e6534900bd
Summary:
In DBImpl::CloseHelper, we wait for bg_compaction_scheduled_
and bg_flush_scheduled_ to drop to 0. Unschedule is called prior
to cancel any unscheduled flushes/compactions. It is assumed that
anything in the high priority is a flush, and anything in the low
priority pool is a compaction. This assumption, however, is broken when
the high-pri pool is full.
As a result, bg_compaction_scheduled_ can go < 0 and bg_flush_scheduled_
will remain > 0 and DB can be in hang state.
The fix is, we decrement the `bg_{flush,compaction,bottom_compaction}_scheduled_`
inside the `Unschedule{Flush,Compaction,BottomCompaction}Callback()`s. DB
`mutex_` will make the counts atomic in `Unschedule`.
Related discussion: https://github.com/facebook/rocksdb/issues/7928
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8125
Test Plan: Added new test case which hangs without the fix.
Reviewed By: jay-zhuang
Differential Revision: D27390043
Pulled By: ajkr
fbshipit-source-id: 78a367fba9a59ac5607ad24bd1c46dc16d5ec110
1365 lines
48 KiB
C++
1365 lines
48 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include <atomic>
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#include "db/db_impl/db_impl.h"
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#include "db/db_test_util.h"
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#include "env/mock_env.h"
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#include "file/filename.h"
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#include "port/port.h"
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#include "port/stack_trace.h"
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#include "rocksdb/utilities/transaction_db.h"
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#include "test_util/sync_point.h"
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#include "util/cast_util.h"
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#include "util/mutexlock.h"
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#include "utilities/fault_injection_env.h"
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#include "utilities/fault_injection_fs.h"
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namespace ROCKSDB_NAMESPACE {
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class DBFlushTest : public DBTestBase {
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public:
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DBFlushTest() : DBTestBase("/db_flush_test", /*env_do_fsync=*/true) {}
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};
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class DBFlushDirectIOTest : public DBFlushTest,
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public ::testing::WithParamInterface<bool> {
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public:
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DBFlushDirectIOTest() : DBFlushTest() {}
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};
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class DBAtomicFlushTest : public DBFlushTest,
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public ::testing::WithParamInterface<bool> {
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public:
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DBAtomicFlushTest() : DBFlushTest() {}
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};
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// We had issue when two background threads trying to flush at the same time,
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// only one of them get committed. The test verifies the issue is fixed.
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TEST_F(DBFlushTest, FlushWhileWritingManifest) {
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Options options;
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options.disable_auto_compactions = true;
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options.max_background_flushes = 2;
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options.env = env_;
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Reopen(options);
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FlushOptions no_wait;
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no_wait.wait = false;
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no_wait.allow_write_stall=true;
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SyncPoint::GetInstance()->LoadDependency(
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{{"VersionSet::LogAndApply:WriteManifest",
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"DBFlushTest::FlushWhileWritingManifest:1"},
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{"MemTableList::TryInstallMemtableFlushResults:InProgress",
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"VersionSet::LogAndApply:WriteManifestDone"}});
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SyncPoint::GetInstance()->EnableProcessing();
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ASSERT_OK(Put("foo", "v"));
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ASSERT_OK(dbfull()->Flush(no_wait));
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TEST_SYNC_POINT("DBFlushTest::FlushWhileWritingManifest:1");
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ASSERT_OK(Put("bar", "v"));
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ASSERT_OK(dbfull()->Flush(no_wait));
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// If the issue is hit we will wait here forever.
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ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable());
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#ifndef ROCKSDB_LITE
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ASSERT_EQ(2, TotalTableFiles());
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#endif // ROCKSDB_LITE
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}
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// Disable this test temporarily on Travis as it fails intermittently.
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// Github issue: #4151
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TEST_F(DBFlushTest, SyncFail) {
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std::unique_ptr<FaultInjectionTestEnv> fault_injection_env(
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new FaultInjectionTestEnv(env_));
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Options options;
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options.disable_auto_compactions = true;
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options.env = fault_injection_env.get();
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SyncPoint::GetInstance()->LoadDependency(
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{{"DBFlushTest::SyncFail:1", "DBImpl::SyncClosedLogs:Start"},
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{"DBImpl::SyncClosedLogs:Failed", "DBFlushTest::SyncFail:2"}});
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SyncPoint::GetInstance()->EnableProcessing();
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CreateAndReopenWithCF({"pikachu"}, options);
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ASSERT_OK(Put("key", "value"));
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FlushOptions flush_options;
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flush_options.wait = false;
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ASSERT_OK(dbfull()->Flush(flush_options));
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// Flush installs a new super-version. Get the ref count after that.
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fault_injection_env->SetFilesystemActive(false);
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TEST_SYNC_POINT("DBFlushTest::SyncFail:1");
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TEST_SYNC_POINT("DBFlushTest::SyncFail:2");
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fault_injection_env->SetFilesystemActive(true);
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// Now the background job will do the flush; wait for it.
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// Returns the IO error happend during flush.
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ASSERT_NOK(dbfull()->TEST_WaitForFlushMemTable());
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#ifndef ROCKSDB_LITE
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ASSERT_EQ("", FilesPerLevel()); // flush failed.
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#endif // ROCKSDB_LITE
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Destroy(options);
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}
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TEST_F(DBFlushTest, SyncSkip) {
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Options options = CurrentOptions();
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SyncPoint::GetInstance()->LoadDependency(
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{{"DBFlushTest::SyncSkip:1", "DBImpl::SyncClosedLogs:Skip"},
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{"DBImpl::SyncClosedLogs:Skip", "DBFlushTest::SyncSkip:2"}});
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SyncPoint::GetInstance()->EnableProcessing();
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Reopen(options);
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ASSERT_OK(Put("key", "value"));
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FlushOptions flush_options;
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flush_options.wait = false;
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ASSERT_OK(dbfull()->Flush(flush_options));
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TEST_SYNC_POINT("DBFlushTest::SyncSkip:1");
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TEST_SYNC_POINT("DBFlushTest::SyncSkip:2");
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// Now the background job will do the flush; wait for it.
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ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable());
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Destroy(options);
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}
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TEST_F(DBFlushTest, FlushInLowPriThreadPool) {
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// Verify setting an empty high-pri (flush) thread pool causes flushes to be
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// scheduled in the low-pri (compaction) thread pool.
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Options options = CurrentOptions();
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options.level0_file_num_compaction_trigger = 4;
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options.memtable_factory.reset(new SpecialSkipListFactory(1));
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Reopen(options);
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env_->SetBackgroundThreads(0, Env::HIGH);
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std::thread::id tid;
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int num_flushes = 0, num_compactions = 0;
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SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::BGWorkFlush", [&](void* /*arg*/) {
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if (tid == std::thread::id()) {
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tid = std::this_thread::get_id();
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} else {
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ASSERT_EQ(tid, std::this_thread::get_id());
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}
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++num_flushes;
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});
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SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::BGWorkCompaction", [&](void* /*arg*/) {
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ASSERT_EQ(tid, std::this_thread::get_id());
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++num_compactions;
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});
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SyncPoint::GetInstance()->EnableProcessing();
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ASSERT_OK(Put("key", "val"));
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for (int i = 0; i < 4; ++i) {
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ASSERT_OK(Put("key", "val"));
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ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable());
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}
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ASSERT_OK(dbfull()->TEST_WaitForCompact());
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ASSERT_EQ(4, num_flushes);
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ASSERT_EQ(1, num_compactions);
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}
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// Test when flush job is submitted to low priority thread pool and when DB is
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// closed in the meanwhile, CloseHelper doesn't hang.
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TEST_F(DBFlushTest, CloseDBWhenFlushInLowPri) {
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Options options = CurrentOptions();
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options.max_background_flushes = 1;
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options.max_total_wal_size = 8192;
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DestroyAndReopen(options);
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CreateColumnFamilies({"cf1", "cf2"}, options);
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env_->SetBackgroundThreads(0, Env::HIGH);
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env_->SetBackgroundThreads(1, Env::LOW);
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test::SleepingBackgroundTask sleeping_task_low;
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int num_flushes = 0;
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SyncPoint::GetInstance()->SetCallBack("DBImpl::BGWorkFlush",
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[&](void* /*arg*/) { ++num_flushes; });
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int num_low_flush_unscheduled = 0;
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SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::UnscheduleLowFlushCallback", [&](void* /*arg*/) {
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num_low_flush_unscheduled++;
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// There should be one flush job in low pool that needs to be
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// unscheduled
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ASSERT_EQ(num_low_flush_unscheduled, 1);
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});
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int num_high_flush_unscheduled = 0;
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SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::UnscheduleHighFlushCallback", [&](void* /*arg*/) {
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num_high_flush_unscheduled++;
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// There should be no flush job in high pool
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ASSERT_EQ(num_high_flush_unscheduled, 0);
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});
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SyncPoint::GetInstance()->EnableProcessing();
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ASSERT_OK(Put(0, "key1", DummyString(8192)));
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// Block thread so that flush cannot be run and can be removed from the queue
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// when called Unschedule.
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env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &sleeping_task_low,
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Env::Priority::LOW);
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sleeping_task_low.WaitUntilSleeping();
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// Trigger flush and flush job will be scheduled to LOW priority thread.
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ASSERT_OK(Put(0, "key2", DummyString(8192)));
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// Close DB and flush job in low priority queue will be removed without
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// running.
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Close();
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sleeping_task_low.WakeUp();
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sleeping_task_low.WaitUntilDone();
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ASSERT_EQ(0, num_flushes);
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TryReopenWithColumnFamilies({"default", "cf1", "cf2"}, options);
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ASSERT_OK(Put(0, "key3", DummyString(8192)));
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ASSERT_OK(Flush(0));
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ASSERT_EQ(1, num_flushes);
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}
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TEST_F(DBFlushTest, ManualFlushWithMinWriteBufferNumberToMerge) {
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Options options = CurrentOptions();
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options.write_buffer_size = 100;
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options.max_write_buffer_number = 4;
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options.min_write_buffer_number_to_merge = 3;
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Reopen(options);
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SyncPoint::GetInstance()->LoadDependency(
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{{"DBImpl::BGWorkFlush",
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"DBFlushTest::ManualFlushWithMinWriteBufferNumberToMerge:1"},
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{"DBFlushTest::ManualFlushWithMinWriteBufferNumberToMerge:2",
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"FlushJob::WriteLevel0Table"}});
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SyncPoint::GetInstance()->EnableProcessing();
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ASSERT_OK(Put("key1", "value1"));
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port::Thread t([&]() {
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// The call wait for flush to finish, i.e. with flush_options.wait = true.
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ASSERT_OK(Flush());
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});
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// Wait for flush start.
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TEST_SYNC_POINT("DBFlushTest::ManualFlushWithMinWriteBufferNumberToMerge:1");
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// Insert a second memtable before the manual flush finish.
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// At the end of the manual flush job, it will check if further flush
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// is needed, but it will not trigger flush of the second memtable because
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// min_write_buffer_number_to_merge is not reached.
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ASSERT_OK(Put("key2", "value2"));
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ASSERT_OK(dbfull()->TEST_SwitchMemtable());
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TEST_SYNC_POINT("DBFlushTest::ManualFlushWithMinWriteBufferNumberToMerge:2");
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// Manual flush should return, without waiting for flush indefinitely.
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t.join();
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}
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TEST_F(DBFlushTest, ScheduleOnlyOneBgThread) {
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Options options = CurrentOptions();
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Reopen(options);
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SyncPoint::GetInstance()->DisableProcessing();
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SyncPoint::GetInstance()->ClearAllCallBacks();
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int called = 0;
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SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::MaybeScheduleFlushOrCompaction:AfterSchedule:0", [&](void* arg) {
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ASSERT_NE(nullptr, arg);
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auto unscheduled_flushes = *reinterpret_cast<int*>(arg);
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ASSERT_EQ(0, unscheduled_flushes);
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++called;
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});
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SyncPoint::GetInstance()->EnableProcessing();
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ASSERT_OK(Put("a", "foo"));
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FlushOptions flush_opts;
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ASSERT_OK(dbfull()->Flush(flush_opts));
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ASSERT_EQ(1, called);
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SyncPoint::GetInstance()->DisableProcessing();
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SyncPoint::GetInstance()->ClearAllCallBacks();
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}
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TEST_P(DBFlushDirectIOTest, DirectIO) {
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Options options;
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options.create_if_missing = true;
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options.disable_auto_compactions = true;
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options.max_background_flushes = 2;
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options.use_direct_io_for_flush_and_compaction = GetParam();
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options.env = new MockEnv(Env::Default());
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SyncPoint::GetInstance()->SetCallBack(
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"BuildTable:create_file", [&](void* arg) {
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bool* use_direct_writes = static_cast<bool*>(arg);
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ASSERT_EQ(*use_direct_writes,
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options.use_direct_io_for_flush_and_compaction);
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});
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SyncPoint::GetInstance()->EnableProcessing();
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Reopen(options);
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ASSERT_OK(Put("foo", "v"));
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FlushOptions flush_options;
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flush_options.wait = true;
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ASSERT_OK(dbfull()->Flush(flush_options));
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Destroy(options);
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delete options.env;
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}
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TEST_F(DBFlushTest, FlushError) {
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Options options;
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std::unique_ptr<FaultInjectionTestEnv> fault_injection_env(
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new FaultInjectionTestEnv(env_));
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options.write_buffer_size = 100;
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options.max_write_buffer_number = 4;
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options.min_write_buffer_number_to_merge = 3;
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options.disable_auto_compactions = true;
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options.env = fault_injection_env.get();
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Reopen(options);
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ASSERT_OK(Put("key1", "value1"));
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ASSERT_OK(Put("key2", "value2"));
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fault_injection_env->SetFilesystemActive(false);
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Status s = dbfull()->TEST_SwitchMemtable();
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fault_injection_env->SetFilesystemActive(true);
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Destroy(options);
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ASSERT_NE(s, Status::OK());
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}
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TEST_F(DBFlushTest, ManualFlushFailsInReadOnlyMode) {
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// Regression test for bug where manual flush hangs forever when the DB
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// is in read-only mode. Verify it now at least returns, despite failing.
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Options options;
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std::unique_ptr<FaultInjectionTestEnv> fault_injection_env(
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new FaultInjectionTestEnv(env_));
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options.env = fault_injection_env.get();
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options.max_write_buffer_number = 2;
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Reopen(options);
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// Trigger a first flush but don't let it run
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ASSERT_OK(db_->PauseBackgroundWork());
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ASSERT_OK(Put("key1", "value1"));
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FlushOptions flush_opts;
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flush_opts.wait = false;
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ASSERT_OK(db_->Flush(flush_opts));
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// Write a key to the second memtable so we have something to flush later
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// after the DB is in read-only mode.
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ASSERT_OK(Put("key2", "value2"));
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// Let the first flush continue, hit an error, and put the DB in read-only
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// mode.
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fault_injection_env->SetFilesystemActive(false);
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ASSERT_OK(db_->ContinueBackgroundWork());
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// We ingested the error to env, so the returned status is not OK.
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ASSERT_NOK(dbfull()->TEST_WaitForFlushMemTable());
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#ifndef ROCKSDB_LITE
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uint64_t num_bg_errors;
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ASSERT_TRUE(db_->GetIntProperty(DB::Properties::kBackgroundErrors,
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&num_bg_errors));
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ASSERT_GT(num_bg_errors, 0);
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#endif // ROCKSDB_LITE
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// In the bug scenario, triggering another flush would cause the second flush
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// to hang forever. After the fix we expect it to return an error.
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ASSERT_NOK(db_->Flush(FlushOptions()));
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Close();
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}
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TEST_F(DBFlushTest, CFDropRaceWithWaitForFlushMemTables) {
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Options options = CurrentOptions();
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options.create_if_missing = true;
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CreateAndReopenWithCF({"pikachu"}, options);
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SyncPoint::GetInstance()->DisableProcessing();
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SyncPoint::GetInstance()->LoadDependency(
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{{"DBImpl::FlushMemTable:AfterScheduleFlush",
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"DBFlushTest::CFDropRaceWithWaitForFlushMemTables:BeforeDrop"},
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{"DBFlushTest::CFDropRaceWithWaitForFlushMemTables:AfterFree",
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"DBImpl::BackgroundCallFlush:start"},
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{"DBImpl::BackgroundCallFlush:start",
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"DBImpl::FlushMemTable:BeforeWaitForBgFlush"}});
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SyncPoint::GetInstance()->EnableProcessing();
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ASSERT_EQ(2, handles_.size());
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ASSERT_OK(Put(1, "key", "value"));
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auto* cfd = static_cast<ColumnFamilyHandleImpl*>(handles_[1])->cfd();
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port::Thread drop_cf_thr([&]() {
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TEST_SYNC_POINT(
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"DBFlushTest::CFDropRaceWithWaitForFlushMemTables:BeforeDrop");
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ASSERT_OK(dbfull()->DropColumnFamily(handles_[1]));
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ASSERT_OK(dbfull()->DestroyColumnFamilyHandle(handles_[1]));
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handles_.resize(1);
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TEST_SYNC_POINT(
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"DBFlushTest::CFDropRaceWithWaitForFlushMemTables:AfterFree");
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});
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FlushOptions flush_opts;
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flush_opts.allow_write_stall = true;
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ASSERT_NOK(dbfull()->TEST_FlushMemTable(cfd, flush_opts));
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drop_cf_thr.join();
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Close();
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SyncPoint::GetInstance()->DisableProcessing();
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}
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#ifndef ROCKSDB_LITE
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TEST_F(DBFlushTest, FireOnFlushCompletedAfterCommittedResult) {
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class TestListener : public EventListener {
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public:
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void OnFlushCompleted(DB* db, const FlushJobInfo& info) override {
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// There's only one key in each flush.
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ASSERT_EQ(info.smallest_seqno, info.largest_seqno);
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ASSERT_NE(0, info.smallest_seqno);
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if (info.smallest_seqno == seq1) {
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// First flush completed
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ASSERT_FALSE(completed1);
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completed1 = true;
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CheckFlushResultCommitted(db, seq1);
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} else {
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// Second flush completed
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ASSERT_FALSE(completed2);
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completed2 = true;
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ASSERT_EQ(info.smallest_seqno, seq2);
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CheckFlushResultCommitted(db, seq2);
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}
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}
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void CheckFlushResultCommitted(DB* db, SequenceNumber seq) {
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DBImpl* db_impl = static_cast_with_check<DBImpl>(db);
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InstrumentedMutex* mutex = db_impl->mutex();
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mutex->Lock();
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auto* cfd = static_cast_with_check<ColumnFamilyHandleImpl>(
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db->DefaultColumnFamily())
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->cfd();
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ASSERT_LT(seq, cfd->imm()->current()->GetEarliestSequenceNumber());
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mutex->Unlock();
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}
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std::atomic<SequenceNumber> seq1{0};
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std::atomic<SequenceNumber> seq2{0};
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std::atomic<bool> completed1{false};
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std::atomic<bool> completed2{false};
|
|
};
|
|
std::shared_ptr<TestListener> listener = std::make_shared<TestListener>();
|
|
|
|
SyncPoint::GetInstance()->LoadDependency(
|
|
{{"DBImpl::BackgroundCallFlush:start",
|
|
"DBFlushTest::FireOnFlushCompletedAfterCommittedResult:WaitFirst"},
|
|
{"DBImpl::FlushMemTableToOutputFile:Finish",
|
|
"DBFlushTest::FireOnFlushCompletedAfterCommittedResult:WaitSecond"}});
|
|
SyncPoint::GetInstance()->SetCallBack(
|
|
"FlushJob::WriteLevel0Table", [&listener](void* arg) {
|
|
// Wait for the second flush finished, out of mutex.
|
|
auto* mems = reinterpret_cast<autovector<MemTable*>*>(arg);
|
|
if (mems->front()->GetEarliestSequenceNumber() == listener->seq1 - 1) {
|
|
TEST_SYNC_POINT(
|
|
"DBFlushTest::FireOnFlushCompletedAfterCommittedResult:"
|
|
"WaitSecond");
|
|
}
|
|
});
|
|
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.listeners.push_back(listener);
|
|
// Setting max_flush_jobs = max_background_jobs / 4 = 2.
|
|
options.max_background_jobs = 8;
|
|
// Allow 2 immutable memtables.
|
|
options.max_write_buffer_number = 3;
|
|
Reopen(options);
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
ASSERT_OK(Put("foo", "v"));
|
|
listener->seq1 = db_->GetLatestSequenceNumber();
|
|
// t1 will wait for the second flush complete before committing flush result.
|
|
auto t1 = port::Thread([&]() {
|
|
// flush_opts.wait = true
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
});
|
|
// Wait for first flush started.
|
|
TEST_SYNC_POINT(
|
|
"DBFlushTest::FireOnFlushCompletedAfterCommittedResult:WaitFirst");
|
|
// The second flush will exit early without commit its result. The work
|
|
// is delegated to the first flush.
|
|
ASSERT_OK(Put("bar", "v"));
|
|
listener->seq2 = db_->GetLatestSequenceNumber();
|
|
FlushOptions flush_opts;
|
|
flush_opts.wait = false;
|
|
ASSERT_OK(db_->Flush(flush_opts));
|
|
t1.join();
|
|
ASSERT_TRUE(listener->completed1);
|
|
ASSERT_TRUE(listener->completed2);
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
SyncPoint::GetInstance()->ClearAllCallBacks();
|
|
}
|
|
#endif // !ROCKSDB_LITE
|
|
|
|
TEST_F(DBFlushTest, FlushWithBlob) {
|
|
constexpr uint64_t min_blob_size = 10;
|
|
|
|
Options options;
|
|
options.enable_blob_files = true;
|
|
options.min_blob_size = min_blob_size;
|
|
options.disable_auto_compactions = true;
|
|
options.env = env_;
|
|
|
|
Reopen(options);
|
|
|
|
constexpr char short_value[] = "short";
|
|
static_assert(sizeof(short_value) - 1 < min_blob_size,
|
|
"short_value too long");
|
|
|
|
constexpr char long_value[] = "long_value";
|
|
static_assert(sizeof(long_value) - 1 >= min_blob_size,
|
|
"long_value too short");
|
|
|
|
ASSERT_OK(Put("key1", short_value));
|
|
ASSERT_OK(Put("key2", long_value));
|
|
|
|
ASSERT_OK(Flush());
|
|
|
|
ASSERT_EQ(Get("key1"), short_value);
|
|
ASSERT_EQ(Get("key2"), long_value);
|
|
|
|
VersionSet* const versions = dbfull()->TEST_GetVersionSet();
|
|
assert(versions);
|
|
|
|
ColumnFamilyData* const cfd = versions->GetColumnFamilySet()->GetDefault();
|
|
assert(cfd);
|
|
|
|
Version* const current = cfd->current();
|
|
assert(current);
|
|
|
|
const VersionStorageInfo* const storage_info = current->storage_info();
|
|
assert(storage_info);
|
|
|
|
const auto& l0_files = storage_info->LevelFiles(0);
|
|
ASSERT_EQ(l0_files.size(), 1);
|
|
|
|
const FileMetaData* const table_file = l0_files[0];
|
|
assert(table_file);
|
|
|
|
const auto& blob_files = storage_info->GetBlobFiles();
|
|
ASSERT_EQ(blob_files.size(), 1);
|
|
|
|
const auto& blob_file = blob_files.begin()->second;
|
|
assert(blob_file);
|
|
|
|
ASSERT_EQ(table_file->smallest.user_key(), "key1");
|
|
ASSERT_EQ(table_file->largest.user_key(), "key2");
|
|
ASSERT_EQ(table_file->fd.smallest_seqno, 1);
|
|
ASSERT_EQ(table_file->fd.largest_seqno, 2);
|
|
ASSERT_EQ(table_file->oldest_blob_file_number,
|
|
blob_file->GetBlobFileNumber());
|
|
|
|
ASSERT_EQ(blob_file->GetTotalBlobCount(), 1);
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
const InternalStats* const internal_stats = cfd->internal_stats();
|
|
assert(internal_stats);
|
|
|
|
const auto& compaction_stats = internal_stats->TEST_GetCompactionStats();
|
|
ASSERT_FALSE(compaction_stats.empty());
|
|
ASSERT_EQ(compaction_stats[0].bytes_written, table_file->fd.GetFileSize());
|
|
ASSERT_EQ(compaction_stats[0].bytes_written_blob,
|
|
blob_file->GetTotalBlobBytes());
|
|
ASSERT_EQ(compaction_stats[0].num_output_files, 1);
|
|
ASSERT_EQ(compaction_stats[0].num_output_files_blob, 1);
|
|
|
|
const uint64_t* const cf_stats_value = internal_stats->TEST_GetCFStatsValue();
|
|
ASSERT_EQ(cf_stats_value[InternalStats::BYTES_FLUSHED],
|
|
compaction_stats[0].bytes_written +
|
|
compaction_stats[0].bytes_written_blob);
|
|
#endif // ROCKSDB_LITE
|
|
}
|
|
|
|
TEST_F(DBFlushTest, FlushWithChecksumHandoff1) {
|
|
if (mem_env_ || encrypted_env_) {
|
|
ROCKSDB_GTEST_SKIP("Test requires non-mem or non-encrypted environment");
|
|
return;
|
|
}
|
|
std::shared_ptr<FaultInjectionTestFS> fault_fs(
|
|
new FaultInjectionTestFS(FileSystem::Default()));
|
|
std::unique_ptr<Env> fault_fs_env(NewCompositeEnv(fault_fs));
|
|
Options options = CurrentOptions();
|
|
options.write_buffer_size = 100;
|
|
options.max_write_buffer_number = 4;
|
|
options.min_write_buffer_number_to_merge = 3;
|
|
options.disable_auto_compactions = true;
|
|
options.env = fault_fs_env.get();
|
|
options.checksum_handoff_file_types.Add(FileType::kTableFile);
|
|
Reopen(options);
|
|
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kCRC32c);
|
|
ASSERT_OK(Put("key1", "value1"));
|
|
ASSERT_OK(Put("key2", "value2"));
|
|
ASSERT_OK(dbfull()->TEST_SwitchMemtable());
|
|
|
|
// The hash does not match, write fails
|
|
// fault_fs->SetChecksumHandoffFuncType(ChecksumType::kxxHash);
|
|
// Since the file system returns IOStatus::Corruption, it is an
|
|
// unrecoverable error.
|
|
SyncPoint::GetInstance()->SetCallBack("FlushJob::Start", [&](void*) {
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kxxHash);
|
|
});
|
|
ASSERT_OK(Put("key3", "value3"));
|
|
ASSERT_OK(Put("key4", "value4"));
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
Status s = Flush();
|
|
ASSERT_EQ(s.severity(),
|
|
ROCKSDB_NAMESPACE::Status::Severity::kUnrecoverableError);
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
Destroy(options);
|
|
Reopen(options);
|
|
|
|
// The file system does not support checksum handoff. The check
|
|
// will be ignored.
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kNoChecksum);
|
|
ASSERT_OK(Put("key5", "value5"));
|
|
ASSERT_OK(Put("key6", "value6"));
|
|
ASSERT_OK(dbfull()->TEST_SwitchMemtable());
|
|
|
|
// Each write will be similated as corrupted.
|
|
// Since the file system returns IOStatus::Corruption, it is an
|
|
// unrecoverable error.
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kCRC32c);
|
|
SyncPoint::GetInstance()->SetCallBack("FlushJob::Start", [&](void*) {
|
|
fault_fs->IngestDataCorruptionBeforeWrite();
|
|
});
|
|
ASSERT_OK(Put("key7", "value7"));
|
|
ASSERT_OK(Put("key8", "value8"));
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
s = Flush();
|
|
ASSERT_EQ(s.severity(),
|
|
ROCKSDB_NAMESPACE::Status::Severity::kUnrecoverableError);
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
|
|
Destroy(options);
|
|
}
|
|
|
|
TEST_F(DBFlushTest, FlushWithChecksumHandoff2) {
|
|
if (mem_env_ || encrypted_env_) {
|
|
ROCKSDB_GTEST_SKIP("Test requires non-mem or non-encrypted environment");
|
|
return;
|
|
}
|
|
std::shared_ptr<FaultInjectionTestFS> fault_fs(
|
|
new FaultInjectionTestFS(FileSystem::Default()));
|
|
std::unique_ptr<Env> fault_fs_env(NewCompositeEnv(fault_fs));
|
|
Options options = CurrentOptions();
|
|
options.write_buffer_size = 100;
|
|
options.max_write_buffer_number = 4;
|
|
options.min_write_buffer_number_to_merge = 3;
|
|
options.disable_auto_compactions = true;
|
|
options.env = fault_fs_env.get();
|
|
Reopen(options);
|
|
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kCRC32c);
|
|
ASSERT_OK(Put("key1", "value1"));
|
|
ASSERT_OK(Put("key2", "value2"));
|
|
ASSERT_OK(Flush());
|
|
|
|
// options is not set, the checksum handoff will not be triggered
|
|
SyncPoint::GetInstance()->SetCallBack("FlushJob::Start", [&](void*) {
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kxxHash);
|
|
});
|
|
ASSERT_OK(Put("key3", "value3"));
|
|
ASSERT_OK(Put("key4", "value4"));
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
ASSERT_OK(Flush());
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
Destroy(options);
|
|
Reopen(options);
|
|
|
|
// The file system does not support checksum handoff. The check
|
|
// will be ignored.
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kNoChecksum);
|
|
ASSERT_OK(Put("key5", "value5"));
|
|
ASSERT_OK(Put("key6", "value6"));
|
|
ASSERT_OK(Flush());
|
|
|
|
// options is not set, the checksum handoff will not be triggered
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kCRC32c);
|
|
SyncPoint::GetInstance()->SetCallBack("FlushJob::Start", [&](void*) {
|
|
fault_fs->IngestDataCorruptionBeforeWrite();
|
|
});
|
|
ASSERT_OK(Put("key7", "value7"));
|
|
ASSERT_OK(Put("key8", "value8"));
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
ASSERT_OK(Flush());
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
|
|
Destroy(options);
|
|
}
|
|
|
|
TEST_F(DBFlushTest, FlushWithChecksumHandoffManifest1) {
|
|
if (mem_env_ || encrypted_env_) {
|
|
ROCKSDB_GTEST_SKIP("Test requires non-mem or non-encrypted environment");
|
|
return;
|
|
}
|
|
std::shared_ptr<FaultInjectionTestFS> fault_fs(
|
|
new FaultInjectionTestFS(FileSystem::Default()));
|
|
std::unique_ptr<Env> fault_fs_env(NewCompositeEnv(fault_fs));
|
|
Options options = CurrentOptions();
|
|
options.write_buffer_size = 100;
|
|
options.max_write_buffer_number = 4;
|
|
options.min_write_buffer_number_to_merge = 3;
|
|
options.disable_auto_compactions = true;
|
|
options.env = fault_fs_env.get();
|
|
options.checksum_handoff_file_types.Add(FileType::kDescriptorFile);
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kCRC32c);
|
|
Reopen(options);
|
|
|
|
ASSERT_OK(Put("key1", "value1"));
|
|
ASSERT_OK(Put("key2", "value2"));
|
|
ASSERT_OK(Flush());
|
|
|
|
// The hash does not match, write fails
|
|
// fault_fs->SetChecksumHandoffFuncType(ChecksumType::kxxHash);
|
|
// Since the file system returns IOStatus::Corruption, it is mapped to
|
|
// kFatalError error.
|
|
ASSERT_OK(Put("key3", "value3"));
|
|
SyncPoint::GetInstance()->SetCallBack(
|
|
"VersionSet::LogAndApply:WriteManifest", [&](void*) {
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kxxHash);
|
|
});
|
|
ASSERT_OK(Put("key3", "value3"));
|
|
ASSERT_OK(Put("key4", "value4"));
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
Status s = Flush();
|
|
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kFatalError);
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
Destroy(options);
|
|
}
|
|
|
|
TEST_F(DBFlushTest, FlushWithChecksumHandoffManifest2) {
|
|
if (mem_env_ || encrypted_env_) {
|
|
ROCKSDB_GTEST_SKIP("Test requires non-mem or non-encrypted environment");
|
|
return;
|
|
}
|
|
std::shared_ptr<FaultInjectionTestFS> fault_fs(
|
|
new FaultInjectionTestFS(FileSystem::Default()));
|
|
std::unique_ptr<Env> fault_fs_env(NewCompositeEnv(fault_fs));
|
|
Options options = CurrentOptions();
|
|
options.write_buffer_size = 100;
|
|
options.max_write_buffer_number = 4;
|
|
options.min_write_buffer_number_to_merge = 3;
|
|
options.disable_auto_compactions = true;
|
|
options.env = fault_fs_env.get();
|
|
options.checksum_handoff_file_types.Add(FileType::kDescriptorFile);
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kNoChecksum);
|
|
Reopen(options);
|
|
// The file system does not support checksum handoff. The check
|
|
// will be ignored.
|
|
ASSERT_OK(Put("key5", "value5"));
|
|
ASSERT_OK(Put("key6", "value6"));
|
|
ASSERT_OK(Flush());
|
|
|
|
// Each write will be similated as corrupted.
|
|
// Since the file system returns IOStatus::Corruption, it is mapped to
|
|
// kFatalError error.
|
|
fault_fs->SetChecksumHandoffFuncType(ChecksumType::kCRC32c);
|
|
SyncPoint::GetInstance()->SetCallBack(
|
|
"VersionSet::LogAndApply:WriteManifest",
|
|
[&](void*) { fault_fs->IngestDataCorruptionBeforeWrite(); });
|
|
ASSERT_OK(Put("key7", "value7"));
|
|
ASSERT_OK(Put("key8", "value8"));
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
Status s = Flush();
|
|
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kFatalError);
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
|
|
Destroy(options);
|
|
}
|
|
|
|
class DBFlushTestBlobError : public DBFlushTest,
|
|
public testing::WithParamInterface<std::string> {
|
|
public:
|
|
DBFlushTestBlobError() : sync_point_(GetParam()) {}
|
|
|
|
std::string sync_point_;
|
|
};
|
|
|
|
INSTANTIATE_TEST_CASE_P(DBFlushTestBlobError, DBFlushTestBlobError,
|
|
::testing::ValuesIn(std::vector<std::string>{
|
|
"BlobFileBuilder::WriteBlobToFile:AddRecord",
|
|
"BlobFileBuilder::WriteBlobToFile:AppendFooter"}));
|
|
|
|
TEST_P(DBFlushTestBlobError, FlushError) {
|
|
Options options;
|
|
options.enable_blob_files = true;
|
|
options.disable_auto_compactions = true;
|
|
options.env = env_;
|
|
|
|
Reopen(options);
|
|
|
|
ASSERT_OK(Put("key", "blob"));
|
|
|
|
SyncPoint::GetInstance()->SetCallBack(sync_point_, [this](void* arg) {
|
|
Status* const s = static_cast<Status*>(arg);
|
|
assert(s);
|
|
|
|
(*s) = Status::IOError(sync_point_);
|
|
});
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
ASSERT_NOK(Flush());
|
|
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
SyncPoint::GetInstance()->ClearAllCallBacks();
|
|
|
|
VersionSet* const versions = dbfull()->TEST_GetVersionSet();
|
|
assert(versions);
|
|
|
|
ColumnFamilyData* const cfd = versions->GetColumnFamilySet()->GetDefault();
|
|
assert(cfd);
|
|
|
|
Version* const current = cfd->current();
|
|
assert(current);
|
|
|
|
const VersionStorageInfo* const storage_info = current->storage_info();
|
|
assert(storage_info);
|
|
|
|
const auto& l0_files = storage_info->LevelFiles(0);
|
|
ASSERT_TRUE(l0_files.empty());
|
|
|
|
const auto& blob_files = storage_info->GetBlobFiles();
|
|
ASSERT_TRUE(blob_files.empty());
|
|
|
|
// Make sure the files generated by the failed job have been deleted
|
|
std::vector<std::string> files;
|
|
ASSERT_OK(env_->GetChildren(dbname_, &files));
|
|
for (const auto& file : files) {
|
|
uint64_t number = 0;
|
|
FileType type = kTableFile;
|
|
|
|
if (!ParseFileName(file, &number, &type)) {
|
|
continue;
|
|
}
|
|
|
|
ASSERT_NE(type, kTableFile);
|
|
ASSERT_NE(type, kBlobFile);
|
|
}
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
const InternalStats* const internal_stats = cfd->internal_stats();
|
|
assert(internal_stats);
|
|
|
|
const auto& compaction_stats = internal_stats->TEST_GetCompactionStats();
|
|
ASSERT_FALSE(compaction_stats.empty());
|
|
|
|
if (sync_point_ == "BlobFileBuilder::WriteBlobToFile:AddRecord") {
|
|
ASSERT_EQ(compaction_stats[0].bytes_written, 0);
|
|
ASSERT_EQ(compaction_stats[0].bytes_written_blob, 0);
|
|
ASSERT_EQ(compaction_stats[0].num_output_files, 0);
|
|
ASSERT_EQ(compaction_stats[0].num_output_files_blob, 0);
|
|
} else {
|
|
// SST file writing succeeded; blob file writing failed (during Finish)
|
|
ASSERT_GT(compaction_stats[0].bytes_written, 0);
|
|
ASSERT_EQ(compaction_stats[0].bytes_written_blob, 0);
|
|
ASSERT_EQ(compaction_stats[0].num_output_files, 1);
|
|
ASSERT_EQ(compaction_stats[0].num_output_files_blob, 0);
|
|
}
|
|
|
|
const uint64_t* const cf_stats_value = internal_stats->TEST_GetCFStatsValue();
|
|
ASSERT_EQ(cf_stats_value[InternalStats::BYTES_FLUSHED],
|
|
compaction_stats[0].bytes_written +
|
|
compaction_stats[0].bytes_written_blob);
|
|
#endif // ROCKSDB_LITE
|
|
}
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
TEST_P(DBAtomicFlushTest, ManualFlushUnder2PC) {
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.allow_2pc = true;
|
|
options.atomic_flush = GetParam();
|
|
// 64MB so that memtable flush won't be trigger by the small writes.
|
|
options.write_buffer_size = (static_cast<size_t>(64) << 20);
|
|
|
|
// Destroy the DB to recreate as a TransactionDB.
|
|
Close();
|
|
Destroy(options, true);
|
|
|
|
// Create a TransactionDB.
|
|
TransactionDB* txn_db = nullptr;
|
|
TransactionDBOptions txn_db_opts;
|
|
txn_db_opts.write_policy = TxnDBWritePolicy::WRITE_COMMITTED;
|
|
ASSERT_OK(TransactionDB::Open(options, txn_db_opts, dbname_, &txn_db));
|
|
ASSERT_NE(txn_db, nullptr);
|
|
db_ = txn_db;
|
|
|
|
// Create two more columns other than default CF.
|
|
std::vector<std::string> cfs = {"puppy", "kitty"};
|
|
CreateColumnFamilies(cfs, options);
|
|
ASSERT_EQ(handles_.size(), 2);
|
|
ASSERT_EQ(handles_[0]->GetName(), cfs[0]);
|
|
ASSERT_EQ(handles_[1]->GetName(), cfs[1]);
|
|
const size_t kNumCfToFlush = options.atomic_flush ? 2 : 1;
|
|
|
|
WriteOptions wopts;
|
|
TransactionOptions txn_opts;
|
|
// txn1 only prepare, but does not commit.
|
|
// The WAL containing the prepared but uncommitted data must be kept.
|
|
Transaction* txn1 = txn_db->BeginTransaction(wopts, txn_opts, nullptr);
|
|
// txn2 not only prepare, but also commit.
|
|
Transaction* txn2 = txn_db->BeginTransaction(wopts, txn_opts, nullptr);
|
|
ASSERT_NE(txn1, nullptr);
|
|
ASSERT_NE(txn2, nullptr);
|
|
for (size_t i = 0; i < kNumCfToFlush; i++) {
|
|
ASSERT_OK(txn1->Put(handles_[i], "k1", "v1"));
|
|
ASSERT_OK(txn2->Put(handles_[i], "k2", "v2"));
|
|
}
|
|
// A txn must be named before prepare.
|
|
ASSERT_OK(txn1->SetName("txn1"));
|
|
ASSERT_OK(txn2->SetName("txn2"));
|
|
// Prepare writes to WAL, but not to memtable. (WriteCommitted)
|
|
ASSERT_OK(txn1->Prepare());
|
|
ASSERT_OK(txn2->Prepare());
|
|
// Commit writes to memtable.
|
|
ASSERT_OK(txn2->Commit());
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
// There are still data in memtable not flushed.
|
|
// But since data is small enough to reside in the active memtable,
|
|
// there are no immutable memtable.
|
|
for (size_t i = 0; i < kNumCfToFlush; i++) {
|
|
auto cfh = static_cast<ColumnFamilyHandleImpl*>(handles_[i]);
|
|
ASSERT_EQ(0, cfh->cfd()->imm()->NumNotFlushed());
|
|
ASSERT_FALSE(cfh->cfd()->mem()->IsEmpty());
|
|
}
|
|
|
|
// Atomic flush memtables,
|
|
// the min log with prepared data should be written to MANIFEST.
|
|
std::vector<ColumnFamilyHandle*> cfs_to_flush(kNumCfToFlush);
|
|
for (size_t i = 0; i < kNumCfToFlush; i++) {
|
|
cfs_to_flush[i] = handles_[i];
|
|
}
|
|
ASSERT_OK(txn_db->Flush(FlushOptions(), cfs_to_flush));
|
|
|
|
// There are no remaining data in memtable after flush.
|
|
for (size_t i = 0; i < kNumCfToFlush; i++) {
|
|
auto cfh = static_cast<ColumnFamilyHandleImpl*>(handles_[i]);
|
|
ASSERT_EQ(0, cfh->cfd()->imm()->NumNotFlushed());
|
|
ASSERT_TRUE(cfh->cfd()->mem()->IsEmpty());
|
|
ASSERT_EQ(cfh->cfd()->GetFlushReason(), FlushReason::kManualFlush);
|
|
}
|
|
|
|
// The recovered min log number with prepared data should be non-zero.
|
|
// In 2pc mode, MinLogNumberToKeep returns the
|
|
// VersionSet::min_log_number_to_keep_2pc recovered from MANIFEST, if it's 0,
|
|
// it means atomic flush didn't write the min_log_number_to_keep to MANIFEST.
|
|
cfs.push_back(kDefaultColumnFamilyName);
|
|
ASSERT_OK(TryReopenWithColumnFamilies(cfs, options));
|
|
DBImpl* db_impl = reinterpret_cast<DBImpl*>(db_);
|
|
ASSERT_TRUE(db_impl->allow_2pc());
|
|
ASSERT_NE(db_impl->MinLogNumberToKeep(), 0);
|
|
}
|
|
#endif // ROCKSDB_LITE
|
|
|
|
TEST_P(DBAtomicFlushTest, ManualAtomicFlush) {
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.atomic_flush = GetParam();
|
|
options.write_buffer_size = (static_cast<size_t>(64) << 20);
|
|
|
|
CreateAndReopenWithCF({"pikachu", "eevee"}, options);
|
|
size_t num_cfs = handles_.size();
|
|
ASSERT_EQ(3, num_cfs);
|
|
WriteOptions wopts;
|
|
wopts.disableWAL = true;
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
ASSERT_OK(Put(static_cast<int>(i) /*cf*/, "key", "value", wopts));
|
|
}
|
|
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
auto cfh = static_cast<ColumnFamilyHandleImpl*>(handles_[i]);
|
|
ASSERT_EQ(0, cfh->cfd()->imm()->NumNotFlushed());
|
|
ASSERT_FALSE(cfh->cfd()->mem()->IsEmpty());
|
|
}
|
|
|
|
std::vector<int> cf_ids;
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
cf_ids.emplace_back(static_cast<int>(i));
|
|
}
|
|
ASSERT_OK(Flush(cf_ids));
|
|
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
auto cfh = static_cast<ColumnFamilyHandleImpl*>(handles_[i]);
|
|
ASSERT_EQ(cfh->cfd()->GetFlushReason(), FlushReason::kManualFlush);
|
|
ASSERT_EQ(0, cfh->cfd()->imm()->NumNotFlushed());
|
|
ASSERT_TRUE(cfh->cfd()->mem()->IsEmpty());
|
|
}
|
|
}
|
|
|
|
TEST_P(DBAtomicFlushTest, PrecomputeMinLogNumberToKeepNon2PC) {
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.atomic_flush = GetParam();
|
|
options.write_buffer_size = (static_cast<size_t>(64) << 20);
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
|
|
const size_t num_cfs = handles_.size();
|
|
ASSERT_EQ(num_cfs, 2);
|
|
WriteOptions wopts;
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
ASSERT_OK(Put(static_cast<int>(i) /*cf*/, "key", "value", wopts));
|
|
}
|
|
|
|
{
|
|
// Flush the default CF only.
|
|
std::vector<int> cf_ids{0};
|
|
ASSERT_OK(Flush(cf_ids));
|
|
|
|
autovector<ColumnFamilyData*> flushed_cfds;
|
|
autovector<autovector<VersionEdit*>> flush_edits;
|
|
auto flushed_cfh = static_cast<ColumnFamilyHandleImpl*>(handles_[0]);
|
|
flushed_cfds.push_back(flushed_cfh->cfd());
|
|
flush_edits.push_back({});
|
|
auto unflushed_cfh = static_cast<ColumnFamilyHandleImpl*>(handles_[1]);
|
|
|
|
ASSERT_EQ(PrecomputeMinLogNumberToKeepNon2PC(dbfull()->TEST_GetVersionSet(),
|
|
flushed_cfds, flush_edits),
|
|
unflushed_cfh->cfd()->GetLogNumber());
|
|
}
|
|
|
|
{
|
|
// Flush all CFs.
|
|
std::vector<int> cf_ids;
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
cf_ids.emplace_back(static_cast<int>(i));
|
|
}
|
|
ASSERT_OK(Flush(cf_ids));
|
|
uint64_t log_num_after_flush = dbfull()->TEST_GetCurrentLogNumber();
|
|
|
|
uint64_t min_log_number_to_keep = port::kMaxUint64;
|
|
autovector<ColumnFamilyData*> flushed_cfds;
|
|
autovector<autovector<VersionEdit*>> flush_edits;
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
auto cfh = static_cast<ColumnFamilyHandleImpl*>(handles_[i]);
|
|
flushed_cfds.push_back(cfh->cfd());
|
|
flush_edits.push_back({});
|
|
min_log_number_to_keep =
|
|
std::min(min_log_number_to_keep, cfh->cfd()->GetLogNumber());
|
|
}
|
|
ASSERT_EQ(min_log_number_to_keep, log_num_after_flush);
|
|
ASSERT_EQ(PrecomputeMinLogNumberToKeepNon2PC(dbfull()->TEST_GetVersionSet(),
|
|
flushed_cfds, flush_edits),
|
|
min_log_number_to_keep);
|
|
}
|
|
}
|
|
|
|
TEST_P(DBAtomicFlushTest, AtomicFlushTriggeredByMemTableFull) {
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.atomic_flush = GetParam();
|
|
// 4KB so that we can easily trigger auto flush.
|
|
options.write_buffer_size = 4096;
|
|
|
|
SyncPoint::GetInstance()->LoadDependency(
|
|
{{"DBImpl::BackgroundCallFlush:FlushFinish:0",
|
|
"DBAtomicFlushTest::AtomicFlushTriggeredByMemTableFull:BeforeCheck"}});
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
CreateAndReopenWithCF({"pikachu", "eevee"}, options);
|
|
size_t num_cfs = handles_.size();
|
|
ASSERT_EQ(3, num_cfs);
|
|
WriteOptions wopts;
|
|
wopts.disableWAL = true;
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
ASSERT_OK(Put(static_cast<int>(i) /*cf*/, "key", "value", wopts));
|
|
}
|
|
// Keep writing to one of them column families to trigger auto flush.
|
|
for (int i = 0; i != 4000; ++i) {
|
|
ASSERT_OK(Put(static_cast<int>(num_cfs) - 1 /*cf*/,
|
|
"key" + std::to_string(i), "value" + std::to_string(i),
|
|
wopts));
|
|
}
|
|
|
|
TEST_SYNC_POINT(
|
|
"DBAtomicFlushTest::AtomicFlushTriggeredByMemTableFull:BeforeCheck");
|
|
if (options.atomic_flush) {
|
|
for (size_t i = 0; i + 1 != num_cfs; ++i) {
|
|
auto cfh = static_cast<ColumnFamilyHandleImpl*>(handles_[i]);
|
|
ASSERT_EQ(0, cfh->cfd()->imm()->NumNotFlushed());
|
|
ASSERT_TRUE(cfh->cfd()->mem()->IsEmpty());
|
|
}
|
|
} else {
|
|
for (size_t i = 0; i + 1 != num_cfs; ++i) {
|
|
auto cfh = static_cast<ColumnFamilyHandleImpl*>(handles_[i]);
|
|
ASSERT_EQ(0, cfh->cfd()->imm()->NumNotFlushed());
|
|
ASSERT_FALSE(cfh->cfd()->mem()->IsEmpty());
|
|
}
|
|
}
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
}
|
|
|
|
TEST_P(DBAtomicFlushTest, AtomicFlushRollbackSomeJobs) {
|
|
bool atomic_flush = GetParam();
|
|
if (!atomic_flush) {
|
|
return;
|
|
}
|
|
std::unique_ptr<FaultInjectionTestEnv> fault_injection_env(
|
|
new FaultInjectionTestEnv(env_));
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.atomic_flush = atomic_flush;
|
|
options.env = fault_injection_env.get();
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
SyncPoint::GetInstance()->LoadDependency(
|
|
{{"DBImpl::AtomicFlushMemTablesToOutputFiles:SomeFlushJobsComplete:1",
|
|
"DBAtomicFlushTest::AtomicFlushRollbackSomeJobs:1"},
|
|
{"DBAtomicFlushTest::AtomicFlushRollbackSomeJobs:2",
|
|
"DBImpl::AtomicFlushMemTablesToOutputFiles:SomeFlushJobsComplete:2"}});
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
CreateAndReopenWithCF({"pikachu", "eevee"}, options);
|
|
size_t num_cfs = handles_.size();
|
|
ASSERT_EQ(3, num_cfs);
|
|
WriteOptions wopts;
|
|
wopts.disableWAL = true;
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
int cf_id = static_cast<int>(i);
|
|
ASSERT_OK(Put(cf_id, "key", "value", wopts));
|
|
}
|
|
FlushOptions flush_opts;
|
|
flush_opts.wait = false;
|
|
ASSERT_OK(dbfull()->Flush(flush_opts, handles_));
|
|
TEST_SYNC_POINT("DBAtomicFlushTest::AtomicFlushRollbackSomeJobs:1");
|
|
fault_injection_env->SetFilesystemActive(false);
|
|
TEST_SYNC_POINT("DBAtomicFlushTest::AtomicFlushRollbackSomeJobs:2");
|
|
for (auto* cfh : handles_) {
|
|
// Returns the IO error happend during flush.
|
|
ASSERT_NOK(dbfull()->TEST_WaitForFlushMemTable(cfh));
|
|
}
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
auto cfh = static_cast<ColumnFamilyHandleImpl*>(handles_[i]);
|
|
ASSERT_EQ(1, cfh->cfd()->imm()->NumNotFlushed());
|
|
ASSERT_TRUE(cfh->cfd()->mem()->IsEmpty());
|
|
}
|
|
fault_injection_env->SetFilesystemActive(true);
|
|
Destroy(options);
|
|
}
|
|
|
|
TEST_P(DBAtomicFlushTest, FlushMultipleCFs_DropSomeBeforeRequestFlush) {
|
|
bool atomic_flush = GetParam();
|
|
if (!atomic_flush) {
|
|
return;
|
|
}
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.atomic_flush = atomic_flush;
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
SyncPoint::GetInstance()->ClearAllCallBacks();
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
CreateAndReopenWithCF({"pikachu", "eevee"}, options);
|
|
size_t num_cfs = handles_.size();
|
|
ASSERT_EQ(3, num_cfs);
|
|
WriteOptions wopts;
|
|
wopts.disableWAL = true;
|
|
std::vector<int> cf_ids;
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
int cf_id = static_cast<int>(i);
|
|
ASSERT_OK(Put(cf_id, "key", "value", wopts));
|
|
cf_ids.push_back(cf_id);
|
|
}
|
|
ASSERT_OK(dbfull()->DropColumnFamily(handles_[1]));
|
|
ASSERT_TRUE(Flush(cf_ids).IsColumnFamilyDropped());
|
|
Destroy(options);
|
|
}
|
|
|
|
TEST_P(DBAtomicFlushTest,
|
|
FlushMultipleCFs_DropSomeAfterScheduleFlushBeforeFlushJobRun) {
|
|
bool atomic_flush = GetParam();
|
|
if (!atomic_flush) {
|
|
return;
|
|
}
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.atomic_flush = atomic_flush;
|
|
|
|
CreateAndReopenWithCF({"pikachu", "eevee"}, options);
|
|
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
SyncPoint::GetInstance()->ClearAllCallBacks();
|
|
SyncPoint::GetInstance()->LoadDependency(
|
|
{{"DBImpl::AtomicFlushMemTables:AfterScheduleFlush",
|
|
"DBAtomicFlushTest::BeforeDropCF"},
|
|
{"DBAtomicFlushTest::AfterDropCF",
|
|
"DBImpl::BackgroundCallFlush:start"}});
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
size_t num_cfs = handles_.size();
|
|
ASSERT_EQ(3, num_cfs);
|
|
WriteOptions wopts;
|
|
wopts.disableWAL = true;
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
int cf_id = static_cast<int>(i);
|
|
ASSERT_OK(Put(cf_id, "key", "value", wopts));
|
|
}
|
|
port::Thread user_thread([&]() {
|
|
TEST_SYNC_POINT("DBAtomicFlushTest::BeforeDropCF");
|
|
ASSERT_OK(dbfull()->DropColumnFamily(handles_[1]));
|
|
TEST_SYNC_POINT("DBAtomicFlushTest::AfterDropCF");
|
|
});
|
|
FlushOptions flush_opts;
|
|
flush_opts.wait = true;
|
|
ASSERT_OK(dbfull()->Flush(flush_opts, handles_));
|
|
user_thread.join();
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
int cf_id = static_cast<int>(i);
|
|
ASSERT_EQ("value", Get(cf_id, "key"));
|
|
}
|
|
|
|
ReopenWithColumnFamilies({kDefaultColumnFamilyName, "eevee"}, options);
|
|
num_cfs = handles_.size();
|
|
ASSERT_EQ(2, num_cfs);
|
|
for (size_t i = 0; i != num_cfs; ++i) {
|
|
int cf_id = static_cast<int>(i);
|
|
ASSERT_EQ("value", Get(cf_id, "key"));
|
|
}
|
|
Destroy(options);
|
|
}
|
|
|
|
TEST_P(DBAtomicFlushTest, TriggerFlushAndClose) {
|
|
bool atomic_flush = GetParam();
|
|
if (!atomic_flush) {
|
|
return;
|
|
}
|
|
const int kNumKeysTriggerFlush = 4;
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.atomic_flush = atomic_flush;
|
|
options.memtable_factory.reset(
|
|
new SpecialSkipListFactory(kNumKeysTriggerFlush));
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
|
|
for (int i = 0; i != kNumKeysTriggerFlush; ++i) {
|
|
ASSERT_OK(Put(0, "key" + std::to_string(i), "value" + std::to_string(i)));
|
|
}
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
SyncPoint::GetInstance()->ClearAllCallBacks();
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
ASSERT_OK(Put(0, "key", "value"));
|
|
Close();
|
|
|
|
ReopenWithColumnFamilies({kDefaultColumnFamilyName, "pikachu"}, options);
|
|
ASSERT_EQ("value", Get(0, "key"));
|
|
}
|
|
|
|
TEST_P(DBAtomicFlushTest, PickMemtablesRaceWithBackgroundFlush) {
|
|
bool atomic_flush = GetParam();
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.atomic_flush = atomic_flush;
|
|
options.max_write_buffer_number = 4;
|
|
// Set min_write_buffer_number_to_merge to be greater than 1, so that
|
|
// a column family with one memtable in the imm will not cause IsFlushPending
|
|
// to return true when flush_requested_ is false.
|
|
options.min_write_buffer_number_to_merge = 2;
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
ASSERT_EQ(2, handles_.size());
|
|
ASSERT_OK(dbfull()->PauseBackgroundWork());
|
|
ASSERT_OK(Put(0, "key00", "value00"));
|
|
ASSERT_OK(Put(1, "key10", "value10"));
|
|
FlushOptions flush_opts;
|
|
flush_opts.wait = false;
|
|
ASSERT_OK(dbfull()->Flush(flush_opts, handles_));
|
|
ASSERT_OK(Put(0, "key01", "value01"));
|
|
// Since max_write_buffer_number is 4, the following flush won't cause write
|
|
// stall.
|
|
ASSERT_OK(dbfull()->Flush(flush_opts));
|
|
ASSERT_OK(dbfull()->DropColumnFamily(handles_[1]));
|
|
ASSERT_OK(dbfull()->DestroyColumnFamilyHandle(handles_[1]));
|
|
handles_[1] = nullptr;
|
|
ASSERT_OK(dbfull()->ContinueBackgroundWork());
|
|
ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable(handles_[0]));
|
|
delete handles_[0];
|
|
handles_.clear();
|
|
}
|
|
|
|
TEST_P(DBAtomicFlushTest, CFDropRaceWithWaitForFlushMemTables) {
|
|
bool atomic_flush = GetParam();
|
|
if (!atomic_flush) {
|
|
return;
|
|
}
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.atomic_flush = atomic_flush;
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
SyncPoint::GetInstance()->LoadDependency(
|
|
{{"DBImpl::AtomicFlushMemTables:AfterScheduleFlush",
|
|
"DBAtomicFlushTest::CFDropRaceWithWaitForFlushMemTables:BeforeDrop"},
|
|
{"DBAtomicFlushTest::CFDropRaceWithWaitForFlushMemTables:AfterFree",
|
|
"DBImpl::BackgroundCallFlush:start"},
|
|
{"DBImpl::BackgroundCallFlush:start",
|
|
"DBImpl::AtomicFlushMemTables:BeforeWaitForBgFlush"}});
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
ASSERT_EQ(2, handles_.size());
|
|
ASSERT_OK(Put(0, "key", "value"));
|
|
ASSERT_OK(Put(1, "key", "value"));
|
|
auto* cfd_default =
|
|
static_cast<ColumnFamilyHandleImpl*>(dbfull()->DefaultColumnFamily())
|
|
->cfd();
|
|
auto* cfd_pikachu = static_cast<ColumnFamilyHandleImpl*>(handles_[1])->cfd();
|
|
port::Thread drop_cf_thr([&]() {
|
|
TEST_SYNC_POINT(
|
|
"DBAtomicFlushTest::CFDropRaceWithWaitForFlushMemTables:BeforeDrop");
|
|
ASSERT_OK(dbfull()->DropColumnFamily(handles_[1]));
|
|
delete handles_[1];
|
|
handles_.resize(1);
|
|
TEST_SYNC_POINT(
|
|
"DBAtomicFlushTest::CFDropRaceWithWaitForFlushMemTables:AfterFree");
|
|
});
|
|
FlushOptions flush_opts;
|
|
flush_opts.allow_write_stall = true;
|
|
ASSERT_OK(dbfull()->TEST_AtomicFlushMemTables({cfd_default, cfd_pikachu},
|
|
flush_opts));
|
|
drop_cf_thr.join();
|
|
Close();
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
}
|
|
|
|
TEST_P(DBAtomicFlushTest, RollbackAfterFailToInstallResults) {
|
|
bool atomic_flush = GetParam();
|
|
if (!atomic_flush) {
|
|
return;
|
|
}
|
|
auto fault_injection_env = std::make_shared<FaultInjectionTestEnv>(env_);
|
|
Options options = CurrentOptions();
|
|
options.env = fault_injection_env.get();
|
|
options.create_if_missing = true;
|
|
options.atomic_flush = atomic_flush;
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
ASSERT_EQ(2, handles_.size());
|
|
for (size_t cf = 0; cf < handles_.size(); ++cf) {
|
|
ASSERT_OK(Put(static_cast<int>(cf), "a", "value"));
|
|
}
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
SyncPoint::GetInstance()->ClearAllCallBacks();
|
|
SyncPoint::GetInstance()->SetCallBack(
|
|
"VersionSet::ProcessManifestWrites:BeforeWriteLastVersionEdit:0",
|
|
[&](void* /*arg*/) { fault_injection_env->SetFilesystemActive(false); });
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
FlushOptions flush_opts;
|
|
Status s = db_->Flush(flush_opts, handles_);
|
|
ASSERT_NOK(s);
|
|
fault_injection_env->SetFilesystemActive(true);
|
|
Close();
|
|
SyncPoint::GetInstance()->ClearAllCallBacks();
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(DBFlushDirectIOTest, DBFlushDirectIOTest,
|
|
testing::Bool());
|
|
|
|
INSTANTIATE_TEST_CASE_P(DBAtomicFlushTest, DBAtomicFlushTest, testing::Bool());
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
int main(int argc, char** argv) {
|
|
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|