mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-26 07:30:54 +00:00
064294081b
Summary: Add new CheckFileExists method. Considered changing the FileExists api but didn't want to break anyone's builds. Test Plan: unit tests Reviewers: yhchiang, igor, sdong Reviewed By: sdong Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D42003
116 lines
3 KiB
C++
116 lines
3 KiB
C++
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
|
|
#include <mutex>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "rocksdb/db.h"
|
|
#include "rocksdb/env.h"
|
|
#include "util/string_util.h"
|
|
#include "util/testharness.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
class CompactFilesTest : public testing::Test {
|
|
public:
|
|
CompactFilesTest() {
|
|
env_ = Env::Default();
|
|
db_name_ = test::TmpDir(env_) + "/compact_files_test";
|
|
}
|
|
|
|
std::string db_name_;
|
|
Env* env_;
|
|
};
|
|
|
|
// A class which remembers the name of each flushed file.
|
|
class FlushedFileCollector : public EventListener {
|
|
public:
|
|
FlushedFileCollector() {}
|
|
~FlushedFileCollector() {}
|
|
|
|
virtual void OnFlushCompleted(
|
|
DB* db, const FlushJobInfo& info) override {
|
|
std::lock_guard<std::mutex> lock(mutex_);
|
|
flushed_files_.push_back(info.file_path);
|
|
}
|
|
|
|
std::vector<std::string> GetFlushedFiles() {
|
|
std::lock_guard<std::mutex> lock(mutex_);
|
|
std::vector<std::string> result;
|
|
for (auto fname : flushed_files_) {
|
|
result.push_back(fname);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
private:
|
|
std::vector<std::string> flushed_files_;
|
|
std::mutex mutex_;
|
|
};
|
|
|
|
TEST_F(CompactFilesTest, ObsoleteFiles) {
|
|
Options options;
|
|
// to trigger compaction more easily
|
|
const int kWriteBufferSize = 10000;
|
|
options.create_if_missing = true;
|
|
// Disable RocksDB background compaction.
|
|
options.compaction_style = kCompactionStyleNone;
|
|
// Small slowdown and stop trigger for experimental purpose.
|
|
options.level0_slowdown_writes_trigger = 20;
|
|
options.level0_stop_writes_trigger = 20;
|
|
options.write_buffer_size = kWriteBufferSize;
|
|
options.max_write_buffer_number = 2;
|
|
options.compression = kNoCompression;
|
|
|
|
// Add listener
|
|
FlushedFileCollector* collector = new FlushedFileCollector();
|
|
options.listeners.emplace_back(collector);
|
|
|
|
DB* db = nullptr;
|
|
DestroyDB(db_name_, options);
|
|
Status s = DB::Open(options, db_name_, &db);
|
|
assert(s.ok());
|
|
assert(db);
|
|
|
|
// create couple files
|
|
for (int i = 1000; i < 2000; ++i) {
|
|
db->Put(WriteOptions(), ToString(i),
|
|
std::string(kWriteBufferSize / 10, 'a' + (i % 26)));
|
|
}
|
|
|
|
auto l0_files = collector->GetFlushedFiles();
|
|
CompactionOptions compact_opt;
|
|
compact_opt.compression = kNoCompression;
|
|
compact_opt.output_file_size_limit = kWriteBufferSize * 5;
|
|
ASSERT_OK(db->CompactFiles(CompactionOptions(), l0_files, 1));
|
|
|
|
// verify all compaction input files are deleted
|
|
for (auto fname : l0_files) {
|
|
ASSERT_EQ(Status::NotFound(), env_->FileExists(fname));
|
|
}
|
|
delete db;
|
|
}
|
|
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|
|
|
|
#else
|
|
#include <stdio.h>
|
|
|
|
int main(int argc, char** argv) {
|
|
fprintf(stderr,
|
|
"SKIPPED as DBImpl::CompactFiles is not supported in ROCKSDB_LITE\n");
|
|
return 0;
|
|
}
|
|
|
|
#endif // !ROCKSDB_LITE
|