f35f7f2704
Summary: This PR does a few things: 1. The MockFileSystem class was split out from the MockEnv. This change would theoretically allow a MockFileSystem to be used by other Environments as well (if we created a means of constructing one). The MockFileSystem implements a FileSystem in its entirety and does not rely on any Wrapper implementation. 2. Make the RocksDB test suite work when MOCK_ENV=1 and ENCRYPTED_ENV=1 are set. To accomplish this, a few things were needed: - The tests that tried to use the "wrong" environment (Env::Default() instead of env_) were updated - The MockFileSystem was changed to support the features it was missing or mishandled (such as recursively deleting files in a directory or supporting renaming of a directory). 3. Updated the test framework to have a ROCKSDB_GTEST_SKIP macro. This can be used to flag tests that are skipped. Currently, this defaults to doing nothing (marks the test as SUCCESS) but will mark the tests as SKIPPED when RocksDB is upgraded to a version of gtest that supports this (gtest-1.10). I have run a full "make check" with MEM_ENV, ENCRYPTED_ENV, both, and neither under both MacOS and RedHat. A few tests were disabled/skipped for the MEM/ENCRYPTED cases. The error_handler_fs_test fails/hangs for MEM_ENV (presumably a timing problem) and I will introduce another PR/issue to track that problem. (I will also push a change to disable those tests soon). There is one more test in DBTest2 that also fails which I need to investigate or skip before this PR is merged. Theoretically, this PR should also allow the test suite to run against an Env loaded from the registry, though I do not have one to try it with currently. Finally, once this is accepted, it would be nice if there was a CircleCI job to run these tests on a checkin so this effort does not become stale. I do not know how to do that, so if someone could write that job, it would be appreciated :) Pull Request resolved: https://github.com/facebook/rocksdb/pull/7566 Reviewed By: zhichao-cao Differential Revision: D24408980 Pulled By: jay-zhuang fbshipit-source-id: 911b1554a4d0da06fd51feca0c090a4abdcb4a5f
2128 lines
80 KiB
C++
2128 lines
80 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include "db/db_test_util.h"
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#include "options/options_helper.h"
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#include "port/stack_trace.h"
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#include "rocksdb/perf_context.h"
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#include "table/block_based/filter_policy_internal.h"
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namespace ROCKSDB_NAMESPACE {
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namespace {
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using BFP = BloomFilterPolicy;
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} // namespace
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// DB tests related to bloom filter.
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class DBBloomFilterTest : public DBTestBase {
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public:
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DBBloomFilterTest()
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: DBTestBase("/db_bloom_filter_test", /*env_do_fsync=*/true) {}
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};
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class DBBloomFilterTestWithParam : public DBTestBase,
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public testing::WithParamInterface<
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std::tuple<BFP::Mode, bool, uint32_t>> {
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// public testing::WithParamInterface<bool> {
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protected:
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BFP::Mode bfp_impl_;
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bool partition_filters_;
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uint32_t format_version_;
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public:
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DBBloomFilterTestWithParam()
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: DBTestBase("/db_bloom_filter_tests", /*env_do_fsync=*/true) {}
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~DBBloomFilterTestWithParam() override {}
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void SetUp() override {
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bfp_impl_ = std::get<0>(GetParam());
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partition_filters_ = std::get<1>(GetParam());
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format_version_ = std::get<2>(GetParam());
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}
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};
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class DBBloomFilterTestDefFormatVersion : public DBBloomFilterTestWithParam {};
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class SliceTransformLimitedDomainGeneric : public SliceTransform {
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const char* Name() const override {
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return "SliceTransformLimitedDomainGeneric";
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}
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Slice Transform(const Slice& src) const override {
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return Slice(src.data(), 5);
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}
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bool InDomain(const Slice& src) const override {
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// prefix will be x????
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return src.size() >= 5;
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}
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bool InRange(const Slice& dst) const override {
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// prefix will be x????
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return dst.size() == 5;
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}
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};
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// KeyMayExist can lead to a few false positives, but not false negatives.
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// To make test deterministic, use a much larger number of bits per key-20 than
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// bits in the key, so that false positives are eliminated
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TEST_P(DBBloomFilterTestDefFormatVersion, KeyMayExist) {
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do {
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ReadOptions ropts;
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std::string value;
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anon::OptionsOverride options_override;
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options_override.filter_policy.reset(new BFP(20, bfp_impl_));
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options_override.partition_filters = partition_filters_;
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options_override.metadata_block_size = 32;
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Options options = CurrentOptions(options_override);
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if (partition_filters_) {
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auto* table_options =
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options.table_factory->GetOptions<BlockBasedTableOptions>();
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if (table_options != nullptr &&
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table_options->index_type !=
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BlockBasedTableOptions::kTwoLevelIndexSearch) {
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// In the current implementation partitioned filters depend on
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// partitioned indexes
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continue;
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}
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}
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options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
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CreateAndReopenWithCF({"pikachu"}, options);
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ASSERT_TRUE(!db_->KeyMayExist(ropts, handles_[1], "a", &value));
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ASSERT_OK(Put(1, "a", "b"));
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bool value_found = false;
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ASSERT_TRUE(
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db_->KeyMayExist(ropts, handles_[1], "a", &value, &value_found));
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ASSERT_TRUE(value_found);
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ASSERT_EQ("b", value);
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ASSERT_OK(Flush(1));
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value.clear();
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uint64_t numopen = TestGetTickerCount(options, NO_FILE_OPENS);
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uint64_t cache_added = TestGetTickerCount(options, BLOCK_CACHE_ADD);
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ASSERT_TRUE(
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db_->KeyMayExist(ropts, handles_[1], "a", &value, &value_found));
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ASSERT_TRUE(!value_found);
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// assert that no new files were opened and no new blocks were
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// read into block cache.
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ASSERT_EQ(numopen, TestGetTickerCount(options, NO_FILE_OPENS));
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ASSERT_EQ(cache_added, TestGetTickerCount(options, BLOCK_CACHE_ADD));
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ASSERT_OK(Delete(1, "a"));
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numopen = TestGetTickerCount(options, NO_FILE_OPENS);
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cache_added = TestGetTickerCount(options, BLOCK_CACHE_ADD);
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ASSERT_TRUE(!db_->KeyMayExist(ropts, handles_[1], "a", &value));
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ASSERT_EQ(numopen, TestGetTickerCount(options, NO_FILE_OPENS));
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ASSERT_EQ(cache_added, TestGetTickerCount(options, BLOCK_CACHE_ADD));
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ASSERT_OK(Flush(1));
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dbfull()->TEST_CompactRange(0, nullptr, nullptr, handles_[1],
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true /* disallow trivial move */);
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numopen = TestGetTickerCount(options, NO_FILE_OPENS);
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cache_added = TestGetTickerCount(options, BLOCK_CACHE_ADD);
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ASSERT_TRUE(!db_->KeyMayExist(ropts, handles_[1], "a", &value));
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ASSERT_EQ(numopen, TestGetTickerCount(options, NO_FILE_OPENS));
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ASSERT_EQ(cache_added, TestGetTickerCount(options, BLOCK_CACHE_ADD));
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ASSERT_OK(Delete(1, "c"));
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numopen = TestGetTickerCount(options, NO_FILE_OPENS);
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cache_added = TestGetTickerCount(options, BLOCK_CACHE_ADD);
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ASSERT_TRUE(!db_->KeyMayExist(ropts, handles_[1], "c", &value));
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ASSERT_EQ(numopen, TestGetTickerCount(options, NO_FILE_OPENS));
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ASSERT_EQ(cache_added, TestGetTickerCount(options, BLOCK_CACHE_ADD));
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// KeyMayExist function only checks data in block caches, which is not used
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// by plain table format.
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} while (
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ChangeOptions(kSkipPlainTable | kSkipHashIndex | kSkipFIFOCompaction));
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}
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TEST_F(DBBloomFilterTest, GetFilterByPrefixBloomCustomPrefixExtractor) {
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for (bool partition_filters : {true, false}) {
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Options options = last_options_;
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options.prefix_extractor =
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std::make_shared<SliceTransformLimitedDomainGeneric>();
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options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
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get_perf_context()->EnablePerLevelPerfContext();
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BlockBasedTableOptions bbto;
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bbto.filter_policy.reset(NewBloomFilterPolicy(10, false));
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if (partition_filters) {
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bbto.partition_filters = true;
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bbto.index_type = BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch;
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}
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bbto.whole_key_filtering = false;
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options.table_factory.reset(NewBlockBasedTableFactory(bbto));
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DestroyAndReopen(options);
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WriteOptions wo;
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ReadOptions ro;
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FlushOptions fo;
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fo.wait = true;
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std::string value;
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ASSERT_OK(dbfull()->Put(wo, "barbarbar", "foo"));
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ASSERT_OK(dbfull()->Put(wo, "barbarbar2", "foo2"));
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ASSERT_OK(dbfull()->Put(wo, "foofoofoo", "bar"));
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dbfull()->Flush(fo);
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ASSERT_EQ("foo", Get("barbarbar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
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ASSERT_EQ(
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0,
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(*(get_perf_context()->level_to_perf_context))[0].bloom_filter_useful);
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ASSERT_EQ("foo2", Get("barbarbar2"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
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ASSERT_EQ(
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0,
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(*(get_perf_context()->level_to_perf_context))[0].bloom_filter_useful);
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ASSERT_EQ("NOT_FOUND", Get("barbarbar3"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
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ASSERT_EQ(
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0,
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(*(get_perf_context()->level_to_perf_context))[0].bloom_filter_useful);
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ASSERT_EQ("NOT_FOUND", Get("barfoofoo"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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ASSERT_EQ(
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1,
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(*(get_perf_context()->level_to_perf_context))[0].bloom_filter_useful);
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ASSERT_EQ("NOT_FOUND", Get("foobarbar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 2);
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ASSERT_EQ(
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2,
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(*(get_perf_context()->level_to_perf_context))[0].bloom_filter_useful);
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ro.total_order_seek = true;
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ASSERT_TRUE(db_->Get(ro, "foobarbar", &value).IsNotFound());
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 2);
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ASSERT_EQ(
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2,
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(*(get_perf_context()->level_to_perf_context))[0].bloom_filter_useful);
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get_perf_context()->Reset();
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}
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}
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TEST_F(DBBloomFilterTest, GetFilterByPrefixBloom) {
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for (bool partition_filters : {true, false}) {
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Options options = last_options_;
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options.prefix_extractor.reset(NewFixedPrefixTransform(8));
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options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
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get_perf_context()->EnablePerLevelPerfContext();
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BlockBasedTableOptions bbto;
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bbto.filter_policy.reset(NewBloomFilterPolicy(10, false));
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if (partition_filters) {
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bbto.partition_filters = true;
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bbto.index_type = BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch;
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}
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bbto.whole_key_filtering = false;
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options.table_factory.reset(NewBlockBasedTableFactory(bbto));
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DestroyAndReopen(options);
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WriteOptions wo;
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ReadOptions ro;
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FlushOptions fo;
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fo.wait = true;
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std::string value;
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ASSERT_OK(dbfull()->Put(wo, "barbarbar", "foo"));
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ASSERT_OK(dbfull()->Put(wo, "barbarbar2", "foo2"));
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ASSERT_OK(dbfull()->Put(wo, "foofoofoo", "bar"));
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dbfull()->Flush(fo);
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ASSERT_EQ("foo", Get("barbarbar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
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ASSERT_EQ("foo2", Get("barbarbar2"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
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ASSERT_EQ("NOT_FOUND", Get("barbarbar3"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
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ASSERT_EQ("NOT_FOUND", Get("barfoofoo"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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ASSERT_EQ("NOT_FOUND", Get("foobarbar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 2);
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ro.total_order_seek = true;
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ASSERT_TRUE(db_->Get(ro, "foobarbar", &value).IsNotFound());
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 2);
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ASSERT_EQ(
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2,
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(*(get_perf_context()->level_to_perf_context))[0].bloom_filter_useful);
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get_perf_context()->Reset();
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}
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}
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TEST_F(DBBloomFilterTest, WholeKeyFilterProp) {
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for (bool partition_filters : {true, false}) {
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Options options = last_options_;
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options.prefix_extractor.reset(NewFixedPrefixTransform(3));
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options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
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get_perf_context()->EnablePerLevelPerfContext();
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BlockBasedTableOptions bbto;
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bbto.filter_policy.reset(NewBloomFilterPolicy(10, false));
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bbto.whole_key_filtering = false;
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if (partition_filters) {
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bbto.partition_filters = true;
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bbto.index_type = BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch;
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}
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options.table_factory.reset(NewBlockBasedTableFactory(bbto));
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DestroyAndReopen(options);
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WriteOptions wo;
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ReadOptions ro;
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FlushOptions fo;
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fo.wait = true;
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std::string value;
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ASSERT_OK(dbfull()->Put(wo, "foobar", "foo"));
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// Needs insert some keys to make sure files are not filtered out by key
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// ranges.
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ASSERT_OK(dbfull()->Put(wo, "aaa", ""));
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ASSERT_OK(dbfull()->Put(wo, "zzz", ""));
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dbfull()->Flush(fo);
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Reopen(options);
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ASSERT_EQ("NOT_FOUND", Get("foo"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
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ASSERT_EQ("NOT_FOUND", Get("bar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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ASSERT_EQ("foo", Get("foobar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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// Reopen with whole key filtering enabled and prefix extractor
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// NULL. Bloom filter should be off for both of whole key and
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// prefix bloom.
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bbto.whole_key_filtering = true;
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options.table_factory.reset(NewBlockBasedTableFactory(bbto));
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options.prefix_extractor.reset();
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Reopen(options);
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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ASSERT_EQ("NOT_FOUND", Get("foo"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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ASSERT_EQ("NOT_FOUND", Get("bar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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ASSERT_EQ("foo", Get("foobar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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// Write DB with only full key filtering.
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ASSERT_OK(dbfull()->Put(wo, "foobar", "foo"));
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// Needs insert some keys to make sure files are not filtered out by key
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// ranges.
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ASSERT_OK(dbfull()->Put(wo, "aaa", ""));
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ASSERT_OK(dbfull()->Put(wo, "zzz", ""));
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db_->CompactRange(CompactRangeOptions(), nullptr, nullptr);
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// Reopen with both of whole key off and prefix extractor enabled.
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// Still no bloom filter should be used.
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options.prefix_extractor.reset(NewFixedPrefixTransform(3));
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bbto.whole_key_filtering = false;
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options.table_factory.reset(NewBlockBasedTableFactory(bbto));
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Reopen(options);
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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ASSERT_EQ("NOT_FOUND", Get("foo"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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ASSERT_EQ("NOT_FOUND", Get("bar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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ASSERT_EQ("foo", Get("foobar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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// Try to create a DB with mixed files:
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ASSERT_OK(dbfull()->Put(wo, "foobar", "foo"));
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// Needs insert some keys to make sure files are not filtered out by key
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// ranges.
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ASSERT_OK(dbfull()->Put(wo, "aaa", ""));
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ASSERT_OK(dbfull()->Put(wo, "zzz", ""));
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db_->CompactRange(CompactRangeOptions(), nullptr, nullptr);
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options.prefix_extractor.reset();
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bbto.whole_key_filtering = true;
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options.table_factory.reset(NewBlockBasedTableFactory(bbto));
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Reopen(options);
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// Try to create a DB with mixed files.
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ASSERT_OK(dbfull()->Put(wo, "barfoo", "bar"));
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// In this case needs insert some keys to make sure files are
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// not filtered out by key ranges.
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ASSERT_OK(dbfull()->Put(wo, "aaa", ""));
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ASSERT_OK(dbfull()->Put(wo, "zzz", ""));
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Flush();
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// Now we have two files:
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// File 1: An older file with prefix bloom.
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// File 2: A newer file with whole bloom filter.
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 1);
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ASSERT_EQ("NOT_FOUND", Get("foo"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 2);
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ASSERT_EQ("NOT_FOUND", Get("bar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 3);
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ASSERT_EQ("foo", Get("foobar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 4);
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ASSERT_EQ("bar", Get("barfoo"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 4);
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// Reopen with the same setting: only whole key is used
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Reopen(options);
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 4);
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ASSERT_EQ("NOT_FOUND", Get("foo"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 5);
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ASSERT_EQ("NOT_FOUND", Get("bar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 6);
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ASSERT_EQ("foo", Get("foobar"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 7);
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ASSERT_EQ("bar", Get("barfoo"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 7);
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// Restart with both filters are allowed
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options.prefix_extractor.reset(NewFixedPrefixTransform(3));
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bbto.whole_key_filtering = true;
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options.table_factory.reset(NewBlockBasedTableFactory(bbto));
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Reopen(options);
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 7);
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// File 1 will has it filtered out.
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// File 2 will not, as prefix `foo` exists in the file.
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ASSERT_EQ("NOT_FOUND", Get("foo"));
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ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 8);
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ASSERT_EQ("NOT_FOUND", Get("bar"));
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 10);
|
|
ASSERT_EQ("foo", Get("foobar"));
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 11);
|
|
ASSERT_EQ("bar", Get("barfoo"));
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 11);
|
|
|
|
// Restart with only prefix bloom is allowed.
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(3));
|
|
bbto.whole_key_filtering = false;
|
|
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
Reopen(options);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 11);
|
|
ASSERT_EQ("NOT_FOUND", Get("foo"));
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 11);
|
|
ASSERT_EQ("NOT_FOUND", Get("bar"));
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 12);
|
|
ASSERT_EQ("foo", Get("foobar"));
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 12);
|
|
ASSERT_EQ("bar", Get("barfoo"));
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 12);
|
|
uint64_t bloom_filter_useful_all_levels = 0;
|
|
for (auto& kv : (*(get_perf_context()->level_to_perf_context))) {
|
|
if (kv.second.bloom_filter_useful > 0) {
|
|
bloom_filter_useful_all_levels += kv.second.bloom_filter_useful;
|
|
}
|
|
}
|
|
ASSERT_EQ(12, bloom_filter_useful_all_levels);
|
|
get_perf_context()->Reset();
|
|
}
|
|
}
|
|
|
|
TEST_P(DBBloomFilterTestWithParam, BloomFilter) {
|
|
do {
|
|
Options options = CurrentOptions();
|
|
env_->count_random_reads_ = true;
|
|
options.env = env_;
|
|
// ChangeCompactOptions() only changes compaction style, which does not
|
|
// trigger reset of table_factory
|
|
BlockBasedTableOptions table_options;
|
|
table_options.no_block_cache = true;
|
|
table_options.filter_policy.reset(new BFP(10, bfp_impl_));
|
|
table_options.partition_filters = partition_filters_;
|
|
if (partition_filters_) {
|
|
table_options.index_type =
|
|
BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch;
|
|
}
|
|
table_options.format_version = format_version_;
|
|
if (format_version_ >= 4) {
|
|
// value delta encoding challenged more with index interval > 1
|
|
table_options.index_block_restart_interval = 8;
|
|
}
|
|
table_options.metadata_block_size = 32;
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
|
|
// Populate multiple layers
|
|
const int N = 10000;
|
|
for (int i = 0; i < N; i++) {
|
|
ASSERT_OK(Put(1, Key(i), Key(i)));
|
|
}
|
|
Compact(1, "a", "z");
|
|
for (int i = 0; i < N; i += 100) {
|
|
ASSERT_OK(Put(1, Key(i), Key(i)));
|
|
}
|
|
Flush(1);
|
|
|
|
// Prevent auto compactions triggered by seeks
|
|
env_->delay_sstable_sync_.store(true, std::memory_order_release);
|
|
|
|
// Lookup present keys. Should rarely read from small sstable.
|
|
env_->random_read_counter_.Reset();
|
|
for (int i = 0; i < N; i++) {
|
|
ASSERT_EQ(Key(i), Get(1, Key(i)));
|
|
}
|
|
int reads = env_->random_read_counter_.Read();
|
|
fprintf(stderr, "%d present => %d reads\n", N, reads);
|
|
ASSERT_GE(reads, N);
|
|
if (partition_filters_) {
|
|
// Without block cache, we read an extra partition filter per each
|
|
// level*read and a partition index per each read
|
|
ASSERT_LE(reads, 4 * N + 2 * N / 100);
|
|
} else {
|
|
ASSERT_LE(reads, N + 2 * N / 100);
|
|
}
|
|
|
|
// Lookup present keys. Should rarely read from either sstable.
|
|
env_->random_read_counter_.Reset();
|
|
for (int i = 0; i < N; i++) {
|
|
ASSERT_EQ("NOT_FOUND", Get(1, Key(i) + ".missing"));
|
|
}
|
|
reads = env_->random_read_counter_.Read();
|
|
fprintf(stderr, "%d missing => %d reads\n", N, reads);
|
|
if (partition_filters_) {
|
|
// With partitioned filter we read one extra filter per level per each
|
|
// missed read.
|
|
ASSERT_LE(reads, 2 * N + 3 * N / 100);
|
|
} else {
|
|
ASSERT_LE(reads, 3 * N / 100);
|
|
}
|
|
|
|
env_->delay_sstable_sync_.store(false, std::memory_order_release);
|
|
Close();
|
|
} while (ChangeCompactOptions());
|
|
}
|
|
|
|
#ifndef ROCKSDB_VALGRIND_RUN
|
|
INSTANTIATE_TEST_CASE_P(
|
|
FormatDef, DBBloomFilterTestDefFormatVersion,
|
|
::testing::Values(
|
|
std::make_tuple(BFP::kDeprecatedBlock, false,
|
|
test::kDefaultFormatVersion),
|
|
std::make_tuple(BFP::kAuto, true, test::kDefaultFormatVersion),
|
|
std::make_tuple(BFP::kAuto, false, test::kDefaultFormatVersion)));
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
FormatDef, DBBloomFilterTestWithParam,
|
|
::testing::Values(
|
|
std::make_tuple(BFP::kDeprecatedBlock, false,
|
|
test::kDefaultFormatVersion),
|
|
std::make_tuple(BFP::kAuto, true, test::kDefaultFormatVersion),
|
|
std::make_tuple(BFP::kAuto, false, test::kDefaultFormatVersion)));
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
FormatLatest, DBBloomFilterTestWithParam,
|
|
::testing::Values(
|
|
std::make_tuple(BFP::kDeprecatedBlock, false,
|
|
test::kLatestFormatVersion),
|
|
std::make_tuple(BFP::kAuto, true, test::kLatestFormatVersion),
|
|
std::make_tuple(BFP::kAuto, false, test::kLatestFormatVersion)));
|
|
#endif // ROCKSDB_VALGRIND_RUN
|
|
|
|
TEST_F(DBBloomFilterTest, BloomFilterRate) {
|
|
while (ChangeFilterOptions()) {
|
|
Options options = CurrentOptions();
|
|
options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
|
|
get_perf_context()->EnablePerLevelPerfContext();
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
|
|
const int maxKey = 10000;
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_OK(Put(1, Key(i), Key(i)));
|
|
}
|
|
// Add a large key to make the file contain wide range
|
|
ASSERT_OK(Put(1, Key(maxKey + 55555), Key(maxKey + 55555)));
|
|
Flush(1);
|
|
|
|
// Check if they can be found
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_EQ(Key(i), Get(1, Key(i)));
|
|
}
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
|
|
|
|
// Check if filter is useful
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_EQ("NOT_FOUND", Get(1, Key(i + 33333)));
|
|
}
|
|
ASSERT_GE(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), maxKey * 0.98);
|
|
ASSERT_GE(
|
|
(*(get_perf_context()->level_to_perf_context))[0].bloom_filter_useful,
|
|
maxKey * 0.98);
|
|
get_perf_context()->Reset();
|
|
}
|
|
}
|
|
|
|
TEST_F(DBBloomFilterTest, BloomFilterCompatibility) {
|
|
Options options = CurrentOptions();
|
|
options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
|
|
BlockBasedTableOptions table_options;
|
|
table_options.filter_policy.reset(NewBloomFilterPolicy(10, true));
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
// Create with block based filter
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
|
|
const int maxKey = 10000;
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_OK(Put(1, Key(i), Key(i)));
|
|
}
|
|
ASSERT_OK(Put(1, Key(maxKey + 55555), Key(maxKey + 55555)));
|
|
Flush(1);
|
|
|
|
// Check db with full filter
|
|
table_options.filter_policy.reset(NewBloomFilterPolicy(10, false));
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
ReopenWithColumnFamilies({"default", "pikachu"}, options);
|
|
|
|
// Check if they can be found
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_EQ(Key(i), Get(1, Key(i)));
|
|
}
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
|
|
|
|
// Check db with partitioned full filter
|
|
table_options.partition_filters = true;
|
|
table_options.index_type =
|
|
BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch;
|
|
table_options.filter_policy.reset(NewBloomFilterPolicy(10, false));
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
ReopenWithColumnFamilies({"default", "pikachu"}, options);
|
|
|
|
// Check if they can be found
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_EQ(Key(i), Get(1, Key(i)));
|
|
}
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
|
|
}
|
|
|
|
TEST_F(DBBloomFilterTest, BloomFilterReverseCompatibility) {
|
|
for (bool partition_filters : {true, false}) {
|
|
Options options = CurrentOptions();
|
|
options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
|
|
BlockBasedTableOptions table_options;
|
|
if (partition_filters) {
|
|
table_options.partition_filters = true;
|
|
table_options.index_type =
|
|
BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch;
|
|
}
|
|
table_options.filter_policy.reset(NewBloomFilterPolicy(10, false));
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
DestroyAndReopen(options);
|
|
|
|
// Create with full filter
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
|
|
const int maxKey = 10000;
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_OK(Put(1, Key(i), Key(i)));
|
|
}
|
|
ASSERT_OK(Put(1, Key(maxKey + 55555), Key(maxKey + 55555)));
|
|
Flush(1);
|
|
|
|
// Check db with block_based filter
|
|
table_options.filter_policy.reset(NewBloomFilterPolicy(10, true));
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
ReopenWithColumnFamilies({"default", "pikachu"}, options);
|
|
|
|
// Check if they can be found
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_EQ(Key(i), Get(1, Key(i)));
|
|
}
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
|
|
}
|
|
}
|
|
|
|
namespace {
|
|
// A wrapped bloom over block-based FilterPolicy
|
|
class TestingWrappedBlockBasedFilterPolicy : public FilterPolicy {
|
|
public:
|
|
explicit TestingWrappedBlockBasedFilterPolicy(int bits_per_key)
|
|
: filter_(NewBloomFilterPolicy(bits_per_key, true)), counter_(0) {}
|
|
|
|
~TestingWrappedBlockBasedFilterPolicy() override { delete filter_; }
|
|
|
|
const char* Name() const override {
|
|
return "TestingWrappedBlockBasedFilterPolicy";
|
|
}
|
|
|
|
void CreateFilter(const ROCKSDB_NAMESPACE::Slice* keys, int n,
|
|
std::string* dst) const override {
|
|
std::unique_ptr<ROCKSDB_NAMESPACE::Slice[]> user_keys(
|
|
new ROCKSDB_NAMESPACE::Slice[n]);
|
|
for (int i = 0; i < n; ++i) {
|
|
user_keys[i] = convertKey(keys[i]);
|
|
}
|
|
return filter_->CreateFilter(user_keys.get(), n, dst);
|
|
}
|
|
|
|
bool KeyMayMatch(const ROCKSDB_NAMESPACE::Slice& key,
|
|
const ROCKSDB_NAMESPACE::Slice& filter) const override {
|
|
counter_++;
|
|
return filter_->KeyMayMatch(convertKey(key), filter);
|
|
}
|
|
|
|
uint32_t GetCounter() { return counter_; }
|
|
|
|
private:
|
|
const FilterPolicy* filter_;
|
|
mutable uint32_t counter_;
|
|
|
|
ROCKSDB_NAMESPACE::Slice convertKey(
|
|
const ROCKSDB_NAMESPACE::Slice& key) const {
|
|
return key;
|
|
}
|
|
};
|
|
} // namespace
|
|
|
|
TEST_F(DBBloomFilterTest, WrappedBlockBasedFilterPolicy) {
|
|
Options options = CurrentOptions();
|
|
options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
|
|
|
|
BlockBasedTableOptions table_options;
|
|
TestingWrappedBlockBasedFilterPolicy* policy =
|
|
new TestingWrappedBlockBasedFilterPolicy(10);
|
|
table_options.filter_policy.reset(policy);
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
|
|
const int maxKey = 10000;
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_OK(Put(1, Key(i), Key(i)));
|
|
}
|
|
// Add a large key to make the file contain wide range
|
|
ASSERT_OK(Put(1, Key(maxKey + 55555), Key(maxKey + 55555)));
|
|
ASSERT_EQ(0U, policy->GetCounter());
|
|
Flush(1);
|
|
|
|
// Check if they can be found
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_EQ(Key(i), Get(1, Key(i)));
|
|
}
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 0);
|
|
ASSERT_EQ(1U * maxKey, policy->GetCounter());
|
|
|
|
// Check if filter is useful
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_EQ("NOT_FOUND", Get(1, Key(i + 33333)));
|
|
}
|
|
ASSERT_GE(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), maxKey * 0.98);
|
|
ASSERT_EQ(2U * maxKey, policy->GetCounter());
|
|
}
|
|
|
|
namespace {
|
|
// NOTE: This class is referenced by HISTORY.md as a model for a wrapper
|
|
// FilterPolicy selecting among configurations based on context.
|
|
class LevelAndStyleCustomFilterPolicy : public FilterPolicy {
|
|
public:
|
|
explicit LevelAndStyleCustomFilterPolicy(int bpk_fifo, int bpk_l0_other,
|
|
int bpk_otherwise)
|
|
: policy_fifo_(NewBloomFilterPolicy(bpk_fifo)),
|
|
policy_l0_other_(NewBloomFilterPolicy(bpk_l0_other)),
|
|
policy_otherwise_(NewBloomFilterPolicy(bpk_otherwise)) {}
|
|
|
|
// OK to use built-in policy name because we are deferring to a
|
|
// built-in builder. We aren't changing the serialized format.
|
|
const char* Name() const override { return policy_fifo_->Name(); }
|
|
|
|
FilterBitsBuilder* GetBuilderWithContext(
|
|
const FilterBuildingContext& context) const override {
|
|
if (context.compaction_style == kCompactionStyleFIFO) {
|
|
return policy_fifo_->GetBuilderWithContext(context);
|
|
} else if (context.level_at_creation == 0) {
|
|
return policy_l0_other_->GetBuilderWithContext(context);
|
|
} else {
|
|
return policy_otherwise_->GetBuilderWithContext(context);
|
|
}
|
|
}
|
|
|
|
FilterBitsReader* GetFilterBitsReader(const Slice& contents) const override {
|
|
// OK to defer to any of them; they all can parse built-in filters
|
|
// from any settings.
|
|
return policy_fifo_->GetFilterBitsReader(contents);
|
|
}
|
|
|
|
// Defer just in case configuration uses block-based filter
|
|
void CreateFilter(const Slice* keys, int n, std::string* dst) const override {
|
|
policy_otherwise_->CreateFilter(keys, n, dst);
|
|
}
|
|
bool KeyMayMatch(const Slice& key, const Slice& filter) const override {
|
|
return policy_otherwise_->KeyMayMatch(key, filter);
|
|
}
|
|
|
|
private:
|
|
const std::unique_ptr<const FilterPolicy> policy_fifo_;
|
|
const std::unique_ptr<const FilterPolicy> policy_l0_other_;
|
|
const std::unique_ptr<const FilterPolicy> policy_otherwise_;
|
|
};
|
|
|
|
class TestingContextCustomFilterPolicy
|
|
: public LevelAndStyleCustomFilterPolicy {
|
|
public:
|
|
explicit TestingContextCustomFilterPolicy(int bpk_fifo, int bpk_l0_other,
|
|
int bpk_otherwise)
|
|
: LevelAndStyleCustomFilterPolicy(bpk_fifo, bpk_l0_other, bpk_otherwise) {
|
|
}
|
|
|
|
FilterBitsBuilder* GetBuilderWithContext(
|
|
const FilterBuildingContext& context) const override {
|
|
test_report_ += "cf=";
|
|
test_report_ += context.column_family_name;
|
|
test_report_ += ",cs=";
|
|
test_report_ +=
|
|
OptionsHelper::compaction_style_to_string[context.compaction_style];
|
|
test_report_ += ",lv=";
|
|
test_report_ += std::to_string(context.level_at_creation);
|
|
test_report_ += "\n";
|
|
|
|
return LevelAndStyleCustomFilterPolicy::GetBuilderWithContext(context);
|
|
}
|
|
|
|
std::string DumpTestReport() {
|
|
std::string rv;
|
|
std::swap(rv, test_report_);
|
|
return rv;
|
|
}
|
|
|
|
private:
|
|
mutable std::string test_report_;
|
|
};
|
|
} // namespace
|
|
|
|
TEST_F(DBBloomFilterTest, ContextCustomFilterPolicy) {
|
|
for (bool fifo : {true, false}) {
|
|
Options options = CurrentOptions();
|
|
options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
|
|
options.compaction_style =
|
|
fifo ? kCompactionStyleFIFO : kCompactionStyleLevel;
|
|
|
|
BlockBasedTableOptions table_options;
|
|
auto policy = std::make_shared<TestingContextCustomFilterPolicy>(15, 8, 5);
|
|
table_options.filter_policy = policy;
|
|
table_options.format_version = 5;
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
CreateAndReopenWithCF({fifo ? "abe" : "bob"}, options);
|
|
|
|
const int maxKey = 10000;
|
|
for (int i = 0; i < maxKey / 2; i++) {
|
|
ASSERT_OK(Put(1, Key(i), Key(i)));
|
|
}
|
|
// Add a large key to make the file contain wide range
|
|
ASSERT_OK(Put(1, Key(maxKey + 55555), Key(maxKey + 55555)));
|
|
Flush(1);
|
|
EXPECT_EQ(policy->DumpTestReport(),
|
|
fifo ? "cf=abe,cs=kCompactionStyleFIFO,lv=0\n"
|
|
: "cf=bob,cs=kCompactionStyleLevel,lv=0\n");
|
|
|
|
for (int i = maxKey / 2; i < maxKey; i++) {
|
|
ASSERT_OK(Put(1, Key(i), Key(i)));
|
|
}
|
|
Flush(1);
|
|
EXPECT_EQ(policy->DumpTestReport(),
|
|
fifo ? "cf=abe,cs=kCompactionStyleFIFO,lv=0\n"
|
|
: "cf=bob,cs=kCompactionStyleLevel,lv=0\n");
|
|
|
|
// Check that they can be found
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_EQ(Key(i), Get(1, Key(i)));
|
|
}
|
|
// Since we have two tables / two filters, we might have Bloom checks on
|
|
// our queries, but no more than one "useful" per query on a found key.
|
|
EXPECT_LE(TestGetAndResetTickerCount(options, BLOOM_FILTER_USEFUL), maxKey);
|
|
|
|
// Check that we have two filters, each about
|
|
// fifo: 0.12% FP rate (15 bits per key)
|
|
// level: 2.3% FP rate (8 bits per key)
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_EQ("NOT_FOUND", Get(1, Key(i + 33333)));
|
|
}
|
|
{
|
|
auto useful_count =
|
|
TestGetAndResetTickerCount(options, BLOOM_FILTER_USEFUL);
|
|
EXPECT_GE(useful_count, maxKey * 2 * (fifo ? 0.9980 : 0.975));
|
|
EXPECT_LE(useful_count, maxKey * 2 * (fifo ? 0.9995 : 0.98));
|
|
}
|
|
|
|
if (!fifo) { // FIFO only has L0
|
|
// Full compaction
|
|
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), handles_[1], nullptr,
|
|
nullptr));
|
|
EXPECT_EQ(policy->DumpTestReport(),
|
|
"cf=bob,cs=kCompactionStyleLevel,lv=1\n");
|
|
|
|
// Check that we now have one filter, about 9.2% FP rate (5 bits per key)
|
|
for (int i = 0; i < maxKey; i++) {
|
|
ASSERT_EQ("NOT_FOUND", Get(1, Key(i + 33333)));
|
|
}
|
|
{
|
|
auto useful_count =
|
|
TestGetAndResetTickerCount(options, BLOOM_FILTER_USEFUL);
|
|
EXPECT_GE(useful_count, maxKey * 0.90);
|
|
EXPECT_LE(useful_count, maxKey * 0.91);
|
|
}
|
|
}
|
|
|
|
// Destroy
|
|
ASSERT_OK(dbfull()->DropColumnFamily(handles_[1]));
|
|
dbfull()->DestroyColumnFamilyHandle(handles_[1]);
|
|
handles_[1] = nullptr;
|
|
}
|
|
}
|
|
|
|
class SliceTransformLimitedDomain : public SliceTransform {
|
|
const char* Name() const override { return "SliceTransformLimitedDomain"; }
|
|
|
|
Slice Transform(const Slice& src) const override {
|
|
return Slice(src.data(), 5);
|
|
}
|
|
|
|
bool InDomain(const Slice& src) const override {
|
|
// prefix will be x????
|
|
return src.size() >= 5 && src[0] == 'x';
|
|
}
|
|
|
|
bool InRange(const Slice& dst) const override {
|
|
// prefix will be x????
|
|
return dst.size() == 5 && dst[0] == 'x';
|
|
}
|
|
};
|
|
|
|
TEST_F(DBBloomFilterTest, PrefixExtractorFullFilter) {
|
|
BlockBasedTableOptions bbto;
|
|
// Full Filter Block
|
|
bbto.filter_policy.reset(ROCKSDB_NAMESPACE::NewBloomFilterPolicy(10, false));
|
|
bbto.whole_key_filtering = false;
|
|
|
|
Options options = CurrentOptions();
|
|
options.prefix_extractor = std::make_shared<SliceTransformLimitedDomain>();
|
|
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
|
|
DestroyAndReopen(options);
|
|
|
|
ASSERT_OK(Put("x1111_AAAA", "val1"));
|
|
ASSERT_OK(Put("x1112_AAAA", "val2"));
|
|
ASSERT_OK(Put("x1113_AAAA", "val3"));
|
|
ASSERT_OK(Put("x1114_AAAA", "val4"));
|
|
// Not in domain, wont be added to filter
|
|
ASSERT_OK(Put("zzzzz_AAAA", "val5"));
|
|
|
|
ASSERT_OK(Flush());
|
|
|
|
ASSERT_EQ(Get("x1111_AAAA"), "val1");
|
|
ASSERT_EQ(Get("x1112_AAAA"), "val2");
|
|
ASSERT_EQ(Get("x1113_AAAA"), "val3");
|
|
ASSERT_EQ(Get("x1114_AAAA"), "val4");
|
|
// Was not added to filter but rocksdb will try to read it from the filter
|
|
ASSERT_EQ(Get("zzzzz_AAAA"), "val5");
|
|
}
|
|
|
|
TEST_F(DBBloomFilterTest, PrefixExtractorBlockFilter) {
|
|
BlockBasedTableOptions bbto;
|
|
// Block Filter Block
|
|
bbto.filter_policy.reset(ROCKSDB_NAMESPACE::NewBloomFilterPolicy(10, true));
|
|
|
|
Options options = CurrentOptions();
|
|
options.prefix_extractor = std::make_shared<SliceTransformLimitedDomain>();
|
|
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
|
|
DestroyAndReopen(options);
|
|
|
|
ASSERT_OK(Put("x1113_AAAA", "val3"));
|
|
ASSERT_OK(Put("x1114_AAAA", "val4"));
|
|
// Not in domain, wont be added to filter
|
|
ASSERT_OK(Put("zzzzz_AAAA", "val1"));
|
|
ASSERT_OK(Put("zzzzz_AAAB", "val2"));
|
|
ASSERT_OK(Put("zzzzz_AAAC", "val3"));
|
|
ASSERT_OK(Put("zzzzz_AAAD", "val4"));
|
|
|
|
ASSERT_OK(Flush());
|
|
|
|
std::vector<std::string> iter_res;
|
|
auto iter = db_->NewIterator(ReadOptions());
|
|
// Seek to a key that was not in Domain
|
|
for (iter->Seek("zzzzz_AAAA"); iter->Valid(); iter->Next()) {
|
|
iter_res.emplace_back(iter->value().ToString());
|
|
}
|
|
|
|
std::vector<std::string> expected_res = {"val1", "val2", "val3", "val4"};
|
|
ASSERT_EQ(iter_res, expected_res);
|
|
delete iter;
|
|
}
|
|
|
|
TEST_F(DBBloomFilterTest, MemtableWholeKeyBloomFilter) {
|
|
// regression test for #2743. the range delete tombstones in memtable should
|
|
// be added even when Get() skips searching due to its prefix bloom filter
|
|
const int kMemtableSize = 1 << 20; // 1MB
|
|
const int kMemtablePrefixFilterSize = 1 << 13; // 8KB
|
|
const int kPrefixLen = 4;
|
|
Options options = CurrentOptions();
|
|
options.memtable_prefix_bloom_size_ratio =
|
|
static_cast<double>(kMemtablePrefixFilterSize) / kMemtableSize;
|
|
options.prefix_extractor.reset(
|
|
ROCKSDB_NAMESPACE::NewFixedPrefixTransform(kPrefixLen));
|
|
options.write_buffer_size = kMemtableSize;
|
|
options.memtable_whole_key_filtering = false;
|
|
Reopen(options);
|
|
std::string key1("AAAABBBB");
|
|
std::string key2("AAAACCCC"); // not in DB
|
|
std::string key3("AAAADDDD");
|
|
std::string key4("AAAAEEEE");
|
|
std::string value1("Value1");
|
|
std::string value3("Value3");
|
|
std::string value4("Value4");
|
|
|
|
ASSERT_OK(Put(key1, value1, WriteOptions()));
|
|
|
|
// check memtable bloom stats
|
|
ASSERT_EQ("NOT_FOUND", Get(key2));
|
|
ASSERT_EQ(0, get_perf_context()->bloom_memtable_miss_count);
|
|
// same prefix, bloom filter false positive
|
|
ASSERT_EQ(1, get_perf_context()->bloom_memtable_hit_count);
|
|
|
|
// enable whole key bloom filter
|
|
options.memtable_whole_key_filtering = true;
|
|
Reopen(options);
|
|
// check memtable bloom stats
|
|
ASSERT_OK(Put(key3, value3, WriteOptions()));
|
|
ASSERT_EQ("NOT_FOUND", Get(key2));
|
|
// whole key bloom filter kicks in and determines it's a miss
|
|
ASSERT_EQ(1, get_perf_context()->bloom_memtable_miss_count);
|
|
ASSERT_EQ(1, get_perf_context()->bloom_memtable_hit_count);
|
|
|
|
// verify whole key filtering does not depend on prefix_extractor
|
|
options.prefix_extractor.reset();
|
|
Reopen(options);
|
|
// check memtable bloom stats
|
|
ASSERT_OK(Put(key4, value4, WriteOptions()));
|
|
ASSERT_EQ("NOT_FOUND", Get(key2));
|
|
// whole key bloom filter kicks in and determines it's a miss
|
|
ASSERT_EQ(2, get_perf_context()->bloom_memtable_miss_count);
|
|
ASSERT_EQ(1, get_perf_context()->bloom_memtable_hit_count);
|
|
}
|
|
|
|
TEST_F(DBBloomFilterTest, MemtablePrefixBloomOutOfDomain) {
|
|
constexpr size_t kPrefixSize = 8;
|
|
const std::string kKey = "key";
|
|
assert(kKey.size() < kPrefixSize);
|
|
Options options = CurrentOptions();
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(kPrefixSize));
|
|
options.memtable_prefix_bloom_size_ratio = 0.25;
|
|
Reopen(options);
|
|
ASSERT_OK(Put(kKey, "v"));
|
|
ASSERT_EQ("v", Get(kKey));
|
|
std::unique_ptr<Iterator> iter(dbfull()->NewIterator(ReadOptions()));
|
|
iter->Seek(kKey);
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(kKey, iter->key());
|
|
iter->SeekForPrev(kKey);
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(kKey, iter->key());
|
|
}
|
|
|
|
class DBBloomFilterTestVaryPrefixAndFormatVer
|
|
: public DBTestBase,
|
|
public testing::WithParamInterface<std::tuple<bool, uint32_t>> {
|
|
protected:
|
|
bool use_prefix_;
|
|
uint32_t format_version_;
|
|
|
|
public:
|
|
DBBloomFilterTestVaryPrefixAndFormatVer()
|
|
: DBTestBase("/db_bloom_filter_tests", /*env_do_fsync=*/true) {}
|
|
|
|
~DBBloomFilterTestVaryPrefixAndFormatVer() override {}
|
|
|
|
void SetUp() override {
|
|
use_prefix_ = std::get<0>(GetParam());
|
|
format_version_ = std::get<1>(GetParam());
|
|
}
|
|
|
|
static std::string UKey(uint32_t i) { return Key(static_cast<int>(i)); }
|
|
};
|
|
|
|
TEST_P(DBBloomFilterTestVaryPrefixAndFormatVer, PartitionedMultiGet) {
|
|
Options options = CurrentOptions();
|
|
if (use_prefix_) {
|
|
// Entire key from UKey()
|
|
options.prefix_extractor.reset(NewCappedPrefixTransform(9));
|
|
}
|
|
options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
|
|
BlockBasedTableOptions bbto;
|
|
bbto.filter_policy.reset(NewBloomFilterPolicy(20));
|
|
bbto.partition_filters = true;
|
|
bbto.index_type = BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch;
|
|
bbto.whole_key_filtering = !use_prefix_;
|
|
if (use_prefix_) { // (not related to prefix, just alternating between)
|
|
// Make sure code appropriately deals with metadata block size setting
|
|
// that is "too small" (smaller than minimum size for filter builder)
|
|
bbto.metadata_block_size = 63;
|
|
} else {
|
|
// Make sure the test will work even on platforms with large minimum
|
|
// filter size, due to large cache line size.
|
|
// (Largest cache line size + 10+% overhead.)
|
|
bbto.metadata_block_size = 290;
|
|
}
|
|
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
DestroyAndReopen(options);
|
|
ReadOptions ropts;
|
|
|
|
constexpr uint32_t N = 12000;
|
|
// Add N/2 evens
|
|
for (uint32_t i = 0; i < N; i += 2) {
|
|
ASSERT_OK(Put(UKey(i), UKey(i)));
|
|
}
|
|
ASSERT_OK(Flush());
|
|
#ifndef ROCKSDB_LITE
|
|
ASSERT_EQ(TotalTableFiles(), 1);
|
|
#endif
|
|
|
|
constexpr uint32_t Q = 29;
|
|
// MultiGet In
|
|
std::array<std::string, Q> keys;
|
|
std::array<Slice, Q> key_slices;
|
|
std::array<ColumnFamilyHandle*, Q> column_families;
|
|
// MultiGet Out
|
|
std::array<Status, Q> statuses;
|
|
std::array<PinnableSlice, Q> values;
|
|
|
|
TestGetAndResetTickerCount(options, BLOCK_CACHE_FILTER_HIT);
|
|
TestGetAndResetTickerCount(options, BLOCK_CACHE_FILTER_MISS);
|
|
TestGetAndResetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL);
|
|
TestGetAndResetTickerCount(options, BLOOM_FILTER_USEFUL);
|
|
TestGetAndResetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED);
|
|
TestGetAndResetTickerCount(options, BLOOM_FILTER_FULL_POSITIVE);
|
|
TestGetAndResetTickerCount(options, BLOOM_FILTER_FULL_TRUE_POSITIVE);
|
|
|
|
// Check that initial clump of keys only loads one partition filter from
|
|
// block cache.
|
|
// And that spread out keys load many partition filters.
|
|
// In both cases, mix present vs. not present keys.
|
|
for (uint32_t stride : {uint32_t{1}, (N / Q) | 1}) {
|
|
for (uint32_t i = 0; i < Q; ++i) {
|
|
keys[i] = UKey(i * stride);
|
|
key_slices[i] = Slice(keys[i]);
|
|
column_families[i] = db_->DefaultColumnFamily();
|
|
statuses[i] = Status();
|
|
values[i] = PinnableSlice();
|
|
}
|
|
|
|
db_->MultiGet(ropts, Q, &column_families[0], &key_slices[0], &values[0],
|
|
/*timestamps=*/nullptr, &statuses[0], true);
|
|
|
|
// Confirm correct status results
|
|
uint32_t number_not_found = 0;
|
|
for (uint32_t i = 0; i < Q; ++i) {
|
|
if ((i * stride % 2) == 0) {
|
|
ASSERT_OK(statuses[i]);
|
|
} else {
|
|
ASSERT_TRUE(statuses[i].IsNotFound());
|
|
++number_not_found;
|
|
}
|
|
}
|
|
|
|
// Confirm correct Bloom stats (no FPs)
|
|
uint64_t filter_useful = TestGetAndResetTickerCount(
|
|
options,
|
|
use_prefix_ ? BLOOM_FILTER_PREFIX_USEFUL : BLOOM_FILTER_USEFUL);
|
|
uint64_t filter_checked =
|
|
TestGetAndResetTickerCount(options, use_prefix_
|
|
? BLOOM_FILTER_PREFIX_CHECKED
|
|
: BLOOM_FILTER_FULL_POSITIVE) +
|
|
(use_prefix_ ? 0 : filter_useful);
|
|
EXPECT_EQ(filter_useful, number_not_found);
|
|
EXPECT_EQ(filter_checked, Q);
|
|
if (!use_prefix_) {
|
|
EXPECT_EQ(
|
|
TestGetAndResetTickerCount(options, BLOOM_FILTER_FULL_TRUE_POSITIVE),
|
|
Q - number_not_found);
|
|
}
|
|
|
|
// Confirm no duplicate loading same filter partition
|
|
uint64_t filter_accesses =
|
|
TestGetAndResetTickerCount(options, BLOCK_CACHE_FILTER_HIT) +
|
|
TestGetAndResetTickerCount(options, BLOCK_CACHE_FILTER_MISS);
|
|
if (stride == 1) {
|
|
EXPECT_EQ(filter_accesses, 1);
|
|
} else {
|
|
// for large stride
|
|
EXPECT_GE(filter_accesses, Q / 2 + 1);
|
|
}
|
|
}
|
|
|
|
// Check that a clump of keys (present and not) works when spanning
|
|
// two partitions
|
|
int found_spanning = 0;
|
|
for (uint32_t start = 0; start < N / 2;) {
|
|
for (uint32_t i = 0; i < Q; ++i) {
|
|
keys[i] = UKey(start + i);
|
|
key_slices[i] = Slice(keys[i]);
|
|
column_families[i] = db_->DefaultColumnFamily();
|
|
statuses[i] = Status();
|
|
values[i] = PinnableSlice();
|
|
}
|
|
|
|
db_->MultiGet(ropts, Q, &column_families[0], &key_slices[0], &values[0],
|
|
/*timestamps=*/nullptr, &statuses[0], true);
|
|
|
|
// Confirm correct status results
|
|
uint32_t number_not_found = 0;
|
|
for (uint32_t i = 0; i < Q; ++i) {
|
|
if (((start + i) % 2) == 0) {
|
|
ASSERT_OK(statuses[i]);
|
|
} else {
|
|
ASSERT_TRUE(statuses[i].IsNotFound());
|
|
++number_not_found;
|
|
}
|
|
}
|
|
|
|
// Confirm correct Bloom stats (might see some FPs)
|
|
uint64_t filter_useful = TestGetAndResetTickerCount(
|
|
options,
|
|
use_prefix_ ? BLOOM_FILTER_PREFIX_USEFUL : BLOOM_FILTER_USEFUL);
|
|
uint64_t filter_checked =
|
|
TestGetAndResetTickerCount(options, use_prefix_
|
|
? BLOOM_FILTER_PREFIX_CHECKED
|
|
: BLOOM_FILTER_FULL_POSITIVE) +
|
|
(use_prefix_ ? 0 : filter_useful);
|
|
EXPECT_GE(filter_useful, number_not_found - 2); // possible FP
|
|
EXPECT_EQ(filter_checked, Q);
|
|
if (!use_prefix_) {
|
|
EXPECT_EQ(
|
|
TestGetAndResetTickerCount(options, BLOOM_FILTER_FULL_TRUE_POSITIVE),
|
|
Q - number_not_found);
|
|
}
|
|
|
|
// Confirm no duplicate loading of same filter partition
|
|
uint64_t filter_accesses =
|
|
TestGetAndResetTickerCount(options, BLOCK_CACHE_FILTER_HIT) +
|
|
TestGetAndResetTickerCount(options, BLOCK_CACHE_FILTER_MISS);
|
|
if (filter_accesses == 2) {
|
|
// Spanned across partitions.
|
|
++found_spanning;
|
|
if (found_spanning >= 2) {
|
|
break;
|
|
} else {
|
|
// Ensure that at least once we have at least one present and
|
|
// one non-present key on both sides of partition boundary.
|
|
start += 2;
|
|
}
|
|
} else {
|
|
EXPECT_EQ(filter_accesses, 1);
|
|
// See explanation at "start += 2"
|
|
start += Q - 4;
|
|
}
|
|
}
|
|
EXPECT_TRUE(found_spanning >= 2);
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(DBBloomFilterTestVaryPrefixAndFormatVer,
|
|
DBBloomFilterTestVaryPrefixAndFormatVer,
|
|
::testing::Values(
|
|
// (use_prefix, format_version)
|
|
std::make_tuple(false, 2),
|
|
std::make_tuple(false, 3),
|
|
std::make_tuple(false, 4),
|
|
std::make_tuple(false, 5),
|
|
std::make_tuple(true, 2),
|
|
std::make_tuple(true, 3),
|
|
std::make_tuple(true, 4),
|
|
std::make_tuple(true, 5)));
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
namespace {
|
|
namespace BFP2 {
|
|
// Extends BFP::Mode with option to use Plain table
|
|
using PseudoMode = int;
|
|
static constexpr PseudoMode kPlainTable = -1;
|
|
} // namespace BFP2
|
|
} // namespace
|
|
|
|
class BloomStatsTestWithParam
|
|
: public DBBloomFilterTest,
|
|
public testing::WithParamInterface<std::tuple<BFP2::PseudoMode, bool>> {
|
|
public:
|
|
BloomStatsTestWithParam() {
|
|
bfp_impl_ = std::get<0>(GetParam());
|
|
partition_filters_ = std::get<1>(GetParam());
|
|
|
|
options_.create_if_missing = true;
|
|
options_.prefix_extractor.reset(
|
|
ROCKSDB_NAMESPACE::NewFixedPrefixTransform(4));
|
|
options_.memtable_prefix_bloom_size_ratio =
|
|
8.0 * 1024.0 / static_cast<double>(options_.write_buffer_size);
|
|
if (bfp_impl_ == BFP2::kPlainTable) {
|
|
assert(!partition_filters_); // not supported in plain table
|
|
PlainTableOptions table_options;
|
|
options_.table_factory.reset(NewPlainTableFactory(table_options));
|
|
} else {
|
|
BlockBasedTableOptions table_options;
|
|
table_options.hash_index_allow_collision = false;
|
|
if (partition_filters_) {
|
|
assert(bfp_impl_ != BFP::kDeprecatedBlock);
|
|
table_options.partition_filters = partition_filters_;
|
|
table_options.index_type =
|
|
BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch;
|
|
}
|
|
table_options.filter_policy.reset(
|
|
new BFP(10, static_cast<BFP::Mode>(bfp_impl_)));
|
|
options_.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
}
|
|
options_.env = env_;
|
|
|
|
get_perf_context()->Reset();
|
|
DestroyAndReopen(options_);
|
|
}
|
|
|
|
~BloomStatsTestWithParam() override {
|
|
get_perf_context()->Reset();
|
|
Destroy(options_);
|
|
}
|
|
|
|
// Required if inheriting from testing::WithParamInterface<>
|
|
static void SetUpTestCase() {}
|
|
static void TearDownTestCase() {}
|
|
|
|
BFP2::PseudoMode bfp_impl_;
|
|
bool partition_filters_;
|
|
Options options_;
|
|
};
|
|
|
|
// 1 Insert 2 K-V pairs into DB
|
|
// 2 Call Get() for both keys - expext memtable bloom hit stat to be 2
|
|
// 3 Call Get() for nonexisting key - expect memtable bloom miss stat to be 1
|
|
// 4 Call Flush() to create SST
|
|
// 5 Call Get() for both keys - expext SST bloom hit stat to be 2
|
|
// 6 Call Get() for nonexisting key - expect SST bloom miss stat to be 1
|
|
// Test both: block and plain SST
|
|
TEST_P(BloomStatsTestWithParam, BloomStatsTest) {
|
|
std::string key1("AAAA");
|
|
std::string key2("RXDB"); // not in DB
|
|
std::string key3("ZBRA");
|
|
std::string value1("Value1");
|
|
std::string value3("Value3");
|
|
|
|
ASSERT_OK(Put(key1, value1, WriteOptions()));
|
|
ASSERT_OK(Put(key3, value3, WriteOptions()));
|
|
|
|
// check memtable bloom stats
|
|
ASSERT_EQ(value1, Get(key1));
|
|
ASSERT_EQ(1, get_perf_context()->bloom_memtable_hit_count);
|
|
ASSERT_EQ(value3, Get(key3));
|
|
ASSERT_EQ(2, get_perf_context()->bloom_memtable_hit_count);
|
|
ASSERT_EQ(0, get_perf_context()->bloom_memtable_miss_count);
|
|
|
|
ASSERT_EQ("NOT_FOUND", Get(key2));
|
|
ASSERT_EQ(1, get_perf_context()->bloom_memtable_miss_count);
|
|
ASSERT_EQ(2, get_perf_context()->bloom_memtable_hit_count);
|
|
|
|
// sanity checks
|
|
ASSERT_EQ(0, get_perf_context()->bloom_sst_hit_count);
|
|
ASSERT_EQ(0, get_perf_context()->bloom_sst_miss_count);
|
|
|
|
Flush();
|
|
|
|
// sanity checks
|
|
ASSERT_EQ(0, get_perf_context()->bloom_sst_hit_count);
|
|
ASSERT_EQ(0, get_perf_context()->bloom_sst_miss_count);
|
|
|
|
// check SST bloom stats
|
|
ASSERT_EQ(value1, Get(key1));
|
|
ASSERT_EQ(1, get_perf_context()->bloom_sst_hit_count);
|
|
ASSERT_EQ(value3, Get(key3));
|
|
ASSERT_EQ(2, get_perf_context()->bloom_sst_hit_count);
|
|
|
|
ASSERT_EQ("NOT_FOUND", Get(key2));
|
|
ASSERT_EQ(1, get_perf_context()->bloom_sst_miss_count);
|
|
}
|
|
|
|
// Same scenario as in BloomStatsTest but using an iterator
|
|
TEST_P(BloomStatsTestWithParam, BloomStatsTestWithIter) {
|
|
std::string key1("AAAA");
|
|
std::string key2("RXDB"); // not in DB
|
|
std::string key3("ZBRA");
|
|
std::string value1("Value1");
|
|
std::string value3("Value3");
|
|
|
|
ASSERT_OK(Put(key1, value1, WriteOptions()));
|
|
ASSERT_OK(Put(key3, value3, WriteOptions()));
|
|
|
|
std::unique_ptr<Iterator> iter(dbfull()->NewIterator(ReadOptions()));
|
|
|
|
// check memtable bloom stats
|
|
iter->Seek(key1);
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(value1, iter->value().ToString());
|
|
ASSERT_EQ(1, get_perf_context()->bloom_memtable_hit_count);
|
|
ASSERT_EQ(0, get_perf_context()->bloom_memtable_miss_count);
|
|
|
|
iter->Seek(key3);
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(value3, iter->value().ToString());
|
|
ASSERT_EQ(2, get_perf_context()->bloom_memtable_hit_count);
|
|
ASSERT_EQ(0, get_perf_context()->bloom_memtable_miss_count);
|
|
|
|
iter->Seek(key2);
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(!iter->Valid());
|
|
ASSERT_EQ(1, get_perf_context()->bloom_memtable_miss_count);
|
|
ASSERT_EQ(2, get_perf_context()->bloom_memtable_hit_count);
|
|
|
|
Flush();
|
|
|
|
iter.reset(dbfull()->NewIterator(ReadOptions()));
|
|
|
|
// Check SST bloom stats
|
|
iter->Seek(key1);
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(value1, iter->value().ToString());
|
|
ASSERT_EQ(1, get_perf_context()->bloom_sst_hit_count);
|
|
|
|
iter->Seek(key3);
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(value3, iter->value().ToString());
|
|
// The seek doesn't check block-based bloom filter because last index key
|
|
// starts with the same prefix we're seeking to.
|
|
uint64_t expected_hits = bfp_impl_ == BFP::kDeprecatedBlock ? 1 : 2;
|
|
ASSERT_EQ(expected_hits, get_perf_context()->bloom_sst_hit_count);
|
|
|
|
iter->Seek(key2);
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(!iter->Valid());
|
|
ASSERT_EQ(1, get_perf_context()->bloom_sst_miss_count);
|
|
ASSERT_EQ(expected_hits, get_perf_context()->bloom_sst_hit_count);
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
BloomStatsTestWithParam, BloomStatsTestWithParam,
|
|
::testing::Values(std::make_tuple(BFP::kDeprecatedBlock, false),
|
|
std::make_tuple(BFP::kLegacyBloom, false),
|
|
std::make_tuple(BFP::kLegacyBloom, true),
|
|
std::make_tuple(BFP::kFastLocalBloom, false),
|
|
std::make_tuple(BFP::kFastLocalBloom, true),
|
|
std::make_tuple(BFP2::kPlainTable, false)));
|
|
|
|
namespace {
|
|
void PrefixScanInit(DBBloomFilterTest* dbtest) {
|
|
char buf[100];
|
|
std::string keystr;
|
|
const int small_range_sstfiles = 5;
|
|
const int big_range_sstfiles = 5;
|
|
|
|
// Generate 11 sst files with the following prefix ranges.
|
|
// GROUP 0: [0,10] (level 1)
|
|
// GROUP 1: [1,2], [2,3], [3,4], [4,5], [5, 6] (level 0)
|
|
// GROUP 2: [0,6], [0,7], [0,8], [0,9], [0,10] (level 0)
|
|
//
|
|
// A seek with the previous API would do 11 random I/Os (to all the
|
|
// files). With the new API and a prefix filter enabled, we should
|
|
// only do 2 random I/O, to the 2 files containing the key.
|
|
|
|
// GROUP 0
|
|
snprintf(buf, sizeof(buf), "%02d______:start", 0);
|
|
keystr = std::string(buf);
|
|
ASSERT_OK(dbtest->Put(keystr, keystr));
|
|
snprintf(buf, sizeof(buf), "%02d______:end", 10);
|
|
keystr = std::string(buf);
|
|
ASSERT_OK(dbtest->Put(keystr, keystr));
|
|
dbtest->Flush();
|
|
dbtest->dbfull()->CompactRange(CompactRangeOptions(), nullptr,
|
|
nullptr); // move to level 1
|
|
|
|
// GROUP 1
|
|
for (int i = 1; i <= small_range_sstfiles; i++) {
|
|
snprintf(buf, sizeof(buf), "%02d______:start", i);
|
|
keystr = std::string(buf);
|
|
ASSERT_OK(dbtest->Put(keystr, keystr));
|
|
snprintf(buf, sizeof(buf), "%02d______:end", i + 1);
|
|
keystr = std::string(buf);
|
|
ASSERT_OK(dbtest->Put(keystr, keystr));
|
|
dbtest->Flush();
|
|
}
|
|
|
|
// GROUP 2
|
|
for (int i = 1; i <= big_range_sstfiles; i++) {
|
|
snprintf(buf, sizeof(buf), "%02d______:start", 0);
|
|
keystr = std::string(buf);
|
|
ASSERT_OK(dbtest->Put(keystr, keystr));
|
|
snprintf(buf, sizeof(buf), "%02d______:end", small_range_sstfiles + i + 1);
|
|
keystr = std::string(buf);
|
|
ASSERT_OK(dbtest->Put(keystr, keystr));
|
|
dbtest->Flush();
|
|
}
|
|
}
|
|
} // namespace
|
|
|
|
TEST_F(DBBloomFilterTest, PrefixScan) {
|
|
while (ChangeFilterOptions()) {
|
|
int count;
|
|
Slice prefix;
|
|
Slice key;
|
|
char buf[100];
|
|
Iterator* iter;
|
|
snprintf(buf, sizeof(buf), "03______:");
|
|
prefix = Slice(buf, 8);
|
|
key = Slice(buf, 9);
|
|
ASSERT_EQ(key.difference_offset(prefix), 8);
|
|
ASSERT_EQ(prefix.difference_offset(key), 8);
|
|
// db configs
|
|
env_->count_random_reads_ = true;
|
|
Options options = CurrentOptions();
|
|
options.env = env_;
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(8));
|
|
options.disable_auto_compactions = true;
|
|
options.max_background_compactions = 2;
|
|
options.create_if_missing = true;
|
|
options.memtable_factory.reset(NewHashSkipListRepFactory(16));
|
|
assert(!options.unordered_write);
|
|
// It is incompatible with allow_concurrent_memtable_write=false
|
|
options.allow_concurrent_memtable_write = false;
|
|
|
|
BlockBasedTableOptions table_options;
|
|
table_options.no_block_cache = true;
|
|
table_options.filter_policy.reset(NewBloomFilterPolicy(10));
|
|
table_options.whole_key_filtering = false;
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
|
|
// 11 RAND I/Os
|
|
DestroyAndReopen(options);
|
|
PrefixScanInit(this);
|
|
count = 0;
|
|
env_->random_read_counter_.Reset();
|
|
iter = db_->NewIterator(ReadOptions());
|
|
for (iter->Seek(prefix); iter->Valid(); iter->Next()) {
|
|
if (!iter->key().starts_with(prefix)) {
|
|
break;
|
|
}
|
|
count++;
|
|
}
|
|
ASSERT_OK(iter->status());
|
|
delete iter;
|
|
ASSERT_EQ(count, 2);
|
|
ASSERT_EQ(env_->random_read_counter_.Read(), 2);
|
|
Close();
|
|
} // end of while
|
|
}
|
|
|
|
TEST_F(DBBloomFilterTest, OptimizeFiltersForHits) {
|
|
Options options = CurrentOptions();
|
|
options.write_buffer_size = 64 * 1024;
|
|
options.arena_block_size = 4 * 1024;
|
|
options.target_file_size_base = 64 * 1024;
|
|
options.level0_file_num_compaction_trigger = 2;
|
|
options.level0_slowdown_writes_trigger = 2;
|
|
options.level0_stop_writes_trigger = 4;
|
|
options.max_bytes_for_level_base = 256 * 1024;
|
|
options.max_write_buffer_number = 2;
|
|
options.max_background_compactions = 8;
|
|
options.max_background_flushes = 8;
|
|
options.compression = kNoCompression;
|
|
options.compaction_style = kCompactionStyleLevel;
|
|
options.level_compaction_dynamic_level_bytes = true;
|
|
BlockBasedTableOptions bbto;
|
|
bbto.cache_index_and_filter_blocks = true;
|
|
bbto.filter_policy.reset(NewBloomFilterPolicy(10, true));
|
|
bbto.whole_key_filtering = true;
|
|
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
options.optimize_filters_for_hits = true;
|
|
options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
|
|
get_perf_context()->Reset();
|
|
get_perf_context()->EnablePerLevelPerfContext();
|
|
CreateAndReopenWithCF({"mypikachu"}, options);
|
|
|
|
int numkeys = 200000;
|
|
|
|
// Generate randomly shuffled keys, so the updates are almost
|
|
// random.
|
|
std::vector<int> keys;
|
|
keys.reserve(numkeys);
|
|
for (int i = 0; i < numkeys; i += 2) {
|
|
keys.push_back(i);
|
|
}
|
|
RandomShuffle(std::begin(keys), std::end(keys));
|
|
int num_inserted = 0;
|
|
for (int key : keys) {
|
|
ASSERT_OK(Put(1, Key(key), "val"));
|
|
if (++num_inserted % 1000 == 0) {
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
dbfull()->TEST_WaitForCompact();
|
|
}
|
|
}
|
|
ASSERT_OK(Put(1, Key(0), "val"));
|
|
ASSERT_OK(Put(1, Key(numkeys), "val"));
|
|
ASSERT_OK(Flush(1));
|
|
dbfull()->TEST_WaitForCompact();
|
|
|
|
if (NumTableFilesAtLevel(0, 1) == 0) {
|
|
// No Level 0 file. Create one.
|
|
ASSERT_OK(Put(1, Key(0), "val"));
|
|
ASSERT_OK(Put(1, Key(numkeys), "val"));
|
|
ASSERT_OK(Flush(1));
|
|
dbfull()->TEST_WaitForCompact();
|
|
}
|
|
|
|
for (int i = 1; i < numkeys; i += 2) {
|
|
ASSERT_EQ(Get(1, Key(i)), "NOT_FOUND");
|
|
}
|
|
|
|
ASSERT_EQ(0, TestGetTickerCount(options, GET_HIT_L0));
|
|
ASSERT_EQ(0, TestGetTickerCount(options, GET_HIT_L1));
|
|
ASSERT_EQ(0, TestGetTickerCount(options, GET_HIT_L2_AND_UP));
|
|
|
|
// Now we have three sorted run, L0, L5 and L6 with most files in L6 have
|
|
// no bloom filter. Most keys be checked bloom filters twice.
|
|
ASSERT_GT(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 65000 * 2);
|
|
ASSERT_LT(TestGetTickerCount(options, BLOOM_FILTER_USEFUL), 120000 * 2);
|
|
uint64_t bloom_filter_useful_all_levels = 0;
|
|
for (auto& kv : (*(get_perf_context()->level_to_perf_context))) {
|
|
if (kv.second.bloom_filter_useful > 0) {
|
|
bloom_filter_useful_all_levels += kv.second.bloom_filter_useful;
|
|
}
|
|
}
|
|
ASSERT_GT(bloom_filter_useful_all_levels, 65000 * 2);
|
|
ASSERT_LT(bloom_filter_useful_all_levels, 120000 * 2);
|
|
|
|
for (int i = 0; i < numkeys; i += 2) {
|
|
ASSERT_EQ(Get(1, Key(i)), "val");
|
|
}
|
|
|
|
// Part 2 (read path): rewrite last level with blooms, then verify they get
|
|
// cached only if !optimize_filters_for_hits
|
|
options.disable_auto_compactions = true;
|
|
options.num_levels = 9;
|
|
options.optimize_filters_for_hits = false;
|
|
options.statistics = CreateDBStatistics();
|
|
bbto.block_cache.reset();
|
|
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
|
|
ReopenWithColumnFamilies({"default", "mypikachu"}, options);
|
|
MoveFilesToLevel(7 /* level */, 1 /* column family index */);
|
|
|
|
std::string value = Get(1, Key(0));
|
|
uint64_t prev_cache_filter_hits =
|
|
TestGetTickerCount(options, BLOCK_CACHE_FILTER_HIT);
|
|
value = Get(1, Key(0));
|
|
ASSERT_EQ(prev_cache_filter_hits + 1,
|
|
TestGetTickerCount(options, BLOCK_CACHE_FILTER_HIT));
|
|
|
|
// Now that we know the filter blocks exist in the last level files, see if
|
|
// filter caching is skipped for this optimization
|
|
options.optimize_filters_for_hits = true;
|
|
options.statistics = CreateDBStatistics();
|
|
bbto.block_cache.reset();
|
|
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
|
|
ReopenWithColumnFamilies({"default", "mypikachu"}, options);
|
|
|
|
value = Get(1, Key(0));
|
|
ASSERT_EQ(0, TestGetTickerCount(options, BLOCK_CACHE_FILTER_MISS));
|
|
ASSERT_EQ(0, TestGetTickerCount(options, BLOCK_CACHE_FILTER_HIT));
|
|
ASSERT_EQ(2 /* index and data block */,
|
|
TestGetTickerCount(options, BLOCK_CACHE_ADD));
|
|
|
|
// Check filter block ignored for files preloaded during DB::Open()
|
|
options.max_open_files = -1;
|
|
options.statistics = CreateDBStatistics();
|
|
bbto.block_cache.reset();
|
|
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
|
|
ReopenWithColumnFamilies({"default", "mypikachu"}, options);
|
|
|
|
uint64_t prev_cache_filter_misses =
|
|
TestGetTickerCount(options, BLOCK_CACHE_FILTER_MISS);
|
|
prev_cache_filter_hits = TestGetTickerCount(options, BLOCK_CACHE_FILTER_HIT);
|
|
Get(1, Key(0));
|
|
ASSERT_EQ(prev_cache_filter_misses,
|
|
TestGetTickerCount(options, BLOCK_CACHE_FILTER_MISS));
|
|
ASSERT_EQ(prev_cache_filter_hits,
|
|
TestGetTickerCount(options, BLOCK_CACHE_FILTER_HIT));
|
|
|
|
// Check filter block ignored for file trivially-moved to bottom level
|
|
bbto.block_cache.reset();
|
|
options.max_open_files = 100; // setting > -1 makes it not preload all files
|
|
options.statistics = CreateDBStatistics();
|
|
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
|
|
ReopenWithColumnFamilies({"default", "mypikachu"}, options);
|
|
|
|
ASSERT_OK(Put(1, Key(numkeys + 1), "val"));
|
|
ASSERT_OK(Flush(1));
|
|
|
|
int32_t trivial_move = 0;
|
|
int32_t non_trivial_move = 0;
|
|
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
|
|
"DBImpl::BackgroundCompaction:TrivialMove",
|
|
[&](void* /*arg*/) { trivial_move++; });
|
|
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
|
|
"DBImpl::BackgroundCompaction:NonTrivial",
|
|
[&](void* /*arg*/) { non_trivial_move++; });
|
|
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
CompactRangeOptions compact_options;
|
|
compact_options.bottommost_level_compaction =
|
|
BottommostLevelCompaction::kSkip;
|
|
compact_options.change_level = true;
|
|
compact_options.target_level = 7;
|
|
db_->CompactRange(compact_options, handles_[1], nullptr, nullptr);
|
|
|
|
ASSERT_EQ(trivial_move, 1);
|
|
ASSERT_EQ(non_trivial_move, 0);
|
|
|
|
prev_cache_filter_hits = TestGetTickerCount(options, BLOCK_CACHE_FILTER_HIT);
|
|
prev_cache_filter_misses =
|
|
TestGetTickerCount(options, BLOCK_CACHE_FILTER_MISS);
|
|
value = Get(1, Key(numkeys + 1));
|
|
ASSERT_EQ(prev_cache_filter_hits,
|
|
TestGetTickerCount(options, BLOCK_CACHE_FILTER_HIT));
|
|
ASSERT_EQ(prev_cache_filter_misses,
|
|
TestGetTickerCount(options, BLOCK_CACHE_FILTER_MISS));
|
|
|
|
// Check filter block not cached for iterator
|
|
bbto.block_cache.reset();
|
|
options.statistics = CreateDBStatistics();
|
|
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
|
|
ReopenWithColumnFamilies({"default", "mypikachu"}, options);
|
|
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(ReadOptions(), handles_[1]));
|
|
iter->SeekToFirst();
|
|
ASSERT_EQ(0, TestGetTickerCount(options, BLOCK_CACHE_FILTER_MISS));
|
|
ASSERT_EQ(0, TestGetTickerCount(options, BLOCK_CACHE_FILTER_HIT));
|
|
ASSERT_EQ(2 /* index and data block */,
|
|
TestGetTickerCount(options, BLOCK_CACHE_ADD));
|
|
get_perf_context()->Reset();
|
|
}
|
|
|
|
int CountIter(std::unique_ptr<Iterator>& iter, const Slice& key) {
|
|
int count = 0;
|
|
for (iter->Seek(key); iter->Valid() && iter->status() == Status::OK();
|
|
iter->Next()) {
|
|
count++;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
// use iterate_upper_bound to hint compatiability of existing bloom filters.
|
|
// The BF is considered compatible if 1) upper bound and seek key transform
|
|
// into the same string, or 2) the transformed seek key is of the same length
|
|
// as the upper bound and two keys are adjacent according to the comparator.
|
|
TEST_F(DBBloomFilterTest, DynamicBloomFilterUpperBound) {
|
|
for (auto bfp_impl : BFP::kAllFixedImpls) {
|
|
int using_full_builder = bfp_impl != BFP::kDeprecatedBlock;
|
|
Options options;
|
|
options.create_if_missing = true;
|
|
options.env = CurrentOptions().env;
|
|
options.prefix_extractor.reset(NewCappedPrefixTransform(4));
|
|
options.disable_auto_compactions = true;
|
|
options.statistics = CreateDBStatistics();
|
|
// Enable prefix bloom for SST files
|
|
BlockBasedTableOptions table_options;
|
|
table_options.cache_index_and_filter_blocks = true;
|
|
table_options.filter_policy.reset(new BFP(10, bfp_impl));
|
|
table_options.index_shortening = BlockBasedTableOptions::
|
|
IndexShorteningMode::kShortenSeparatorsAndSuccessor;
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
DestroyAndReopen(options);
|
|
|
|
ASSERT_OK(Put("abcdxxx0", "val1"));
|
|
ASSERT_OK(Put("abcdxxx1", "val2"));
|
|
ASSERT_OK(Put("abcdxxx2", "val3"));
|
|
ASSERT_OK(Put("abcdxxx3", "val4"));
|
|
dbfull()->Flush(FlushOptions());
|
|
{
|
|
// prefix_extractor has not changed, BF will always be read
|
|
Slice upper_bound("abce");
|
|
ReadOptions read_options;
|
|
read_options.prefix_same_as_start = true;
|
|
read_options.iterate_upper_bound = &upper_bound;
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter, "abcd0000"), 4);
|
|
}
|
|
{
|
|
Slice upper_bound("abcdzzzz");
|
|
ReadOptions read_options;
|
|
read_options.prefix_same_as_start = true;
|
|
read_options.iterate_upper_bound = &upper_bound;
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter, "abcd0000"), 4);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED), 2);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
}
|
|
ASSERT_OK(dbfull()->SetOptions({{"prefix_extractor", "fixed:5"}}));
|
|
ASSERT_EQ(0, strcmp(dbfull()->GetOptions().prefix_extractor->Name(),
|
|
"rocksdb.FixedPrefix.5"));
|
|
{
|
|
// BF changed, [abcdxx00, abce) is a valid bound, will trigger BF read
|
|
Slice upper_bound("abce");
|
|
ReadOptions read_options;
|
|
read_options.prefix_same_as_start = true;
|
|
read_options.iterate_upper_bound = &upper_bound;
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter, "abcdxx00"), 4);
|
|
// should check bloom filter since upper bound meets requirement
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
2 + using_full_builder);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
}
|
|
{
|
|
// [abcdxx01, abcey) is not valid bound since upper bound is too long for
|
|
// the BF in SST (capped:4)
|
|
Slice upper_bound("abcey");
|
|
ReadOptions read_options;
|
|
read_options.prefix_same_as_start = true;
|
|
read_options.iterate_upper_bound = &upper_bound;
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter, "abcdxx01"), 4);
|
|
// should skip bloom filter since upper bound is too long
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
2 + using_full_builder);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
}
|
|
{
|
|
// [abcdxx02, abcdy) is a valid bound since the prefix is the same
|
|
Slice upper_bound("abcdy");
|
|
ReadOptions read_options;
|
|
read_options.prefix_same_as_start = true;
|
|
read_options.iterate_upper_bound = &upper_bound;
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter, "abcdxx02"), 4);
|
|
// should check bloom filter since upper bound matches transformed seek
|
|
// key
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
2 + using_full_builder * 2);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
}
|
|
{
|
|
// [aaaaaaaa, abce) is not a valid bound since 1) they don't share the
|
|
// same prefix, 2) the prefixes are not consecutive
|
|
Slice upper_bound("abce");
|
|
ReadOptions read_options;
|
|
read_options.prefix_same_as_start = true;
|
|
read_options.iterate_upper_bound = &upper_bound;
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter, "aaaaaaaa"), 0);
|
|
// should skip bloom filter since mismatch is found
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
2 + using_full_builder * 2);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
}
|
|
ASSERT_OK(dbfull()->SetOptions({{"prefix_extractor", "fixed:3"}}));
|
|
{
|
|
// [abc, abd) is not a valid bound since the upper bound is too short
|
|
// for BF (capped:4)
|
|
Slice upper_bound("abd");
|
|
ReadOptions read_options;
|
|
read_options.prefix_same_as_start = true;
|
|
read_options.iterate_upper_bound = &upper_bound;
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter, "abc"), 4);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
2 + using_full_builder * 2);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
}
|
|
ASSERT_OK(dbfull()->SetOptions({{"prefix_extractor", "capped:4"}}));
|
|
{
|
|
// set back to capped:4 and verify BF is always read
|
|
Slice upper_bound("abd");
|
|
ReadOptions read_options;
|
|
read_options.prefix_same_as_start = true;
|
|
read_options.iterate_upper_bound = &upper_bound;
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter, "abc"), 0);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
3 + using_full_builder * 2);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Create multiple SST files each with a different prefix_extractor config,
|
|
// verify iterators can read all SST files using the latest config.
|
|
TEST_F(DBBloomFilterTest, DynamicBloomFilterMultipleSST) {
|
|
for (auto bfp_impl : BFP::kAllFixedImpls) {
|
|
int using_full_builder = bfp_impl != BFP::kDeprecatedBlock;
|
|
Options options;
|
|
options.env = CurrentOptions().env;
|
|
options.create_if_missing = true;
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(1));
|
|
options.disable_auto_compactions = true;
|
|
options.statistics = CreateDBStatistics();
|
|
// Enable prefix bloom for SST files
|
|
BlockBasedTableOptions table_options;
|
|
table_options.filter_policy.reset(new BFP(10, bfp_impl));
|
|
table_options.cache_index_and_filter_blocks = true;
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
DestroyAndReopen(options);
|
|
|
|
Slice upper_bound("foz90000");
|
|
ReadOptions read_options;
|
|
read_options.prefix_same_as_start = true;
|
|
|
|
// first SST with fixed:1 BF
|
|
ASSERT_OK(Put("foo2", "bar2"));
|
|
ASSERT_OK(Put("foo", "bar"));
|
|
ASSERT_OK(Put("foq1", "bar1"));
|
|
ASSERT_OK(Put("fpa", "0"));
|
|
dbfull()->Flush(FlushOptions());
|
|
std::unique_ptr<Iterator> iter_old(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter_old, "foo"), 4);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED), 1);
|
|
|
|
ASSERT_OK(dbfull()->SetOptions({{"prefix_extractor", "capped:3"}}));
|
|
ASSERT_EQ(0, strcmp(dbfull()->GetOptions().prefix_extractor->Name(),
|
|
"rocksdb.CappedPrefix.3"));
|
|
read_options.iterate_upper_bound = &upper_bound;
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter, "foo"), 2);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
1 + using_full_builder);
|
|
ASSERT_EQ(CountIter(iter, "gpk"), 0);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
1 + using_full_builder);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
|
|
// second SST with capped:3 BF
|
|
ASSERT_OK(Put("foo3", "bar3"));
|
|
ASSERT_OK(Put("foo4", "bar4"));
|
|
ASSERT_OK(Put("foq5", "bar5"));
|
|
ASSERT_OK(Put("fpb", "1"));
|
|
dbfull()->Flush(FlushOptions());
|
|
{
|
|
// BF is cappped:3 now
|
|
std::unique_ptr<Iterator> iter_tmp(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter_tmp, "foo"), 4);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
2 + using_full_builder * 2);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
ASSERT_EQ(CountIter(iter_tmp, "gpk"), 0);
|
|
// both counters are incremented because BF is "not changed" for 1 of the
|
|
// 2 SST files, so filter is checked once and found no match.
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
3 + using_full_builder * 2);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 1);
|
|
}
|
|
|
|
ASSERT_OK(dbfull()->SetOptions({{"prefix_extractor", "fixed:2"}}));
|
|
ASSERT_EQ(0, strcmp(dbfull()->GetOptions().prefix_extractor->Name(),
|
|
"rocksdb.FixedPrefix.2"));
|
|
// third SST with fixed:2 BF
|
|
ASSERT_OK(Put("foo6", "bar6"));
|
|
ASSERT_OK(Put("foo7", "bar7"));
|
|
ASSERT_OK(Put("foq8", "bar8"));
|
|
ASSERT_OK(Put("fpc", "2"));
|
|
dbfull()->Flush(FlushOptions());
|
|
{
|
|
// BF is fixed:2 now
|
|
std::unique_ptr<Iterator> iter_tmp(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter_tmp, "foo"), 9);
|
|
// the first and last BF are checked
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
4 + using_full_builder * 3);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 1);
|
|
ASSERT_EQ(CountIter(iter_tmp, "gpk"), 0);
|
|
// only last BF is checked and not found
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
5 + using_full_builder * 3);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 2);
|
|
}
|
|
|
|
// iter_old can only see the first SST, so checked plus 1
|
|
ASSERT_EQ(CountIter(iter_old, "foo"), 4);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
6 + using_full_builder * 3);
|
|
// iter was created after the first setoptions call so only full filter
|
|
// will check the filter
|
|
ASSERT_EQ(CountIter(iter, "foo"), 2);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
6 + using_full_builder * 4);
|
|
|
|
{
|
|
// keys in all three SSTs are visible to iterator
|
|
// The range of [foo, foz90000] is compatible with (fixed:1) and (fixed:2)
|
|
// so +2 for checked counter
|
|
std::unique_ptr<Iterator> iter_all(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter_all, "foo"), 9);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
7 + using_full_builder * 5);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 2);
|
|
ASSERT_EQ(CountIter(iter_all, "gpk"), 0);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
8 + using_full_builder * 5);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 3);
|
|
}
|
|
ASSERT_OK(dbfull()->SetOptions({{"prefix_extractor", "capped:3"}}));
|
|
ASSERT_EQ(0, strcmp(dbfull()->GetOptions().prefix_extractor->Name(),
|
|
"rocksdb.CappedPrefix.3"));
|
|
{
|
|
std::unique_ptr<Iterator> iter_all(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter_all, "foo"), 6);
|
|
// all three SST are checked because the current options has the same as
|
|
// the remaining SST (capped:3)
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
9 + using_full_builder * 7);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 3);
|
|
ASSERT_EQ(CountIter(iter_all, "gpk"), 0);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED),
|
|
10 + using_full_builder * 7);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 4);
|
|
}
|
|
// TODO(Zhongyi): Maybe also need to add Get calls to test point look up?
|
|
}
|
|
}
|
|
|
|
// Create a new column family in a running DB, change prefix_extractor
|
|
// dynamically, verify the iterator created on the new column family behaves
|
|
// as expected
|
|
TEST_F(DBBloomFilterTest, DynamicBloomFilterNewColumnFamily) {
|
|
int iteration = 0;
|
|
for (auto bfp_impl : BFP::kAllFixedImpls) {
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(1));
|
|
options.disable_auto_compactions = true;
|
|
options.statistics = CreateDBStatistics();
|
|
// Enable prefix bloom for SST files
|
|
BlockBasedTableOptions table_options;
|
|
table_options.cache_index_and_filter_blocks = true;
|
|
table_options.filter_policy.reset(new BFP(10, bfp_impl));
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
CreateAndReopenWithCF({"pikachu" + std::to_string(iteration)}, options);
|
|
ReadOptions read_options;
|
|
read_options.prefix_same_as_start = true;
|
|
// create a new CF and set prefix_extractor dynamically
|
|
options.prefix_extractor.reset(NewCappedPrefixTransform(3));
|
|
CreateColumnFamilies({"ramen_dojo_" + std::to_string(iteration)}, options);
|
|
ASSERT_EQ(0,
|
|
strcmp(dbfull()->GetOptions(handles_[2]).prefix_extractor->Name(),
|
|
"rocksdb.CappedPrefix.3"));
|
|
ASSERT_OK(Put(2, "foo3", "bar3"));
|
|
ASSERT_OK(Put(2, "foo4", "bar4"));
|
|
ASSERT_OK(Put(2, "foo5", "bar5"));
|
|
ASSERT_OK(Put(2, "foq6", "bar6"));
|
|
ASSERT_OK(Put(2, "fpq7", "bar7"));
|
|
dbfull()->Flush(FlushOptions());
|
|
{
|
|
std::unique_ptr<Iterator> iter(
|
|
db_->NewIterator(read_options, handles_[2]));
|
|
ASSERT_EQ(CountIter(iter, "foo"), 3);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED), 0);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
}
|
|
ASSERT_OK(
|
|
dbfull()->SetOptions(handles_[2], {{"prefix_extractor", "fixed:2"}}));
|
|
ASSERT_EQ(0,
|
|
strcmp(dbfull()->GetOptions(handles_[2]).prefix_extractor->Name(),
|
|
"rocksdb.FixedPrefix.2"));
|
|
{
|
|
std::unique_ptr<Iterator> iter(
|
|
db_->NewIterator(read_options, handles_[2]));
|
|
ASSERT_EQ(CountIter(iter, "foo"), 4);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED), 0);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
}
|
|
ASSERT_OK(dbfull()->DropColumnFamily(handles_[2]));
|
|
dbfull()->DestroyColumnFamilyHandle(handles_[2]);
|
|
handles_[2] = nullptr;
|
|
ASSERT_OK(dbfull()->DropColumnFamily(handles_[1]));
|
|
dbfull()->DestroyColumnFamilyHandle(handles_[1]);
|
|
handles_[1] = nullptr;
|
|
iteration++;
|
|
}
|
|
}
|
|
|
|
// Verify it's possible to change prefix_extractor at runtime and iterators
|
|
// behaves as expected
|
|
TEST_F(DBBloomFilterTest, DynamicBloomFilterOptions) {
|
|
for (auto bfp_impl : BFP::kAllFixedImpls) {
|
|
Options options;
|
|
options.env = CurrentOptions().env;
|
|
options.create_if_missing = true;
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(1));
|
|
options.disable_auto_compactions = true;
|
|
options.statistics = CreateDBStatistics();
|
|
// Enable prefix bloom for SST files
|
|
BlockBasedTableOptions table_options;
|
|
table_options.cache_index_and_filter_blocks = true;
|
|
table_options.filter_policy.reset(new BFP(10, bfp_impl));
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
DestroyAndReopen(options);
|
|
|
|
ASSERT_OK(Put("foo2", "bar2"));
|
|
ASSERT_OK(Put("foo", "bar"));
|
|
ASSERT_OK(Put("foo1", "bar1"));
|
|
ASSERT_OK(Put("fpa", "0"));
|
|
dbfull()->Flush(FlushOptions());
|
|
ASSERT_OK(Put("foo3", "bar3"));
|
|
ASSERT_OK(Put("foo4", "bar4"));
|
|
ASSERT_OK(Put("foo5", "bar5"));
|
|
ASSERT_OK(Put("fpb", "1"));
|
|
dbfull()->Flush(FlushOptions());
|
|
ASSERT_OK(Put("foo6", "bar6"));
|
|
ASSERT_OK(Put("foo7", "bar7"));
|
|
ASSERT_OK(Put("foo8", "bar8"));
|
|
ASSERT_OK(Put("fpc", "2"));
|
|
dbfull()->Flush(FlushOptions());
|
|
|
|
ReadOptions read_options;
|
|
read_options.prefix_same_as_start = true;
|
|
{
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter, "foo"), 12);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED), 3);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
}
|
|
std::unique_ptr<Iterator> iter_old(db_->NewIterator(read_options));
|
|
ASSERT_EQ(CountIter(iter_old, "foo"), 12);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED), 6);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
|
|
ASSERT_OK(dbfull()->SetOptions({{"prefix_extractor", "capped:3"}}));
|
|
ASSERT_EQ(0, strcmp(dbfull()->GetOptions().prefix_extractor->Name(),
|
|
"rocksdb.CappedPrefix.3"));
|
|
{
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
// "fp*" should be skipped
|
|
ASSERT_EQ(CountIter(iter, "foo"), 9);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED), 6);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
}
|
|
|
|
// iterator created before should not be affected and see all keys
|
|
ASSERT_EQ(CountIter(iter_old, "foo"), 12);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED), 9);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 0);
|
|
ASSERT_EQ(CountIter(iter_old, "abc"), 0);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_CHECKED), 12);
|
|
ASSERT_EQ(TestGetTickerCount(options, BLOOM_FILTER_PREFIX_USEFUL), 3);
|
|
}
|
|
}
|
|
|
|
#endif // ROCKSDB_LITE
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
int main(int argc, char** argv) {
|
|
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|