = statistics->getTickerCount(BLOCK_CACHE_MISS);
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block_cache_hit = statistics->getTickerCount(BLOCK_CACHE_HIT);
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index_block_cache_miss = statistics->getTickerCount(BLOCK_CACHE_INDEX_MISS);
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index_block_cache_hit = statistics->getTickerCount(BLOCK_CACHE_INDEX_HIT);
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data_block_cache_miss = statistics->getTickerCount(BLOCK_CACHE_DATA_MISS);
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data_block_cache_hit = statistics->getTickerCount(BLOCK_CACHE_DATA_HIT);
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filter_block_cache_miss =
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statistics->getTickerCount(BLOCK_CACHE_FILTER_MISS);
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filter_block_cache_hit = statistics->getTickerCount(BLOCK_CACHE_FILTER_HIT);
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block_cache_bytes_read = statistics->getTickerCount(BLOCK_CACHE_BYTES_READ);
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block_cache_bytes_write =
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statistics->getTickerCount(BLOCK_CACHE_BYTES_WRITE);
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}
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void AssertIndexBlockStat(int64_t expected_index_block_cache_miss,
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int64_t expected_index_block_cache_hit) {
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ASSERT_EQ(expected_index_block_cache_miss, index_block_cache_miss);
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ASSERT_EQ(expected_index_block_cache_hit, index_block_cache_hit);
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}
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void AssertFilterBlockStat(int64_t expected_filter_block_cache_miss,
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int64_t expected_filter_block_cache_hit) {
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ASSERT_EQ(expected_filter_block_cache_miss, filter_block_cache_miss);
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ASSERT_EQ(expected_filter_block_cache_hit, filter_block_cache_hit);
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}
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// Check if the fetched props matches the expected ones.
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// TODO(kailiu) Use this only when you disabled filter policy!
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void AssertEqual(int64_t expected_index_block_cache_miss,
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int64_t expected_index_block_cache_hit,
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int64_t expected_data_block_cache_miss,
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int64_t expected_data_block_cache_hit) const {
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ASSERT_EQ(expected_index_block_cache_miss, index_block_cache_miss);
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ASSERT_EQ(expected_index_block_cache_hit, index_block_cache_hit);
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ASSERT_EQ(expected_data_block_cache_miss, data_block_cache_miss);
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ASSERT_EQ(expected_data_block_cache_hit, data_block_cache_hit);
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ASSERT_EQ(expected_index_block_cache_miss + expected_data_block_cache_miss,
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block_cache_miss);
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ASSERT_EQ(expected_index_block_cache_hit + expected_data_block_cache_hit,
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block_cache_hit);
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}
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int64_t GetCacheBytesRead() { return block_cache_bytes_read; }
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int64_t GetCacheBytesWrite() { return block_cache_bytes_write; }
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private:
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int64_t block_cache_miss = 0;
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int64_t block_cache_hit = 0;
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int64_t index_block_cache_miss = 0;
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int64_t index_block_cache_hit = 0;
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int64_t data_block_cache_miss = 0;
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int64_t data_block_cache_hit = 0;
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int64_t filter_block_cache_miss = 0;
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int64_t filter_block_cache_hit = 0;
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int64_t block_cache_bytes_read = 0;
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int64_t block_cache_bytes_write = 0;
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};
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// Make sure, by default, index/filter blocks were pre-loaded (meaning we won't
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// use block cache to store them).
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TEST_F(BlockBasedTableTest, BlockCacheDisabledTest) {
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Options options;
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options.create_if_missing = true;
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options.statistics = CreateDBStatistics();
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BlockBasedTableOptions table_options;
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table_options.block_cache = NewLRUCache(1024, 4);
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table_options.filter_policy.reset(NewBloomFilterPolicy(10));
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options.table_factory.reset(new BlockBasedTableFactory(table_options));
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std::vector<std::string> keys;
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stl_wrappers::KVMap kvmap;
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TableConstructor c(BytewiseComparator(), true);
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c.Add("key", "value");
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const ImmutableCFOptions ioptions(options);
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c.Finish(options, ioptions, table_options,
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GetPlainInternalComparator(options.comparator), &keys, &kvmap);
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// preloading filter/index blocks is enabled.
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auto reader = dynamic_cast<BlockBasedTable*>(c.GetTableReader());
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ASSERT_TRUE(reader->TEST_filter_block_preloaded());
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ASSERT_TRUE(reader->TEST_index_reader_preloaded());
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{
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// nothing happens in the beginning
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BlockCachePropertiesSnapshot props(options.statistics.get());
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props.AssertIndexBlockStat(0, 0);
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props.AssertFilterBlockStat(0, 0);
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}
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{
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GetContext get_context(options.comparator, nullptr, nullptr, nullptr,
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GetContext::kNotFound, Slice(), nullptr, nullptr,
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nullptr, nullptr);
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// a hack that just to trigger BlockBasedTable::GetFilter.
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reader->Get(ReadOptions(), "non-exist-key", &get_context);
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BlockCachePropertiesSnapshot props(options.statistics.get());
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props.AssertIndexBlockStat(0, 0);
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props.AssertFilterBlockStat(0, 0);
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}
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}
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// Due to the difficulities of the intersaction between statistics, this test
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// only tests the case when "index block is put to block cache"
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TEST_F(BlockBasedTableTest, FilterBlockInBlockCache) {
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// -- Table construction
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Options options;
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options.create_if_missing = true;
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options.statistics = CreateDBStatistics();
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// Enable the cache for index/filter blocks
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BlockBasedTableOptions table_options;
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table_options.block_cache = NewLRUCache(1024, 4);
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table_options.cache_index_and_filter_blocks = true;
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options.table_factory.reset(new BlockBasedTableFactory(table_options));
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std::vector<std::string> keys;
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stl_wrappers::KVMap kvmap;
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TableConstructor c(BytewiseComparator());
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c.Add("key", "value");
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const ImmutableCFOptions ioptions(options);
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c.Finish(options, ioptions, table_options,
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GetPlainInternalComparator(options.comparator), &keys, &kvmap);
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// preloading filter/index blocks is prohibited.
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auto* reader = dynamic_cast<BlockBasedTable*>(c.GetTableReader());
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ASSERT_TRUE(!reader->TEST_filter_block_preloaded());
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ASSERT_TRUE(!reader->TEST_index_reader_preloaded());
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// -- PART 1: Open with regular block cache.
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// Since block_cache is disabled, no cache activities will be involved.
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unique_ptr<InternalIterator> iter;
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int64_t last_cache_bytes_read = 0;
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// At first, no block will be accessed.
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{
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BlockCachePropertiesSnapshot props(options.statistics.get());
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// index will be added to block cache.
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props.AssertEqual(1, // index block miss
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0, 0, 0);
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ASSERT_EQ(props.GetCacheBytesRead(), 0);
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ASSERT_EQ(props.GetCacheBytesWrite(),
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table_options.block_cache->GetUsage());
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last_cache_bytes_read = props.GetCacheBytesRead();
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}
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// Only index block will be accessed
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{
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iter.reset(c.NewIterator());
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BlockCachePropertiesSnapshot props(options.statistics.get());
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// NOTE: to help better highlight the "detla" of each ticker, I use
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// <last_value> + <added_value> to indicate the increment of changed
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// value; other numbers remain the same.
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props.AssertEqual(1, 0 + 1, // index block hit
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0, 0);
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// Cache hit, bytes read from cache should increase
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ASSERT_GT(props.GetCacheBytesRead(), last_cache_bytes_read);
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ASSERT_EQ(props.GetCacheBytesWrite(),
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table_options.block_cache->GetUsage());
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last_cache_bytes_read = props.GetCacheBytesRead();
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}
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// Only data block will be accessed
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{
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iter->SeekToFirst();
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BlockCachePropertiesSnapshot props(options.statistics.get());
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props.AssertEqual(1, 1, 0 + 1, // data block miss
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0);
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// Cache miss, Bytes read from cache should not change
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ASSERT_EQ(props.GetCacheBytesRead(), last_cache_bytes_read);
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ASSERT_EQ(props.GetCacheBytesWrite(),
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table_options.block_cache->GetUsage());
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last_cache_bytes_read = props.GetCacheBytesRead();
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}
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// Data block will be in cache
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{
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iter.reset(c.NewIterator());
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iter->SeekToFirst();
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BlockCachePropertiesSnapshot props(options.statistics.get());
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props.AssertEqual(1, 1 + 1, /* index block hit */
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1, 0 + 1 /* data block hit */);
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// Cache hit, bytes read from cache should increase
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ASSERT_GT(props.GetCacheBytesRead(), last_cache_bytes_read);
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ASSERT_EQ(props.GetCacheBytesWrite(),
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table_options.block_cache->GetUsage());
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last_cache_bytes_read = props.GetCacheBytesRead();
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}
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// release the iterator so that the block cache can reset correctly.
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iter.reset();
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c.ResetTableReader();
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// -- PART 2: Open with very small block cache
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// In this test, no block will ever get hit since the block cache is
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// too small to fit even one entry.
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table_options.block_cache = NewLRUCache(1, 4);
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options.statistics = CreateDBStatistics();
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options.table_factory.reset(new BlockBasedTableFactory(table_options));
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const ImmutableCFOptions ioptions2(options);
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c.Reopen(ioptions2);
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{
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BlockCachePropertiesSnapshot props(options.statistics.get());
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props.AssertEqual(1, // index block miss
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0, 0, 0);
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// Cache miss, Bytes read from cache should not change
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ASSERT_EQ(props.GetCacheBytesRead(), 0);
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}
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{
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// Both index and data block get accessed.
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// It first cache index block then data block. But since the cache size
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// is only 1, index block will be purged after data block is inserted.
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iter.reset(c.NewIterator());
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BlockCachePropertiesSnapshot props(options.statistics.get());
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props.AssertEqual(1 + 1, // index block miss
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0, 0, // data block miss
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0);
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// Cache hit, bytes read from cache should increase
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ASSERT_EQ(props.GetCacheBytesRead(), 0);
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}
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{
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// SeekToFirst() accesses data block. With similar reason, we expect data
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// block's cache miss.
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iter->SeekToFirst();
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BlockCachePropertiesSnapshot props(options.statistics.get());
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props.AssertEqual(2, 0, 0 + 1, // data block miss
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0);
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// Cache miss, Bytes read from cache should not change
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ASSERT_EQ(props.GetCacheBytesRead(), 0);
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}
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iter.reset();
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c.ResetTableReader();
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// -- PART 3: Open table with bloom filter enabled but not in SST file
|
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table_options.block_cache = NewLRUCache(4096, 4);
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table_options.cache_index_and_filter_blocks = false;
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options.table_factory.reset(NewBlockBasedTableFactory(table_options));
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TableConstructor c3(BytewiseComparator());
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std::string user_key = "k01";
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InternalKey internal_key(user_key, 0, kTypeValue);
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c3.Add(internal_key.Encode().ToString(), "hello");
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ImmutableCFOptions ioptions3(options);
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// Generate table without filter policy
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c3.Finish(options, ioptions3, table_options,
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GetPlainInternalComparator(options.comparator), &keys, &kvmap);
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c3.ResetTableReader();
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// Open table with filter policy
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table_options.filter_policy.reset(NewBloomFilterPolicy(1));
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options.table_factory.reset(new BlockBasedTableFactory(table_options));
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options.statistics = CreateDBStatistics();
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ImmutableCFOptions ioptions4(options);
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ASSERT_OK(c3.Reopen(ioptions4));
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reader = dynamic_cast<BlockBasedTable*>(c3.GetTableReader());
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ASSERT_TRUE(!reader->TEST_filter_block_preloaded());
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std::string value;
|
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GetContext get_context(options.comparator, nullptr, nullptr, nullptr,
|
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GetContext::kNotFound, user_key, &value, nullptr,
|
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nullptr, nullptr);
|
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ASSERT_OK(reader->Get(ReadOptions(), user_key, &get_context));
|
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ASSERT_EQ(value, "hello");
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BlockCachePropertiesSnapshot props(options.statistics.get());
|
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props.AssertFilterBlockStat(0, 0);
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c3.ResetTableReader();
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}
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|
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void ValidateBlockSizeDeviation(int value, int expected) {
|
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BlockBasedTableOptions table_options;
|
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table_options.block_size_deviation = value;
|
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BlockBasedTableFactory* factory = new BlockBasedTableFactory(table_options);
|
|
|
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const BlockBasedTableOptions* normalized_table_options =
|
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(const BlockBasedTableOptions*)factory->GetOptions();
|
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ASSERT_EQ(normalized_table_options->block_size_deviation, expected);
|
|
|
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delete factory;
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}
|
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|
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void ValidateBlockRestartInterval(int value, int expected) {
|
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BlockBasedTableOptions table_options;
|
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table_options.block_restart_interval = value;
|
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BlockBasedTableFactory* factory = new BlockBasedTableFactory(table_options);
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|
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const BlockBasedTableOptions* normalized_table_options =
|
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(const BlockBasedTableOptions*)factory->GetOptions();
|
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ASSERT_EQ(normalized_table_options->block_restart_interval, expected);
|
|
|
|
delete factory;
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}
|
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|
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TEST_F(BlockBasedTableTest, InvalidOptions) {
|
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// invalid values for block_size_deviation (<0 or >100) are silently set to 0
|
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ValidateBlockSizeDeviation(-10, 0);
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ValidateBlockSizeDeviation(-1, 0);
|
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ValidateBlockSizeDeviation(0, 0);
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ValidateBlockSizeDeviation(1, 1);
|
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ValidateBlockSizeDeviation(99, 99);
|
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ValidateBlockSizeDeviation(100, 100);
|
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ValidateBlockSizeDeviation(101, 0);
|
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ValidateBlockSizeDeviation(1000, 0);
|
|
|
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// invalid values for block_restart_interval (<1) are silently set to 1
|
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ValidateBlockRestartInterval(-10, 1);
|
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ValidateBlockRestartInterval(-1, 1);
|
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ValidateBlockRestartInterval(0, 1);
|
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ValidateBlockRestartInterval(1, 1);
|
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ValidateBlockRestartInterval(2, 2);
|
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ValidateBlockRestartInterval(1000, 1000);
|
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}
|
|
|
|
TEST_F(BlockBasedTableTest, BlockReadCountTest) {
|
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// bloom_filter_type = 0 -- block-based filter
|
|
// bloom_filter_type = 0 -- full filter
|
|
for (int bloom_filter_type = 0; bloom_filter_type < 2; ++bloom_filter_type) {
|
|
for (int index_and_filter_in_cache = 0; index_and_filter_in_cache < 2;
|
|
++index_and_filter_in_cache) {
|
|
Options options;
|
|
options.create_if_missing = true;
|
|
|
|
BlockBasedTableOptions table_options;
|
|
table_options.block_cache = NewLRUCache(1, 0);
|
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table_options.cache_index_and_filter_blocks = index_and_filter_in_cache;
|
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table_options.filter_policy.reset(
|
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NewBloomFilterPolicy(10, bloom_filter_type == 0));
|
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options.table_factory.reset(new BlockBasedTableFactory(table_options));
|
|
std::vector<std::string> keys;
|
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stl_wrappers::KVMap kvmap;
|
|
|
|
TableConstructor c(BytewiseComparator());
|
|
std::string user_key = "k04";
|
|
InternalKey internal_key(user_key, 0, kTypeValue);
|
|
std::string encoded_key = internal_key.Encode().ToString();
|
|
c.Add(encoded_key, "hello");
|
|
ImmutableCFOptions ioptions(options);
|
|
// Generate table with filter policy
|
|
c.Finish(options, ioptions, table_options,
|
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GetPlainInternalComparator(options.comparator), &keys, &kvmap);
|
|
auto reader = c.GetTableReader();
|
|
std::string value;
|
|
GetContext get_context(options.comparator, nullptr, nullptr, nullptr,
|
|
GetContext::kNotFound, user_key, &value, nullptr,
|
|
nullptr, nullptr);
|
|
perf_context.Reset();
|
|
ASSERT_OK(reader->Get(ReadOptions(), encoded_key, &get_context));
|
|
if (index_and_filter_in_cache) {
|
|
// data, index and filter block
|
|
ASSERT_EQ(perf_context.block_read_count, 3);
|
|
} else {
|
|
// just the data block
|
|
ASSERT_EQ(perf_context.block_read_count, 1);
|
|
}
|
|
ASSERT_EQ(get_context.State(), GetContext::kFound);
|
|
ASSERT_EQ(value, "hello");
|
|
|
|
// Get non-existing key
|
|
user_key = "does-not-exist";
|
|
internal_key = InternalKey(user_key, 0, kTypeValue);
|
|
encoded_key = internal_key.Encode().ToString();
|
|
|
|
get_context = GetContext(options.comparator, nullptr, nullptr, nullptr,
|
|
GetContext::kNotFound, user_key, &value, nullptr,
|
|
nullptr, nullptr);
|
|
perf_context.Reset();
|
|
ASSERT_OK(reader->Get(ReadOptions(), encoded_key, &get_context));
|
|
ASSERT_EQ(get_context.State(), GetContext::kNotFound);
|
|
|
|
if (index_and_filter_in_cache) {
|
|
if (bloom_filter_type == 0) {
|
|
// with block-based, we read index and then the filter
|
|
ASSERT_EQ(perf_context.block_read_count, 2);
|
|
} else {
|
|
// with full-filter, we read filter first and then we stop
|
|
ASSERT_EQ(perf_context.block_read_count, 1);
|
|
}
|
|
} else {
|
|
// filter is already in memory and it figures out that the key doesn't
|
|
// exist
|
|
ASSERT_EQ(perf_context.block_read_count, 0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_F(BlockBasedTableTest, BlockCacheLeak) {
|
|
// Check that when we reopen a table we don't lose access to blocks already
|
|
// in the cache. This test checks whether the Table actually makes use of the
|
|
// unique ID from the file.
|
|
|
|
Options opt;
|
|
unique_ptr<InternalKeyComparator> ikc;
|
|
ikc.reset(new test::PlainInternalKeyComparator(opt.comparator));
|
|
opt.compression = kNoCompression;
|
|
BlockBasedTableOptions table_options;
|
|
table_options.block_size = 1024;
|
|
// big enough so we don't ever lose cached values.
|
|
table_options.block_cache = NewLRUCache(16 * 1024 * 1024, 4);
|
|
opt.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
TableConstructor c(BytewiseComparator());
|
|
c.Add("k01", "hello");
|
|
c.Add("k02", "hello2");
|
|
c.Add("k03", std::string(10000, 'x'));
|
|
c.Add("k04", std::string(200000, 'x'));
|
|
c.Add("k05", std::string(300000, 'x'));
|
|
c.Add("k06", "hello3");
|
|
c.Add("k07", std::string(100000, 'x'));
|
|
std::vector<std::string> keys;
|
|
stl_wrappers::KVMap kvmap;
|
|
const ImmutableCFOptions ioptions(opt);
|
|
c.Finish(opt, ioptions, table_options, *ikc, &keys, &kvmap);
|
|
|
|
unique_ptr<InternalIterator> iter(c.NewIterator());
|
|
iter->SeekToFirst();
|
|
while (iter->Valid()) {
|
|
iter->key();
|
|
iter->value();
|
|
iter->Next();
|
|
}
|
|
ASSERT_OK(iter->status());
|
|
|
|
const ImmutableCFOptions ioptions1(opt);
|
|
ASSERT_OK(c.Reopen(ioptions1));
|
|
auto table_reader = dynamic_cast<BlockBasedTable*>(c.GetTableReader());
|
|
for (const std::string& key : keys) {
|
|
ASSERT_TRUE(table_reader->TEST_KeyInCache(ReadOptions(), key));
|
|
}
|
|
c.ResetTableReader();
|
|
|
|
// rerun with different block cache
|
|
table_options.block_cache = NewLRUCache(16 * 1024 * 1024, 4);
|
|
opt.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
const ImmutableCFOptions ioptions2(opt);
|
|
ASSERT_OK(c.Reopen(ioptions2));
|
|
table_reader = dynamic_cast<BlockBasedTable*>(c.GetTableReader());
|
|
for (const std::string& key : keys) {
|
|
ASSERT_TRUE(!table_reader->TEST_KeyInCache(ReadOptions(), key));
|
|
}
|
|
c.ResetTableReader();
|
|
}
|
|
|
|
// Plain table is not supported in ROCKSDB_LITE
|
|
#ifndef ROCKSDB_LITE
|
|
TEST_F(PlainTableTest, BasicPlainTableProperties) {
|
|
PlainTableOptions plain_table_options;
|
|
plain_table_options.user_key_len = 8;
|
|
plain_table_options.bloom_bits_per_key = 8;
|
|
plain_table_options.hash_table_ratio = 0;
|
|
|
|
PlainTableFactory factory(plain_table_options);
|
|
test::StringSink sink;
|
|
unique_ptr<WritableFileWriter> file_writer(
|
|
test::GetWritableFileWriter(new test::StringSink()));
|
|
Options options;
|
|
const ImmutableCFOptions ioptions(options);
|
|
InternalKeyComparator ikc(options.comparator);
|
|
std::vector<std::unique_ptr<IntTblPropCollectorFactory>>
|
|
int_tbl_prop_collector_factories;
|
|
std::string column_family_name;
|
|
std::unique_ptr<TableBuilder> builder(factory.NewTableBuilder(
|
|
TableBuilderOptions(ioptions, ikc, &int_tbl_prop_collector_factories,
|
|
kNoCompression, CompressionOptions(),
|
|
false /* skip_filters */, column_family_name),
|
|
TablePropertiesCollectorFactory::Context::kUnknownColumnFamily,
|
|
file_writer.get()));
|
|
|
|
for (char c = 'a'; c <= 'z'; ++c) {
|
|
std::string key(8, c);
|
|
key.append("\1 "); // PlainTable expects internal key structure
|
|
std::string value(28, c + 42);
|
|
builder->Add(key, value);
|
|
}
|
|
ASSERT_OK(builder->Finish());
|
|
file_writer->Flush();
|
|
|
|
test::StringSink* ss =
|
|
static_cast<test::StringSink*>(file_writer->writable_file());
|
|
unique_ptr<RandomAccessFileReader> file_reader(
|
|
test::GetRandomAccessFileReader(
|
|
new test::StringSource(ss->contents(), 72242, true)));
|
|
|
|
TableProperties* props = nullptr;
|
|
auto s = ReadTableProperties(file_reader.get(), ss->contents().size(),
|
|
kPlainTableMagicNumber, Env::Default(), nullptr,
|
|
&props);
|
|
std::unique_ptr<TableProperties> props_guard(props);
|
|
ASSERT_OK(s);
|
|
|
|
ASSERT_EQ(0ul, props->index_size);
|
|
ASSERT_EQ(0ul, props->filter_size);
|
|
ASSERT_EQ(16ul * 26, props->raw_key_size);
|
|
ASSERT_EQ(28ul * 26, props->raw_value_size);
|
|
ASSERT_EQ(26ul, props->num_entries);
|
|
ASSERT_EQ(1ul, props->num_data_blocks);
|
|
}
|
|
#endif // !ROCKSDB_LITE
|
|
|
|
TEST_F(GeneralTableTest, ApproximateOffsetOfPlain) {
|
|
TableConstructor c(BytewiseComparator());
|
|
c.Add("k01", "hello");
|
|
c.Add("k02", "hello2");
|
|
c.Add("k03", std::string(10000, 'x'));
|
|
c.Add("k04", std::string(200000, 'x'));
|
|
c.Add("k05", std::string(300000, 'x'));
|
|
c.Add("k06", "hello3");
|
|
c.Add("k07", std::string(100000, 'x'));
|
|
std::vector<std::string> keys;
|
|
stl_wrappers::KVMap kvmap;
|
|
Options options;
|
|
test::PlainInternalKeyComparator internal_comparator(options.comparator);
|
|
options.compression = kNoCompression;
|
|
BlockBasedTableOptions table_options;
|
|
table_options.block_size = 1024;
|
|
const ImmutableCFOptions ioptions(options);
|
|
c.Finish(options, ioptions, table_options, internal_comparator,
|
|
&keys, &kvmap);
|
|
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("abc"), 0, 0));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k01"), 0, 0));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k01a"), 0, 0));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k02"), 0, 0));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k03"), 0, 0));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k04"), 10000, 11000));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k04a"), 210000, 211000));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k05"), 210000, 211000));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k06"), 510000, 511000));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k07"), 510000, 511000));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("xyz"), 610000, 612000));
|
|
c.ResetTableReader();
|
|
}
|
|
|
|
static void DoCompressionTest(CompressionType comp) {
|
|
Random rnd(301);
|
|
TableConstructor c(BytewiseComparator());
|
|
std::string tmp;
|
|
c.Add("k01", "hello");
|
|
c.Add("k02", test::CompressibleString(&rnd, 0.25, 10000, &tmp));
|
|
c.Add("k03", "hello3");
|
|
c.Add("k04", test::CompressibleString(&rnd, 0.25, 10000, &tmp));
|
|
std::vector<std::string> keys;
|
|
stl_wrappers::KVMap kvmap;
|
|
Options options;
|
|
test::PlainInternalKeyComparator ikc(options.comparator);
|
|
options.compression = comp;
|
|
BlockBasedTableOptions table_options;
|
|
table_options.block_size = 1024;
|
|
const ImmutableCFOptions ioptions(options);
|
|
c.Finish(options, ioptions, table_options, ikc, &keys, &kvmap);
|
|
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("abc"), 0, 0));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k01"), 0, 0));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k02"), 0, 0));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k03"), 2000, 3000));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("k04"), 2000, 3000));
|
|
ASSERT_TRUE(Between(c.ApproximateOffsetOf("xyz"), 4000, 6100));
|
|
c.ResetTableReader();
|
|
}
|
|
|
|
TEST_F(GeneralTableTest, ApproximateOffsetOfCompressed) {
|
|
std::vector<CompressionType> compression_state;
|
|
if (!Snappy_Supported()) {
|
|
fprintf(stderr, "skipping snappy compression tests\n");
|
|
} else {
|
|
compression_state.push_back(kSnappyCompression);
|
|
}
|
|
|
|
if (!Zlib_Supported()) {
|
|
fprintf(stderr, "skipping zlib compression tests\n");
|
|
} else {
|
|
compression_state.push_back(kZlibCompression);
|
|
}
|
|
|
|
// TODO(kailiu) DoCompressionTest() doesn't work with BZip2.
|
|
/*
|
|
if (!BZip2_Supported()) {
|
|
fprintf(stderr, "skipping bzip2 compression tests\n");
|
|
} else {
|
|
compression_state.push_back(kBZip2Compression);
|
|
}
|
|
*/
|
|
|
|
if (!LZ4_Supported()) {
|
|
fprintf(stderr, "skipping lz4 and lz4hc compression tests\n");
|
|
} else {
|
|
compression_state.push_back(kLZ4Compression);
|
|
compression_state.push_back(kLZ4HCCompression);
|
|
}
|
|
|
|
for (auto state : compression_state) {
|
|
DoCompressionTest(state);
|
|
}
|
|
}
|
|
|
|
TEST_F(HarnessTest, Randomized) {
|
|
std::vector<TestArgs> args = GenerateArgList();
|
|
for (unsigned int i = 0; i < args.size(); i++) {
|
|
Init(args[i]);
|
|
Random rnd(test::RandomSeed() + 5);
|
|
for (int num_entries = 0; num_entries < 2000;
|
|
num_entries += (num_entries < 50 ? 1 : 200)) {
|
|
if ((num_entries % 10) == 0) {
|
|
fprintf(stderr, "case %d of %d: num_entries = %d\n", (i + 1),
|
|
static_cast<int>(args.size()), num_entries);
|
|
}
|
|
for (int e = 0; e < num_entries; e++) {
|
|
std::string v;
|
|
Add(test::RandomKey(&rnd, rnd.Skewed(4)),
|
|
test::RandomString(&rnd, rnd.Skewed(5), &v).ToString());
|
|
}
|
|
Test(&rnd);
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
TEST_F(HarnessTest, RandomizedLongDB) {
|
|
Random rnd(test::RandomSeed());
|
|
TestArgs args = {DB_TEST, false, 16, kNoCompression, 0, false};
|
|
Init(args);
|
|
int num_entries = 100000;
|
|
for (int e = 0; e < num_entries; e++) {
|
|
std::string v;
|
|
Add(test::RandomKey(&rnd, rnd.Skewed(4)),
|
|
test::RandomString(&rnd, rnd.Skewed(5), &v).ToString());
|
|
}
|
|
Test(&rnd);
|
|
|
|
// We must have created enough data to force merging
|
|
int files = 0;
|
|
for (int level = 0; level < db()->NumberLevels(); level++) {
|
|
std::string value;
|
|
char name[100];
|
|
snprintf(name, sizeof(name), "rocksdb.num-files-at-level%d", level);
|
|
ASSERT_TRUE(db()->GetProperty(name, &value));
|
|
files += atoi(value.c_str());
|
|
}
|
|
ASSERT_GT(files, 0);
|
|
}
|
|
#endif // ROCKSDB_LITE
|
|
|
|
class MemTableTest : public testing::Test {};
|
|
|
|
TEST_F(MemTableTest, Simple) {
|
|
InternalKeyComparator cmp(BytewiseComparator());
|
|
auto table_factory = std::make_shared<SkipListFactory>();
|
|
Options options;
|
|
options.memtable_factory = table_factory;
|
|
ImmutableCFOptions ioptions(options);
|
|
WriteBuffer wb(options.db_write_buffer_size);
|
|
MemTable* memtable =
|
|
new MemTable(cmp, ioptions, MutableCFOptions(options, ioptions), &wb,
|
|
kMaxSequenceNumber);
|
|
memtable->Ref();
|
|
WriteBatch batch;
|
|
WriteBatchInternal::SetSequence(&batch, 100);
|
|
batch.Put(std::string("k1"), std::string("v1"));
|
|
batch.Put(std::string("k2"), std::string("v2"));
|
|
batch.Put(std::string("k3"), std::string("v3"));
|
|
batch.Put(std::string("largekey"), std::string("vlarge"));
|
|
ColumnFamilyMemTablesDefault cf_mems_default(memtable);
|
|
ASSERT_TRUE(
|
|
WriteBatchInternal::InsertInto(&batch, &cf_mems_default, nullptr).ok());
|
|
|
|
Arena arena;
|
|
ScopedArenaIterator iter(memtable->NewIterator(ReadOptions(), &arena));
|
|
iter->SeekToFirst();
|
|
while (iter->Valid()) {
|
|
fprintf(stderr, "key: '%s' -> '%s'\n",
|
|
iter->key().ToString().c_str(),
|
|
iter->value().ToString().c_str());
|
|
iter->Next();
|
|
}
|
|
|
|
delete memtable->Unref();
|
|
}
|
|
|
|
// Test the empty key
|
|
TEST_F(HarnessTest, SimpleEmptyKey) {
|
|
auto args = GenerateArgList();
|
|
for (const auto& arg : args) {
|
|
Init(arg);
|
|
Random rnd(test::RandomSeed() + 1);
|
|
Add("", "v");
|
|
Test(&rnd);
|
|
}
|
|
}
|
|
|
|
TEST_F(HarnessTest, SimpleSingle) {
|
|
auto args = GenerateArgList();
|
|
for (const auto& arg : args) {
|
|
Init(arg);
|
|
Random rnd(test::RandomSeed() + 2);
|
|
Add("abc", "v");
|
|
Test(&rnd);
|
|
}
|
|
}
|
|
|
|
TEST_F(HarnessTest, SimpleMulti) {
|
|
auto args = GenerateArgList();
|
|
for (const auto& arg : args) {
|
|
Init(arg);
|
|
Random rnd(test::RandomSeed() + 3);
|
|
Add("abc", "v");
|
|
Add("abcd", "v");
|
|
Add("ac", "v2");
|
|
Test(&rnd);
|
|
}
|
|
}
|
|
|
|
TEST_F(HarnessTest, SimpleSpecialKey) {
|
|
auto args = GenerateArgList();
|
|
for (const auto& arg : args) {
|
|
Init(arg);
|
|
Random rnd(test::RandomSeed() + 4);
|
|
Add("\xff\xff", "v3");
|
|
Test(&rnd);
|
|
}
|
|
}
|
|
|
|
TEST_F(HarnessTest, FooterTests) {
|
|
{
|
|
// upconvert legacy block based
|
|
std::string encoded;
|
|
Footer footer(kLegacyBlockBasedTableMagicNumber, 0);
|
|
BlockHandle meta_index(10, 5), index(20, 15);
|
|
footer.set_metaindex_handle(meta_index);
|
|
footer.set_index_handle(index);
|
|
footer.EncodeTo(&encoded);
|
|
Footer decoded_footer;
|
|
Slice encoded_slice(encoded);
|
|
decoded_footer.DecodeFrom(&encoded_slice);
|
|
ASSERT_EQ(decoded_footer.table_magic_number(), kBlockBasedTableMagicNumber);
|
|
ASSERT_EQ(decoded_footer.checksum(), kCRC32c);
|
|
ASSERT_EQ(decoded_footer.metaindex_handle().offset(), meta_index.offset());
|
|
ASSERT_EQ(decoded_footer.metaindex_handle().size(), meta_index.size());
|
|
ASSERT_EQ(decoded_footer.index_handle().offset(), index.offset());
|
|
ASSERT_EQ(decoded_footer.index_handle().size(), index.size());
|
|
ASSERT_EQ(decoded_footer.version(), 0U);
|
|
}
|
|
{
|
|
// xxhash block based
|
|
std::string encoded;
|
|
Footer footer(kBlockBasedTableMagicNumber, 1);
|
|
BlockHandle meta_index(10, 5), index(20, 15);
|
|
footer.set_metaindex_handle(meta_index);
|
|
footer.set_index_handle(index);
|
|
footer.set_checksum(kxxHash);
|
|
footer.EncodeTo(&encoded);
|
|
Footer decoded_footer;
|
|
Slice encoded_slice(encoded);
|
|
decoded_footer.DecodeFrom(&encoded_slice);
|
|
ASSERT_EQ(decoded_footer.table_magic_number(), kBlockBasedTableMagicNumber);
|
|
ASSERT_EQ(decoded_footer.checksum(), kxxHash);
|
|
ASSERT_EQ(decoded_footer.metaindex_handle().offset(), meta_index.offset());
|
|
ASSERT_EQ(decoded_footer.metaindex_handle().size(), meta_index.size());
|
|
ASSERT_EQ(decoded_footer.index_handle().offset(), index.offset());
|
|
ASSERT_EQ(decoded_footer.index_handle().size(), index.size());
|
|
ASSERT_EQ(decoded_footer.version(), 1U);
|
|
}
|
|
// Plain table is not supported in ROCKSDB_LITE
|
|
#ifndef ROCKSDB_LITE
|
|
{
|
|
// upconvert legacy plain table
|
|
std::string encoded;
|
|
Footer footer(kLegacyPlainTableMagicNumber, 0);
|
|
BlockHandle meta_index(10, 5), index(20, 15);
|
|
footer.set_metaindex_handle(meta_index);
|
|
footer.set_index_handle(index);
|
|
footer.EncodeTo(&encoded);
|
|
Footer decoded_footer;
|
|
Slice encoded_slice(encoded);
|
|
decoded_footer.DecodeFrom(&encoded_slice);
|
|
ASSERT_EQ(decoded_footer.table_magic_number(), kPlainTableMagicNumber);
|
|
ASSERT_EQ(decoded_footer.checksum(), kCRC32c);
|
|
ASSERT_EQ(decoded_footer.metaindex_handle().offset(), meta_index.offset());
|
|
ASSERT_EQ(decoded_footer.metaindex_handle().size(), meta_index.size());
|
|
ASSERT_EQ(decoded_footer.index_handle().offset(), index.offset());
|
|
ASSERT_EQ(decoded_footer.index_handle().size(), index.size());
|
|
ASSERT_EQ(decoded_footer.version(), 0U);
|
|
}
|
|
{
|
|
// xxhash block based
|
|
std::string encoded;
|
|
Footer footer(kPlainTableMagicNumber, 1);
|
|
BlockHandle meta_index(10, 5), index(20, 15);
|
|
footer.set_metaindex_handle(meta_index);
|
|
footer.set_index_handle(index);
|
|
footer.set_checksum(kxxHash);
|
|
footer.EncodeTo(&encoded);
|
|
Footer decoded_footer;
|
|
Slice encoded_slice(encoded);
|
|
decoded_footer.DecodeFrom(&encoded_slice);
|
|
ASSERT_EQ(decoded_footer.table_magic_number(), kPlainTableMagicNumber);
|
|
ASSERT_EQ(decoded_footer.checksum(), kxxHash);
|
|
ASSERT_EQ(decoded_footer.metaindex_handle().offset(), meta_index.offset());
|
|
ASSERT_EQ(decoded_footer.metaindex_handle().size(), meta_index.size());
|
|
ASSERT_EQ(decoded_footer.index_handle().offset(), index.offset());
|
|
ASSERT_EQ(decoded_footer.index_handle().size(), index.size());
|
|
ASSERT_EQ(decoded_footer.version(), 1U);
|
|
}
|
|
#endif // !ROCKSDB_LITE
|
|
{
|
|
// version == 2
|
|
std::string encoded;
|
|
Footer footer(kBlockBasedTableMagicNumber, 2);
|
|
BlockHandle meta_index(10, 5), index(20, 15);
|
|
footer.set_metaindex_handle(meta_index);
|
|
footer.set_index_handle(index);
|
|
footer.EncodeTo(&encoded);
|
|
Footer decoded_footer;
|
|
Slice encoded_slice(encoded);
|
|
decoded_footer.DecodeFrom(&encoded_slice);
|
|
ASSERT_EQ(decoded_footer.table_magic_number(), kBlockBasedTableMagicNumber);
|
|
ASSERT_EQ(decoded_footer.checksum(), kCRC32c);
|
|
ASSERT_EQ(decoded_footer.metaindex_handle().offset(), meta_index.offset());
|
|
ASSERT_EQ(decoded_footer.metaindex_handle().size(), meta_index.size());
|
|
ASSERT_EQ(decoded_footer.index_handle().offset(), index.offset());
|
|
ASSERT_EQ(decoded_footer.index_handle().size(), index.size());
|
|
ASSERT_EQ(decoded_footer.version(), 2U);
|
|
}
|
|
}
|
|
|
|
class IndexBlockRestartIntervalTest
|
|
: public BlockBasedTableTest,
|
|
public ::testing::WithParamInterface<int> {
|
|
public:
|
|
static std::vector<int> GetRestartValues() { return {-1, 0, 1, 8, 16, 32}; }
|
|
};
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
IndexBlockRestartIntervalTest, IndexBlockRestartIntervalTest,
|
|
::testing::ValuesIn(IndexBlockRestartIntervalTest::GetRestartValues()));
|
|
|
|
TEST_P(IndexBlockRestartIntervalTest, IndexBlockRestartInterval) {
|
|
const int kKeysInTable = 10000;
|
|
const int kKeySize = 100;
|
|
const int kValSize = 500;
|
|
|
|
int index_block_restart_interval = GetParam();
|
|
|
|
Options options;
|
|
BlockBasedTableOptions table_options;
|
|
table_options.block_size = 64; // small block size to get big index block
|
|
table_options.index_block_restart_interval = index_block_restart_interval;
|
|
options.table_factory.reset(new BlockBasedTableFactory(table_options));
|
|
|
|
TableConstructor c(BytewiseComparator());
|
|
static Random rnd(301);
|
|
for (int i = 0; i < kKeysInTable; i++) {
|
|
InternalKey k(RandomString(&rnd, kKeySize), 0, kTypeValue);
|
|
c.Add(k.Encode().ToString(), RandomString(&rnd, kValSize));
|
|
}
|
|
|
|
std::vector<std::string> keys;
|
|
stl_wrappers::KVMap kvmap;
|
|
std::unique_ptr<InternalKeyComparator> comparator(
|
|
new InternalKeyComparator(BytewiseComparator()));
|
|
const ImmutableCFOptions ioptions(options);
|
|
c.Finish(options, ioptions, table_options, *comparator, &keys, &kvmap);
|
|
auto reader = c.GetTableReader();
|
|
|
|
std::unique_ptr<InternalIterator> db_iter(reader->NewIterator(ReadOptions()));
|
|
|
|
// Test point lookup
|
|
for (auto& kv : kvmap) {
|
|
db_iter->Seek(kv.first);
|
|
|
|
ASSERT_TRUE(db_iter->Valid());
|
|
ASSERT_OK(db_iter->status());
|
|
ASSERT_EQ(db_iter->key(), kv.first);
|
|
ASSERT_EQ(db_iter->value(), kv.second);
|
|
}
|
|
|
|
// Test iterating
|
|
auto kv_iter = kvmap.begin();
|
|
for (db_iter->SeekToFirst(); db_iter->Valid(); db_iter->Next()) {
|
|
ASSERT_EQ(db_iter->key(), kv_iter->first);
|
|
ASSERT_EQ(db_iter->value(), kv_iter->second);
|
|
kv_iter++;
|
|
}
|
|
ASSERT_EQ(kv_iter, kvmap.end());
|
|
c.ResetTableReader();
|
|
}
|
|
|
|
class PrefixTest : public testing::Test {
|
|
public:
|
|
PrefixTest() : testing::Test() {}
|
|
~PrefixTest() {}
|
|
};
|
|
|
|
namespace {
|
|
// A simple PrefixExtractor that only works for test PrefixAndWholeKeyTest
|
|
class TestPrefixExtractor : public rocksdb::SliceTransform {
|
|
public:
|
|
~TestPrefixExtractor() override{};
|
|
const char* Name() const override { return "TestPrefixExtractor"; }
|
|
|
|
rocksdb::Slice Transform(const rocksdb::Slice& src) const override {
|
|
assert(IsValid(src));
|
|
return rocksdb::Slice(src.data(), 3);
|
|
}
|
|
|
|
bool InDomain(const rocksdb::Slice& src) const override {
|
|
assert(IsValid(src));
|
|
return true;
|
|
}
|
|
|
|
bool InRange(const rocksdb::Slice& dst) const override { return true; }
|
|
|
|
bool IsValid(const rocksdb::Slice& src) const {
|
|
if (src.size() != 4) {
|
|
return false;
|
|
}
|
|
if (src[0] != '[') {
|
|
return false;
|
|
}
|
|
if (src[1] < '0' || src[1] > '9') {
|
|
return false;
|
|
}
|
|
if (src[2] != ']') {
|
|
return false;
|
|
}
|
|
if (src[3] < '0' || src[3] > '9') {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
} // namespace
|
|
|
|
TEST_F(PrefixTest, PrefixAndWholeKeyTest) {
|
|
rocksdb::Options options;
|
|
options.compaction_style = rocksdb::kCompactionStyleUniversal;
|
|
options.num_levels = 20;
|
|
options.create_if_missing = true;
|
|
options.optimize_filters_for_hits = false;
|
|
options.target_file_size_base = 268435456;
|
|
options.prefix_extractor = std::make_shared<TestPrefixExtractor>();
|
|
rocksdb::BlockBasedTableOptions bbto;
|
|
bbto.filter_policy.reset(rocksdb::NewBloomFilterPolicy(10));
|
|
bbto.block_size = 262144;
|
|
|
|
bbto.whole_key_filtering = true;
|
|
|
|
const std::string kDBPath = test::TmpDir() + "/table_prefix_test";
|
|
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
DestroyDB(kDBPath, options);
|
|
rocksdb::DB* db;
|
|
ASSERT_OK(rocksdb::DB::Open(options, kDBPath, &db));
|
|
|
|
// Create a bunch of keys with 10 filters.
|
|
for (int i = 0; i < 10; i++) {
|
|
std::string prefix = "[" + std::to_string(i) + "]";
|
|
for (int j = 0; j < 10; j++) {
|
|
std::string key = prefix + std::to_string(j);
|
|
db->Put(rocksdb::WriteOptions(), key, "1");
|
|
}
|
|
}
|
|
|
|
// Trigger compaction.
|
|
db->CompactRange(CompactRangeOptions(), nullptr, nullptr);
|
|
delete db;
|
|
// In the second round, turn whole_key_filtering off and expect
|
|
// rocksdb still works.
|
|
}
|
|
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|