Revision eb9026f09bfd0582652cffa6a2390e9b55285b7f authored by anand76 on 10 September 2019, 18:03:31 UTC, committed by Facebook Github Bot on 10 September 2019, 18:06:36 UTC
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/5707 Differential Revision: D17242698 Pulled By: anand1976 fbshipit-source-id: 5d1bfda3c9e8f56176ae391cae6c91e6262016b8
1 parent 4d945c5
block_based_filter_block_test.cc
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "table/block_based/block_based_filter_block.h"
#include "rocksdb/filter_policy.h"
#include "table/block_based/block_based_table_reader.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
#include "util/coding.h"
#include "util/hash.h"
#include "util/string_util.h"
namespace rocksdb {
// For testing: emit an array with one hash value per key
class TestHashFilter : public FilterPolicy {
public:
const char* Name() const override { return "TestHashFilter"; }
void CreateFilter(const Slice* keys, int n, std::string* dst) const override {
for (int i = 0; i < n; i++) {
uint32_t h = Hash(keys[i].data(), keys[i].size(), 1);
PutFixed32(dst, h);
}
}
bool KeyMayMatch(const Slice& key, const Slice& filter) const override {
uint32_t h = Hash(key.data(), key.size(), 1);
for (unsigned int i = 0; i + 4 <= filter.size(); i += 4) {
if (h == DecodeFixed32(filter.data() + i)) {
return true;
}
}
return false;
}
};
class MockBlockBasedTable : public BlockBasedTable {
public:
explicit MockBlockBasedTable(Rep* rep)
: BlockBasedTable(rep, nullptr /* block_cache_tracer */) {}
};
class FilterBlockTest : public testing::Test {
public:
Options options_;
ImmutableCFOptions ioptions_;
EnvOptions env_options_;
BlockBasedTableOptions table_options_;
InternalKeyComparator icomp_;
std::unique_ptr<BlockBasedTable> table_;
FilterBlockTest()
: ioptions_(options_),
env_options_(options_),
icomp_(options_.comparator) {
table_options_.filter_policy.reset(new TestHashFilter);
constexpr bool skip_filters = false;
constexpr int level = 0;
constexpr bool immortal_table = false;
table_.reset(new MockBlockBasedTable(
new BlockBasedTable::Rep(ioptions_, env_options_, table_options_,
icomp_, skip_filters, level, immortal_table)));
}
};
TEST_F(FilterBlockTest, EmptyBuilder) {
BlockBasedFilterBlockBuilder builder(nullptr, table_options_);
Slice slice(builder.Finish());
ASSERT_EQ("\\x00\\x00\\x00\\x00\\x0b", EscapeString(slice));
CachableEntry<BlockContents> block(
new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
true /* own_value */);
BlockBasedFilterBlockReader reader(table_.get(), std::move(block));
ASSERT_TRUE(reader.KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader.KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/100000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
}
TEST_F(FilterBlockTest, SingleChunk) {
BlockBasedFilterBlockBuilder builder(nullptr, table_options_);
ASSERT_EQ(0, builder.NumAdded());
builder.StartBlock(100);
builder.Add("foo");
builder.Add("bar");
builder.Add("box");
builder.StartBlock(200);
builder.Add("box");
builder.StartBlock(300);
builder.Add("hello");
ASSERT_EQ(5, builder.NumAdded());
Slice slice(builder.Finish());
CachableEntry<BlockContents> block(
new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
true /* own_value */);
BlockBasedFilterBlockReader reader(table_.get(), std::move(block));
ASSERT_TRUE(reader.KeyMayMatch("foo", /*prefix_extractor=*/nullptr,
/*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
/*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader.KeyMayMatch("bar", /*prefix_extractor=*/nullptr,
/*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
/*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader.KeyMayMatch("box", /*prefix_extractor=*/nullptr,
/*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
/*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader.KeyMayMatch("hello", /*prefix_extractor=*/nullptr,
/*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
/*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader.KeyMayMatch("foo", /*prefix_extractor=*/nullptr,
/*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
/*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"missing", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"other", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
}
TEST_F(FilterBlockTest, MultiChunk) {
BlockBasedFilterBlockBuilder builder(nullptr, table_options_);
// First filter
builder.StartBlock(0);
builder.Add("foo");
builder.StartBlock(2000);
builder.Add("bar");
// Second filter
builder.StartBlock(3100);
builder.Add("box");
// Third filter is empty
// Last filter
builder.StartBlock(9000);
builder.Add("box");
builder.Add("hello");
Slice slice(builder.Finish());
CachableEntry<BlockContents> block(
new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
true /* own_value */);
BlockBasedFilterBlockReader reader(table_.get(), std::move(block));
// Check first filter
ASSERT_TRUE(reader.KeyMayMatch("foo", /*prefix_extractor=*/nullptr,
/*block_offset=*/uint64_t{0},
/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
/*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader.KeyMayMatch("bar", /*prefix_extractor=*/nullptr,
/*block_offset=*/2000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
/*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"box", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
// Check second filter
ASSERT_TRUE(reader.KeyMayMatch("box", /*prefix_extractor=*/nullptr,
/*block_offset=*/3100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
/*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
// Check third filter (empty)
ASSERT_TRUE(!reader.KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"box", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
// Check last filter
ASSERT_TRUE(reader.KeyMayMatch("box", /*prefix_extractor=*/nullptr,
/*block_offset=*/9000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
/*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader.KeyMayMatch("hello", /*prefix_extractor=*/nullptr,
/*block_offset=*/9000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
/*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader.KeyMayMatch(
"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
}
// Test for block based filter block
// use new interface in FilterPolicy to create filter builder/reader
class BlockBasedFilterBlockTest : public testing::Test {
public:
Options options_;
ImmutableCFOptions ioptions_;
EnvOptions env_options_;
BlockBasedTableOptions table_options_;
InternalKeyComparator icomp_;
std::unique_ptr<BlockBasedTable> table_;
BlockBasedFilterBlockTest()
: ioptions_(options_),
env_options_(options_),
icomp_(options_.comparator) {
table_options_.filter_policy.reset(NewBloomFilterPolicy(10));
constexpr bool skip_filters = false;
constexpr int level = 0;
constexpr bool immortal_table = false;
table_.reset(new MockBlockBasedTable(
new BlockBasedTable::Rep(ioptions_, env_options_, table_options_,
icomp_, skip_filters, level, immortal_table)));
}
};
TEST_F(BlockBasedFilterBlockTest, BlockBasedEmptyBuilder) {
FilterBlockBuilder* builder =
new BlockBasedFilterBlockBuilder(nullptr, table_options_);
Slice slice(builder->Finish());
ASSERT_EQ("\\x00\\x00\\x00\\x00\\x0b", EscapeString(slice));
CachableEntry<BlockContents> block(
new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
true /* own_value */);
FilterBlockReader* reader =
new BlockBasedFilterBlockReader(table_.get(), std::move(block));
ASSERT_TRUE(reader->KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader->KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/10000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
delete builder;
delete reader;
}
TEST_F(BlockBasedFilterBlockTest, BlockBasedSingleChunk) {
FilterBlockBuilder* builder =
new BlockBasedFilterBlockBuilder(nullptr, table_options_);
builder->StartBlock(100);
builder->Add("foo");
builder->Add("bar");
builder->Add("box");
builder->StartBlock(200);
builder->Add("box");
builder->StartBlock(300);
builder->Add("hello");
Slice slice(builder->Finish());
CachableEntry<BlockContents> block(
new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
true /* own_value */);
FilterBlockReader* reader =
new BlockBasedFilterBlockReader(table_.get(), std::move(block));
ASSERT_TRUE(reader->KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader->KeyMayMatch(
"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader->KeyMayMatch(
"box", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader->KeyMayMatch(
"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader->KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"missing", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"other", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
delete builder;
delete reader;
}
TEST_F(BlockBasedFilterBlockTest, BlockBasedMultiChunk) {
FilterBlockBuilder* builder =
new BlockBasedFilterBlockBuilder(nullptr, table_options_);
// First filter
builder->StartBlock(0);
builder->Add("foo");
builder->StartBlock(2000);
builder->Add("bar");
// Second filter
builder->StartBlock(3100);
builder->Add("box");
// Third filter is empty
// Last filter
builder->StartBlock(9000);
builder->Add("box");
builder->Add("hello");
Slice slice(builder->Finish());
CachableEntry<BlockContents> block(
new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
true /* own_value */);
FilterBlockReader* reader =
new BlockBasedFilterBlockReader(table_.get(), std::move(block));
// Check first filter
ASSERT_TRUE(reader->KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader->KeyMayMatch(
"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/2000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"box", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
// Check second filter
ASSERT_TRUE(reader->KeyMayMatch(
"box", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
// Check third filter (empty)
ASSERT_TRUE(!reader->KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"box", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
// Check last filter
ASSERT_TRUE(reader->KeyMayMatch(
"box", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(reader->KeyMayMatch(
"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
ASSERT_TRUE(!reader->KeyMayMatch(
"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
/*lookup_context=*/nullptr));
delete builder;
delete reader;
}
} // namespace rocksdb
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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