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rocksdb/db/column_family_test.cc

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// 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 <thread>
#include "db/db_impl.h"
#include "rocksdb/db.h"
#include "rocksdb/env.h"
#include "rocksdb/iterator.h"
#include "util/string_util.h"
#include "util/testharness.h"
#include "util/testutil.h"
#include "util/coding.h"
#include "util/sync_point.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
// counts how many operations were performed
class EnvCounter : public EnvWrapper {
public:
explicit EnvCounter(Env* base)
: EnvWrapper(base), num_new_writable_file_(0) {}
int GetNumberOfNewWritableFileCalls() {
return num_new_writable_file_;
}
Status NewWritableFile(const std::string& f, unique_ptr<WritableFile>* r,
const EnvOptions& soptions) override {
++num_new_writable_file_;
return EnvWrapper::NewWritableFile(f, r, soptions);
}
private:
int num_new_writable_file_;
};
class ColumnFamilyTest : public testing::Test {
public:
ColumnFamilyTest() : rnd_(139) {
env_ = new EnvCounter(Env::Default());
dbname_ = test::TmpDir() + "/column_family_test";
db_options_.create_if_missing = true;
db_options_.fail_if_options_file_error = true;
db_options_.env = env_;
DestroyDB(dbname_, Options(db_options_, column_family_options_));
}
~ColumnFamilyTest() {
delete env_;
}
void Close() {
for (auto h : handles_) {
if (h) {
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_);
}
Status OpenReadOnly(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::OpenForReadOnly(db_options_, dbname_, column_families, &handles_,
&db_);
}
#ifndef ROCKSDB_LITE // ReadOnlyDB is not supported
void AssertOpenReadOnly(std::vector<std::string> cf,
std::vector<ColumnFamilyOptions> options = {}) {
ASSERT_OK(OpenReadOnly(cf, options));
}
#endif // !ROCKSDB_LITE
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;
EXPECT_TRUE(dbfull()->GetProperty(handles_[cf], property, &value));
#ifndef CYGWIN
return std::stoi(value);
#else
return std::strtol(value.c_str(), 0 /* off */, 10 /* base */);
#endif
}
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 = static_cast<int>(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) {
#ifndef ROCKSDB_LITE // TEST functions are not supported in lite
ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable(handles_[cf]));
#endif // !ROCKSDB_LITE
}
void WaitForCompaction() {
#ifndef ROCKSDB_LITE // TEST functions are not supported in lite
ASSERT_OK(dbfull()->TEST_WaitForCompact());
#endif // !ROCKSDB_LITE
}
uint64_t MaxTotalInMemoryState() {
#ifndef ROCKSDB_LITE
return dbfull()->TEST_MaxTotalInMemoryState();
#else
return 0;
#endif // !ROCKSDB_LITE
}
void AssertMaxTotalInMemoryState(uint64_t value) {
ASSERT_EQ(value, MaxTotalInMemoryState());
}
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 CompactAll(int cf) {
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), handles_[cf], nullptr,
nullptr));
}
void Compact(int cf, const Slice& start, const Slice& limit) {
ASSERT_OK(
db_->CompactRange(CompactRangeOptions(), handles_[cf], &start, &limit));
}
int NumTableFilesAtLevel(int level, int cf) {
return GetProperty(cf,
"rocksdb.num-files-at-level" + ToString(level));
}
#ifndef ROCKSDB_LITE
// 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 < dbfull()->NumberLevels(handles_[cf]); level++) {
int f = NumTableFilesAtLevel(level, cf);
char buf[100];
snprintf(buf, sizeof(buf), "%s%d", (level ? "," : ""), f);
result += buf;
if (f > 0) {
last_non_zero_offset = static_cast<int>(result.size());
}
}
result.resize(last_non_zero_offset);
return result;
}
#endif
void AssertFilesPerLevel(const std::string& value, int cf) {
#ifndef ROCKSDB_LITE
ASSERT_EQ(value, FilesPerLevel(cf));
#endif
}
#ifndef ROCKSDB_LITE // GetLiveFilesMetaData is not supported
int CountLiveFiles() {
std::vector<LiveFileMetaData> metadata;
db_->GetLiveFilesMetaData(&metadata);
return static_cast<int>(metadata.size());
}
#endif // !ROCKSDB_LITE
void AssertCountLiveFiles(int expected_value) {
#ifndef ROCKSDB_LITE
ASSERT_EQ(expected_value, CountLiveFiles());
#endif
}
// 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]));
}
}
#ifndef ROCKSDB_LITE // GetSortedWalFiles is not supported
int CountLiveLogFiles() {
int micros_wait_for_log_deletion = 20000;
env_->SleepForMicroseconds(micros_wait_for_log_deletion);
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 existence. 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;
}
}
EXPECT_OK(s);
for (const auto& wal : wal_files) {
if (wal->Type() == kAliveLogFile) {
++ret;
}
}
return ret;
return 0;
}
#endif // !ROCKSDB_LITE
void AssertCountLiveLogFiles(int value) {
#ifndef ROCKSDB_LITE // GetSortedWalFiles is not supported
ASSERT_EQ(value, CountLiveLogFiles());
#endif // !ROCKSDB_LITE
}
void AssertNumberOfImmutableMemtables(std::vector<int> num_per_cf) {
assert(num_per_cf.size() == handles_.size());
#ifndef ROCKSDB_LITE // GetProperty is not supported in lite
for (size_t i = 0; i < num_per_cf.size(); ++i) {
ASSERT_EQ(num_per_cf[i], GetProperty(static_cast<int>(i),
"rocksdb.num-immutable-mem-table"));
}
#endif // !ROCKSDB_LITE
}
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;
EnvCounter* env_;
Random rnd_;
};
TEST_F(ColumnFamilyTest, DontReuseColumnFamilyID) {
for (int iter = 0; iter < 3; ++iter) {
Open();
CreateColumnFamilies({"one", "two", "three"});
for (size_t i = 0; i < handles_.size(); ++i) {
auto cfh = reinterpret_cast<ColumnFamilyHandleImpl*>(handles_[i]);
ASSERT_EQ(i, cfh->GetID());
}
if (iter == 1) {
Reopen();
}
DropColumnFamilies({3});
Reopen();
if (iter == 2) {
// this tests if max_column_family is correctly persisted with
// WriteSnapshot()
Reopen();
}
CreateColumnFamilies({"three2"});
// ID 3 that was used for dropped column family "three" should not be reused
auto cfh3 = reinterpret_cast<ColumnFamilyHandleImpl*>(handles_[3]);
ASSERT_EQ(4U, cfh3->GetID());
Close();
Destroy();
}
}
TEST_F(ColumnFamilyTest, AddDrop) {
Open();
CreateColumnFamilies({"one", "two", "three"});
ASSERT_EQ("NOT_FOUND", Get(1, "fodor"));
ASSERT_EQ("NOT_FOUND", Get(2, "fodor"));
DropColumnFamilies({2});
ASSERT_EQ("NOT_FOUND", Get(1, "fodor"));
CreateColumnFamilies({"four"});
ASSERT_EQ("NOT_FOUND", Get(3, "fodor"));
ASSERT_OK(Put(1, "fodor", "mirko"));
ASSERT_EQ("mirko", Get(1, "fodor"));
ASSERT_EQ("NOT_FOUND", Get(3, "fodor"));
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_F(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, ToString(i), "bar" + ToString(i)));
}
ASSERT_OK(Flush(1));
if (iter == 1) {
Reopen();
}
ASSERT_EQ("bar1", Get(1, "1"));
AssertCountLiveFiles(1);
DropColumnFamilies({1});
// make sure that all files are deleted when we drop the column family
AssertCountLiveFiles(0);
Destroy();
}
}
TEST_F(ColumnFamilyTest, WriteBatchFailure) {
Open();
CreateColumnFamiliesAndReopen({"one", "two"});
WriteBatch batch;
batch.Put(handles_[0], Slice("existing"), Slice("column-family"));
batch.Put(handles_[1], Slice("non-existing"), Slice("column-family"));
ASSERT_OK(db_->Write(WriteOptions(), &batch));
DropColumnFamilies({1});
WriteOptions woptions_ignore_missing_cf;
woptions_ignore_missing_cf.ignore_missing_column_families = true;
batch.Put(handles_[0], Slice("still here"), Slice("column-family"));
ASSERT_OK(db_->Write(woptions_ignore_missing_cf, &batch));
ASSERT_EQ("column-family", Get(0, "still here"));
Status s = db_->Write(WriteOptions(), &batch);
ASSERT_TRUE(s.IsInvalidArgument());
Close();
}
TEST_F(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_F(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_F(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 j = 0; j < 2; j++) {
ReadOptions ro;
std::vector<Iterator*> iterators;
// Hold super version.
if (j == 0) {
ASSERT_OK(db_->NewIterators(ro, handles_, &iterators));
}
for (int i = 0; i < 3; ++i) {
uint64_t max_total_in_memory_state =
MaxTotalInMemoryState();
Flush(i);
AssertMaxTotalInMemoryState(max_total_in_memory_state);
}
ASSERT_OK(Put(1, "foofoo", "bar"));
ASSERT_OK(Put(0, "foofoo", "bar"));
for (auto* it : iterators) {
delete it;
}
}
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_F(ColumnFamilyTest, LogDeletionTest) {
db_options_.max_total_wal_size = std::numeric_limits<uint64_t>::max();
column_family_options_.arena_block_size = 4 * 1024;
column_family_options_.write_buffer_size = 100000; // 100KB
Open();
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)
// []
AssertCountLiveLogFiles(0);
PutRandomData(0, 1, 100);
// [0]
PutRandomData(1, 1, 100);
// [0, 1]
PutRandomData(1, 1000, 100);
WaitForFlush(1);
// [0, (1)] [1]
AssertCountLiveLogFiles(2);
PutRandomData(0, 1, 100);
// [0, (1)] [0, 1]
AssertCountLiveLogFiles(2);
PutRandomData(2, 1, 100);
// [0, (1)] [0, 1, 2]
PutRandomData(2, 1000, 100);
WaitForFlush(2);
// [0, (1)] [0, 1, (2)] [2]
AssertCountLiveLogFiles(3);
PutRandomData(2, 1000, 100);
WaitForFlush(2);
// [0, (1)] [0, 1, (2)] [(2)] [2]
AssertCountLiveLogFiles(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]
AssertCountLiveLogFiles(4);
PutRandomData(1, 1000, 100);
WaitForFlush(1);
// [0, (1)] [0, (1), (2)] [(2)] [(1), 2, 3] [1]
AssertCountLiveLogFiles(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]
AssertCountLiveLogFiles(3);
PutRandomData(0, 1000, 100);
WaitForFlush(0);
// [(1), 2, 3] [1, (0)], [(0)] [0]
AssertCountLiveLogFiles(4);
PutRandomData(1, 1000, 100);
WaitForFlush(1);
// [(1), 2, 3] [(1), (0)] [(0)] [0, (1)] [1]
AssertCountLiveLogFiles(5);
PutRandomData(2, 1000, 100);
WaitForFlush(2);
// [(1), (2), 3] [(1), (0)] [(0)] [0, (1)] [1, (2)], [2]
AssertCountLiveLogFiles(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]
AssertCountLiveLogFiles(4);
Close();
}
// Makes sure that obsolete log files get deleted
TEST_F(ColumnFamilyTest, DifferentWriteBufferSizes) {
// disable flushing stale column families
db_options_.max_total_wal_size = std::numeric_limits<uint64_t>::max();
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.arena_block_size = 4 * 4096;
default_cf.max_write_buffer_number = 10;
default_cf.min_write_buffer_number_to_merge = 1;
default_cf.max_write_buffer_number_to_maintain = 0;
one.write_buffer_size = 200000;
one.arena_block_size = 4 * 4096;
one.max_write_buffer_number = 10;
one.min_write_buffer_number_to_merge = 2;
one.max_write_buffer_number_to_maintain = 1;
two.write_buffer_size = 1000000;
two.arena_block_size = 4 * 4096;
two.max_write_buffer_number = 10;
two.min_write_buffer_number_to_merge = 3;
two.max_write_buffer_number_to_maintain = 2;
three.write_buffer_size = 4096 * 22;
three.arena_block_size = 4096;
three.max_write_buffer_number = 10;
three.min_write_buffer_number_to_merge = 4;
three.max_write_buffer_number_to_maintain = -1;
Reopen({default_cf, one, two, three});
int micros_wait_for_flush = 10000;
PutRandomData(0, 100, 1000);
WaitForFlush(0);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
AssertCountLiveLogFiles(1);
PutRandomData(1, 200, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 0, 0});
AssertCountLiveLogFiles(2);
PutRandomData(2, 1000, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 1, 0});
AssertCountLiveLogFiles(3);
PutRandomData(2, 1000, 1000);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 2, 0});
AssertCountLiveLogFiles(4);
PutRandomData(3, 93, 990);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 2, 1});
AssertCountLiveLogFiles(5);
PutRandomData(3, 88, 990);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 2, 2});
AssertCountLiveLogFiles(6);
PutRandomData(3, 88, 990);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 2, 3});
AssertCountLiveLogFiles(7);
PutRandomData(0, 100, 1000);
WaitForFlush(0);
AssertNumberOfImmutableMemtables({0, 1, 2, 3});
AssertCountLiveLogFiles(8);
PutRandomData(2, 100, 10000);
WaitForFlush(2);
AssertNumberOfImmutableMemtables({0, 1, 0, 3});
AssertCountLiveLogFiles(9);
PutRandomData(3, 88, 990);
WaitForFlush(3);
AssertNumberOfImmutableMemtables({0, 1, 0, 0});
AssertCountLiveLogFiles(10);
PutRandomData(3, 88, 990);
env_->SleepForMicroseconds(micros_wait_for_flush);
AssertNumberOfImmutableMemtables({0, 1, 0, 1});
AssertCountLiveLogFiles(11);
PutRandomData(1, 200, 1000);
WaitForFlush(1);
AssertNumberOfImmutableMemtables({0, 0, 0, 1});
AssertCountLiveLogFiles(5);
PutRandomData(3, 88 * 3, 990);
WaitForFlush(3);
PutRandomData(3, 88 * 4, 990);
WaitForFlush(3);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
AssertCountLiveLogFiles(12);
PutRandomData(0, 100, 1000);
WaitForFlush(0);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
AssertCountLiveLogFiles(12);
PutRandomData(2, 3 * 1000, 1000);
WaitForFlush(2);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
AssertCountLiveLogFiles(12);
PutRandomData(1, 2*200, 1000);
WaitForFlush(1);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
AssertCountLiveLogFiles(7);
Close();
}
#ifndef ROCKSDB_LITE // Cuckoo is not supported in lite
TEST_F(ColumnFamilyTest, MemtableNotSupportSnapshot) {
Open();
auto* s1 = dbfull()->GetSnapshot();
ASSERT_TRUE(s1 != nullptr);
dbfull()->ReleaseSnapshot(s1);
// Add a column family that doesn't support snapshot
ColumnFamilyOptions first;
first.memtable_factory.reset(NewHashCuckooRepFactory(1024 * 1024));
CreateColumnFamilies({"first"}, {first});
auto* s2 = dbfull()->GetSnapshot();
ASSERT_TRUE(s2 == nullptr);
// Add a column family that supports snapshot. Snapshot stays not supported.
ColumnFamilyOptions second;
CreateColumnFamilies({"second"}, {second});
auto* s3 = dbfull()->GetSnapshot();
ASSERT_TRUE(s3 == nullptr);
Close();
}
#endif // !ROCKSDB_LITE
TEST_F(ColumnFamilyTest, DifferentMergeOperators) {
Open();
CreateColumnFamilies({"first", "second"});
ColumnFamilyOptions default_cf, first, second;
first.merge_operator = MergeOperators::CreateUInt64AddOperator();
second.merge_operator = MergeOperators::CreateStringAppendOperator();
Reopen({default_cf, first, second});
std::string one, two, three;
PutFixed64(&one, 1);
PutFixed64(&two, 2);
PutFixed64(&three, 3);
ASSERT_OK(Put(0, "foo", two));
ASSERT_OK(Put(0, "foo", one));
ASSERT_TRUE(Merge(0, "foo", two).IsNotSupported());
ASSERT_EQ(Get(0, "foo"), one);
ASSERT_OK(Put(1, "foo", two));
ASSERT_OK(Put(1, "foo", one));
ASSERT_OK(Merge(1, "foo", two));
ASSERT_EQ(Get(1, "foo"), three);
ASSERT_OK(Put(2, "foo", two));
ASSERT_OK(Put(2, "foo", one));
ASSERT_OK(Merge(2, "foo", two));
ASSERT_EQ(Get(2, "foo"), one + "," + two);
Close();
}
TEST_F(ColumnFamilyTest, DifferentCompactionStyles) {
Open();
CreateColumnFamilies({"one", "two"});
ColumnFamilyOptions default_cf, one, two;
db_options_.max_open_files = 20; // only 10 files in file cache
db_options_.disableDataSync = true;
default_cf.compaction_style = kCompactionStyleLevel;
default_cf.num_levels = 3;
default_cf.write_buffer_size = 64 << 10; // 64KB
default_cf.target_file_size_base = 30 << 10;
default_cf.source_compaction_factor = 100;
BlockBasedTableOptions table_options;
table_options.no_block_cache = true;
default_cf.table_factory.reset(NewBlockBasedTableFactory(table_options));
one.compaction_style = kCompactionStyleUniversal;
one.num_levels = 1;
// trigger compaction if there are >= 4 files
one.level0_file_num_compaction_trigger = 4;
one.write_buffer_size = 120000;
two.compaction_style = kCompactionStyleLevel;
two.num_levels = 4;
two.level0_file_num_compaction_trigger = 3;
two.write_buffer_size = 100000;
Reopen({default_cf, one, two});
// SETUP column family "one" -- universal style
for (int i = 0; i < one.level0_file_num_compaction_trigger - 1; ++i) {
PutRandomData(1, 10, 12000);
PutRandomData(1, 1, 10);
WaitForFlush(1);
AssertFilesPerLevel(ToString(i + 1), 1);
}
// SETUP column family "two" -- level style with 4 levels
for (int i = 0; i < two.level0_file_num_compaction_trigger - 1; ++i) {
PutRandomData(2, 10, 12000);
PutRandomData(2, 1, 10);
WaitForFlush(2);
AssertFilesPerLevel(ToString(i + 1), 2);
}
// TRIGGER compaction "one"
PutRandomData(1, 10, 12000);
PutRandomData(1, 1, 10);
// TRIGGER compaction "two"
PutRandomData(2, 10, 12000);
PutRandomData(2, 1, 10);
// WAIT for compactions
WaitForCompaction();
// VERIFY compaction "one"
AssertFilesPerLevel("1", 1);
// VERIFY compaction "two"
AssertFilesPerLevel("0,1", 2);
CompactAll(2);
AssertFilesPerLevel("0,1", 2);
Close();
}
#ifndef ROCKSDB_LITE // Tailing interator not supported
namespace {
std::string IterStatus(Iterator* iter) {
std::string result;
if (iter->Valid()) {
result = iter->key().ToString() + "->" + iter->value().ToString();
} else {
result = "(invalid)";
}
return result;
}
} // anonymous namespace
TEST_F(ColumnFamilyTest, NewIteratorsTest) {
// iter == 0 -- no tailing
// iter == 2 -- tailing
for (int iter = 0; iter < 2; ++iter) {
Open();
CreateColumnFamiliesAndReopen({"one", "two"});
ASSERT_OK(Put(0, "a", "b"));
ASSERT_OK(Put(1, "b", "a"));
ASSERT_OK(Put(2, "c", "m"));
ASSERT_OK(Put(2, "v", "t"));
std::vector<Iterator*> iterators;
ReadOptions options;
options.tailing = (iter == 1);
ASSERT_OK(db_->NewIterators(options, handles_, &iterators));
for (auto it : iterators) {
it->SeekToFirst();
}
ASSERT_EQ(IterStatus(iterators[0]), "a->b");
ASSERT_EQ(IterStatus(iterators[1]), "b->a");
ASSERT_EQ(IterStatus(iterators[2]), "c->m");
ASSERT_OK(Put(1, "x", "x"));
for (auto it : iterators) {
it->Next();
}
ASSERT_EQ(IterStatus(iterators[0]), "(invalid)");
if (iter == 0) {
// no tailing
ASSERT_EQ(IterStatus(iterators[1]), "(invalid)");
} else {
// tailing
ASSERT_EQ(IterStatus(iterators[1]), "x->x");
}
ASSERT_EQ(IterStatus(iterators[2]), "v->t");
for (auto it : iterators) {
delete it;
}
Destroy();
}
}
#endif // !ROCKSDB_LITE
#ifndef ROCKSDB_LITE // ReadOnlyDB is not supported
TEST_F(ColumnFamilyTest, ReadOnlyDBTest) {
Open();
CreateColumnFamiliesAndReopen({"one", "two", "three", "four"});
ASSERT_OK(Put(0, "a", "b"));
ASSERT_OK(Put(1, "foo", "bla"));
ASSERT_OK(Put(2, "foo", "blabla"));
ASSERT_OK(Put(3, "foo", "blablabla"));
ASSERT_OK(Put(4, "foo", "blablablabla"));
DropColumnFamilies({2});
Close();
// open only a subset of column families
AssertOpenReadOnly({"default", "one", "four"});
ASSERT_EQ("NOT_FOUND", Get(0, "foo"));
ASSERT_EQ("bla", Get(1, "foo"));
ASSERT_EQ("blablablabla", Get(2, "foo"));
// test newiterators
{
std::vector<Iterator*> iterators;
ASSERT_OK(db_->NewIterators(ReadOptions(), handles_, &iterators));
for (auto it : iterators) {
it->SeekToFirst();
}
ASSERT_EQ(IterStatus(iterators[0]), "a->b");
ASSERT_EQ(IterStatus(iterators[1]), "foo->bla");
ASSERT_EQ(IterStatus(iterators[2]), "foo->blablablabla");
for (auto it : iterators) {
it->Next();
}
ASSERT_EQ(IterStatus(iterators[0]), "(invalid)");
ASSERT_EQ(IterStatus(iterators[1]), "(invalid)");
ASSERT_EQ(IterStatus(iterators[2]), "(invalid)");
for (auto it : iterators) {
delete it;
}
}
Close();
// can't open dropped column family
Status s = OpenReadOnly({"default", "one", "two"});
ASSERT_TRUE(!s.ok());
// Can't open without specifying default column family
s = OpenReadOnly({"one", "four"});
ASSERT_TRUE(!s.ok());
}
#endif // !ROCKSDB_LITE
TEST_F(ColumnFamilyTest, DontRollEmptyLogs) {
Open();
CreateColumnFamiliesAndReopen({"one", "two", "three", "four"});
for (size_t i = 0; i < handles_.size(); ++i) {
PutRandomData(static_cast<int>(i), 10, 100);
}
int num_writable_file_start = env_->GetNumberOfNewWritableFileCalls();
// this will trigger the flushes
for (int i = 0; i <= 4; ++i) {
ASSERT_OK(Flush(i));
}
for (int i = 0; i < 4; ++i) {
WaitForFlush(i);
}
int total_new_writable_files =
env_->GetNumberOfNewWritableFileCalls() - num_writable_file_start;
ASSERT_EQ(static_cast<size_t>(total_new_writable_files), handles_.size() + 1);
Close();
}
TEST_F(ColumnFamilyTest, FlushStaleColumnFamilies) {
Open();
CreateColumnFamilies({"one", "two"});
ColumnFamilyOptions default_cf, one, two;
default_cf.write_buffer_size = 100000; // small write buffer size
default_cf.arena_block_size = 4096;
default_cf.disable_auto_compactions = true;
one.disable_auto_compactions = true;
two.disable_auto_compactions = true;
db_options_.max_total_wal_size = 210000;
Reopen({default_cf, one, two});
PutRandomData(2, 1, 10); // 10 bytes
for (int i = 0; i < 2; ++i) {
PutRandomData(0, 100, 1000); // flush
WaitForFlush(0);
AssertCountLiveFiles(i + 1);
}
// third flush. now, CF [two] should be detected as stale and flushed
// column family 1 should not be flushed since it's empty
PutRandomData(0, 100, 1000); // flush
WaitForFlush(0);
WaitForFlush(2);
// 3 files for default column families, 1 file for column family [two], zero
// files for column family [one], because it's empty
AssertCountLiveFiles(4);
Close();
}
TEST_F(ColumnFamilyTest, CreateMissingColumnFamilies) {
Status s = TryOpen({"one", "two"});
ASSERT_TRUE(!s.ok());
db_options_.create_missing_column_families = true;
s = TryOpen({"default", "one", "two"});
ASSERT_TRUE(s.ok());
Close();
}
TEST_F(ColumnFamilyTest, SanitizeOptions) {
DBOptions db_options;
for (int s = kCompactionStyleLevel; s <= kCompactionStyleUniversal; ++s) {
for (int l = 0; l <= 2; l++) {
for (int i = 1; i <= 3; i++) {
for (int j = 1; j <= 3; j++) {
for (int k = 1; k <= 3; k++) {
ColumnFamilyOptions original;
original.compaction_style = static_cast<CompactionStyle>(s);
original.num_levels = l;
original.level0_stop_writes_trigger = i;
original.level0_slowdown_writes_trigger = j;
original.level0_file_num_compaction_trigger = k;
original.write_buffer_size =
l * 4 * 1024 * 1024 + i * 1024 * 1024 + j * 1024 + k;
ColumnFamilyOptions result =
SanitizeOptions(db_options, nullptr, original);
ASSERT_TRUE(result.level0_stop_writes_trigger >=
result.level0_slowdown_writes_trigger);
ASSERT_TRUE(result.level0_slowdown_writes_trigger >=
result.level0_file_num_compaction_trigger);
ASSERT_TRUE(result.level0_file_num_compaction_trigger ==
original.level0_file_num_compaction_trigger);
if (s == kCompactionStyleLevel) {
ASSERT_GE(result.num_levels, 2);
} else {
ASSERT_GE(result.num_levels, 1);
if (original.num_levels >= 1) {
ASSERT_EQ(result.num_levels, original.num_levels);
}
}
// Make sure Sanitize options sets arena_block_size to 1/8 of
// the write_buffer_size, rounded up to a multiple of 4k.
size_t expected_arena_block_size =
l * 4 * 1024 * 1024 / 8 + i * 1024 * 1024 / 8;
if (j + k != 0) {
// not a multiple of 4k, round up 4k
expected_arena_block_size += 4 * 1024;
}
ASSERT_EQ(expected_arena_block_size, result.arena_block_size);
}
}
}
}
}
}
TEST_F(ColumnFamilyTest, ReadDroppedColumnFamily) {
// iter 0 -- drop CF, don't reopen
// iter 1 -- delete CF, reopen
for (int iter = 0; iter < 2; ++iter) {
db_options_.create_missing_column_families = true;
db_options_.max_open_files = 20;
// delete obsolete files always
db_options_.delete_obsolete_files_period_micros = 0;
Open({"default", "one", "two"});
ColumnFamilyOptions options;
options.level0_file_num_compaction_trigger = 100;
options.level0_slowdown_writes_trigger = 200;
options.level0_stop_writes_trigger = 200;
options.write_buffer_size = 100000; // small write buffer size
Reopen({options, options, options});
// 1MB should create ~10 files for each CF
int kKeysNum = 10000;
PutRandomData(0, kKeysNum, 100);
PutRandomData(1, kKeysNum, 100);
PutRandomData(2, kKeysNum, 100);
if (iter == 0) {
// Drop CF two
ASSERT_OK(db_->DropColumnFamily(handles_[2]));
} else {
// delete CF two
delete handles_[2];
handles_[2] = nullptr;
}
// Add bunch more data to other CFs
PutRandomData(0, kKeysNum, 100);
PutRandomData(1, kKeysNum, 100);
if (iter == 1) {
Reopen();
}
// Since we didn't delete CF handle, RocksDB's contract guarantees that
// we're still able to read dropped CF
for (int i = 0; i < 3; ++i) {
std::unique_ptr<Iterator> iterator(
db_->NewIterator(ReadOptions(), handles_[i]));
int count = 0;
for (iterator->SeekToFirst(); iterator->Valid(); iterator->Next()) {
ASSERT_OK(iterator->status());
++count;
}
ASSERT_OK(iterator->status());
ASSERT_EQ(count, kKeysNum * ((i == 2) ? 1 : 2));
}
Close();
Destroy();
}
}
TEST_F(ColumnFamilyTest, FlushAndDropRaceCondition) {
db_options_.create_missing_column_families = true;
Open({"default", "one"});
ColumnFamilyOptions options;
options.level0_file_num_compaction_trigger = 100;
options.level0_slowdown_writes_trigger = 200;
options.level0_stop_writes_trigger = 200;
options.max_write_buffer_number = 20;
options.write_buffer_size = 100000; // small write buffer size
Reopen({options, options});
rocksdb::SyncPoint::GetInstance()->LoadDependency(
{{"VersionSet::LogAndApply::ColumnFamilyDrop:1"
"FlushJob::InstallResults"},
{"FlushJob::InstallResults",
"VersionSet::LogAndApply::ColumnFamilyDrop:2", }});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
test::SleepingBackgroundTask sleeping_task;
env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &sleeping_task,
Env::Priority::HIGH);
// 1MB should create ~10 files for each CF
int kKeysNum = 10000;
PutRandomData(1, kKeysNum, 100);
std::vector<std::thread> threads;
threads.emplace_back([&] { ASSERT_OK(db_->DropColumnFamily(handles_[1])); });
sleeping_task.WakeUp();
sleeping_task.WaitUntilDone();
sleeping_task.Reset();
// now we sleep again. this is just so we're certain that flush job finished
env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &sleeping_task,
Env::Priority::HIGH);
sleeping_task.WakeUp();
sleeping_task.WaitUntilDone();
{
// Since we didn't delete CF handle, RocksDB's contract guarantees that
// we're still able to read dropped CF
std::unique_ptr<Iterator> iterator(
db_->NewIterator(ReadOptions(), handles_[1]));
int count = 0;
for (iterator->SeekToFirst(); iterator->Valid(); iterator->Next()) {
ASSERT_OK(iterator->status());
++count;
}
ASSERT_OK(iterator->status());
ASSERT_EQ(count, kKeysNum);
}
for (auto& t : threads) {
t.join();
}
Close();
Destroy();
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
#ifndef ROCKSDB_LITE
// skipped as persisting options is not supported in ROCKSDB_LITE
namespace {
std::atomic<int> test_stage(0);
const int kMainThreadStartPersistingOptionsFile = 1;
const int kChildThreadFinishDroppingColumnFamily = 2;
const int kChildThreadWaitingMainThreadPersistOptions = 3;
void DropSingleColumnFamily(ColumnFamilyTest* cf_test, int cf_id,
std::vector<Comparator*>* comparators) {
while (test_stage < kMainThreadStartPersistingOptionsFile) {
Env::Default()->SleepForMicroseconds(100);
}
cf_test->DropColumnFamilies({cf_id});
if ((*comparators)[cf_id]) {
delete (*comparators)[cf_id];
(*comparators)[cf_id] = nullptr;
}
test_stage = kChildThreadFinishDroppingColumnFamily;
}
} // namespace
TEST_F(ColumnFamilyTest, CreateAndDropRace) {
const int kCfCount = 5;
std::vector<ColumnFamilyOptions> cf_opts;
std::vector<Comparator*> comparators;
for (int i = 0; i < kCfCount; ++i) {
cf_opts.emplace_back();
comparators.push_back(new test::SimpleSuffixReverseComparator());
cf_opts.back().comparator = comparators.back();
}
db_options_.create_if_missing = true;
db_options_.create_missing_column_families = true;
auto main_thread_id = std::this_thread::get_id();
rocksdb::SyncPoint::GetInstance()->SetCallBack("PersistRocksDBOptions:start",
[&](void* arg) {
auto current_thread_id = std::this_thread::get_id();
// If it's the main thread hitting this sync-point, then it
// will be blocked until some other thread update the test_stage.
if (main_thread_id == current_thread_id) {
test_stage = kMainThreadStartPersistingOptionsFile;
while (test_stage < kChildThreadFinishDroppingColumnFamily) {
Env::Default()->SleepForMicroseconds(100);
}
}
});
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"WriteThread::EnterUnbatched:Wait", [&](void* arg) {
// This means a thread doing DropColumnFamily() is waiting for
// other thread to finish persisting options.
// In such case, we update the test_stage to unblock the main thread.
test_stage = kChildThreadWaitingMainThreadPersistOptions;
// Note that based on the test setting, this must not be the
// main thread.
ASSERT_NE(main_thread_id, std::this_thread::get_id());
});
// Create a database with four column families
Open({"default", "one", "two", "three"},
{cf_opts[0], cf_opts[1], cf_opts[2], cf_opts[3]});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
// Start a thread that will drop the first column family
// and its comparator
std::thread drop_cf_thread(DropSingleColumnFamily, this, 1, &comparators);
DropColumnFamilies({2});
drop_cf_thread.join();
Close();
Destroy();
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
for (auto* comparator : comparators) {
if (comparator) {
delete comparator;
}
}
}
#endif // !ROCKSDB_LITE
} // namespace rocksdb
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}