ee027fc19f
Summary: My understanding is that the purpose of write stall triggers are to wait for auto-compaction to catch up. Without auto-compaction, we don't need to stall writes. Also with this diff, flush/compaction conditions are recalculated on dynamic option change. Previously the conditions are recalculate only when write stall options are changed. Test Plan: See the new test. Removed two tests that are no longer valid. Reviewers: IslamAbdelRahman, sdong Reviewed By: sdong Subscribers: andrewkr, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D61437
132 lines
4.7 KiB
C++
132 lines
4.7 KiB
C++
// Copyright (c) 2011-present, 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 <limits>
|
|
#include <string>
|
|
|
|
#include "db/db_test_util.h"
|
|
#include "port/stack_trace.h"
|
|
#include "util/sync_point.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
class DBOptionsTest : public DBTestBase {
|
|
public:
|
|
DBOptionsTest() : DBTestBase("/db_options_test") {}
|
|
};
|
|
|
|
// RocksDB lite don't support dynamic options.
|
|
#ifndef ROCKSDB_LITE
|
|
|
|
TEST_F(DBOptionsTest, EnableAutoCompactionAndTriggerStall) {
|
|
const std::string kValue(1024, 'v');
|
|
for (int method_type = 0; method_type < 2; method_type++) {
|
|
for (int option_type = 0; option_type < 4; option_type++) {
|
|
Options options;
|
|
options.create_if_missing = true;
|
|
options.disable_auto_compactions = true;
|
|
options.write_buffer_size = 1024 * 1024;
|
|
options.compression = CompressionType::kNoCompression;
|
|
options.level0_file_num_compaction_trigger = 1;
|
|
options.level0_stop_writes_trigger = std::numeric_limits<int>::max();
|
|
options.level0_slowdown_writes_trigger = std::numeric_limits<int>::max();
|
|
options.hard_pending_compaction_bytes_limit =
|
|
std::numeric_limits<uint64_t>::max();
|
|
options.soft_pending_compaction_bytes_limit =
|
|
std::numeric_limits<uint64_t>::max();
|
|
|
|
DestroyAndReopen(options);
|
|
for (int i = 0; i < 1024 * 2; i++) {
|
|
Put(Key(i), kValue);
|
|
}
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
ASSERT_EQ(2, NumTableFilesAtLevel(0));
|
|
uint64_t l0_size = SizeAtLevel(0);
|
|
|
|
switch (option_type) {
|
|
case 0:
|
|
// test with level0_stop_writes_trigger
|
|
options.level0_stop_writes_trigger = 2;
|
|
options.level0_slowdown_writes_trigger = 2;
|
|
break;
|
|
case 1:
|
|
options.level0_slowdown_writes_trigger = 2;
|
|
break;
|
|
case 2:
|
|
options.hard_pending_compaction_bytes_limit = l0_size;
|
|
options.soft_pending_compaction_bytes_limit = l0_size;
|
|
break;
|
|
case 3:
|
|
options.soft_pending_compaction_bytes_limit = l0_size;
|
|
break;
|
|
}
|
|
Reopen(options);
|
|
dbfull()->TEST_WaitForCompact();
|
|
ASSERT_FALSE(dbfull()->TEST_write_controler().IsStopped());
|
|
ASSERT_FALSE(dbfull()->TEST_write_controler().NeedsDelay());
|
|
|
|
SyncPoint::GetInstance()->LoadDependency(
|
|
{{"DBOptionsTest::EnableAutoCompactionAndTriggerStall:1",
|
|
"BackgroundCallCompaction:0"},
|
|
{"DBImpl::BackgroundCompaction():BeforePickCompaction",
|
|
"DBOptionsTest::EnableAutoCompactionAndTriggerStall:2"},
|
|
{"DBOptionsTest::EnableAutoCompactionAndTriggerStall:3",
|
|
"DBImpl::BackgroundCompaction():AfterPickCompaction"}});
|
|
// Block background compaction.
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
switch (method_type) {
|
|
case 0:
|
|
ASSERT_OK(
|
|
dbfull()->SetOptions({{"disable_auto_compactions", "false"}}));
|
|
break;
|
|
case 1:
|
|
ASSERT_OK(dbfull()->EnableAutoCompaction(
|
|
{dbfull()->DefaultColumnFamily()}));
|
|
break;
|
|
}
|
|
TEST_SYNC_POINT("DBOptionsTest::EnableAutoCompactionAndTriggerStall:1");
|
|
// Wait for stall condition recalculate.
|
|
TEST_SYNC_POINT("DBOptionsTest::EnableAutoCompactionAndTriggerStall:2");
|
|
|
|
switch (option_type) {
|
|
case 0:
|
|
ASSERT_TRUE(dbfull()->TEST_write_controler().IsStopped());
|
|
break;
|
|
case 1:
|
|
ASSERT_FALSE(dbfull()->TEST_write_controler().IsStopped());
|
|
ASSERT_TRUE(dbfull()->TEST_write_controler().NeedsDelay());
|
|
break;
|
|
case 2:
|
|
ASSERT_TRUE(dbfull()->TEST_write_controler().IsStopped());
|
|
break;
|
|
case 3:
|
|
ASSERT_FALSE(dbfull()->TEST_write_controler().IsStopped());
|
|
ASSERT_TRUE(dbfull()->TEST_write_controler().NeedsDelay());
|
|
break;
|
|
}
|
|
TEST_SYNC_POINT("DBOptionsTest::EnableAutoCompactionAndTriggerStall:3");
|
|
|
|
// Background compaction executed.
|
|
dbfull()->TEST_WaitForCompact();
|
|
ASSERT_FALSE(dbfull()->TEST_write_controler().IsStopped());
|
|
ASSERT_FALSE(dbfull()->TEST_write_controler().NeedsDelay());
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif // ROCKSDB_LITE
|
|
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
rocksdb::port::InstallStackTraceHandler();
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|