fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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268 lines
8.3 KiB
268 lines
8.3 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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#ifndef ROCKSDB_LITE
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#include <stdlib.h>
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#include <map>
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#include <string>
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#include <vector>
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#include "db/db_impl/db_impl.h"
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#include "db/version_set.h"
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#include "db/write_batch_internal.h"
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#include "file/filename.h"
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#include "rocksdb/db.h"
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#include "rocksdb/env.h"
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#include "rocksdb/transaction_log.h"
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#include "test_util/sync_point.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/string_util.h"
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using std::cerr;
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using std::cout;
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using std::endl;
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using std::flush;
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namespace rocksdb {
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class ObsoleteFilesTest : public testing::Test {
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public:
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std::string dbname_;
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Options options_;
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DB* db_;
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Env* env_;
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int numlevels_;
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ObsoleteFilesTest() {
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db_ = nullptr;
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env_ = Env::Default();
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// Trigger compaction when the number of level 0 files reaches 2.
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options_.level0_file_num_compaction_trigger = 2;
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options_.disable_auto_compactions = false;
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options_.delete_obsolete_files_period_micros = 0; // always do full purge
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options_.enable_thread_tracking = true;
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options_.write_buffer_size = 1024*1024*1000;
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options_.target_file_size_base = 1024*1024*1000;
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options_.max_bytes_for_level_base = 1024*1024*1000;
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options_.WAL_ttl_seconds = 300; // Used to test log files
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options_.WAL_size_limit_MB = 1024; // Used to test log files
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dbname_ = test::PerThreadDBPath("obsolete_files_test");
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options_.wal_dir = dbname_ + "/wal_files";
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// clean up all the files that might have been there before
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std::vector<std::string> old_files;
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env_->GetChildren(dbname_, &old_files);
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for (auto file : old_files) {
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env_->DeleteFile(dbname_ + "/" + file);
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}
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env_->GetChildren(options_.wal_dir, &old_files);
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for (auto file : old_files) {
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env_->DeleteFile(options_.wal_dir + "/" + file);
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}
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DestroyDB(dbname_, options_);
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numlevels_ = 7;
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EXPECT_OK(ReopenDB(true));
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}
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Status ReopenDB(bool create) {
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delete db_;
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if (create) {
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DestroyDB(dbname_, options_);
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}
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db_ = nullptr;
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options_.create_if_missing = create;
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return DB::Open(options_, dbname_, &db_);
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}
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void CloseDB() {
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delete db_;
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db_ = nullptr;
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}
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void AddKeys(int numkeys, int startkey) {
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WriteOptions options;
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options.sync = false;
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for (int i = startkey; i < (numkeys + startkey) ; i++) {
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std::string temp = ToString(i);
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Slice key(temp);
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Slice value(temp);
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ASSERT_OK(db_->Put(options, key, value));
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}
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}
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int numKeysInLevels(
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std::vector<LiveFileMetaData> &metadata,
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std::vector<int> *keysperlevel = nullptr) {
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if (keysperlevel != nullptr) {
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keysperlevel->resize(numlevels_);
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}
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int numKeys = 0;
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for (size_t i = 0; i < metadata.size(); i++) {
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int startkey = atoi(metadata[i].smallestkey.c_str());
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int endkey = atoi(metadata[i].largestkey.c_str());
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int numkeysinfile = (endkey - startkey + 1);
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numKeys += numkeysinfile;
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if (keysperlevel != nullptr) {
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(*keysperlevel)[(int)metadata[i].level] += numkeysinfile;
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}
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fprintf(stderr, "level %d name %s smallest %s largest %s\n",
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metadata[i].level, metadata[i].name.c_str(),
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metadata[i].smallestkey.c_str(),
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metadata[i].largestkey.c_str());
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}
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return numKeys;
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}
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void createLevel0Files(int numFiles, int numKeysPerFile) {
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int startKey = 0;
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DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
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for (int i = 0; i < numFiles; i++) {
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AddKeys(numKeysPerFile, startKey);
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startKey += numKeysPerFile;
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ASSERT_OK(dbi->TEST_FlushMemTable());
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ASSERT_OK(dbi->TEST_WaitForFlushMemTable());
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}
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}
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void CheckFileTypeCounts(std::string& dir,
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int required_log,
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int required_sst,
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int required_manifest) {
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std::vector<std::string> filenames;
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env_->GetChildren(dir, &filenames);
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int log_cnt = 0, sst_cnt = 0, manifest_cnt = 0;
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for (auto file : filenames) {
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uint64_t number;
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FileType type;
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if (ParseFileName(file, &number, &type)) {
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log_cnt += (type == kLogFile);
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sst_cnt += (type == kTableFile);
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manifest_cnt += (type == kDescriptorFile);
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}
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}
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ASSERT_EQ(required_log, log_cnt);
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ASSERT_EQ(required_sst, sst_cnt);
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ASSERT_EQ(required_manifest, manifest_cnt);
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}
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};
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TEST_F(ObsoleteFilesTest, RaceForObsoleteFileDeletion) {
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SyncPoint::GetInstance()->LoadDependency({
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{"DBImpl::BackgroundCallCompaction:FoundObsoleteFiles",
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"ObsoleteFilesTest::RaceForObsoleteFileDeletion:1"},
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{"DBImpl::BackgroundCallCompaction:PurgedObsoleteFiles",
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"ObsoleteFilesTest::RaceForObsoleteFileDeletion:2"},
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});
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SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::DeleteObsoleteFileImpl:AfterDeletion", [&](void* arg) {
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Status* p_status = reinterpret_cast<Status*>(arg);
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ASSERT_OK(*p_status);
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});
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SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::CloseHelper:PendingPurgeFinished", [&](void* arg) {
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std::unordered_set<uint64_t>* files_grabbed_for_purge_ptr =
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reinterpret_cast<std::unordered_set<uint64_t>*>(arg);
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ASSERT_TRUE(files_grabbed_for_purge_ptr->empty());
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});
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SyncPoint::GetInstance()->EnableProcessing();
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createLevel0Files(2, 50000);
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CheckFileTypeCounts(options_.wal_dir, 1, 0, 0);
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DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
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port::Thread user_thread([&]() {
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JobContext jobCxt(0);
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TEST_SYNC_POINT("ObsoleteFilesTest::RaceForObsoleteFileDeletion:1");
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dbi->TEST_LockMutex();
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dbi->FindObsoleteFiles(&jobCxt,
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true /* force=true */, false /* no_full_scan=false */);
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dbi->TEST_UnlockMutex();
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TEST_SYNC_POINT("ObsoleteFilesTest::RaceForObsoleteFileDeletion:2");
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dbi->PurgeObsoleteFiles(jobCxt);
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jobCxt.Clean();
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});
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user_thread.join();
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CloseDB();
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SyncPoint::GetInstance()->DisableProcessing();
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}
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TEST_F(ObsoleteFilesTest, DeleteObsoleteOptionsFile) {
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std::vector<uint64_t> optsfiles_nums;
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std::vector<bool> optsfiles_keep;
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SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::PurgeObsoleteFiles:CheckOptionsFiles:1", [&](void* arg) {
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optsfiles_nums.push_back(*reinterpret_cast<uint64_t*>(arg));
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});
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SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::PurgeObsoleteFiles:CheckOptionsFiles:2", [&](void* arg) {
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optsfiles_keep.push_back(*reinterpret_cast<bool*>(arg));
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});
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SyncPoint::GetInstance()->EnableProcessing();
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createLevel0Files(2, 50000);
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CheckFileTypeCounts(options_.wal_dir, 1, 0, 0);
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DBImpl* dbi = static_cast<DBImpl*>(db_);
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ASSERT_OK(dbi->DisableFileDeletions());
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for (int i = 0; i != 4; ++i) {
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if (i % 2) {
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ASSERT_OK(dbi->SetOptions(dbi->DefaultColumnFamily(),
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{{"paranoid_file_checks", "false"}}));
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} else {
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ASSERT_OK(dbi->SetOptions(dbi->DefaultColumnFamily(),
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{{"paranoid_file_checks", "true"}}));
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}
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}
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ASSERT_OK(dbi->EnableFileDeletions(true /* force */));
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ASSERT_EQ(optsfiles_nums.size(), optsfiles_keep.size());
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CloseDB();
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std::vector<std::string> files;
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int opts_file_count = 0;
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ASSERT_OK(env_->GetChildren(dbname_, &files));
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for (const auto& file : files) {
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uint64_t file_num;
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Slice dummy_info_log_name_prefix;
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FileType type;
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WalFileType log_type;
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if (ParseFileName(file, &file_num, dummy_info_log_name_prefix, &type,
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&log_type) &&
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type == kOptionsFile) {
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opts_file_count++;
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}
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}
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ASSERT_EQ(2, opts_file_count);
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SyncPoint::GetInstance()->DisableProcessing();
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}
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} //namespace rocksdb
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int main(int argc, char** argv) {
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::testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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#else
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#include <stdio.h>
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int main(int /*argc*/, char** /*argv*/) {
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fprintf(stderr,
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"SKIPPED as DBImpl::DeleteFile is not supported in ROCKSDB_LITE\n");
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return 0;
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}
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#endif // !ROCKSDB_LITE
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