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rocksdb/utilities/cassandra/cassandra_functional_test.cc

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// Copyright (c) 2017-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).
#include <iostream>
#include "db/db_impl/db_impl.h"
#include "rocksdb/db.h"
#include "rocksdb/merge_operator.h"
#include "rocksdb/utilities/db_ttl.h"
#include "test_util/testharness.h"
#include "util/random.h"
#include "utilities/cassandra/cassandra_compaction_filter.h"
#include "utilities/cassandra/merge_operator.h"
#include "utilities/cassandra/test_utils.h"
#include "utilities/merge_operators.h"
using namespace ROCKSDB_NAMESPACE;
namespace ROCKSDB_NAMESPACE {
namespace cassandra {
// Path to the database on file system
const std::string kDbName = test::PerThreadDBPath("cassandra_functional_test");
class CassandraStore {
public:
explicit CassandraStore(std::shared_ptr<DB> db)
: db_(db), write_option_(), get_option_() {
assert(db);
}
bool Append(const std::string& key, const RowValue& val){
std::string result;
val.Serialize(&result);
Slice valSlice(result.data(), result.size());
auto s = db_->Merge(write_option_, key, valSlice);
if (s.ok()) {
return true;
} else {
std::cerr << "ERROR " << s.ToString() << std::endl;
return false;
}
}
bool Put(const std::string& key, const RowValue& val) {
std::string result;
val.Serialize(&result);
Slice valSlice(result.data(), result.size());
auto s = db_->Put(write_option_, key, valSlice);
if (s.ok()) {
return true;
} else {
std::cerr << "ERROR " << s.ToString() << std::endl;
return false;
}
}
void Flush() {
dbfull()->TEST_FlushMemTable();
dbfull()->TEST_WaitForCompact();
}
void Compact() {
dbfull()->TEST_CompactRange(
0, nullptr, nullptr, db_->DefaultColumnFamily());
}
std::tuple<bool, RowValue> Get(const std::string& key){
std::string result;
auto s = db_->Get(get_option_, key, &result);
if (s.ok()) {
return std::make_tuple(true,
RowValue::Deserialize(result.data(),
result.size()));
}
if (!s.IsNotFound()) {
std::cerr << "ERROR " << s.ToString() << std::endl;
}
return std::make_tuple(false, RowValue(0, 0));
}
private:
std::shared_ptr<DB> db_;
WriteOptions write_option_;
ReadOptions get_option_;
DBImpl* dbfull() { return reinterpret_cast<DBImpl*>(db_.get()); }
};
class TestCompactionFilterFactory : public CompactionFilterFactory {
public:
explicit TestCompactionFilterFactory(bool purge_ttl_on_expiration,
int32_t gc_grace_period_in_seconds)
: purge_ttl_on_expiration_(purge_ttl_on_expiration),
gc_grace_period_in_seconds_(gc_grace_period_in_seconds) {}
std::unique_ptr<CompactionFilter> CreateCompactionFilter(
const CompactionFilter::Context& /*context*/) override {
return std::unique_ptr<CompactionFilter>(new CassandraCompactionFilter(
purge_ttl_on_expiration_, gc_grace_period_in_seconds_));
}
const char* Name() const override { return "TestCompactionFilterFactory"; }
private:
bool purge_ttl_on_expiration_;
int32_t gc_grace_period_in_seconds_;
};
// The class for unit-testing
class CassandraFunctionalTest : public testing::Test {
public:
CassandraFunctionalTest() {
DestroyDB(kDbName, Options()); // Start each test with a fresh DB
}
std::shared_ptr<DB> OpenDb() {
DB* db;
Options options;
options.create_if_missing = true;
options.merge_operator.reset(new CassandraValueMergeOperator(gc_grace_period_in_seconds_));
auto* cf_factory = new TestCompactionFilterFactory(
purge_ttl_on_expiration_, gc_grace_period_in_seconds_);
options.compaction_filter_factory.reset(cf_factory);
EXPECT_OK(DB::Open(options, kDbName, &db));
return std::shared_ptr<DB>(db);
}
bool purge_ttl_on_expiration_ = false;
int32_t gc_grace_period_in_seconds_ = 100;
};
// THE TEST CASES BEGIN HERE
TEST_F(CassandraFunctionalTest, SimpleMergeTest) {
CassandraStore store(OpenDb());
int64_t now = time(nullptr);
store.Append("k1", CreateTestRowValue({
CreateTestColumnSpec(kTombstone, 0, ToMicroSeconds(now + 5)),
CreateTestColumnSpec(kColumn, 1, ToMicroSeconds(now + 8)),
CreateTestColumnSpec(kExpiringColumn, 2, ToMicroSeconds(now + 5)),
}));
store.Append("k1",CreateTestRowValue({
CreateTestColumnSpec(kColumn, 0, ToMicroSeconds(now + 2)),
CreateTestColumnSpec(kExpiringColumn, 1, ToMicroSeconds(now + 5)),
CreateTestColumnSpec(kTombstone, 2, ToMicroSeconds(now + 7)),
CreateTestColumnSpec(kExpiringColumn, 7, ToMicroSeconds(now + 17)),
}));
store.Append("k1", CreateTestRowValue({
CreateTestColumnSpec(kExpiringColumn, 0, ToMicroSeconds(now + 6)),
CreateTestColumnSpec(kTombstone, 1, ToMicroSeconds(now + 5)),
CreateTestColumnSpec(kColumn, 2, ToMicroSeconds(now + 4)),
CreateTestColumnSpec(kTombstone, 11, ToMicroSeconds(now + 11)),
}));
auto ret = store.Get("k1");
ASSERT_TRUE(std::get<0>(ret));
RowValue& merged = std::get<1>(ret);
EXPECT_EQ(merged.get_columns().size(), 5);
VerifyRowValueColumns(merged.get_columns(), 0, kExpiringColumn, 0,
ToMicroSeconds(now + 6));
VerifyRowValueColumns(merged.get_columns(), 1, kColumn, 1,
ToMicroSeconds(now + 8));
VerifyRowValueColumns(merged.get_columns(), 2, kTombstone, 2,
ToMicroSeconds(now + 7));
VerifyRowValueColumns(merged.get_columns(), 3, kExpiringColumn, 7,
ToMicroSeconds(now + 17));
VerifyRowValueColumns(merged.get_columns(), 4, kTombstone, 11,
ToMicroSeconds(now + 11));
}
TEST_F(CassandraFunctionalTest,
CompactionShouldConvertExpiredColumnsToTombstone) {
CassandraStore store(OpenDb());
int64_t now= time(nullptr);
store.Append("k1", CreateTestRowValue({
CreateTestColumnSpec(kExpiringColumn, 0, ToMicroSeconds(now - kTtl - 20)), //expired
CreateTestColumnSpec(kExpiringColumn, 1, ToMicroSeconds(now - kTtl + 10)), // not expired
CreateTestColumnSpec(kTombstone, 3, ToMicroSeconds(now))
}));
store.Flush();
store.Append("k1",CreateTestRowValue({
CreateTestColumnSpec(kExpiringColumn, 0, ToMicroSeconds(now - kTtl - 10)), //expired
CreateTestColumnSpec(kColumn, 2, ToMicroSeconds(now))
}));
store.Flush();
store.Compact();
auto ret = store.Get("k1");
ASSERT_TRUE(std::get<0>(ret));
RowValue& merged = std::get<1>(ret);
EXPECT_EQ(merged.get_columns().size(), 4);
VerifyRowValueColumns(merged.get_columns(), 0, kTombstone, 0,
ToMicroSeconds(now - 10));
VerifyRowValueColumns(merged.get_columns(), 1, kExpiringColumn, 1,
ToMicroSeconds(now - kTtl + 10));
VerifyRowValueColumns(merged.get_columns(), 2, kColumn, 2,
ToMicroSeconds(now));
VerifyRowValueColumns(merged.get_columns(), 3, kTombstone, 3,
ToMicroSeconds(now));
}
TEST_F(CassandraFunctionalTest,
CompactionShouldPurgeExpiredColumnsIfPurgeTtlIsOn) {
purge_ttl_on_expiration_ = true;
CassandraStore store(OpenDb());
int64_t now = time(nullptr);
store.Append("k1", CreateTestRowValue({
CreateTestColumnSpec(kExpiringColumn, 0, ToMicroSeconds(now - kTtl - 20)), //expired
CreateTestColumnSpec(kExpiringColumn, 1, ToMicroSeconds(now)), // not expired
CreateTestColumnSpec(kTombstone, 3, ToMicroSeconds(now))
}));
store.Flush();
store.Append("k1",CreateTestRowValue({
CreateTestColumnSpec(kExpiringColumn, 0, ToMicroSeconds(now - kTtl - 10)), //expired
CreateTestColumnSpec(kColumn, 2, ToMicroSeconds(now))
}));
store.Flush();
store.Compact();
auto ret = store.Get("k1");
ASSERT_TRUE(std::get<0>(ret));
RowValue& merged = std::get<1>(ret);
EXPECT_EQ(merged.get_columns().size(), 3);
VerifyRowValueColumns(merged.get_columns(), 0, kExpiringColumn, 1,
ToMicroSeconds(now));
VerifyRowValueColumns(merged.get_columns(), 1, kColumn, 2,
ToMicroSeconds(now));
VerifyRowValueColumns(merged.get_columns(), 2, kTombstone, 3,
ToMicroSeconds(now));
}
TEST_F(CassandraFunctionalTest,
CompactionShouldRemoveRowWhenAllColumnsExpiredIfPurgeTtlIsOn) {
purge_ttl_on_expiration_ = true;
CassandraStore store(OpenDb());
int64_t now = time(nullptr);
store.Append("k1", CreateTestRowValue({
CreateTestColumnSpec(kExpiringColumn, 0, ToMicroSeconds(now - kTtl - 20)),
CreateTestColumnSpec(kExpiringColumn, 1, ToMicroSeconds(now - kTtl - 20)),
}));
store.Flush();
store.Append("k1",CreateTestRowValue({
CreateTestColumnSpec(kExpiringColumn, 0, ToMicroSeconds(now - kTtl - 10)),
}));
store.Flush();
store.Compact();
ASSERT_FALSE(std::get<0>(store.Get("k1")));
}
TEST_F(CassandraFunctionalTest,
CompactionShouldRemoveTombstoneExceedingGCGracePeriod) {
purge_ttl_on_expiration_ = true;
CassandraStore store(OpenDb());
int64_t now = time(nullptr);
store.Append("k1", CreateTestRowValue({
CreateTestColumnSpec(kTombstone, 0, ToMicroSeconds(now - gc_grace_period_in_seconds_ - 1)),
CreateTestColumnSpec(kColumn, 1, ToMicroSeconds(now))
}));
store.Append("k2", CreateTestRowValue({
CreateTestColumnSpec(kColumn, 0, ToMicroSeconds(now))
}));
store.Flush();
store.Append("k1",CreateTestRowValue({
CreateTestColumnSpec(kColumn, 1, ToMicroSeconds(now)),
}));
store.Flush();
store.Compact();
auto ret = store.Get("k1");
ASSERT_TRUE(std::get<0>(ret));
RowValue& gced = std::get<1>(ret);
EXPECT_EQ(gced.get_columns().size(), 1);
VerifyRowValueColumns(gced.get_columns(), 0, kColumn, 1, ToMicroSeconds(now));
}
TEST_F(CassandraFunctionalTest, CompactionShouldRemoveTombstoneFromPut) {
purge_ttl_on_expiration_ = true;
CassandraStore store(OpenDb());
int64_t now = time(nullptr);
store.Put("k1", CreateTestRowValue({
CreateTestColumnSpec(kTombstone, 0, ToMicroSeconds(now - gc_grace_period_in_seconds_ - 1)),
}));
store.Flush();
store.Compact();
ASSERT_FALSE(std::get<0>(store.Get("k1")));
}
} // namespace cassandra
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}