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rocksdb/db/column_family_test.cc
Igor Canadi a84234a61b Ignore missing column families 
Summary:
Before this diff, whenever we Write to non-existing column family, Write() would fail.

This diff adds an option to not fail a Write() when WriteBatch points to non-existing column family. MongoDB said this would be useful for them, since they might have a transaction updating an index that was dropped by another thread. This way, they don't have to worry about checking if all indexes are alive on every write. They don't care if they lose writes to dropped index.

Test Plan: added a small unit test

Reviewers: sdong, yhchiang, ljin

Reviewed By: ljin

Subscribers: leveldb

Differential Revision: https://reviews.facebook.net/D22143
2014-09-02 13:29:05 -07:00

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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 "db/db_impl.h"
#include "rocksdb/env.h"
#include "rocksdb/db.h"
#include "util/testharness.h"
#include "util/testutil.h"
#include "util/coding.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) {
++num_new_writable_file_;
return EnvWrapper::NewWritableFile(f, r, soptions);
}
private:
int num_new_writable_file_;
};
class ColumnFamilyTest {
public:
ColumnFamilyTest() : rnd_(139) {
env_ = new EnvCounter(Env::Default());
dbname_ = test::TmpDir() + "/column_family_test";
db_options_.create_if_missing = true;
db_options_.env = env_;
DestroyDB(dbname_, Options(db_options_, column_family_options_));
}
~ColumnFamilyTest() {
delete env_;
}
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_);
}
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_);
}
void AssertOpenReadOnly(std::vector<std::string> cf,
std::vector<ColumnFamilyOptions> options = {}) {
ASSERT_OK(OpenReadOnly(cf, options));
}
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]));
}
void WaitForCompaction() { ASSERT_OK(dbfull()->TEST_WaitForCompact()); }
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(handles_[cf], nullptr, nullptr));
}
void Compact(int cf, const Slice& start, const Slice& limit) {
ASSERT_OK(db_->CompactRange(handles_[cf], &start, &limit));
}
int NumTableFilesAtLevel(int level, int cf) {
return GetProperty(cf,
"rocksdb.num-files-at-level" + std::to_string(level));
}
// 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 = result.size();
}
}
result.resize(last_non_zero_offset);
return result;
}
int CountLiveFiles() {
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 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 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;
EnvCounter* env_;
Random rnd_;
};
TEST(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(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(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);
DropColumnFamilies({1});
// make sure that all files are deleted when we drop the column family
ASSERT_EQ(CountLiveFiles(), 0);
Destroy();
}
}
TEST(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(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) {
db_options_.max_total_wal_size = std::numeric_limits<uint64_t>::max();
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)
// []
ASSERT_EQ(CountLiveLogFiles(), 0);
PutRandomData(0, 1, 100);
// [0]
PutRandomData(1, 1, 100);
// [0, 1]
PutRandomData(1, 1000, 100);
WaitForFlush(1);
// [0, (1)] [1]
ASSERT_EQ(CountLiveLogFiles(), 2);
PutRandomData(0, 1, 100);
// [0, (1)] [0, 1]
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]
ASSERT_EQ(CountLiveLogFiles(), 3);
PutRandomData(2, 1000, 100);
WaitForFlush(2);
// [0, (1)] [0, 1, (2)] [(2)] [2]
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]
ASSERT_EQ(CountLiveLogFiles(), 4);
PutRandomData(1, 1000, 100);
WaitForFlush(1);
// [0, (1)] [0, (1), (2)] [(2)] [(1), 2, 3] [1]
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]
ASSERT_EQ(CountLiveLogFiles(), 3);
PutRandomData(0, 1000, 100);
WaitForFlush(0);
// [(1), 2, 3] [1, (0)], [(0)] [0]
ASSERT_EQ(CountLiveLogFiles(), 4);
PutRandomData(1, 1000, 100);
WaitForFlush(1);
// [(1), 2, 3] [(1), (0)] [(0)] [0, (1)] [1]
ASSERT_EQ(CountLiveLogFiles(), 5);
PutRandomData(2, 1000, 100);
WaitForFlush(2);
// [(1), (2), 3] [(1), (0)] [(0)] [0, (1)] [1, (2)], [2]
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]
ASSERT_EQ(CountLiveLogFiles(), 4);
Close();
}
// Makes sure that obsolete log files get deleted
TEST(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.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 = 10000;
PutRandomData(0, 100, 1000);
WaitForFlush(0);
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);
WaitForFlush(0);
AssertNumberOfImmutableMemtables({0, 1, 2, 3});
ASSERT_EQ(CountLiveLogFiles(), 8);
PutRandomData(2, 100, 10000);
WaitForFlush(2);
AssertNumberOfImmutableMemtables({0, 1, 0, 3});
ASSERT_EQ(CountLiveLogFiles(), 9);
PutRandomData(3, 90, 1000);
WaitForFlush(3);
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);
WaitForFlush(1);
AssertNumberOfImmutableMemtables({0, 0, 0, 1});
ASSERT_EQ(CountLiveLogFiles(), 5);
PutRandomData(3, 90*6, 1000);
WaitForFlush(3);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
ASSERT_EQ(CountLiveLogFiles(), 12);
PutRandomData(0, 100, 1000);
WaitForFlush(0);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
ASSERT_EQ(CountLiveLogFiles(), 12);
PutRandomData(2, 3*100, 10000);
WaitForFlush(2);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
ASSERT_EQ(CountLiveLogFiles(), 12);
PutRandomData(1, 2*200, 1000);
WaitForFlush(1);
AssertNumberOfImmutableMemtables({0, 0, 0, 0});
ASSERT_EQ(CountLiveLogFiles(), 7);
Close();
}
TEST(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(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;
// trigger compaction if there are >= 4 files
one.level0_file_num_compaction_trigger = 4;
one.write_buffer_size = 100000;
two.compaction_style = kCompactionStyleLevel;
two.num_levels = 4;
two.max_mem_compaction_level = 0;
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, 11, 10000);
WaitForFlush(1);
ASSERT_EQ(std::to_string(i + 1), FilesPerLevel(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, 15, 10000);
WaitForFlush(2);
ASSERT_EQ(std::to_string(i + 1), FilesPerLevel(2));
}
// TRIGGER compaction "one"
PutRandomData(1, 12, 10000);
// TRIGGER compaction "two"
PutRandomData(2, 10, 10000);
// WAIT for compactions
WaitForCompaction();
// VERIFY compaction "one"
ASSERT_EQ("1", FilesPerLevel(1));
// VERIFY compaction "two"
ASSERT_EQ("0,1", FilesPerLevel(2));
CompactAll(2);
ASSERT_EQ("0,1", FilesPerLevel(2));
Close();
}
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(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();
}
}
TEST(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());
}
TEST(ColumnFamilyTest, DontRollEmptyLogs) {
Open();
CreateColumnFamiliesAndReopen({"one", "two", "three", "four"});
for (size_t i = 0; i < handles_.size(); ++i) {
PutRandomData(i, 10, 100);
}
int num_writable_file_start = env_->GetNumberOfNewWritableFileCalls();
// this will trigger the flushes
for (size_t i = 0; i <= 4; ++i) {
ASSERT_OK(Flush(i));
}
for (int i = 0; i < 4; ++i) {
dbfull()->TEST_WaitForFlushMemTable(handles_[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(ColumnFamilyTest, FlushStaleColumnFamilies) {
Open();
CreateColumnFamilies({"one", "two"});
ColumnFamilyOptions default_cf, one, two;
default_cf.write_buffer_size = 100000; // small write buffer size
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);
ASSERT_EQ(i + 1, CountLiveFiles());
}
// 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
ASSERT_EQ(4, CountLiveFiles());
Close();
}
TEST(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();
}
} // namespace rocksdb
int main(int argc, char** argv) {
return rocksdb::test::RunAllTests();
}
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