fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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295 lines
9.0 KiB
295 lines
9.0 KiB
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same 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 "rocksdb/db.h"
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#include "db/db_impl.h"
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#include "db/filename.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 "util/testharness.h"
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#include "util/testutil.h"
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#include "rocksdb/env.h"
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#include "rocksdb/transaction_log.h"
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#include <vector>
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#include <stdlib.h>
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#include <map>
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#include <string>
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namespace rocksdb {
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class DeleteFileTest {
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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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DeleteFileTest() {
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db_ = nullptr;
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env_ = Env::Default();
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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::TmpDir() + "/deletefile_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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ASSERT_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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}
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void AddKeys(int numkeys, int startkey = 0) {
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WriteOptions options;
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options.sync = false;
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ReadOptions roptions;
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for (int i = startkey; i < (numkeys + startkey) ; i++) {
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std::string temp = std::to_string(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 CreateTwoLevels() {
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AddKeys(50000, 10000);
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DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
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ASSERT_OK(dbi->TEST_FlushMemTable());
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ASSERT_OK(dbi->TEST_WaitForFlushMemTable());
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AddKeys(50000, 10000);
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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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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(DeleteFileTest, AddKeysAndQueryLevels) {
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CreateTwoLevels();
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std::vector<LiveFileMetaData> metadata;
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std::vector<int> keysinlevel;
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db_->GetLiveFilesMetaData(&metadata);
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std::string level1file = "";
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int level1keycount = 0;
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std::string level2file = "";
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int level2keycount = 0;
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int level1index = 0;
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int level2index = 1;
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ASSERT_EQ((int)metadata.size(), 2);
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if (metadata[0].level == 2) {
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level1index = 1;
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level2index = 0;
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}
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level1file = metadata[level1index].name;
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int startkey = atoi(metadata[level1index].smallestkey.c_str());
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int endkey = atoi(metadata[level1index].largestkey.c_str());
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level1keycount = (endkey - startkey + 1);
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level2file = metadata[level2index].name;
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startkey = atoi(metadata[level2index].smallestkey.c_str());
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endkey = atoi(metadata[level2index].largestkey.c_str());
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level2keycount = (endkey - startkey + 1);
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// COntrolled setup. Levels 1 and 2 should both have 50K files.
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// This is a little fragile as it depends on the current
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// compaction heuristics.
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ASSERT_EQ(level1keycount, 50000);
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ASSERT_EQ(level2keycount, 50000);
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Status status = db_->DeleteFile("0.sst");
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ASSERT_TRUE(status.IsInvalidArgument());
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// intermediate level files cannot be deleted.
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status = db_->DeleteFile(level1file);
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ASSERT_TRUE(status.IsInvalidArgument());
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// Lowest level file deletion should succeed.
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ASSERT_OK(db_->DeleteFile(level2file));
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CloseDB();
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}
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TEST(DeleteFileTest, PurgeObsoleteFilesTest) {
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CreateTwoLevels();
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// there should be only one (empty) log file because CreateTwoLevels()
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// flushes the memtables to disk
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CheckFileTypeCounts(options_.wal_dir, 1, 0, 0);
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// 2 ssts, 1 manifest
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CheckFileTypeCounts(dbname_, 0, 2, 1);
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std::string first("0"), last("999999");
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Slice first_slice(first), last_slice(last);
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db_->CompactRange(&first_slice, &last_slice, true, 2);
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// 1 sst after compaction
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CheckFileTypeCounts(dbname_, 0, 1, 1);
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// this time, we keep an iterator alive
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ReopenDB(true);
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Iterator *itr = 0;
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CreateTwoLevels();
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itr = db_->NewIterator(ReadOptions());
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db_->CompactRange(&first_slice, &last_slice, true, 2);
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// 3 sst after compaction with live iterator
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CheckFileTypeCounts(dbname_, 0, 3, 1);
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delete itr;
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// 1 sst after iterator deletion
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CheckFileTypeCounts(dbname_, 0, 1, 1);
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CloseDB();
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}
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TEST(DeleteFileTest, DeleteFileWithIterator) {
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CreateTwoLevels();
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ReadOptions options;
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Iterator* it = db_->NewIterator(options);
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std::vector<LiveFileMetaData> metadata;
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db_->GetLiveFilesMetaData(&metadata);
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std::string level2file = "";
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ASSERT_EQ((int)metadata.size(), 2);
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if (metadata[0].level == 1) {
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level2file = metadata[1].name;
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} else {
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level2file = metadata[0].name;
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}
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Status status = db_->DeleteFile(level2file);
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fprintf(stdout, "Deletion status %s: %s\n",
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level2file.c_str(), status.ToString().c_str());
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ASSERT_TRUE(status.ok());
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it->SeekToFirst();
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int numKeysIterated = 0;
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while(it->Valid()) {
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numKeysIterated++;
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it->Next();
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}
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ASSERT_EQ(numKeysIterated, 50000);
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delete it;
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CloseDB();
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}
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TEST(DeleteFileTest, DeleteLogFiles) {
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AddKeys(10, 0);
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VectorLogPtr logfiles;
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db_->GetSortedWalFiles(logfiles);
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ASSERT_GT(logfiles.size(), 0UL);
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// Take the last log file which is expected to be alive and try to delete it
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// Should not succeed because live logs are not allowed to be deleted
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std::unique_ptr<LogFile> alive_log = std::move(logfiles.back());
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ASSERT_EQ(alive_log->Type(), kAliveLogFile);
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ASSERT_TRUE(env_->FileExists(options_.wal_dir + "/" + alive_log->PathName()));
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fprintf(stdout, "Deleting alive log file %s\n",
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alive_log->PathName().c_str());
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ASSERT_TRUE(!db_->DeleteFile(alive_log->PathName()).ok());
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ASSERT_TRUE(env_->FileExists(options_.wal_dir + "/" + alive_log->PathName()));
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logfiles.clear();
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// Call Flush to bring about a new working log file and add more keys
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// Call Flush again to flush out memtable and move alive log to archived log
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// and try to delete the archived log file
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FlushOptions fopts;
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db_->Flush(fopts);
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AddKeys(10, 0);
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db_->Flush(fopts);
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db_->GetSortedWalFiles(logfiles);
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ASSERT_GT(logfiles.size(), 0UL);
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std::unique_ptr<LogFile> archived_log = std::move(logfiles.front());
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ASSERT_EQ(archived_log->Type(), kArchivedLogFile);
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ASSERT_TRUE(env_->FileExists(options_.wal_dir + "/" +
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archived_log->PathName()));
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fprintf(stdout, "Deleting archived log file %s\n",
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archived_log->PathName().c_str());
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ASSERT_OK(db_->DeleteFile(archived_log->PathName()));
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ASSERT_TRUE(!env_->FileExists(options_.wal_dir + "/" +
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archived_log->PathName()));
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CloseDB();
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}
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} //namespace rocksdb
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int main(int argc, char** argv) {
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return rocksdb::test::RunAllTests();
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}
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