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db_secondary_test.cc
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root 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/db_impl_secondary.h"
#include "db/db_test_util.h"
#include "db/db_with_timestamp_test_util.h"
#include "port/stack_trace.h"
#include "rocksdb/utilities/transaction_db.h"
#include "test_util/sync_point.h"
#include "test_util/testutil.h"
#include "utilities/fault_injection_env.h"
namespace ROCKSDB_NAMESPACE {
#ifndef ROCKSDB_LITE
class DBSecondaryTestBase : public DBBasicTestWithTimestampBase {
public:
explicit DBSecondaryTestBase(const std::string& dbname)
: DBBasicTestWithTimestampBase(dbname),
secondary_path_(),
handles_secondary_(),
db_secondary_(nullptr) {
secondary_path_ =
test::PerThreadDBPath(env_, "/db_secondary_test_secondary");
}
~DBSecondaryTestBase() override {
CloseSecondary();
if (getenv("KEEP_DB") != nullptr) {
fprintf(stdout, "Secondary DB is still at %s\n", secondary_path_.c_str());
} else {
Options options;
options.env = env_;
EXPECT_OK(DestroyDB(secondary_path_, options));
}
}
protected:
Status ReopenAsSecondary(const Options& options) {
return DB::OpenAsSecondary(options, dbname_, secondary_path_, &db_);
}
void OpenSecondary(const Options& options);
Status TryOpenSecondary(const Options& options);
void OpenSecondaryWithColumnFamilies(
const std::vector<std::string>& column_families, const Options& options);
void CloseSecondary() {
for (auto h : handles_secondary_) {
ASSERT_OK(db_secondary_->DestroyColumnFamilyHandle(h));
}
handles_secondary_.clear();
delete db_secondary_;
db_secondary_ = nullptr;
}
DBImplSecondary* db_secondary_full() {
return static_cast<DBImplSecondary*>(db_secondary_);
}
void CheckFileTypeCounts(const std::string& dir, int expected_log,
int expected_sst, int expected_manifest) const;
std::string secondary_path_;
std::vector<ColumnFamilyHandle*> handles_secondary_;
DB* db_secondary_;
};
void DBSecondaryTestBase::OpenSecondary(const Options& options) {
ASSERT_OK(TryOpenSecondary(options));
}
Status DBSecondaryTestBase::TryOpenSecondary(const Options& options) {
Status s =
DB::OpenAsSecondary(options, dbname_, secondary_path_, &db_secondary_);
return s;
}
void DBSecondaryTestBase::OpenSecondaryWithColumnFamilies(
const std::vector<std::string>& column_families, const Options& options) {
std::vector<ColumnFamilyDescriptor> cf_descs;
cf_descs.emplace_back(kDefaultColumnFamilyName, options);
for (const auto& cf_name : column_families) {
cf_descs.emplace_back(cf_name, options);
}
Status s = DB::OpenAsSecondary(options, dbname_, secondary_path_, cf_descs,
&handles_secondary_, &db_secondary_);
ASSERT_OK(s);
}
void DBSecondaryTestBase::CheckFileTypeCounts(const std::string& dir,
int expected_log,
int expected_sst,
int expected_manifest) const {
std::vector<std::string> filenames;
ASSERT_OK(env_->GetChildren(dir, &filenames));
int log_cnt = 0, sst_cnt = 0, manifest_cnt = 0;
for (auto file : filenames) {
uint64_t number;
FileType type;
if (ParseFileName(file, &number, &type)) {
log_cnt += (type == kWalFile);
sst_cnt += (type == kTableFile);
manifest_cnt += (type == kDescriptorFile);
}
}
ASSERT_EQ(expected_log, log_cnt);
ASSERT_EQ(expected_sst, sst_cnt);
ASSERT_EQ(expected_manifest, manifest_cnt);
}
class DBSecondaryTest : public DBSecondaryTestBase {
public:
explicit DBSecondaryTest() : DBSecondaryTestBase("db_secondary_test") {}
};
TEST_F(DBSecondaryTest, FailOpenIfLoggerCreationFail) {
Options options = GetDefaultOptions();
options.create_if_missing = true;
Reopen(options);
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->SetCallBack(
"rocksdb::CreateLoggerFromOptions:AfterGetPath", [&](void* arg) {
auto* s = reinterpret_cast<Status*>(arg);
assert(s);
*s = Status::IOError("Injected");
});
SyncPoint::GetInstance()->EnableProcessing();
options.max_open_files = -1;
Status s = TryOpenSecondary(options);
ASSERT_EQ(nullptr, options.info_log);
ASSERT_TRUE(s.IsIOError());
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
}
TEST_F(DBSecondaryTest, NonExistingDb) {
Destroy(last_options_);
Options options = GetDefaultOptions();
options.env = env_;
options.max_open_files = -1;
const std::string dbname = "/doesnt/exist";
Status s =
DB::OpenAsSecondary(options, dbname, secondary_path_, &db_secondary_);
ASSERT_TRUE(s.IsIOError());
}
TEST_F(DBSecondaryTest, ReopenAsSecondary) {
Options options;
options.env = env_;
Reopen(options);
ASSERT_OK(Put("foo", "foo_value"));
ASSERT_OK(Put("bar", "bar_value"));
ASSERT_OK(dbfull()->Flush(FlushOptions()));
Close();
ASSERT_OK(ReopenAsSecondary(options));
ASSERT_EQ("foo_value", Get("foo"));
ASSERT_EQ("bar_value", Get("bar"));
ReadOptions ropts;
ropts.verify_checksums = true;
auto db1 = static_cast<DBImplSecondary*>(db_);
ASSERT_NE(nullptr, db1);
Iterator* iter = db1->NewIterator(ropts);
ASSERT_NE(nullptr, iter);
size_t count = 0;
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
if (0 == count) {
ASSERT_EQ("bar", iter->key().ToString());
ASSERT_EQ("bar_value", iter->value().ToString());
} else if (1 == count) {
ASSERT_EQ("foo", iter->key().ToString());
ASSERT_EQ("foo_value", iter->value().ToString());
}
++count;
}
delete iter;
ASSERT_EQ(2, count);
}
TEST_F(DBSecondaryTest, SimpleInternalCompaction) {
Options options;
options.env = env_;
Reopen(options);
for (int i = 0; i < 3; ++i) {
ASSERT_OK(Put("foo", "foo_value" + std::to_string(i)));
ASSERT_OK(Put("bar", "bar_value" + std::to_string(i)));
ASSERT_OK(Flush());
}
CompactionServiceInput input;
ColumnFamilyMetaData meta;
db_->GetColumnFamilyMetaData(&meta);
for (auto& file : meta.levels[0].files) {
ASSERT_EQ(0, meta.levels[0].level);
input.input_files.push_back(file.name);
}
ASSERT_EQ(input.input_files.size(), 3);
input.output_level = 1;
ASSERT_OK(db_->GetDbIdentity(input.db_id));
Close();
options.max_open_files = -1;
OpenSecondary(options);
auto cfh = db_secondary_->DefaultColumnFamily();
CompactionServiceResult result;
ASSERT_OK(db_secondary_full()->TEST_CompactWithoutInstallation(
OpenAndCompactOptions(), cfh, input, &result));
ASSERT_EQ(result.output_files.size(), 1);
InternalKey smallest, largest;
smallest.DecodeFrom(result.output_files[0].smallest_internal_key);
largest.DecodeFrom(result.output_files[0].largest_internal_key);
ASSERT_EQ(smallest.user_key().ToString(), "bar");
ASSERT_EQ(largest.user_key().ToString(), "foo");
ASSERT_EQ(result.output_level, 1);
ASSERT_EQ(result.output_path, this->secondary_path_);
ASSERT_EQ(result.num_output_records, 2);
ASSERT_GT(result.bytes_written, 0);
ASSERT_OK(result.status);
}
TEST_F(DBSecondaryTest, InternalCompactionMultiLevels) {
Options options;
options.env = env_;
options.disable_auto_compactions = true;
Reopen(options);
const int kRangeL2 = 10;
const int kRangeL1 = 30;
for (int i = 0; i < 10; i++) {
ASSERT_OK(Put(Key(i * kRangeL2), "value" + std::to_string(i)));
ASSERT_OK(Put(Key((i + 1) * kRangeL2 - 1), "value" + std::to_string(i)));
ASSERT_OK(Flush());
}
MoveFilesToLevel(2);
for (int i = 0; i < 5; i++) {
ASSERT_OK(Put(Key(i * kRangeL1), "value" + std::to_string(i)));
ASSERT_OK(Put(Key((i + 1) * kRangeL1 - 1), "value" + std::to_string(i)));
ASSERT_OK(Flush());
}
MoveFilesToLevel(1);
for (int i = 0; i < 4; i++) {
ASSERT_OK(Put(Key(i * 30), "value" + std::to_string(i)));
ASSERT_OK(Put(Key(i * 30 + 50), "value" + std::to_string(i)));
ASSERT_OK(Flush());
}
ColumnFamilyMetaData meta;
db_->GetColumnFamilyMetaData(&meta);
// pick 2 files on level 0 for compaction, which has 3 overlap files on L1
CompactionServiceInput input1;
input1.input_files.push_back(meta.levels[0].files[2].name);
input1.input_files.push_back(meta.levels[0].files[3].name);
input1.input_files.push_back(meta.levels[1].files[0].name);
input1.input_files.push_back(meta.levels[1].files[1].name);
input1.input_files.push_back(meta.levels[1].files[2].name);
input1.output_level = 1;
ASSERT_OK(db_->GetDbIdentity(input1.db_id));
options.max_open_files = -1;
Close();
OpenSecondary(options);
auto cfh = db_secondary_->DefaultColumnFamily();
CompactionServiceResult result;
ASSERT_OK(db_secondary_full()->TEST_CompactWithoutInstallation(
OpenAndCompactOptions(), cfh, input1, &result));
ASSERT_OK(result.status);
// pick 2 files on level 1 for compaction, which has 6 overlap files on L2
CompactionServiceInput input2;
input2.input_files.push_back(meta.levels[1].files[1].name);
input2.input_files.push_back(meta.levels[1].files[2].name);
for (int i = 3; i < 9; i++) {
input2.input_files.push_back(meta.levels[2].files[i].name);
}
input2.output_level = 2;
input2.db_id = input1.db_id;
ASSERT_OK(db_secondary_full()->TEST_CompactWithoutInstallation(
OpenAndCompactOptions(), cfh, input2, &result));
ASSERT_OK(result.status);
CloseSecondary();
// delete all l2 files, without update manifest
for (auto& file : meta.levels[2].files) {
ASSERT_OK(env_->DeleteFile(dbname_ + file.name));
}
OpenSecondary(options);
cfh = db_secondary_->DefaultColumnFamily();
Status s = db_secondary_full()->TEST_CompactWithoutInstallation(
OpenAndCompactOptions(), cfh, input2, &result);
ASSERT_TRUE(s.IsInvalidArgument());
ASSERT_OK(result.status);
// TODO: L0 -> L1 compaction should success, currently version is not built
// if files is missing.
// ASSERT_OK(db_secondary_full()->TEST_CompactWithoutInstallation(OpenAndCompactOptions(),
// cfh, input1, &result));
}
TEST_F(DBSecondaryTest, InternalCompactionCompactedFiles) {
Options options;
options.env = env_;
options.level0_file_num_compaction_trigger = 4;
Reopen(options);
for (int i = 0; i < 3; ++i) {
ASSERT_OK(Put("foo", "foo_value" + std::to_string(i)));
ASSERT_OK(Put("bar", "bar_value" + std::to_string(i)));
ASSERT_OK(Flush());
}
CompactionServiceInput input;
ColumnFamilyMetaData meta;
db_->GetColumnFamilyMetaData(&meta);
for (auto& file : meta.levels[0].files) {
ASSERT_EQ(0, meta.levels[0].level);
input.input_files.push_back(file.name);
}
ASSERT_EQ(input.input_files.size(), 3);
input.output_level = 1;
ASSERT_OK(db_->GetDbIdentity(input.db_id));
// trigger compaction to delete the files for secondary instance compaction
ASSERT_OK(Put("foo", "foo_value" + std::to_string(3)));
ASSERT_OK(Put("bar", "bar_value" + std::to_string(3)));
ASSERT_OK(Flush());
ASSERT_OK(dbfull()->TEST_WaitForCompact());
Close();
options.max_open_files = -1;
OpenSecondary(options);
auto cfh = db_secondary_->DefaultColumnFamily();
CompactionServiceResult result;
Status s = db_secondary_full()->TEST_CompactWithoutInstallation(
OpenAndCompactOptions(), cfh, input, &result);
ASSERT_TRUE(s.IsInvalidArgument());
ASSERT_OK(result.status);
}
TEST_F(DBSecondaryTest, InternalCompactionMissingFiles) {
Options options;
options.env = env_;
options.level0_file_num_compaction_trigger = 4;
Reopen(options);
for (int i = 0; i < 3; ++i) {
ASSERT_OK(Put("foo", "foo_value" + std::to_string(i)));
ASSERT_OK(Put("bar", "bar_value" + std::to_string(i)));
ASSERT_OK(Flush());
}
CompactionServiceInput input;
ColumnFamilyMetaData meta;
db_->GetColumnFamilyMetaData(&meta);
for (auto& file : meta.levels[0].files) {
ASSERT_EQ(0, meta.levels[0].level);
input.input_files.push_back(file.name);
}
ASSERT_EQ(input.input_files.size(), 3);
input.output_level = 1;
ASSERT_OK(db_->GetDbIdentity(input.db_id));
Close();
ASSERT_OK(env_->DeleteFile(dbname_ + input.input_files[0]));
options.max_open_files = -1;
OpenSecondary(options);
auto cfh = db_secondary_->DefaultColumnFamily();
CompactionServiceResult result;
Status s = db_secondary_full()->TEST_CompactWithoutInstallation(
OpenAndCompactOptions(), cfh, input, &result);
ASSERT_TRUE(s.IsInvalidArgument());
ASSERT_OK(result.status);
input.input_files.erase(input.input_files.begin());
ASSERT_OK(db_secondary_full()->TEST_CompactWithoutInstallation(
OpenAndCompactOptions(), cfh, input, &result));
ASSERT_OK(result.status);
}
TEST_F(DBSecondaryTest, OpenAsSecondary) {
Options options;
options.env = env_;
options.level0_file_num_compaction_trigger = 4;
Reopen(options);
for (int i = 0; i < 3; ++i) {
ASSERT_OK(Put("foo", "foo_value" + std::to_string(i)));
ASSERT_OK(Put("bar", "bar_value" + std::to_string(i)));
ASSERT_OK(Flush());
}
Options options1;
options1.env = env_;
options1.max_open_files = -1;
OpenSecondary(options1);
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ReadOptions ropts;
ropts.verify_checksums = true;
const auto verify_db_func = [&](const std::string& foo_val,
const std::string& bar_val) {
std::string value;
ASSERT_OK(db_secondary_->Get(ropts, "foo", &value));
ASSERT_EQ(foo_val, value);
ASSERT_OK(db_secondary_->Get(ropts, "bar", &value));
ASSERT_EQ(bar_val, value);
Iterator* iter = db_secondary_->NewIterator(ropts);
ASSERT_NE(nullptr, iter);
iter->Seek("foo");
ASSERT_TRUE(iter->Valid());
ASSERT_EQ("foo", iter->key().ToString());
ASSERT_EQ(foo_val, iter->value().ToString());
iter->Seek("bar");
ASSERT_TRUE(iter->Valid());
ASSERT_EQ("bar", iter->key().ToString());
ASSERT_EQ(bar_val, iter->value().ToString());
size_t count = 0;
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
++count;
}
ASSERT_EQ(2, count);
delete iter;
};
verify_db_func("foo_value2", "bar_value2");
ASSERT_OK(Put("foo", "new_foo_value"));
ASSERT_OK(Put("bar", "new_bar_value"));
ASSERT_OK(Flush());
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
verify_db_func("new_foo_value", "new_bar_value");
}
namespace {
class TraceFileEnv : public EnvWrapper {
public:
explicit TraceFileEnv(Env* _target) : EnvWrapper(_target) {}
static const char* kClassName() { return "TraceFileEnv"; }
const char* Name() const override { return kClassName(); }
Status NewRandomAccessFile(const std::string& f,
std::unique_ptr<RandomAccessFile>* r,
const EnvOptions& env_options) override {
class TracedRandomAccessFile : public RandomAccessFile {
public:
TracedRandomAccessFile(std::unique_ptr<RandomAccessFile>&& target,
std::atomic<int>& counter)
: target_(std::move(target)), files_closed_(counter) {}
~TracedRandomAccessFile() override {
files_closed_.fetch_add(1, std::memory_order_relaxed);
}
Status Read(uint64_t offset, size_t n, Slice* result,
char* scratch) const override {
return target_->Read(offset, n, result, scratch);
}
private:
std::unique_ptr<RandomAccessFile> target_;
std::atomic<int>& files_closed_;
};
Status s = target()->NewRandomAccessFile(f, r, env_options);
if (s.ok()) {
r->reset(new TracedRandomAccessFile(std::move(*r), files_closed_));
}
return s;
}
int files_closed() const {
return files_closed_.load(std::memory_order_relaxed);
}
private:
std::atomic<int> files_closed_{0};
};
} // namespace
TEST_F(DBSecondaryTest, SecondaryCloseFiles) {
Options options;
options.env = env_;
options.max_open_files = 1;
options.disable_auto_compactions = true;
Reopen(options);
Options options1;
std::unique_ptr<Env> traced_env(new TraceFileEnv(env_));
options1.env = traced_env.get();
OpenSecondary(options1);
static const auto verify_db = [&]() {
std::unique_ptr<Iterator> iter1(dbfull()->NewIterator(ReadOptions()));
std::unique_ptr<Iterator> iter2(db_secondary_->NewIterator(ReadOptions()));
for (iter1->SeekToFirst(), iter2->SeekToFirst();
iter1->Valid() && iter2->Valid(); iter1->Next(), iter2->Next()) {
ASSERT_EQ(iter1->key(), iter2->key());
ASSERT_EQ(iter1->value(), iter2->value());
}
ASSERT_FALSE(iter1->Valid());
ASSERT_FALSE(iter2->Valid());
};
ASSERT_OK(Put("a", "value"));
ASSERT_OK(Put("c", "value"));
ASSERT_OK(Flush());
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
verify_db();
ASSERT_OK(Put("b", "value"));
ASSERT_OK(Put("d", "value"));
ASSERT_OK(Flush());
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
verify_db();
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
ASSERT_EQ(2, static_cast<TraceFileEnv*>(traced_env.get())->files_closed());
Status s = db_secondary_->SetDBOptions({{"max_open_files", "-1"}});
ASSERT_TRUE(s.IsNotSupported());
CloseSecondary();
}
TEST_F(DBSecondaryTest, OpenAsSecondaryWALTailing) {
Options options;
options.env = env_;
options.level0_file_num_compaction_trigger = 4;
Reopen(options);
for (int i = 0; i < 3; ++i) {
ASSERT_OK(Put("foo", "foo_value" + std::to_string(i)));
ASSERT_OK(Put("bar", "bar_value" + std::to_string(i)));
}
Options options1;
options1.env = env_;
options1.max_open_files = -1;
OpenSecondary(options1);
ReadOptions ropts;
ropts.verify_checksums = true;
const auto verify_db_func = [&](const std::string& foo_val,
const std::string& bar_val) {
std::string value;
ASSERT_OK(db_secondary_->Get(ropts, "foo", &value));
ASSERT_EQ(foo_val, value);
ASSERT_OK(db_secondary_->Get(ropts, "bar", &value));
ASSERT_EQ(bar_val, value);
Iterator* iter = db_secondary_->NewIterator(ropts);
ASSERT_NE(nullptr, iter);
iter->Seek("foo");
ASSERT_TRUE(iter->Valid());
ASSERT_EQ("foo", iter->key().ToString());
ASSERT_EQ(foo_val, iter->value().ToString());
iter->Seek("bar");
ASSERT_TRUE(iter->Valid());
ASSERT_EQ("bar", iter->key().ToString());
ASSERT_EQ(bar_val, iter->value().ToString());
size_t count = 0;
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
++count;
}
ASSERT_EQ(2, count);
delete iter;
};
verify_db_func("foo_value2", "bar_value2");
ASSERT_OK(Put("foo", "new_foo_value"));
ASSERT_OK(Put("bar", "new_bar_value"));
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
verify_db_func("new_foo_value", "new_bar_value");
ASSERT_OK(Flush());
ASSERT_OK(Put("foo", "new_foo_value_1"));
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
verify_db_func("new_foo_value_1", "new_bar_value");
}
TEST_F(DBSecondaryTest, SecondaryTailingBug_ISSUE_8467) {
Options options;
options.env = env_;
Reopen(options);
for (int i = 0; i < 3; ++i) {
ASSERT_OK(Put("foo", "foo_value" + std::to_string(i)));
ASSERT_OK(Put("bar", "bar_value" + std::to_string(i)));
}
Options options1;
options1.env = env_;
options1.max_open_files = -1;
OpenSecondary(options1);
const auto verify_db = [&](const std::string& foo_val,
const std::string& bar_val) {
std::string value;
ReadOptions ropts;
Status s = db_secondary_->Get(ropts, "foo", &value);
ASSERT_OK(s);
ASSERT_EQ(foo_val, value);
s = db_secondary_->Get(ropts, "bar", &value);
ASSERT_OK(s);
ASSERT_EQ(bar_val, value);
};
for (int i = 0; i < 2; ++i) {
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
verify_db("foo_value2", "bar_value2");
}
}
TEST_F(DBSecondaryTest, RefreshIterator) {
Options options;
options.env = env_;
Reopen(options);
Options options1;
options1.env = env_;
options1.max_open_files = -1;
OpenSecondary(options1);
std::unique_ptr<Iterator> it(db_secondary_->NewIterator(ReadOptions()));
for (int i = 0; i < 3; ++i) {
ASSERT_OK(Put("foo", "foo_value" + std::to_string(i)));
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
if (0 == i) {
it->Seek("foo");
ASSERT_FALSE(it->Valid());
ASSERT_OK(it->status());
ASSERT_OK(it->Refresh());
it->Seek("foo");
ASSERT_OK(it->status());
ASSERT_TRUE(it->Valid());
ASSERT_EQ("foo", it->key());
ASSERT_EQ("foo_value0", it->value());
} else {
it->Seek("foo");
ASSERT_TRUE(it->Valid());
ASSERT_EQ("foo", it->key());
ASSERT_EQ("foo_value" + std::to_string(i - 1), it->value());
ASSERT_OK(it->status());
ASSERT_OK(it->Refresh());
it->Seek("foo");
ASSERT_OK(it->status());
ASSERT_TRUE(it->Valid());
ASSERT_EQ("foo", it->key());
ASSERT_EQ("foo_value" + std::to_string(i), it->value());
}
}
}
TEST_F(DBSecondaryTest, OpenWithNonExistColumnFamily) {
Options options;
options.env = env_;
CreateAndReopenWithCF({"pikachu"}, options);
Options options1;
options1.env = env_;
options1.max_open_files = -1;
std::vector<ColumnFamilyDescriptor> cf_descs;
cf_descs.emplace_back(kDefaultColumnFamilyName, options1);
cf_descs.emplace_back("pikachu", options1);
cf_descs.emplace_back("eevee", options1);
Status s = DB::OpenAsSecondary(options1, dbname_, secondary_path_, cf_descs,
&handles_secondary_, &db_secondary_);
ASSERT_NOK(s);
}
TEST_F(DBSecondaryTest, OpenWithSubsetOfColumnFamilies) {
Options options;
options.env = env_;
CreateAndReopenWithCF({"pikachu"}, options);
Options options1;
options1.env = env_;
options1.max_open_files = -1;
OpenSecondary(options1);
ASSERT_EQ(0, handles_secondary_.size());
ASSERT_NE(nullptr, db_secondary_);
ASSERT_OK(Put(0 /*cf*/, "foo", "foo_value"));
ASSERT_OK(Put(1 /*cf*/, "foo", "foo_value"));
ASSERT_OK(Flush(0 /*cf*/));
ASSERT_OK(Flush(1 /*cf*/));
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
ReadOptions ropts;
ropts.verify_checksums = true;
std::string value;
ASSERT_OK(db_secondary_->Get(ropts, "foo", &value));
ASSERT_EQ("foo_value", value);
}
TEST_F(DBSecondaryTest, SwitchToNewManifestDuringOpen) {
Options options;
options.env = env_;
Reopen(options);
Close();
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->LoadDependency(
{{"ReactiveVersionSet::MaybeSwitchManifest:AfterGetCurrentManifestPath:0",
"VersionSet::ProcessManifestWrites:BeforeNewManifest"},
{"DBImpl::Open:AfterDeleteFiles",
"ReactiveVersionSet::MaybeSwitchManifest:AfterGetCurrentManifestPath:"
"1"}});
SyncPoint::GetInstance()->EnableProcessing();
port::Thread ro_db_thread([&]() {
Options options1;
options1.env = env_;
options1.max_open_files = -1;
Status s = TryOpenSecondary(options1);
ASSERT_TRUE(s.IsTryAgain());
// Try again
OpenSecondary(options1);
CloseSecondary();
});
Reopen(options);
ro_db_thread.join();
}
TEST_F(DBSecondaryTest, MissingTableFileDuringOpen) {
Options options;
options.env = env_;
options.level0_file_num_compaction_trigger = 4;
Reopen(options);
for (int i = 0; i != options.level0_file_num_compaction_trigger; ++i) {
ASSERT_OK(Put("foo", "foo_value" + std::to_string(i)));
ASSERT_OK(Put("bar", "bar_value" + std::to_string(i)));
ASSERT_OK(dbfull()->Flush(FlushOptions()));
}
ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable());
ASSERT_OK(dbfull()->TEST_WaitForCompact());
Options options1;
options1.env = env_;
options1.max_open_files = -1;
OpenSecondary(options1);
ReadOptions ropts;
ropts.verify_checksums = true;
std::string value;
ASSERT_OK(db_secondary_->Get(ropts, "foo", &value));
ASSERT_EQ("foo_value" +
std::to_string(options.level0_file_num_compaction_trigger - 1),
value);
ASSERT_OK(db_secondary_->Get(ropts, "bar", &value));
ASSERT_EQ("bar_value" +
std::to_string(options.level0_file_num_compaction_trigger - 1),
value);
Iterator* iter = db_secondary_->NewIterator(ropts);
ASSERT_NE(nullptr, iter);
iter->Seek("bar");
ASSERT_TRUE(iter->Valid());
ASSERT_EQ("bar", iter->key().ToString());
ASSERT_EQ("bar_value" +
std::to_string(options.level0_file_num_compaction_trigger - 1),
iter->value().ToString());
iter->Seek("foo");
ASSERT_TRUE(iter->Valid());
ASSERT_EQ("foo", iter->key().ToString());
ASSERT_EQ("foo_value" +
std::to_string(options.level0_file_num_compaction_trigger - 1),
iter->value().ToString());
size_t count = 0;
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
++count;
}
ASSERT_EQ(2, count);
delete iter;
}
TEST_F(DBSecondaryTest, MissingTableFile) {
Options options;
options.env = env_;
options.level0_file_num_compaction_trigger = 4;
Reopen(options);
Options options1;
options1.env = env_;
options1.max_open_files = -1;
OpenSecondary(options1);
for (int i = 0; i != options.level0_file_num_compaction_trigger; ++i) {
ASSERT_OK(Put("foo", "foo_value" + std::to_string(i)));
ASSERT_OK(Put("bar", "bar_value" + std::to_string(i)));
ASSERT_OK(dbfull()->Flush(FlushOptions()));
}
ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable());
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_NE(nullptr, db_secondary_full());
ReadOptions ropts;
ropts.verify_checksums = true;
std::string value;
ASSERT_NOK(db_secondary_->Get(ropts, "foo", &value));
ASSERT_NOK(db_secondary_->Get(ropts, "bar", &value));
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
ASSERT_OK(db_secondary_->Get(ropts, "foo", &value));
ASSERT_EQ("foo_value" +
std::to_string(options.level0_file_num_compaction_trigger - 1),
value);
ASSERT_OK(db_secondary_->Get(ropts, "bar", &value));
ASSERT_EQ("bar_value" +
std::to_string(options.level0_file_num_compaction_trigger - 1),
value);
Iterator* iter = db_secondary_->NewIterator(ropts);
ASSERT_NE(nullptr, iter);
iter->Seek("bar");
ASSERT_TRUE(iter->Valid());
ASSERT_EQ("bar", iter->key().ToString());
ASSERT_EQ("bar_value" +
std::to_string(options.level0_file_num_compaction_trigger - 1),
iter->value().ToString());
iter->Seek("foo");
ASSERT_TRUE(iter->Valid());
ASSERT_EQ("foo", iter->key().ToString());
ASSERT_EQ("foo_value" +
std::to_string(options.level0_file_num_compaction_trigger - 1),
iter->value().ToString());
size_t count = 0;
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
++count;
}
ASSERT_EQ(2, count);
delete iter;
}
TEST_F(DBSecondaryTest, PrimaryDropColumnFamily) {
Options options;
options.env = env_;
const std::string kCfName1 = "pikachu";
CreateAndReopenWithCF({kCfName1}, options);
Options options1;
options1.env = env_;
options1.max_open_files = -1;
OpenSecondaryWithColumnFamilies({kCfName1}, options1);
ASSERT_EQ(2, handles_secondary_.size());
ASSERT_OK(Put(1 /*cf*/, "foo", "foo_val_1"));
ASSERT_OK(Flush(1 /*cf*/));
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
ReadOptions ropts;
ropts.verify_checksums = true;
std::string value;
ASSERT_OK(db_secondary_->Get(ropts, handles_secondary_[1], "foo", &value));
ASSERT_EQ("foo_val_1", value);
ASSERT_OK(dbfull()->DropColumnFamily(handles_[1]));
Close();
CheckFileTypeCounts(dbname_, 1, 0, 1);
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
value.clear();
ASSERT_OK(db_secondary_->Get(ropts, handles_secondary_[1], "foo", &value));
ASSERT_EQ("foo_val_1", value);
}
TEST_F(DBSecondaryTest, SwitchManifest) {
Options options;
options.env = env_;
options.level0_file_num_compaction_trigger = 4;
const std::string cf1_name("test_cf");
CreateAndReopenWithCF({cf1_name}, options);
Options options1;
options1.env = env_;
options1.max_open_files = -1;
OpenSecondaryWithColumnFamilies({kDefaultColumnFamilyName, cf1_name},
options1);
const int kNumFiles = options.level0_file_num_compaction_trigger - 1;
// Keep it smaller than 10 so that key0, key1, ..., key9 are sorted as 0, 1,
// ..., 9.
const int kNumKeys = 10;
// Create two sst
for (int i = 0; i != kNumFiles; ++i) {
for (int j = 0; j != kNumKeys; ++j) {
ASSERT_OK(Put("key" + std::to_string(j), "value_" + std::to_string(i)));
}
ASSERT_OK(Flush());
}
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
const auto& range_scan_db = [&]() {
ReadOptions tmp_ropts;
tmp_ropts.total_order_seek = true;
tmp_ropts.verify_checksums = true;
std::unique_ptr<Iterator> iter(db_secondary_->NewIterator(tmp_ropts));
int cnt = 0;
for (iter->SeekToFirst(); iter->Valid(); iter->Next(), ++cnt) {
ASSERT_EQ("key" + std::to_string(cnt), iter->key().ToString());
ASSERT_EQ("value_" + std::to_string(kNumFiles - 1),
iter->value().ToString());
}
};
range_scan_db();
// While secondary instance still keeps old MANIFEST open, we close primary,
// restart primary, performs full compaction, close again, restart again so
// that next time secondary tries to catch up with primary, the secondary
// will skip the MANIFEST in middle.
ReopenWithColumnFamilies({kDefaultColumnFamilyName, cf1_name}, options);
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ReopenWithColumnFamilies({kDefaultColumnFamilyName, cf1_name}, options);
ASSERT_OK(dbfull()->SetOptions({{"disable_auto_compactions", "false"}}));
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
range_scan_db();
}
TEST_F(DBSecondaryTest, SwitchManifestTwice) {
Options options;
options.env = env_;
options.disable_auto_compactions = true;
const std::string cf1_name("test_cf");
CreateAndReopenWithCF({cf1_name}, options);
Options options1;
options1.env = env_;
options1.max_open_files = -1;
OpenSecondaryWithColumnFamilies({kDefaultColumnFamilyName, cf1_name},
options1);
ASSERT_OK(Put("0", "value0"));
ASSERT_OK(Flush());
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
std::string value;
ReadOptions ropts;
ropts.verify_checksums = true;
ASSERT_OK(db_secondary_->Get(ropts, "0", &value));
ASSERT_EQ("value0", value);
ReopenWithColumnFamilies({kDefaultColumnFamilyName, cf1_name}, options);
ASSERT_OK(dbfull()->SetOptions({{"disable_auto_compactions", "false"}}));
ReopenWithColumnFamilies({kDefaultColumnFamilyName, cf1_name}, options);
ASSERT_OK(Put("0", "value1"));
ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
ASSERT_OK(db_secondary_->Get(ropts, "0", &value));
ASSERT_EQ("value1", value);
}
TEST_F(DBSecondaryTest, DISABLED_SwitchWAL) {
const int kNumKeysPerMemtable = 1;
Options options;
options.env = env_;
options.max_write_buffer_number = 4;
options.min_write_buffer_number_to_merge = 2;
options.memtable_factory.reset(
test::NewSpecialSkipListFactory(kNumKeysPerMemtable));
Reopen(options);
Options options1;
options1.env = env_;
options1.max_open_files = -1;
OpenSecondary(options1);
const auto& verify_db = [](DB* db1, DB* db2) {
ASSERT_NE(nullptr, db1);
ASSERT_NE(nullptr, db2);
ReadOptions read_opts;
read_opts.verify_checksums = true;
std::unique_ptr<Iterator> it1(db1->NewIterator(read_opts));
std::unique_ptr<Iterator> it2(db2->NewIterator(read_opts));
it1->SeekToFirst();
it2->SeekToFirst();