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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /src/rocksdb/db/wal_manager_test.cc | |
parent | Initial commit. (diff) | |
download | ceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/rocksdb/db/wal_manager_test.cc | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/src/rocksdb/db/wal_manager_test.cc b/src/rocksdb/db/wal_manager_test.cc new file mode 100644 index 000000000..4ad4e9749 --- /dev/null +++ b/src/rocksdb/db/wal_manager_test.cc @@ -0,0 +1,346 @@ +// Copyright (c) 2011-present, Facebook, Inc. All rights reserved. +// This source code is licensed under both the GPLv2 (found in the +// COPYING file in the root directory) and Apache 2.0 License +// (found in the LICENSE.Apache file in the root directory). + +#ifndef ROCKSDB_LITE + +#include "db/wal_manager.h" + +#include <map> +#include <string> + +#include "db/column_family.h" +#include "db/db_impl/db_impl.h" +#include "db/log_writer.h" +#include "db/version_set.h" +#include "env/mock_env.h" +#include "file/writable_file_writer.h" +#include "rocksdb/cache.h" +#include "rocksdb/file_system.h" +#include "rocksdb/write_batch.h" +#include "rocksdb/write_buffer_manager.h" +#include "table/mock_table.h" +#include "test_util/testharness.h" +#include "test_util/testutil.h" +#include "util/string_util.h" + +namespace ROCKSDB_NAMESPACE { + +// TODO(icanadi) mock out VersionSet +// TODO(icanadi) move other WalManager-specific tests from db_test here +class WalManagerTest : public testing::Test { + public: + WalManagerTest() + : dbname_(test::PerThreadDBPath("wal_manager_test")), + db_options_(), + table_cache_(NewLRUCache(50000, 16)), + write_buffer_manager_(db_options_.db_write_buffer_size), + current_log_number_(0) { + env_.reset(MockEnv::Create(Env::Default())); + EXPECT_OK(DestroyDB(dbname_, Options())); + } + + void Init() { + ASSERT_OK(env_->CreateDirIfMissing(dbname_)); + ASSERT_OK(env_->CreateDirIfMissing(ArchivalDirectory(dbname_))); + db_options_.db_paths.emplace_back(dbname_, + std::numeric_limits<uint64_t>::max()); + db_options_.wal_dir = dbname_; + db_options_.env = env_.get(); + db_options_.fs = env_->GetFileSystem(); + db_options_.clock = env_->GetSystemClock().get(); + + versions_.reset( + new VersionSet(dbname_, &db_options_, env_options_, table_cache_.get(), + &write_buffer_manager_, &write_controller_, + /*block_cache_tracer=*/nullptr, /*io_tracer=*/nullptr, + /*db_id*/ "", /*db_session_id*/ "")); + + wal_manager_.reset( + new WalManager(db_options_, env_options_, nullptr /*IOTracer*/)); + } + + void Reopen() { + wal_manager_.reset( + new WalManager(db_options_, env_options_, nullptr /*IOTracer*/)); + } + + // NOT thread safe + void Put(const std::string& key, const std::string& value) { + assert(current_log_writer_.get() != nullptr); + uint64_t seq = versions_->LastSequence() + 1; + WriteBatch batch; + ASSERT_OK(batch.Put(key, value)); + WriteBatchInternal::SetSequence(&batch, seq); + ASSERT_OK( + current_log_writer_->AddRecord(WriteBatchInternal::Contents(&batch))); + versions_->SetLastAllocatedSequence(seq); + versions_->SetLastPublishedSequence(seq); + versions_->SetLastSequence(seq); + } + + // NOT thread safe + void RollTheLog(bool /*archived*/) { + current_log_number_++; + std::string fname = ArchivedLogFileName(dbname_, current_log_number_); + const auto& fs = env_->GetFileSystem(); + std::unique_ptr<WritableFileWriter> file_writer; + ASSERT_OK(WritableFileWriter::Create(fs, fname, env_options_, &file_writer, + nullptr)); + current_log_writer_.reset( + new log::Writer(std::move(file_writer), 0, false)); + } + + void CreateArchiveLogs(int num_logs, int entries_per_log) { + for (int i = 1; i <= num_logs; ++i) { + RollTheLog(true); + for (int k = 0; k < entries_per_log; ++k) { + Put(std::to_string(k), std::string(1024, 'a')); + } + } + } + + std::unique_ptr<TransactionLogIterator> OpenTransactionLogIter( + const SequenceNumber seq) { + std::unique_ptr<TransactionLogIterator> iter; + Status status = wal_manager_->GetUpdatesSince( + seq, &iter, TransactionLogIterator::ReadOptions(), versions_.get()); + EXPECT_OK(status); + return iter; + } + + std::unique_ptr<MockEnv> env_; + std::string dbname_; + ImmutableDBOptions db_options_; + WriteController write_controller_; + EnvOptions env_options_; + std::shared_ptr<Cache> table_cache_; + WriteBufferManager write_buffer_manager_; + std::unique_ptr<VersionSet> versions_; + std::unique_ptr<WalManager> wal_manager_; + + std::unique_ptr<log::Writer> current_log_writer_; + uint64_t current_log_number_; +}; + +TEST_F(WalManagerTest, ReadFirstRecordCache) { + Init(); + std::string path = dbname_ + "/000001.log"; + std::unique_ptr<FSWritableFile> file; + ASSERT_OK(env_->GetFileSystem()->NewWritableFile(path, FileOptions(), &file, + nullptr)); + + SequenceNumber s; + ASSERT_OK(wal_manager_->TEST_ReadFirstLine(path, 1 /* number */, &s)); + ASSERT_EQ(s, 0U); + + ASSERT_OK( + wal_manager_->TEST_ReadFirstRecord(kAliveLogFile, 1 /* number */, &s)); + ASSERT_EQ(s, 0U); + + std::unique_ptr<WritableFileWriter> file_writer( + new WritableFileWriter(std::move(file), path, FileOptions())); + log::Writer writer(std::move(file_writer), 1, + db_options_.recycle_log_file_num > 0); + WriteBatch batch; + ASSERT_OK(batch.Put("foo", "bar")); + WriteBatchInternal::SetSequence(&batch, 10); + ASSERT_OK(writer.AddRecord(WriteBatchInternal::Contents(&batch))); + + // TODO(icanadi) move SpecialEnv outside of db_test, so we can reuse it here. + // Waiting for lei to finish with db_test + // env_->count_sequential_reads_ = true; + // sequential_read_counter_ sanity test + // ASSERT_EQ(env_->sequential_read_counter_.Read(), 0); + + ASSERT_OK(wal_manager_->TEST_ReadFirstRecord(kAliveLogFile, 1, &s)); + ASSERT_EQ(s, 10U); + // did a read + // TODO(icanadi) move SpecialEnv outside of db_test, so we can reuse it here + // ASSERT_EQ(env_->sequential_read_counter_.Read(), 1); + + ASSERT_OK(wal_manager_->TEST_ReadFirstRecord(kAliveLogFile, 1, &s)); + ASSERT_EQ(s, 10U); + // no new reads since the value is cached + // TODO(icanadi) move SpecialEnv outside of db_test, so we can reuse it here + // ASSERT_EQ(env_->sequential_read_counter_.Read(), 1); +} + +namespace { +uint64_t GetLogDirSize(std::string dir_path, Env* env) { + uint64_t dir_size = 0; + std::vector<std::string> files; + EXPECT_OK(env->GetChildren(dir_path, &files)); + for (auto& f : files) { + uint64_t number; + FileType type; + if (ParseFileName(f, &number, &type) && type == kWalFile) { + std::string const file_path = dir_path + "/" + f; + uint64_t file_size; + EXPECT_OK(env->GetFileSize(file_path, &file_size)); + dir_size += file_size; + } + } + return dir_size; +} +std::vector<std::uint64_t> ListSpecificFiles( + Env* env, const std::string& path, const FileType expected_file_type) { + std::vector<std::string> files; + std::vector<uint64_t> file_numbers; + uint64_t number; + FileType type; + EXPECT_OK(env->GetChildren(path, &files)); + for (size_t i = 0; i < files.size(); ++i) { + if (ParseFileName(files[i], &number, &type)) { + if (type == expected_file_type) { + file_numbers.push_back(number); + } + } + } + return file_numbers; +} + +int CountRecords(TransactionLogIterator* iter) { + int count = 0; + SequenceNumber lastSequence = 0; + BatchResult res; + while (iter->Valid()) { + res = iter->GetBatch(); + EXPECT_TRUE(res.sequence > lastSequence); + ++count; + lastSequence = res.sequence; + EXPECT_OK(iter->status()); + iter->Next(); + } + EXPECT_OK(iter->status()); + return count; +} +} // anonymous namespace + +TEST_F(WalManagerTest, WALArchivalSizeLimit) { + db_options_.WAL_ttl_seconds = 0; + db_options_.WAL_size_limit_MB = 1000; + Init(); + + // TEST : Create WalManager with huge size limit and no ttl. + // Create some archived files and call PurgeObsoleteWALFiles(). + // Count the archived log files that survived. + // Assert that all of them did. + // Change size limit. Re-open WalManager. + // Assert that archive is not greater than WAL_size_limit_MB after + // PurgeObsoleteWALFiles() + // Set ttl and time_to_check_ to small values. Re-open db. + // Assert that there are no archived logs left. + + std::string archive_dir = ArchivalDirectory(dbname_); + CreateArchiveLogs(20, 5000); + + std::vector<std::uint64_t> log_files = + ListSpecificFiles(env_.get(), archive_dir, kWalFile); + ASSERT_EQ(log_files.size(), 20U); + + db_options_.WAL_size_limit_MB = 8; + Reopen(); + wal_manager_->PurgeObsoleteWALFiles(); + + uint64_t archive_size = GetLogDirSize(archive_dir, env_.get()); + ASSERT_TRUE(archive_size <= db_options_.WAL_size_limit_MB * 1024 * 1024); + + db_options_.WAL_ttl_seconds = 1; + env_->SleepForMicroseconds(2 * 1000 * 1000); + Reopen(); + wal_manager_->PurgeObsoleteWALFiles(); + + log_files = ListSpecificFiles(env_.get(), archive_dir, kWalFile); + ASSERT_TRUE(log_files.empty()); +} + +TEST_F(WalManagerTest, WALArchivalTtl) { + db_options_.WAL_ttl_seconds = 1000; + Init(); + + // TEST : Create WalManager with a ttl and no size limit. + // Create some archived log files and call PurgeObsoleteWALFiles(). + // Assert that files are not deleted + // Reopen db with small ttl. + // Assert that all archived logs was removed. + + std::string archive_dir = ArchivalDirectory(dbname_); + CreateArchiveLogs(20, 5000); + + std::vector<uint64_t> log_files = + ListSpecificFiles(env_.get(), archive_dir, kWalFile); + ASSERT_GT(log_files.size(), 0U); + + db_options_.WAL_ttl_seconds = 1; + env_->SleepForMicroseconds(3 * 1000 * 1000); + Reopen(); + wal_manager_->PurgeObsoleteWALFiles(); + + log_files = ListSpecificFiles(env_.get(), archive_dir, kWalFile); + ASSERT_TRUE(log_files.empty()); +} + +TEST_F(WalManagerTest, TransactionLogIteratorMoveOverZeroFiles) { + Init(); + RollTheLog(false); + Put("key1", std::string(1024, 'a')); + // Create a zero record WAL file. + RollTheLog(false); + RollTheLog(false); + + Put("key2", std::string(1024, 'a')); + + auto iter = OpenTransactionLogIter(0); + ASSERT_EQ(2, CountRecords(iter.get())); +} + +TEST_F(WalManagerTest, TransactionLogIteratorJustEmptyFile) { + Init(); + RollTheLog(false); + auto iter = OpenTransactionLogIter(0); + // Check that an empty iterator is returned + ASSERT_TRUE(!iter->Valid()); +} + +TEST_F(WalManagerTest, TransactionLogIteratorNewFileWhileScanning) { + Init(); + CreateArchiveLogs(2, 100); + auto iter = OpenTransactionLogIter(0); + CreateArchiveLogs(1, 100); + int i = 0; + for (; iter->Valid(); iter->Next()) { + i++; + } + ASSERT_EQ(i, 200); + // A new log file was added after the iterator was created. + // TryAgain indicates a new iterator is needed to fetch the new data + ASSERT_TRUE(iter->status().IsTryAgain()); + + iter = OpenTransactionLogIter(0); + i = 0; + for (; iter->Valid(); iter->Next()) { + i++; + } + ASSERT_EQ(i, 300); + ASSERT_TRUE(iter->status().ok()); +} + +} // namespace ROCKSDB_NAMESPACE + +int main(int argc, char** argv) { + ROCKSDB_NAMESPACE::port::InstallStackTraceHandler(); + ::testing::InitGoogleTest(&argc, argv); + return RUN_ALL_TESTS(); +} + +#else +#include <stdio.h> + +int main(int /*argc*/, char** /*argv*/) { + fprintf(stderr, "SKIPPED as WalManager is not supported in ROCKSDB_LITE\n"); + return 0; +} + +#endif // !ROCKSDB_LITE |