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rocksdb/db/column_family_test.cc

245 lines
7.2 KiB

// Copyright (c) 2013, 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.
//
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "db/db_impl.h"
#include "rocksdb/env.h"
#include "rocksdb/db.h"
#include "util/testharness.h"
#include "utilities/merge_operators.h"
#include <algorithm>
#include <vector>
#include <string>
namespace rocksdb {
using namespace std;
class ColumnFamilyTest {
public:
ColumnFamilyTest() {
env_ = Env::Default();
dbname_ = test::TmpDir() + "/column_family_test";
db_options_.create_if_missing = true;
DestroyDB(dbname_, Options(db_options_, column_family_options_));
}
void Close() {
delete db_;
db_ = nullptr;
}
Status Open(vector<string> cf) {
vector<ColumnFamilyDescriptor> column_families;
for (auto x : cf) {
column_families.push_back(
ColumnFamilyDescriptor(x, column_family_options_));
}
return DB::OpenWithColumnFamilies(db_options_, dbname_, column_families,
&handles_, &db_);
}
void Destroy() {
delete db_;
db_ = nullptr;
ASSERT_OK(DestroyDB(dbname_, Options(db_options_, column_family_options_)));
}
void CreateColumnFamilies(const vector<string>& cfs) {
int cfi = handles_.size();
handles_.resize(cfi + cfs.size());
for (auto cf : cfs) {
ASSERT_OK(db_->CreateColumnFamily(column_family_options_, cf,
&handles_[cfi++]));
}
}
Status Put(int cf, const string& key, const string& value) {
return db_->Put(WriteOptions(), handles_[cf], Slice(key), Slice(value));
}
Status Merge(int cf, const string& key, const string& value) {
return db_->Merge(WriteOptions(), handles_[cf], Slice(key), Slice(value));
}
string Get(int cf, const string& key) {
ReadOptions options;
options.verify_checksums = true;
string result;
Status s = db_->Get(options, handles_[cf], Slice(key), &result);
if (s.IsNotFound()) {
result = "NOT_FOUND";
} else if (!s.ok()) {
result = s.ToString();
}
return result;
}
void CopyFile(const string& source, const string& destination,
uint64_t size = 0) {
const EnvOptions soptions;
unique_ptr<SequentialFile> srcfile;
ASSERT_OK(env_->NewSequentialFile(source, &srcfile, soptions));
unique_ptr<WritableFile> destfile;
ASSERT_OK(env_->NewWritableFile(destination, &destfile, soptions));
if (size == 0) {
// default argument means copy everything
ASSERT_OK(env_->GetFileSize(source, &size));
}
char buffer[4096];
Slice slice;
while (size > 0) {
uint64_t one = min(uint64_t(sizeof(buffer)), size);
ASSERT_OK(srcfile->Read(one, &slice, buffer));
ASSERT_OK(destfile->Append(slice));
size -= slice.size();
}
ASSERT_OK(destfile->Close());
}
vector<ColumnFamilyHandle> handles_;
ColumnFamilyOptions column_family_options_;
DBOptions db_options_;
string dbname_;
DB* db_;
Env* env_;
};
TEST(ColumnFamilyTest, AddDrop) {
ASSERT_OK(Open({"default"}));
ColumnFamilyHandle handles[4];
ASSERT_OK(
db_->CreateColumnFamily(column_family_options_, "one", &handles[0]));
ASSERT_OK(
db_->CreateColumnFamily(column_family_options_, "two", &handles[1]));
ASSERT_OK(
db_->CreateColumnFamily(column_family_options_, "three", &handles[2]));
ASSERT_OK(db_->DropColumnFamily(handles[1]));
ASSERT_OK(
db_->CreateColumnFamily(column_family_options_, "four", &handles[3]));
Close();
ASSERT_TRUE(Open({"default"}).IsInvalidArgument());
ASSERT_OK(Open({"default", "one", "three", "four"}));
Close();
vector<string> families;
ASSERT_OK(DB::ListColumnFamilies(db_options_, dbname_, &families));
sort(families.begin(), families.end());
ASSERT_TRUE(families == vector<string>({"default", "four", "one", "three"}));
}
TEST(ColumnFamilyTest, ReadWrite) {
ASSERT_OK(Open({"default"}));
CreateColumnFamilies({"one", "two"});
Close();
ASSERT_OK(Open({"default", "one", "two"}));
ASSERT_OK(Put(0, "foo", "v1"));
ASSERT_OK(Put(0, "bar", "v2"));
ASSERT_OK(Put(1, "mirko", "v3"));
ASSERT_OK(Put(0, "foo", "v2"));
ASSERT_OK(Put(2, "fodor", "v5"));
for (int iter = 0; iter <= 3; ++iter) {
ASSERT_EQ("v2", Get(0, "foo"));
ASSERT_EQ("v2", Get(0, "bar"));
ASSERT_EQ("v3", Get(1, "mirko"));
ASSERT_EQ("v5", Get(2, "fodor"));
ASSERT_EQ("NOT_FOUND", Get(0, "fodor"));
ASSERT_EQ("NOT_FOUND", Get(1, "fodor"));
ASSERT_EQ("NOT_FOUND", Get(2, "foo"));
if (iter <= 1) {
// reopen
Close();
ASSERT_OK(Open({"default", "one", "two"}));
}
}
Close();
}
TEST(ColumnFamilyTest, IgnoreRecoveredLog) {
string backup_logs = dbname_ + "/backup_logs";
// delete old files in backup_logs directory
ASSERT_OK(env_->CreateDirIfMissing(dbname_));
ASSERT_OK(env_->CreateDirIfMissing(backup_logs));
vector<string> old_files;
env_->GetChildren(backup_logs, &old_files);
for (auto& file : old_files) {
if (file != "." && file != "..") {
env_->DeleteFile(backup_logs + "/" + file);
}
}
column_family_options_.merge_operator =
MergeOperators::CreateUInt64AddOperator();
db_options_.wal_dir = dbname_ + "/logs";
Destroy();
ASSERT_OK(Open({"default"}));
CreateColumnFamilies({"cf1", "cf2"});
// fill up the DB
string one, two, three;
PutFixed64(&one, 1);
PutFixed64(&two, 2);
PutFixed64(&three, 3);
ASSERT_OK(Merge(0, "foo", one));
ASSERT_OK(Merge(1, "mirko", one));
ASSERT_OK(Merge(0, "foo", one));
ASSERT_OK(Merge(2, "bla", one));
ASSERT_OK(Merge(2, "fodor", one));
ASSERT_OK(Merge(0, "bar", one));
ASSERT_OK(Merge(2, "bla", one));
ASSERT_OK(Merge(1, "mirko", two));
ASSERT_OK(Merge(1, "franjo", one));
// copy the logs to backup
vector<string> logs;
env_->GetChildren(db_options_.wal_dir, &logs);
for (auto& log : logs) {
if (log != ".." && log != ".") {
CopyFile(db_options_.wal_dir + "/" + log, backup_logs + "/" + log);
}
}
// recover the DB
Close();
// 1. check consistency
// 2. copy the logs from backup back to WAL dir. if the recovery happens
// again on the same log files, this should lead to incorrect results
// due to applying merge operator twice
// 3. check consistency
for (int iter = 0; iter < 2; ++iter) {
// assert consistency
ASSERT_OK(Open({"default", "cf1", "cf2"}));
ASSERT_EQ(two, Get(0, "foo"));
ASSERT_EQ(one, Get(0, "bar"));
ASSERT_EQ(three, Get(1, "mirko"));
ASSERT_EQ(one, Get(1, "franjo"));
ASSERT_EQ(one, Get(2, "fodor"));
ASSERT_EQ(two, Get(2, "bla"));
Close();
if (iter == 0) {
// copy the logs from backup back to wal dir
for (auto& log : logs) {
if (log != ".." && log != ".") {
CopyFile(backup_logs + "/" + log, db_options_.wal_dir + "/" + log);
}
}
}
}
}
} // namespace rocksdb
int main(int argc, char** argv) {
return rocksdb::test::RunAllTests();
}