mirror of
https://github.com/facebook/rocksdb.git
synced 2024-12-04 20:02:50 +00:00
bc04ec85db
Summary: after https://github.com/facebook/rocksdb/issues/11321 and https://github.com/facebook/rocksdb/issues/11340 (both included in RocksDB v8.2), migration from `level_compaction_dynamic_level_bytes=false` to `level_compaction_dynamic_level_bytes=true` is automatic by RocksDB and requires no manual compaction from user. Making the option true by default as it has several advantages: 1. better space amplification guarantee (a more stable LSM shape). 2. compaction is more adaptive to write traffic. 3. automatic draining of unneeded levels. Wiki is updated with more detail: https://github.com/facebook/rocksdb/wiki/Leveled-Compaction#option-level_compaction_dynamic_level_bytes-and-levels-target-size. The PR mostly contains fixes for unit tests as they assumed `level_compaction_dynamic_level_bytes=false`. Most notable change is commitf742be330c
andb1928e42b3
which override the default option in DBTestBase to still set `level_compaction_dynamic_level_bytes=false` by default. This helps to reduce the change needed for unit tests. I think this default option override in unit tests is okay since the behavior of `level_compaction_dynamic_level_bytes=true` is tested by explicitly setting this option. Also, `level_compaction_dynamic_level_bytes=false` may be more desired in unit tests as it makes it easier to create a desired LSM shape. Comment for option `level_compaction_dynamic_level_bytes` is updated to reflect this change and change made in https://github.com/facebook/rocksdb/issues/10057. Pull Request resolved: https://github.com/facebook/rocksdb/pull/11525 Test Plan: `make -j32 J=32 check` several times to try to catch flaky tests due to this option change. Reviewed By: ajkr Differential Revision: D46654256 Pulled By: cbi42 fbshipit-source-id: 6b5827dae124f6f1fdc8cca2ac6f6fcd878830e1
625 lines
21 KiB
C++
625 lines
21 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 <memory>
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#include <unordered_set>
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#include <vector>
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#include "db/db_test_util.h"
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#include "port/port.h"
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#include "port/stack_trace.h"
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#include "rocksdb/db.h"
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#include "rocksdb/types.h"
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#include "rocksdb/utilities/table_properties_collectors.h"
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#include "table/format.h"
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#include "table/meta_blocks.h"
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#include "table/table_properties_internal.h"
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#include "test_util/testharness.h"
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#include "test_util/testutil.h"
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#include "util/random.h"
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namespace ROCKSDB_NAMESPACE {
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// A helper function that ensures the table properties returned in
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// `GetPropertiesOfAllTablesTest` is correct.
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// This test assumes entries size is different for each of the tables.
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namespace {
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void VerifyTableProperties(DB* db, uint64_t expected_entries_size) {
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TablePropertiesCollection props;
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ASSERT_OK(db->GetPropertiesOfAllTables(&props));
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ASSERT_EQ(4U, props.size());
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std::unordered_set<uint64_t> unique_entries;
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// Indirect test
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uint64_t sum = 0;
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for (const auto& item : props) {
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unique_entries.insert(item.second->num_entries);
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sum += item.second->num_entries;
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}
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ASSERT_EQ(props.size(), unique_entries.size());
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ASSERT_EQ(expected_entries_size, sum);
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VerifySstUniqueIds(props);
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}
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} // anonymous namespace
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class DBTablePropertiesTest : public DBTestBase,
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public testing::WithParamInterface<std::string> {
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public:
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DBTablePropertiesTest()
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: DBTestBase("db_table_properties_test", /*env_do_fsync=*/false) {}
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TablePropertiesCollection TestGetPropertiesOfTablesInRange(
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std::vector<Range> ranges, std::size_t* num_properties = nullptr,
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std::size_t* num_files = nullptr);
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};
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TEST_F(DBTablePropertiesTest, GetPropertiesOfAllTablesTest) {
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Options options = CurrentOptions();
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options.level0_file_num_compaction_trigger = 8;
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// Part of strategy to prevent pinning table files
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options.max_open_files = 42;
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Reopen(options);
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// Create 4 tables
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for (int table = 0; table < 4; ++table) {
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// Use old meta name for table properties for one file
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if (table == 3) {
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SyncPoint::GetInstance()->SetCallBack(
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"BlockBasedTableBuilder::WritePropertiesBlock:Meta", [&](void* meta) {
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*reinterpret_cast<const std::string**>(meta) =
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&kPropertiesBlockOldName;
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});
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SyncPoint::GetInstance()->EnableProcessing();
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}
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// Build file
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for (int i = 0; i < 10 + table; ++i) {
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ASSERT_OK(
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db_->Put(WriteOptions(), std::to_string(table * 100 + i), "val"));
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}
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ASSERT_OK(db_->Flush(FlushOptions()));
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}
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SyncPoint::GetInstance()->DisableProcessing();
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std::string original_session_id;
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ASSERT_OK(db_->GetDbSessionId(original_session_id));
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// Part of strategy to prevent pinning table files
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SyncPoint::GetInstance()->SetCallBack(
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"VersionEditHandler::LoadTables:skip_load_table_files",
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[&](void* skip_load) { *reinterpret_cast<bool*>(skip_load) = true; });
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SyncPoint::GetInstance()->EnableProcessing();
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// 1. Read table properties directly from file
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Reopen(options);
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// Clear out auto-opened files
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dbfull()->TEST_table_cache()->EraseUnRefEntries();
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ASSERT_EQ(dbfull()->TEST_table_cache()->GetUsage(), 0U);
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VerifyTableProperties(db_, 10 + 11 + 12 + 13);
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// 2. Put two tables to table cache and
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Reopen(options);
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// Clear out auto-opened files
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dbfull()->TEST_table_cache()->EraseUnRefEntries();
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ASSERT_EQ(dbfull()->TEST_table_cache()->GetUsage(), 0U);
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// fetch key from 1st and 2nd table, which will internally place that table to
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// the table cache.
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for (int i = 0; i < 2; ++i) {
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Get(std::to_string(i * 100 + 0));
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}
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VerifyTableProperties(db_, 10 + 11 + 12 + 13);
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// 3. Put all tables to table cache
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Reopen(options);
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// fetch key from all tables, which will place them in table cache.
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for (int i = 0; i < 4; ++i) {
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Get(std::to_string(i * 100 + 0));
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}
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VerifyTableProperties(db_, 10 + 11 + 12 + 13);
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// 4. Try to read CORRUPT properties (a) directly from file, and (b)
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// through reader on Get
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// It's not practical to prevent table file read on Open, so we
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// corrupt after open and after purging table cache.
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for (bool direct : {true, false}) {
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Reopen(options);
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// Clear out auto-opened files
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dbfull()->TEST_table_cache()->EraseUnRefEntries();
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ASSERT_EQ(dbfull()->TEST_table_cache()->GetUsage(), 0U);
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TablePropertiesCollection props;
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ASSERT_OK(db_->GetPropertiesOfAllTables(&props));
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std::string sst_file = props.begin()->first;
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// Corrupt the file's TableProperties using session id
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std::string contents;
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ASSERT_OK(
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ReadFileToString(env_->GetFileSystem().get(), sst_file, &contents));
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size_t pos = contents.find(original_session_id);
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ASSERT_NE(pos, std::string::npos);
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ASSERT_OK(test::CorruptFile(env_, sst_file, static_cast<int>(pos), 1,
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/*verify checksum fails*/ false));
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// Try to read CORRUPT properties
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if (direct) {
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ASSERT_TRUE(db_->GetPropertiesOfAllTables(&props).IsCorruption());
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} else {
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bool found_corruption = false;
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for (int i = 0; i < 4; ++i) {
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std::string result = Get(std::to_string(i * 100 + 0));
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if (result.find_first_of("Corruption: block checksum mismatch") !=
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std::string::npos) {
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found_corruption = true;
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}
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}
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ASSERT_TRUE(found_corruption);
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}
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// UN-corrupt file for next iteration
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ASSERT_OK(test::CorruptFile(env_, sst_file, static_cast<int>(pos), 1,
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/*verify checksum fails*/ false));
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}
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SyncPoint::GetInstance()->DisableProcessing();
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}
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TEST_F(DBTablePropertiesTest, InvalidIgnored) {
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// RocksDB versions 2.5 - 2.7 generate some properties that Block considers
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// invalid in some way. This approximates that.
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// Inject properties block data that Block considers invalid
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SyncPoint::GetInstance()->SetCallBack(
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"BlockBasedTableBuilder::WritePropertiesBlock:BlockData",
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[&](void* block_data) {
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*reinterpret_cast<Slice*>(block_data) = Slice("X");
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});
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SyncPoint::GetInstance()->EnableProcessing();
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// Corrupting the table properties corrupts the unique id.
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// Ignore the unique id recorded in the manifest.
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auto options = CurrentOptions();
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options.verify_sst_unique_id_in_manifest = false;
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Reopen(options);
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// Build file
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for (int i = 0; i < 10; ++i) {
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ASSERT_OK(db_->Put(WriteOptions(), std::to_string(i), "val"));
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}
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ASSERT_OK(db_->Flush(FlushOptions()));
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SyncPoint::GetInstance()->DisableProcessing();
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// Not crashing is good enough
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TablePropertiesCollection props;
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ASSERT_OK(db_->GetPropertiesOfAllTables(&props));
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}
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TEST_F(DBTablePropertiesTest, CreateOnDeletionCollectorFactory) {
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ConfigOptions options;
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options.ignore_unsupported_options = false;
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std::shared_ptr<TablePropertiesCollectorFactory> factory;
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std::string id = CompactOnDeletionCollectorFactory::kClassName();
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ASSERT_OK(
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TablePropertiesCollectorFactory::CreateFromString(options, id, &factory));
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auto del_factory = factory->CheckedCast<CompactOnDeletionCollectorFactory>();
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ASSERT_NE(del_factory, nullptr);
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ASSERT_EQ(0U, del_factory->GetWindowSize());
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ASSERT_EQ(0U, del_factory->GetDeletionTrigger());
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ASSERT_EQ(0.0, del_factory->GetDeletionRatio());
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ASSERT_OK(TablePropertiesCollectorFactory::CreateFromString(
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options, "window_size=100; deletion_trigger=90; id=" + id, &factory));
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del_factory = factory->CheckedCast<CompactOnDeletionCollectorFactory>();
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ASSERT_NE(del_factory, nullptr);
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ASSERT_EQ(100U, del_factory->GetWindowSize());
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ASSERT_EQ(90U, del_factory->GetDeletionTrigger());
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ASSERT_EQ(0.0, del_factory->GetDeletionRatio());
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ASSERT_OK(TablePropertiesCollectorFactory::CreateFromString(
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options,
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"window_size=100; deletion_trigger=90; deletion_ratio=0.5; id=" + id,
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&factory));
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del_factory = factory->CheckedCast<CompactOnDeletionCollectorFactory>();
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ASSERT_NE(del_factory, nullptr);
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ASSERT_EQ(100U, del_factory->GetWindowSize());
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ASSERT_EQ(90U, del_factory->GetDeletionTrigger());
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ASSERT_EQ(0.5, del_factory->GetDeletionRatio());
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}
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TablePropertiesCollection
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DBTablePropertiesTest::TestGetPropertiesOfTablesInRange(
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std::vector<Range> ranges, std::size_t* num_properties,
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std::size_t* num_files) {
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// Since we deref zero element in the vector it can not be empty
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// otherwise we pass an address to some random memory
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EXPECT_GT(ranges.size(), 0U);
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// run the query
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TablePropertiesCollection props;
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EXPECT_OK(db_->GetPropertiesOfTablesInRange(
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db_->DefaultColumnFamily(), &ranges[0], ranges.size(), &props));
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// Make sure that we've received properties for those and for those files
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// only which fall within requested ranges
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std::vector<LiveFileMetaData> vmd;
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db_->GetLiveFilesMetaData(&vmd);
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for (auto& md : vmd) {
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std::string fn = md.db_path + md.name;
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bool in_range = false;
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for (auto& r : ranges) {
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// smallestkey < limit && largestkey >= start
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if (r.limit.compare(md.smallestkey) >= 0 &&
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r.start.compare(md.largestkey) <= 0) {
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in_range = true;
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EXPECT_GT(props.count(fn), 0);
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}
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}
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if (!in_range) {
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EXPECT_EQ(props.count(fn), 0);
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}
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}
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if (num_properties) {
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*num_properties = props.size();
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}
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if (num_files) {
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*num_files = vmd.size();
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}
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return props;
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}
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TEST_F(DBTablePropertiesTest, GetPropertiesOfTablesInRange) {
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// Fixed random sead
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Random rnd(301);
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Options options;
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options.level_compaction_dynamic_level_bytes = false;
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options.create_if_missing = true;
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options.write_buffer_size = 4096;
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options.max_write_buffer_number = 2;
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options.level0_file_num_compaction_trigger = 2;
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options.level0_slowdown_writes_trigger = 2;
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options.level0_stop_writes_trigger = 2;
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options.target_file_size_base = 2048;
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options.max_bytes_for_level_base = 40960;
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options.max_bytes_for_level_multiplier = 4;
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options.hard_pending_compaction_bytes_limit = 16 * 1024;
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options.num_levels = 8;
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options.env = env_;
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DestroyAndReopen(options);
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// build a decent LSM
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for (int i = 0; i < 10000; i++) {
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ASSERT_OK(Put(test::RandomKey(&rnd, 5), rnd.RandomString(102)));
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}
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ASSERT_OK(Flush());
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ASSERT_OK(dbfull()->TEST_WaitForCompact());
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if (NumTableFilesAtLevel(0) == 0) {
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ASSERT_OK(Put(test::RandomKey(&rnd, 5), rnd.RandomString(102)));
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ASSERT_OK(Flush());
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}
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ASSERT_OK(db_->PauseBackgroundWork());
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// Ensure that we have at least L0, L1 and L2
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ASSERT_GT(NumTableFilesAtLevel(0), 0);
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ASSERT_GT(NumTableFilesAtLevel(1), 0);
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ASSERT_GT(NumTableFilesAtLevel(2), 0);
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// Query the largest range
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std::size_t num_properties, num_files;
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TestGetPropertiesOfTablesInRange(
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{Range(test::RandomKey(&rnd, 5, test::RandomKeyType::SMALLEST),
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test::RandomKey(&rnd, 5, test::RandomKeyType::LARGEST))},
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&num_properties, &num_files);
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ASSERT_EQ(num_properties, num_files);
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// Query the empty range
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TestGetPropertiesOfTablesInRange(
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{Range(test::RandomKey(&rnd, 5, test::RandomKeyType::LARGEST),
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test::RandomKey(&rnd, 5, test::RandomKeyType::SMALLEST))},
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&num_properties, &num_files);
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ASSERT_GT(num_files, 0);
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ASSERT_EQ(num_properties, 0);
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// Query the middle rangee
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TestGetPropertiesOfTablesInRange(
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{Range(test::RandomKey(&rnd, 5, test::RandomKeyType::MIDDLE),
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test::RandomKey(&rnd, 5, test::RandomKeyType::LARGEST))},
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&num_properties, &num_files);
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ASSERT_GT(num_files, 0);
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ASSERT_GT(num_files, num_properties);
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ASSERT_GT(num_properties, 0);
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// Query a bunch of random ranges
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for (int j = 0; j < 100; j++) {
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// create a bunch of ranges
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std::vector<std::string> random_keys;
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// Random returns numbers with zero included
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// when we pass empty ranges TestGetPropertiesOfTablesInRange()
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// derefs random memory in the empty ranges[0]
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// so want to be greater than zero and even since
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// the below loop requires that random_keys.size() to be even.
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auto n = 2 * (rnd.Uniform(50) + 1);
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for (uint32_t i = 0; i < n; ++i) {
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random_keys.push_back(test::RandomKey(&rnd, 5));
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}
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ASSERT_GT(random_keys.size(), 0U);
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ASSERT_EQ((random_keys.size() % 2), 0U);
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std::vector<Range> ranges;
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auto it = random_keys.begin();
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while (it != random_keys.end()) {
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ranges.push_back(Range(*it, *(it + 1)));
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it += 2;
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}
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TestGetPropertiesOfTablesInRange(std::move(ranges));
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}
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}
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TEST_F(DBTablePropertiesTest, GetColumnFamilyNameProperty) {
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std::string kExtraCfName = "pikachu";
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CreateAndReopenWithCF({kExtraCfName}, CurrentOptions());
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// Create one table per CF, then verify it was created with the column family
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// name property.
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for (uint32_t cf = 0; cf < 2; ++cf) {
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ASSERT_OK(Put(cf, "key", "val"));
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ASSERT_OK(Flush(cf));
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TablePropertiesCollection fname_to_props;
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ASSERT_OK(db_->GetPropertiesOfAllTables(handles_[cf], &fname_to_props));
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ASSERT_EQ(1U, fname_to_props.size());
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std::string expected_cf_name;
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if (cf > 0) {
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expected_cf_name = kExtraCfName;
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} else {
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expected_cf_name = kDefaultColumnFamilyName;
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}
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ASSERT_EQ(expected_cf_name,
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fname_to_props.begin()->second->column_family_name);
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ASSERT_EQ(cf, static_cast<uint32_t>(
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fname_to_props.begin()->second->column_family_id));
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}
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}
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TEST_F(DBTablePropertiesTest, GetDbIdentifiersProperty) {
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CreateAndReopenWithCF({"goku"}, CurrentOptions());
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for (uint32_t cf = 0; cf < 2; ++cf) {
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ASSERT_OK(Put(cf, "key", "val"));
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ASSERT_OK(Put(cf, "foo", "bar"));
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ASSERT_OK(Flush(cf));
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TablePropertiesCollection fname_to_props;
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ASSERT_OK(db_->GetPropertiesOfAllTables(handles_[cf], &fname_to_props));
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ASSERT_EQ(1U, fname_to_props.size());
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std::string id, sid;
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ASSERT_OK(db_->GetDbIdentity(id));
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ASSERT_OK(db_->GetDbSessionId(sid));
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ASSERT_EQ(id, fname_to_props.begin()->second->db_id);
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ASSERT_EQ(sid, fname_to_props.begin()->second->db_session_id);
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}
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}
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class DBTableHostnamePropertyTest
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: public DBTestBase,
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public ::testing::WithParamInterface<std::tuple<int, std::string>> {
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public:
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DBTableHostnamePropertyTest()
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: DBTestBase("db_table_hostname_property_test",
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/*env_do_fsync=*/false) {}
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};
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TEST_P(DBTableHostnamePropertyTest, DbHostLocationProperty) {
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option_config_ = std::get<0>(GetParam());
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Options opts = CurrentOptions();
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std::string expected_host_id = std::get<1>(GetParam());
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;
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if (expected_host_id == kHostnameForDbHostId) {
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ASSERT_OK(env_->GetHostNameString(&expected_host_id));
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} else {
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opts.db_host_id = expected_host_id;
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}
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CreateAndReopenWithCF({"goku"}, opts);
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for (uint32_t cf = 0; cf < 2; ++cf) {
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ASSERT_OK(Put(cf, "key", "val"));
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ASSERT_OK(Put(cf, "foo", "bar"));
|
|
ASSERT_OK(Flush(cf));
|
|
|
|
TablePropertiesCollection fname_to_props;
|
|
ASSERT_OK(db_->GetPropertiesOfAllTables(handles_[cf], &fname_to_props));
|
|
ASSERT_EQ(1U, fname_to_props.size());
|
|
|
|
ASSERT_EQ(fname_to_props.begin()->second->db_host_id, expected_host_id);
|
|
}
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
DBTableHostnamePropertyTest, DBTableHostnamePropertyTest,
|
|
::testing::Values(
|
|
// OptionConfig, override db_host_location
|
|
std::make_tuple(DBTestBase::OptionConfig::kDefault,
|
|
kHostnameForDbHostId),
|
|
std::make_tuple(DBTestBase::OptionConfig::kDefault, "foobar"),
|
|
std::make_tuple(DBTestBase::OptionConfig::kDefault, ""),
|
|
std::make_tuple(DBTestBase::OptionConfig::kPlainTableFirstBytePrefix,
|
|
kHostnameForDbHostId),
|
|
std::make_tuple(DBTestBase::OptionConfig::kPlainTableFirstBytePrefix,
|
|
"foobar"),
|
|
std::make_tuple(DBTestBase::OptionConfig::kPlainTableFirstBytePrefix,
|
|
"")));
|
|
|
|
class DeletionTriggeredCompactionTestListener : public EventListener {
|
|
public:
|
|
void OnCompactionBegin(DB*, const CompactionJobInfo& ci) override {
|
|
ASSERT_EQ(ci.compaction_reason,
|
|
CompactionReason::kFilesMarkedForCompaction);
|
|
}
|
|
|
|
void OnCompactionCompleted(DB*, const CompactionJobInfo& ci) override {
|
|
ASSERT_EQ(ci.compaction_reason,
|
|
CompactionReason::kFilesMarkedForCompaction);
|
|
}
|
|
};
|
|
|
|
TEST_P(DBTablePropertiesTest, DeletionTriggeredCompactionMarking) {
|
|
int kNumKeys = 1000;
|
|
int kWindowSize = 100;
|
|
int kNumDelsTrigger = 90;
|
|
std::shared_ptr<TablePropertiesCollectorFactory> compact_on_del =
|
|
NewCompactOnDeletionCollectorFactory(kWindowSize, kNumDelsTrigger);
|
|
|
|
Options opts = CurrentOptions();
|
|
opts.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
|
|
opts.table_properties_collector_factories.emplace_back(compact_on_del);
|
|
|
|
if (GetParam() == "kCompactionStyleUniversal") {
|
|
opts.compaction_style = kCompactionStyleUniversal;
|
|
}
|
|
Reopen(opts);
|
|
|
|
// add an L1 file to prevent tombstones from dropping due to obsolescence
|
|
// during flush
|
|
ASSERT_OK(Put(Key(0), "val"));
|
|
ASSERT_OK(Flush());
|
|
MoveFilesToLevel(1);
|
|
|
|
DeletionTriggeredCompactionTestListener* listener =
|
|
new DeletionTriggeredCompactionTestListener();
|
|
opts.listeners.emplace_back(listener);
|
|
Reopen(opts);
|
|
|
|
for (int i = 0; i < kNumKeys; ++i) {
|
|
if (i >= kNumKeys - kWindowSize &&
|
|
i < kNumKeys - kWindowSize + kNumDelsTrigger) {
|
|
ASSERT_OK(Delete(Key(i)));
|
|
} else {
|
|
ASSERT_OK(Put(Key(i), "val"));
|
|
}
|
|
}
|
|
ASSERT_OK(Flush());
|
|
|
|
ASSERT_OK(dbfull()->TEST_WaitForCompact());
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(0));
|
|
|
|
// Change the window size and deletion trigger and ensure new values take
|
|
// effect
|
|
kWindowSize = 50;
|
|
kNumDelsTrigger = 40;
|
|
static_cast<CompactOnDeletionCollectorFactory*>(compact_on_del.get())
|
|
->SetWindowSize(kWindowSize);
|
|
static_cast<CompactOnDeletionCollectorFactory*>(compact_on_del.get())
|
|
->SetDeletionTrigger(kNumDelsTrigger);
|
|
for (int i = 0; i < kNumKeys; ++i) {
|
|
if (i >= kNumKeys - kWindowSize &&
|
|
i < kNumKeys - kWindowSize + kNumDelsTrigger) {
|
|
ASSERT_OK(Delete(Key(i)));
|
|
} else {
|
|
ASSERT_OK(Put(Key(i), "val"));
|
|
}
|
|
}
|
|
ASSERT_OK(Flush());
|
|
|
|
ASSERT_OK(dbfull()->TEST_WaitForCompact());
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(0));
|
|
|
|
// Change the window size to disable delete triggered compaction
|
|
kWindowSize = 0;
|
|
static_cast<CompactOnDeletionCollectorFactory*>(compact_on_del.get())
|
|
->SetWindowSize(kWindowSize);
|
|
static_cast<CompactOnDeletionCollectorFactory*>(compact_on_del.get())
|
|
->SetDeletionTrigger(kNumDelsTrigger);
|
|
for (int i = 0; i < kNumKeys; ++i) {
|
|
if (i >= kNumKeys - kWindowSize &&
|
|
i < kNumKeys - kWindowSize + kNumDelsTrigger) {
|
|
ASSERT_OK(Delete(Key(i)));
|
|
} else {
|
|
ASSERT_OK(Put(Key(i), "val"));
|
|
}
|
|
}
|
|
ASSERT_OK(Flush());
|
|
|
|
ASSERT_OK(dbfull()->TEST_WaitForCompact());
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(0));
|
|
ASSERT_LT(0, opts.statistics->getTickerCount(COMPACT_WRITE_BYTES_MARKED));
|
|
ASSERT_LT(0, opts.statistics->getTickerCount(COMPACT_READ_BYTES_MARKED));
|
|
}
|
|
|
|
TEST_P(DBTablePropertiesTest, RatioBasedDeletionTriggeredCompactionMarking) {
|
|
constexpr int kNumKeys = 1000;
|
|
constexpr int kWindowSize = 0;
|
|
constexpr int kNumDelsTrigger = 0;
|
|
constexpr double kDeletionRatio = 0.1;
|
|
std::shared_ptr<TablePropertiesCollectorFactory> compact_on_del =
|
|
NewCompactOnDeletionCollectorFactory(kWindowSize, kNumDelsTrigger,
|
|
kDeletionRatio);
|
|
|
|
Options opts = CurrentOptions();
|
|
opts.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
|
|
opts.table_properties_collector_factories.emplace_back(compact_on_del);
|
|
|
|
Reopen(opts);
|
|
|
|
// Add an L2 file to prevent tombstones from dropping due to obsolescence
|
|
// during flush
|
|
ASSERT_OK(Put(Key(0), "val"));
|
|
ASSERT_OK(Flush());
|
|
MoveFilesToLevel(2);
|
|
|
|
auto* listener = new DeletionTriggeredCompactionTestListener();
|
|
opts.listeners.emplace_back(listener);
|
|
Reopen(opts);
|
|
|
|
// Generate one L0 with kNumKeys Put.
|
|
for (int i = 0; i < kNumKeys; ++i) {
|
|
ASSERT_OK(Put(Key(i), "not important"));
|
|
}
|
|
ASSERT_OK(Flush());
|
|
|
|
// Generate another L0 with kNumKeys Delete.
|
|
// This file, due to deletion ratio, will trigger compaction: 2@0 files to L1.
|
|
// The resulting L1 file has only one tombstone for user key 'Key(0)'.
|
|
// Again, due to deletion ratio, a compaction will be triggered: 1@1 + 1@2
|
|
// files to L2. However, the resulting file is empty because the tombstone
|
|
// and value are both dropped.
|
|
for (int i = 0; i < kNumKeys; ++i) {
|
|
ASSERT_OK(Delete(Key(i)));
|
|
}
|
|
ASSERT_OK(Flush());
|
|
|
|
ASSERT_OK(dbfull()->TEST_WaitForCompact());
|
|
for (int i = 0; i < 3; ++i) {
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(i));
|
|
}
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(DBTablePropertiesTest, DBTablePropertiesTest,
|
|
::testing::Values("kCompactionStyleLevel",
|
|
"kCompactionStyleUniversal"));
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
|
|
int main(int argc, char** argv) {
|
|
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|