You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 
rocksdb/db/column_family_test.cc

637 lines
20 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 <algorithm>
#include <vector>
#include <string>
#include "db/db_impl.h"
#include "rocksdb/env.h"
#include "rocksdb/db.h"
#include "util/testharness.h"
#include "util/testutil.h"
#include "utilities/merge_operators.h"
namespace rocksdb {
namespace {
std::string RandomString(Random* rnd, int len) {
std::string r;
test::RandomString(rnd, len, &r);
return r;
}
} // anonymous namespace
class ColumnFamilyTest {
public:
ColumnFamilyTest() : rnd_(139) {
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() {
for (auto h : handles_) {
delete h;
}
handles_.clear();
names_.clear();
delete db_;
db_ = nullptr;
}
Status TryOpen(std::vector<std::string> cf,
std::vector<ColumnFamilyOptions> options = {}) {
std::vector<ColumnFamilyDescriptor> column_families;
names_.clear();
for (size_t i = 0; i < cf.size(); ++i) {
column_families.push_back(ColumnFamilyDescriptor(
cf[i], options.size() == 0 ? column_family_options_ : options[i]));
names_.push_back(cf[i]);
}
return DB::Open(db_options_, dbname_, column_families, &handles_, &db_);
}
void Open(std::vector<std::string> cf,
std::vector<ColumnFamilyOptions> options = {}) {
ASSERT_OK(TryOpen(cf, options));
}
void Open() {
Open({"default"});
}
DBImpl* dbfull() { return reinterpret_cast<DBImpl*>(db_); }
int GetProperty(int cf, std::string property) {
std::string value;
ASSERT_TRUE(dbfull()->GetProperty(handles_[cf], property, &value));
return std::stoi(value);
}
void Destroy() {
for (auto h : handles_) {
delete h;
}
handles_.clear();
names_.clear();
delete db_;
db_ = nullptr;
ASSERT_OK(DestroyDB(dbname_, Options(db_options_, column_family_options_)));
}
void CreateColumnFamilies(
const std::vector<std::string>& cfs,
const std::vector<ColumnFamilyOptions> options = {}) {
int cfi = handles_.size();
handles_.resize(cfi + cfs.size());
names_.resize(cfi + cfs.size());
for (size_t i = 0; i < cfs.size(); ++i) {
ASSERT_OK(db_->CreateColumnFamily(
options.size() == 0 ? column_family_options_ : options[i], cfs[i],
&handles_[cfi]));
names_[cfi] = cfs[i];
cfi++;
}
}
void Reopen(const std::vector<ColumnFamilyOptions> options = {}) {
std::vector<std::string> names;
for (auto name : names_) {
if (name != "") {
names.push_back(name);
}
}
Close();
assert(options.size() == 0 || names.size() == options.size());
Open(names, options);
}
void CreateColumnFamiliesAndReopen(const std::vector<std::string>& cfs) {
CreateColumnFamilies(cfs);
Reopen();
}
void DropColumnFamilies(const std::vector<int>& cfs) {
for (auto cf : cfs) {
ASSERT_OK(db_->DropColumnFamily(handles_[cf]));
delete handles_[cf];
handles_[cf] = nullptr;
names_[cf] = "";
}
}
void PutRandomData(int cf, int num, int key_value_size) {
for (int i = 0; i < num; ++i) {
// 10 bytes for key, rest is value
ASSERT_OK(Put(cf, test::RandomKey(&rnd_, 10),
RandomString(&rnd_, key_value_size - 10)));
}
}
void WaitForFlush(int cf) {
ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable(handles_[cf]));
}
Status Put(int cf, const std::string& key, const std::string& value) {
return db_->Put(WriteOptions(), handles_[cf], Slice(key), Slice(value));
}
Status Merge(int cf, const std::string& key, const std::string& value) {
return db_->Merge(WriteOptions(), handles_[cf], Slice(key), Slice(value));
}
Status Flush(int cf) {
return db_->Flush(FlushOptions(), handles_[cf]);
}
std::string Get(int cf, const std::string& key) {
ReadOptions options;
options.verify_checksums = true;
std::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 Compact(int cf, const Slice& start, const Slice& limit) {
ASSERT_OK(db_->CompactRange(handles_[cf], &start, &limit));
}
int NumTableFilesAtLevel(int cf, int level) {
std::string property;
ASSERT_TRUE(db_->GetProperty(
handles_[cf], "rocksdb.num-files-at-level" + NumberToString(level),
&property));
return atoi(property.c_str());
}
// Return spread of files per level
std::string FilesPerLevel(int cf) {
std::string result;
int last_non_zero_offset = 0;
for (int level = 0; level < column_family_options_.num_levels; level++) {
int f = NumTableFilesAtLevel(cf, level);
char buf[100];
snprintf(buf, sizeof(buf), "%s%d", (level ? "," : ""), f);
result += buf;
if (f > 0) {
last_non_zero_offset = result.size();
}
}
result.resize(last_non_zero_offset);
return result;
}
int CountLiveFiles(int cf) {
std::vector<LiveFileMetaData> metadata;
db_->GetLiveFilesMetaData(&metadata);
return static_cast<int>(metadata.size());
}
// Do n memtable flushes, each of which produces an sstable
// covering the range [small,large].
void MakeTables(int cf, int n, const std::string& small,
const std::string& large) {
for (int i = 0; i < n; i++) {
ASSERT_OK(Put(cf, small, "begin"));
ASSERT_OK(Put(cf, large, "end"));
ASSERT_OK(db_->Flush(FlushOptions(), handles_[cf]));
}
}
int CountLiveLogFiles() {
int ret = 0;
VectorLogPtr wal_files;
Status s;
// GetSortedWalFiles is a flakey function -- it gets all the wal_dir
// children files and then later checks for their existance. if some of the
// log files doesn't exist anymore, it reports an error. it does all of this
// without DB mutex held, so if a background process deletes the log file
// while the function is being executed, it returns an error. We retry the
// function 10 times to avoid the error failing the test
for (int retries = 0; retries < 10; ++retries) {
wal_files.clear();
s = db_->GetSortedWalFiles(wal_files);
if (s.ok()) {
break;
}
}
ASSERT_OK(s);
for (const auto& wal : wal_files) {
if (wal->Type() == kAliveLogFile) {
++ret;
}
}
return ret;
}
void AssertNumberOfImmutableMemtables(std::vector<int> num_per_cf) {
assert(num_per_cf.size() == handles_.size());
for (size_t i = 0; i < num_per_cf.size(); ++i) {
ASSERT_EQ(num_per_cf[i],
GetProperty(i, "rocksdb.num-immutable-mem-table"));
}
}
void CopyFile(const std::string& source, const std::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 = std::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());
}
std::vector<ColumnFamilyHandle*> handles_;
std::vector<std::string> names_;
ColumnFamilyOptions column_family_options_;
DBOptions db_options_;
std::string dbname_;
DB* db_ = nullptr;
Env* env_;
Random rnd_;
};
TEST(ColumnFamilyTest, AddDrop) {
Open();
CreateColumnFamilies({"one", "two", "three"});
DropColumnFamilies({2});
CreateColumnFamilies({"four"});
Close();
ASSERT_TRUE(TryOpen({"default"}).IsInvalidArgument());
Open({"default", "one", "three", "four"});
DropColumnFamilies({1});
Reopen();
Close();
std::vector<std::string> families;
ASSERT_OK(DB::ListColumnFamilies(db_options_, dbname_, &families));
sort(families.begin(), families.end());
ASSERT_TRUE(families ==
std::vector<std::string>({"default", "four", "three"}));
}
TEST(ColumnFamilyTest, DropTest) {
// first iteration - dont reopen DB before dropping
// second iteration - reopen DB before dropping
for (int iter = 0; iter < 2; ++iter) {
Open({"default"});
CreateColumnFamiliesAndReopen({"pikachu"});
for (int i = 0; i < 100; ++i) {
ASSERT_OK(Put(1, std::to_string(i), "bar" + std::to_string(i)));
}
ASSERT_OK(Flush(1));
if (iter == 1) {
Reopen();
}
ASSERT_EQ("bar1", Get(1, "1"));
ASSERT_EQ(CountLiveFiles(1), 1);
DropColumnFamilies({1});
// make sure that all files are deleted when we drop the column family
ASSERT_EQ(CountLiveFiles(1), 0);
Destroy();
}
}
TEST(ColumnFamilyTest, WriteBatchFailure) {
Open();
WriteBatch batch;
batch.Put(1, Slice("non-existing"), Slice("column-family"));
Status s = db_->Write(WriteOptions(), &batch);
ASSERT_TRUE(s.IsInvalidArgument());
CreateColumnFamilies({"one"});
ASSERT_OK(db_->Write(WriteOptions(), &batch));
Close();
}
TEST(ColumnFamilyTest, ReadWrite) {
Open();
CreateColumnFamiliesAndReopen({"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();
}
TEST(ColumnFamilyTest, IgnoreRecoveredLog) {
std::string backup_logs = dbname_ + "/backup_logs";
// delete old files in backup_logs directory
ASSERT_OK(env_->CreateDirIfMissing(dbname_));
ASSERT_OK(env_->CreateDirIfMissing(backup_logs));
std::vector<std::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();
Open();
CreateColumnFamilies({"cf1", "cf2"});
// fill up the DB
std::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
std::vector<std::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
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);
}
}
}
}
}
TEST(ColumnFamilyTest, FlushTest) {
Open();
CreateColumnFamiliesAndReopen({"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 i = 0; i < 3; ++i) {
Flush(i);
}
Reopen();
for (int iter = 0; iter <= 2; ++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();
}
// Makes sure that obsolete log files get deleted
TEST(ColumnFamilyTest, LogDeletionTest) {
column_family_options_.write_buffer_size = 100000; // 100KB
Open();
int micros_wait_for_log_deletion = 20000;
CreateColumnFamilies({"one", "two", "three", "four"});
// Each bracket is one log file. if number is in (), it means
// we don't need it anymore (it's been flushed)
// []
ASSERT_EQ(CountLiveLogFiles(), 0);
PutRandomData(0, 1, 100);
// [0]
PutRandomData(1, 1, 100);
// [0, 1]
PutRandomData(1, 1000, 100);
WaitForFlush(1);
// [0, (1)] [1]
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
ASSERT_EQ(CountLiveLogFiles(), 2);
PutRandomData(0, 1, 100);
// [0, (1)] [0, 1]
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
ASSERT_EQ(CountLiveLogFiles(), 2);
PutRandomData(2, 1, 100);
// [0, (1)] [0, 1, 2]
PutRandomData(2, 1000, 100);
WaitForFlush(2);
// [0, (1)] [0, 1, (2)] [2]
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
ASSERT_EQ(CountLiveLogFiles(), 3);
PutRandomData(2, 1000, 100);
WaitForFlush(2);
// [0, (1)] [0, 1, (2)] [(2)] [2]
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
ASSERT_EQ(CountLiveLogFiles(), 4);
PutRandomData(3, 1, 100);
// [0, (1)] [0, 1, (2)] [(2)] [2, 3]
PutRandomData(1, 1, 100);
// [0, (1)] [0, 1, (2)] [(2)] [1, 2, 3]
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
ASSERT_EQ(CountLiveLogFiles(), 4);
PutRandomData(1, 1000, 100);
WaitForFlush(1);
// [0, (1)] [0, (1), (2)] [(2)] [(1), 2, 3] [1]
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
ASSERT_EQ(CountLiveLogFiles(), 5);
PutRandomData(0, 1000, 100);
WaitForFlush(0);
// [(0), (1)] [(0), (1), (2)] [(2)] [(1), 2, 3] [1, (0)] [0]
// delete obsolete logs -->
// [(1), 2, 3] [1, (0)] [0]
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
ASSERT_EQ(CountLiveLogFiles(), 3);
PutRandomData(0, 1000, 100);
WaitForFlush(0);
// [(1), 2, 3] [1, (0)], [(0)] [0]
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
ASSERT_EQ(CountLiveLogFiles(), 4);
PutRandomData(1, 1000, 100);
WaitForFlush(1);
// [(1), 2, 3] [(1), (0)] [(0)] [0, (1)] [1]
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
ASSERT_EQ(CountLiveLogFiles(), 5);
PutRandomData(2, 1000, 100);
WaitForFlush(2);
// [(1), (2), 3] [(1), (0)] [(0)] [0, (1)] [1, (2)], [2]
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
ASSERT_EQ(CountLiveLogFiles(), 6);
PutRandomData(3, 1000, 100);
WaitForFlush(3);
// [(1), (2), (3)] [(1), (0)] [(0)] [0, (1)] [1, (2)], [2, (3)] [3]
// delete obsolete logs -->
// [0, (1)] [1, (2)], [2, (3)] [3]
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
ASSERT_EQ(CountLiveLogFiles(), 4);
Close();
}
// Makes sure that obsolete log files get deleted
TEST(ColumnFamilyTest, DifferentWriteBufferSizes) {
Open();
CreateColumnFamilies({"one", "two", "three"});
ColumnFamilyOptions default_cf, one, two, three;
// setup options. all column families have max_write_buffer_number setup to 10
// "default" -> 100KB memtable, start flushing immediatelly
// "one" -> 200KB memtable, start flushing with two immutable memtables
// "two" -> 1MB memtable, start flushing with three immutable memtables
// "three" -> 90KB memtable, start flushing with four immutable memtables
default_cf.write_buffer_size = 100000;
default_cf.max_write_buffer_number = 10;
default_cf.min_write_buffer_number_to_merge = 1;
one.write_buffer_size = 200000;
one.max_write_buffer_number = 10;
one.min_write_buffer_number_to_merge = 2;
two.write_buffer_size = 1000000;
two.max_write_buffer_number = 10;
two.min_write_buffer_number_to_merge = 3;
three.write_buffer_size = 90000;
three.max_write_buffer_number = 10;
three.min_write_buffer_number_to_merge = 4;
Reopen({default_cf, one, two, three});
int micros_wait_for_flush = 100000;
PutRandomData(0, 100, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
ASSERT_EQ(CountLiveLogFiles(), 1);
PutRandomData(1, 200, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 0, 0});
ASSERT_EQ(CountLiveLogFiles(), 2);
PutRandomData(2, 1000, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 1, 0});
ASSERT_EQ(CountLiveLogFiles(), 3);
PutRandomData(2, 1000, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 2, 0});
ASSERT_EQ(CountLiveLogFiles(), 4);
PutRandomData(3, 90, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 2, 1});
ASSERT_EQ(CountLiveLogFiles(), 5);
PutRandomData(3, 90, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 2, 2});
ASSERT_EQ(CountLiveLogFiles(), 6);
PutRandomData(3, 90, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 2, 3});
ASSERT_EQ(CountLiveLogFiles(), 7);
PutRandomData(0, 100, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 2, 3});
ASSERT_EQ(CountLiveLogFiles(), 8);
PutRandomData(2, 100, 10000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 0, 3});
ASSERT_EQ(CountLiveLogFiles(), 9);
PutRandomData(3, 90, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 0, 0});
ASSERT_EQ(CountLiveLogFiles(), 10);
PutRandomData(3, 90, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 0, 1});
ASSERT_EQ(CountLiveLogFiles(), 11);
PutRandomData(1, 200, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 0, 0, 1});
ASSERT_EQ(CountLiveLogFiles(), 5);
PutRandomData(3, 90*6, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
ASSERT_EQ(CountLiveLogFiles(), 12);
PutRandomData(0, 100, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
ASSERT_EQ(CountLiveLogFiles(), 12);
PutRandomData(2, 3*100, 10000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
ASSERT_EQ(CountLiveLogFiles(), 12);
PutRandomData(1, 2*200, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
ASSERT_EQ(CountLiveLogFiles(), 7);
Close();
}
} // namespace rocksdb
int main(int argc, char** argv) {
return rocksdb::test::RunAllTests();
}