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// Copyright (c) Meta Platforms, Inc. and affiliates.
// 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 "db/db_test_util.h"
#include "port/port.h"
#include "util/random.h"
namespace ROCKSDB_NAMESPACE {
class DBClipTest : public DBTestBase {
public:
DBClipTest() : DBTestBase("db_clip_test", /*env_do_fsync=*/true) {}
};
TEST_F(DBClipTest, TestClipRange) {
Options options = CurrentOptions();
options.write_buffer_size = 10 * 1024 * 1024;
options.max_bytes_for_level_multiplier = 2;
options.num_levels = 3;
options.max_background_compactions = 3;
options.disable_auto_compactions = true;
options.statistics = CreateDBStatistics();
DestroyAndReopen(options);
int32_t value_size = 10 * 1024; // 10 KB
Random rnd(301);
std::map<int32_t, std::string> values;
// file [0 => 100), [100 => 200), ... [900, 1000)
for (auto i = 0; i < 10; i++) {
for (auto j = 0; j < 100; j++) {
auto k = i * 100 + j;
values[k] = rnd.RandomString(value_size);
ASSERT_OK(Put(Key(k), values[k]));
}
ASSERT_OK(Flush());
}
ASSERT_EQ("10", FilesPerLevel(0));
auto begin_key = Key(251), end_key = Key(751);
ASSERT_OK(
db_->ClipColumnFamily(db_->DefaultColumnFamily(), begin_key, end_key));
for (auto i = 0; i < 251; i++) {
ReadOptions ropts;
std::string result;
auto s = db_->Get(ropts, Key(i), &result);
ASSERT_TRUE(s.IsNotFound());
}
for (auto i = 251; i < 751; i++) {
ASSERT_EQ(Get(Key(i)), values[i]);
}
for (auto i = 751; i < 1000; i++) {
ReadOptions ropts;
std::string result;
auto s = db_->Get(ropts, Key(i), &result);
ASSERT_TRUE(s.IsNotFound());
}
std::vector<LiveFileMetaData> all_metadata;
db_->GetLiveFilesMetaData(&all_metadata);
for (auto& md : all_metadata) {
// make sure clip_begin_key <= file_smallestkey <= file_largestkey <=
// clip_end_key
bool in_range = false;
if (options.comparator->Compare(begin_key, md.smallestkey) <= 0 &&
options.comparator->Compare(end_key, md.largestkey) > 0) {
in_range = true;
}
ASSERT_TRUE(in_range);
}
CompactRangeOptions compact_options;
compact_options.change_level = true;
compact_options.target_level = 2;
ASSERT_OK(db_->CompactRange(compact_options, nullptr, nullptr));
ASSERT_EQ("0,0,3", FilesPerLevel(0));
for (auto i = 0; i < 10; i += 2) {
for (auto j = 0; j < 100; j++) {
auto k = i * 100 + j;
ASSERT_OK(Put(Key(k), values[k]));
}
ASSERT_OK(Flush());
}
ASSERT_EQ("5,0,3", FilesPerLevel(0));
ASSERT_OK(dbfull()->TEST_CompactRange(0, nullptr, nullptr));
ASSERT_EQ("0,5,3", FilesPerLevel(0));
for (auto i = 1; i < 10; i += 2) {
for (auto j = 0; j < 100; j++) {
auto k = i * 100 + j;
ASSERT_OK(Put(Key(k), values[k]));
}
ASSERT_OK(Flush());
}
ASSERT_EQ("5,5,3", FilesPerLevel(0));
auto begin_key_2 = Key(222), end_key_2 = Key(888);
ASSERT_OK(db_->ClipColumnFamily(db_->DefaultColumnFamily(), begin_key_2,
end_key_2));
for (auto i = 0; i < 222; i++) {
ReadOptions ropts;
std::string result;
auto s = db_->Get(ropts, Key(i), &result);
ASSERT_TRUE(s.IsNotFound());
}
for (auto i = 222; i < 888; i++) {
ASSERT_EQ(Get(Key(i)), values[i]);
}
for (auto i = 888; i < 1000; i++) {
ReadOptions ropts;
std::string result;
auto s = db_->Get(ropts, Key(i), &result);
ASSERT_TRUE(s.IsNotFound());
}
std::vector<LiveFileMetaData> all_metadata_2;
db_->GetLiveFilesMetaData(&all_metadata_2);
for (auto& md : all_metadata_2) {
// make sure clip_begin_key <= file_smallestkey <= file_largestkey <=
// clip_end_key
bool in_range = false;
if (begin_key_2.compare(md.smallestkey) <= 0 &&
end_key_2.compare(md.largestkey) > 0) {
in_range = true;
}
ASSERT_TRUE(in_range);
}
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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