mirror of https://github.com/facebook/rocksdb.git
506 lines
18 KiB
C++
506 lines
18 KiB
C++
// Copyright (c) 2020-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#include "test_util/testharness.h"
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#ifdef OS_LINUX
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#include "env/io_posix.h"
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#include "rocksdb/db.h"
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#include "rocksdb/env.h"
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namespace ROCKSDB_NAMESPACE {
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class EnvWithCustomLogicalBlockSizeCache : public EnvWrapper {
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public:
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EnvWithCustomLogicalBlockSizeCache(Env* env, LogicalBlockSizeCache* cache)
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: EnvWrapper(env), cache_(cache) {}
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Status RegisterDbPaths(const std::vector<std::string>& paths) override {
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return cache_->RefAndCacheLogicalBlockSize(paths);
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}
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Status UnregisterDbPaths(const std::vector<std::string>& paths) override {
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cache_->UnrefAndTryRemoveCachedLogicalBlockSize(paths);
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return Status::OK();
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}
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private:
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LogicalBlockSizeCache* cache_;
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};
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class DBLogicalBlockSizeCacheTest : public testing::Test {
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public:
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DBLogicalBlockSizeCacheTest()
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: dbname_(test::PerThreadDBPath("logical_block_size_cache_test")),
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data_path_0_(dbname_ + "/data_path_0"),
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data_path_1_(dbname_ + "/data_path_1"),
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cf_path_0_(dbname_ + "/cf_path_0"),
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cf_path_1_(dbname_ + "/cf_path_1") {
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auto get_fd_block_size = [&](int fd) { return fd; };
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auto get_dir_block_size = [&](const std::string& /*dir*/, size_t* size) {
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*size = 1024;
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return Status::OK();
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};
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cache_.reset(
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new LogicalBlockSizeCache(get_fd_block_size, get_dir_block_size));
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env_.reset(
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new EnvWithCustomLogicalBlockSizeCache(Env::Default(), cache_.get()));
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}
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protected:
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std::string dbname_;
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std::string data_path_0_;
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std::string data_path_1_;
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std::string cf_path_0_;
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std::string cf_path_1_;
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std::unique_ptr<LogicalBlockSizeCache> cache_;
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std::unique_ptr<Env> env_;
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};
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TEST_F(DBLogicalBlockSizeCacheTest, OpenClose) {
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// Tests that Open will cache the logical block size for data paths,
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// and Close will remove the cached sizes.
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Options options;
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options.create_if_missing = true;
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options.env = env_.get();
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options.db_paths = {{data_path_0_, 2048}, {data_path_1_, 2048}};
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for (int i = 0; i < 2; i++) {
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DB* db;
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if (!i) {
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printf("Open\n");
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ASSERT_OK(DB::Open(options, dbname_, &db));
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} else {
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printf("OpenForReadOnly\n");
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ASSERT_OK(DB::OpenForReadOnly(options, dbname_, &db));
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}
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(data_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(data_path_0_));
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ASSERT_TRUE(cache_->Contains(data_path_1_));
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ASSERT_EQ(1, cache_->GetRefCount(data_path_1_));
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ASSERT_OK(db->Close());
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ASSERT_EQ(0, cache_->Size());
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delete db;
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}
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ASSERT_OK(DestroyDB(dbname_, options, {}));
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}
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TEST_F(DBLogicalBlockSizeCacheTest, OpenDelete) {
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// Tests that Open will cache the logical block size for data paths,
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// and delete the db pointer will remove the cached sizes.
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Options options;
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options.create_if_missing = true;
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options.env = env_.get();
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for (int i = 0; i < 2; i++) {
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DB* db;
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if (!i) {
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printf("Open\n");
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ASSERT_OK(DB::Open(options, dbname_, &db));
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} else {
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printf("OpenForReadOnly\n");
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ASSERT_OK(DB::OpenForReadOnly(options, dbname_, &db));
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}
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ASSERT_EQ(1, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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delete db;
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ASSERT_EQ(0, cache_->Size());
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}
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ASSERT_OK(DestroyDB(dbname_, options, {}));
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}
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TEST_F(DBLogicalBlockSizeCacheTest, CreateColumnFamily) {
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// Tests that CreateColumnFamily will cache the cf_paths,
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// drop the column family handle won't drop the cache,
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// drop and then delete the column family handle will drop the cache.
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Options options;
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options.create_if_missing = true;
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options.env = env_.get();
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ColumnFamilyOptions cf_options;
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cf_options.cf_paths = {{cf_path_0_, 1024}, {cf_path_1_, 2048}};
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DB* db;
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ASSERT_OK(DB::Open(options, dbname_, &db));
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ASSERT_EQ(1, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ColumnFamilyHandle* cf = nullptr;
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ASSERT_OK(db->CreateColumnFamily(cf_options, "cf", &cf));
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ASSERT_EQ(3, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
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ASSERT_TRUE(cache_->Contains(cf_path_1_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_1_));
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// Drop column family does not drop cache.
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ASSERT_OK(db->DropColumnFamily(cf));
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ASSERT_EQ(3, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
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ASSERT_TRUE(cache_->Contains(cf_path_1_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_1_));
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// Delete handle will drop cache.
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ASSERT_OK(db->DestroyColumnFamilyHandle(cf));
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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delete db;
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ASSERT_EQ(0, cache_->Size());
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ASSERT_OK(DestroyDB(dbname_, options, {{"cf", cf_options}}));
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}
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TEST_F(DBLogicalBlockSizeCacheTest, CreateColumnFamilies) {
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// To test:
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// (1) CreateColumnFamilies will cache the cf_paths in
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// DBLogicalBlockSizeCache
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// (2) Dropping column family handles associated with
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// that cf_paths won't drop the cached cf_paths
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// (3) Deleting all the column family handles associated
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// with that cf_paths will drop the cached cf_paths
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Options options;
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options.create_if_missing = true;
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options.env = env_.get();
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ColumnFamilyOptions cf_options;
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cf_options.cf_paths = {{cf_path_0_, 1024}};
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DB* db;
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ASSERT_OK(DB::Open(options, dbname_, &db));
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ASSERT_EQ(1, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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std::vector<ColumnFamilyHandle*> cfs;
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ASSERT_OK(db->CreateColumnFamilies(cf_options, {"cf1", "cf2"}, &cfs));
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(2, cache_->GetRefCount(cf_path_0_));
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// Drop column family does not drop cf_path_0_'s entry from cache
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for (ColumnFamilyHandle* cf : cfs) {
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ASSERT_OK(db->DropColumnFamily(cf));
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(2, cache_->GetRefCount(cf_path_0_));
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}
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// Delete one cf handle will not drop cf_path_0_'s entry from cache because
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// another handle is still referencing cf_path_0_.
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ASSERT_OK(db->DestroyColumnFamilyHandle(cfs[0]));
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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// Delete all cf handles and ensure the ref count of cf_path_0_ in cache_
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// can be properly decreased by releasing any background reference to the
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// ColumnFamilyData during db deletion
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ASSERT_OK(db->DestroyColumnFamilyHandle(cfs[1]));
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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delete db;
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// Now cf_path_0_ in cache_ has been properly decreased and cf_path_0_'s entry
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// is dropped from cache
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ASSERT_EQ(0, cache_->Size());
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ASSERT_OK(
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DestroyDB(dbname_, options, {{"cf1", cf_options}, {"cf2", cf_options}}));
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}
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TEST_F(DBLogicalBlockSizeCacheTest, OpenWithColumnFamilies) {
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// Tests that Open two column families with the same cf_path will cache the
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// cf_path and have 2 references to the cached size,
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// drop the column family handle won't drop the cache,
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// drop and then delete the column family handle will drop the cache.
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Options options;
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options.create_if_missing = true;
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options.env = env_.get();
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ColumnFamilyOptions cf_options;
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cf_options.cf_paths = {{cf_path_0_, 1024}};
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for (int i = 0; i < 2; i++) {
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DB* db;
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ColumnFamilyHandle* cf1 = nullptr;
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ColumnFamilyHandle* cf2 = nullptr;
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ASSERT_OK(DB::Open(options, dbname_, &db));
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ASSERT_OK(db->CreateColumnFamily(cf_options, "cf1", &cf1));
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ASSERT_OK(db->CreateColumnFamily(cf_options, "cf2", &cf2));
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ASSERT_OK(db->DestroyColumnFamilyHandle(cf1));
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ASSERT_OK(db->DestroyColumnFamilyHandle(cf2));
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delete db;
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ASSERT_EQ(0, cache_->Size());
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std::vector<ColumnFamilyHandle*> cfs;
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if (!i) {
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printf("Open\n");
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ASSERT_OK(DB::Open(options, dbname_,
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{{"cf1", cf_options},
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{"cf2", cf_options},
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{"default", ColumnFamilyOptions()}},
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&cfs, &db));
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} else {
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printf("OpenForReadOnly\n");
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ASSERT_OK(DB::OpenForReadOnly(options, dbname_,
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{{"cf1", cf_options},
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{"cf2", cf_options},
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{"default", ColumnFamilyOptions()}},
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&cfs, &db));
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}
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// Logical block sizes of dbname_ and cf_path_0_ are cached during Open.
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(2, cache_->GetRefCount(cf_path_0_));
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// Drop handles won't drop the cache.
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ASSERT_OK(db->DropColumnFamily(cfs[0]));
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ASSERT_OK(db->DropColumnFamily(cfs[1]));
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(2, cache_->GetRefCount(cf_path_0_));
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// Delete 1st handle won't drop the cache for cf_path_0_.
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ASSERT_OK(db->DestroyColumnFamilyHandle(cfs[0]));
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
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// Delete 2nd handle will drop the cache for cf_path_0_.
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ASSERT_OK(db->DestroyColumnFamilyHandle(cfs[1]));
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ASSERT_EQ(1, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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// Delete the default handle won't affect the cache because db still refers
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// to the default CF.
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ASSERT_OK(db->DestroyColumnFamilyHandle(cfs[2]));
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ASSERT_EQ(1, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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delete db;
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ASSERT_EQ(0, cache_->Size());
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}
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ASSERT_OK(
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DestroyDB(dbname_, options, {{"cf1", cf_options}, {"cf2", cf_options}}));
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}
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TEST_F(DBLogicalBlockSizeCacheTest, DestroyColumnFamilyHandle) {
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// Tests that destroy column family without dropping won't drop the cache,
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// because compaction and flush might still need to get logical block size
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// when opening new files.
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Options options;
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options.create_if_missing = true;
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options.env = env_.get();
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ColumnFamilyOptions cf_options;
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cf_options.cf_paths = {{cf_path_0_, 1024}};
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DB* db;
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ASSERT_OK(DB::Open(options, dbname_, &db));
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ASSERT_EQ(1, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ColumnFamilyHandle* cf = nullptr;
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ASSERT_OK(db->CreateColumnFamily(cf_options, "cf", &cf));
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
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// Delete handle won't drop cache.
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ASSERT_OK(db->DestroyColumnFamilyHandle(cf));
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
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delete db;
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ASSERT_EQ(0, cache_->Size());
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// Open with column families.
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std::vector<ColumnFamilyHandle*> cfs;
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for (int i = 0; i < 2; i++) {
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if (!i) {
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printf("Open\n");
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ASSERT_OK(DB::Open(
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options, dbname_,
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{{"cf", cf_options}, {"default", ColumnFamilyOptions()}}, &cfs, &db));
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} else {
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printf("OpenForReadOnly\n");
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ASSERT_OK(DB::OpenForReadOnly(
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options, dbname_,
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{{"cf", cf_options}, {"default", ColumnFamilyOptions()}}, &cfs, &db));
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}
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// cf_path_0_ and dbname_ are cached.
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
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// Deleting handle won't drop cache.
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ASSERT_OK(db->DestroyColumnFamilyHandle(cfs[0]));
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ASSERT_OK(db->DestroyColumnFamilyHandle(cfs[1]));
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(dbname_));
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ASSERT_EQ(1, cache_->GetRefCount(dbname_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
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delete db;
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ASSERT_EQ(0, cache_->Size());
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}
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ASSERT_OK(DestroyDB(dbname_, options, {{"cf", cf_options}}));
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}
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TEST_F(DBLogicalBlockSizeCacheTest, MultiDBWithDifferentPaths) {
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// Tests the cache behavior when there are multiple DBs sharing the same env
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// with different db_paths and cf_paths.
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Options options;
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options.create_if_missing = true;
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options.env = env_.get();
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ASSERT_OK(env_->CreateDirIfMissing(dbname_));
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DB* db0;
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ASSERT_OK(DB::Open(options, data_path_0_, &db0));
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ASSERT_EQ(1, cache_->Size());
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ASSERT_TRUE(cache_->Contains(data_path_0_));
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ColumnFamilyOptions cf_options0;
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cf_options0.cf_paths = {{cf_path_0_, 1024}};
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ColumnFamilyHandle* cf0;
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ASSERT_OK(db0->CreateColumnFamily(cf_options0, "cf", &cf0));
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(data_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(data_path_0_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
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DB* db1;
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ASSERT_OK(DB::Open(options, data_path_1_, &db1));
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ASSERT_EQ(3, cache_->Size());
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ASSERT_TRUE(cache_->Contains(data_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(data_path_0_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
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ASSERT_TRUE(cache_->Contains(data_path_1_));
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ASSERT_EQ(1, cache_->GetRefCount(data_path_1_));
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ColumnFamilyOptions cf_options1;
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cf_options1.cf_paths = {{cf_path_1_, 1024}};
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ColumnFamilyHandle* cf1;
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ASSERT_OK(db1->CreateColumnFamily(cf_options1, "cf", &cf1));
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ASSERT_EQ(4, cache_->Size());
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ASSERT_TRUE(cache_->Contains(data_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(data_path_0_));
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ASSERT_TRUE(cache_->Contains(cf_path_0_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
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ASSERT_TRUE(cache_->Contains(data_path_1_));
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ASSERT_EQ(1, cache_->GetRefCount(data_path_1_));
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ASSERT_TRUE(cache_->Contains(cf_path_1_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_1_));
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ASSERT_OK(db0->DestroyColumnFamilyHandle(cf0));
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delete db0;
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ASSERT_EQ(2, cache_->Size());
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ASSERT_TRUE(cache_->Contains(data_path_1_));
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ASSERT_EQ(1, cache_->GetRefCount(data_path_1_));
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ASSERT_TRUE(cache_->Contains(cf_path_1_));
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ASSERT_EQ(1, cache_->GetRefCount(cf_path_1_));
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ASSERT_OK(DestroyDB(data_path_0_, options, {{"cf", cf_options0}}));
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ASSERT_OK(db1->DestroyColumnFamilyHandle(cf1));
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delete db1;
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ASSERT_EQ(0, cache_->Size());
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ASSERT_OK(DestroyDB(data_path_1_, options, {{"cf", cf_options1}}));
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}
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TEST_F(DBLogicalBlockSizeCacheTest, MultiDBWithSamePaths) {
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// Tests the cache behavior when there are multiple DBs sharing the same env
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// with the same db_paths and cf_paths.
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Options options;
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options.create_if_missing = true;
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options.env = env_.get();
|
|
options.db_paths = {{data_path_0_, 1024}};
|
|
ColumnFamilyOptions cf_options;
|
|
cf_options.cf_paths = {{cf_path_0_, 1024}};
|
|
|
|
ASSERT_OK(env_->CreateDirIfMissing(dbname_));
|
|
|
|
DB* db0;
|
|
ASSERT_OK(DB::Open(options, dbname_ + "/db0", &db0));
|
|
ASSERT_EQ(1, cache_->Size());
|
|
ASSERT_TRUE(cache_->Contains(data_path_0_));
|
|
ASSERT_EQ(1, cache_->GetRefCount(data_path_0_));
|
|
|
|
ColumnFamilyHandle* cf0;
|
|
ASSERT_OK(db0->CreateColumnFamily(cf_options, "cf", &cf0));
|
|
ASSERT_EQ(2, cache_->Size());
|
|
ASSERT_TRUE(cache_->Contains(data_path_0_));
|
|
ASSERT_EQ(1, cache_->GetRefCount(data_path_0_));
|
|
ASSERT_TRUE(cache_->Contains(cf_path_0_));
|
|
ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
|
|
|
|
DB* db1;
|
|
ASSERT_OK(DB::Open(options, dbname_ + "/db1", &db1));
|
|
ASSERT_EQ(2, cache_->Size());
|
|
ASSERT_TRUE(cache_->Contains(data_path_0_));
|
|
ASSERT_EQ(2, cache_->GetRefCount(data_path_0_));
|
|
ASSERT_TRUE(cache_->Contains(cf_path_0_));
|
|
ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
|
|
|
|
ColumnFamilyHandle* cf1;
|
|
ASSERT_OK(db1->CreateColumnFamily(cf_options, "cf", &cf1));
|
|
ASSERT_EQ(2, cache_->Size());
|
|
ASSERT_TRUE(cache_->Contains(data_path_0_));
|
|
ASSERT_EQ(2, cache_->GetRefCount(data_path_0_));
|
|
ASSERT_TRUE(cache_->Contains(cf_path_0_));
|
|
ASSERT_EQ(2, cache_->GetRefCount(cf_path_0_));
|
|
|
|
ASSERT_OK(db0->DestroyColumnFamilyHandle(cf0));
|
|
delete db0;
|
|
ASSERT_EQ(2, cache_->Size());
|
|
ASSERT_TRUE(cache_->Contains(data_path_0_));
|
|
ASSERT_EQ(1, cache_->GetRefCount(data_path_0_));
|
|
ASSERT_TRUE(cache_->Contains(cf_path_0_));
|
|
ASSERT_EQ(1, cache_->GetRefCount(cf_path_0_));
|
|
ASSERT_OK(DestroyDB(dbname_ + "/db0", options, {{"cf", cf_options}}));
|
|
|
|
ASSERT_OK(db1->DestroyColumnFamilyHandle(cf1));
|
|
delete db1;
|
|
ASSERT_EQ(0, cache_->Size());
|
|
ASSERT_OK(DestroyDB(dbname_ + "/db1", options, {{"cf", cf_options}}));
|
|
}
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
#endif // OS_LINUX
|
|
|
|
int main(int argc, char** argv) {
|
|
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|