fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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336 lines
10 KiB
336 lines
10 KiB
// 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 <unordered_set>
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#include <vector>
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#include "db/db_test_util.h"
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#include "port/stack_trace.h"
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#include "rocksdb/db.h"
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#include "rocksdb/utilities/table_properties_collectors.h"
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#include "test_util/testharness.h"
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#include "test_util/testutil.h"
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#ifndef ROCKSDB_LITE
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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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}
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} // namespace
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class DBTablePropertiesTest : public DBTestBase {
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public:
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DBTablePropertiesTest() : DBTestBase("/db_table_properties_test") {}
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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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Reopen(options);
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// Create 4 tables
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for (int table = 0; table < 4; ++table) {
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for (int i = 0; i < 10 + table; ++i) {
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db_->Put(WriteOptions(), ToString(table * 100 + i), "val");
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}
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db_->Flush(FlushOptions());
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}
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// 1. Read table properties directly from file
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Reopen(options);
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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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// 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(ToString(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 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 < 4; ++i) {
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Get(ToString(i * 100 + 0));
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}
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VerifyTableProperties(db_, 10 + 11 + 12 + 13);
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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.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), RandomString(&rnd, 102)));
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}
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Flush();
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dbfull()->TEST_WaitForCompact();
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if (NumTableFilesAtLevel(0) == 0) {
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ASSERT_OK(Put(test::RandomKey(&rnd, 5), RandomString(&rnd, 102)));
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Flush();
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}
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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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Put(cf, "key", "val");
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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, DeletionTriggeredCompactionMarking) {
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int kNumKeys = 1000;
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int kWindowSize = 100;
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int kNumDelsTrigger = 90;
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std::shared_ptr<TablePropertiesCollectorFactory> compact_on_del =
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NewCompactOnDeletionCollectorFactory(kWindowSize, kNumDelsTrigger);
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Options opts = CurrentOptions();
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opts.table_properties_collector_factories.emplace_back(compact_on_del);
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Reopen(opts);
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// add an L1 file to prevent tombstones from dropping due to obsolescence
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// during flush
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Put(Key(0), "val");
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Flush();
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MoveFilesToLevel(1);
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for (int i = 0; i < kNumKeys; ++i) {
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if (i >= kNumKeys - kWindowSize &&
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i < kNumKeys - kWindowSize + kNumDelsTrigger) {
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Delete(Key(i));
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} else {
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Put(Key(i), "val");
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}
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}
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Flush();
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dbfull()->TEST_WaitForCompact();
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ASSERT_EQ(0, NumTableFilesAtLevel(0));
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ASSERT_GT(NumTableFilesAtLevel(1), 0);
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// Change the window size and deletion trigger and ensure new values take
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// effect
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kWindowSize = 50;
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kNumDelsTrigger = 40;
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static_cast<CompactOnDeletionCollectorFactory*>
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(compact_on_del.get())->SetWindowSize(kWindowSize);
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static_cast<CompactOnDeletionCollectorFactory*>
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(compact_on_del.get())->SetDeletionTrigger(kNumDelsTrigger);
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for (int i = 0; i < kNumKeys; ++i) {
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if (i >= kNumKeys - kWindowSize &&
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i < kNumKeys - kWindowSize + kNumDelsTrigger) {
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Delete(Key(i));
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} else {
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Put(Key(i), "val");
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}
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}
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Flush();
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dbfull()->TEST_WaitForCompact();
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ASSERT_EQ(0, NumTableFilesAtLevel(0));
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ASSERT_GT(NumTableFilesAtLevel(1), 0);
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// Change the window size to disable delete triggered compaction
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kWindowSize = 0;
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static_cast<CompactOnDeletionCollectorFactory*>
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(compact_on_del.get())->SetWindowSize(kWindowSize);
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static_cast<CompactOnDeletionCollectorFactory*>
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(compact_on_del.get())->SetDeletionTrigger(kNumDelsTrigger);
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for (int i = 0; i < kNumKeys; ++i) {
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if (i >= kNumKeys - kWindowSize &&
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i < kNumKeys - kWindowSize + kNumDelsTrigger) {
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Delete(Key(i));
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} else {
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Put(Key(i), "val");
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}
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}
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Flush();
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dbfull()->TEST_WaitForCompact();
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ASSERT_EQ(1, NumTableFilesAtLevel(0));
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}
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} // namespace ROCKSDB_NAMESPACE
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#endif // ROCKSDB_LITE
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int main(int argc, char** argv) {
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ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
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::testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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