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rocksdb/monitoring/stats_history_test.cc
mrambacher f35f7f2704 Fix many tests to run with MEM_ENV and ENCRYPTED_ENV; Introduce a MemoryFileSystem class (#7566) 
Summary:
This PR does a few things:

1.  The MockFileSystem class was split out from the MockEnv.  This change would theoretically allow a MockFileSystem to be used by other Environments as well (if we created a means of constructing one).  The MockFileSystem implements a FileSystem in its entirety and does not rely on any Wrapper implementation.

2.  Make the RocksDB test suite work when MOCK_ENV=1 and ENCRYPTED_ENV=1 are set.  To accomplish this, a few things were needed:
- The tests that tried to use the "wrong" environment (Env::Default() instead of env_) were updated
- The MockFileSystem was changed to support the features it was missing or mishandled (such as recursively deleting files in a directory or supporting renaming of a directory).

3.  Updated the test framework to have a ROCKSDB_GTEST_SKIP macro.  This can be used to flag tests that are skipped.  Currently, this defaults to doing nothing (marks the test as SUCCESS) but will mark the tests as SKIPPED when RocksDB is upgraded to a version of gtest that supports this (gtest-1.10).

I have run a full "make check" with MEM_ENV, ENCRYPTED_ENV,  both, and neither under both MacOS and RedHat.  A few tests were disabled/skipped for the MEM/ENCRYPTED cases.  The error_handler_fs_test fails/hangs for MEM_ENV (presumably a timing problem) and I will introduce another PR/issue to track that problem.  (I will also push a change to disable those tests soon).  There is one more test in DBTest2 that also fails which I need to investigate or skip before this PR is merged.

Theoretically, this PR should also allow the test suite to run against an Env loaded from the registry, though I do not have one to try it with currently.

Finally, once this is accepted, it would be nice if there was a CircleCI job to run these tests on a checkin so this effort does not become stale.  I do not know how to do that, so if someone could write that job, it would be appreciated :)

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7566

Reviewed By: zhichao-cao

Differential Revision: D24408980

Pulled By: jay-zhuang

fbshipit-source-id: 911b1554a4d0da06fd51feca0c090a4abdcb4a5f
2020-10-27 10:33:09 -07:00

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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 "rocksdb/stats_history.h"
#include <limits>
#include <string>
#include <unordered_map>
#include "db/column_family.h"
#include "db/db_impl/db_impl.h"
#include "db/db_test_util.h"
#include "db/periodic_work_scheduler.h"
#include "monitoring/persistent_stats_history.h"
#include "options/options_helper.h"
#include "port/stack_trace.h"
#include "rocksdb/cache.h"
#include "rocksdb/convenience.h"
#include "rocksdb/rate_limiter.h"
#include "test_util/sync_point.h"
#include "test_util/testutil.h"
#include "util/random.h"
namespace ROCKSDB_NAMESPACE {
#ifndef ROCKSDB_LITE
class StatsHistoryTest : public DBTestBase {
public:
StatsHistoryTest()
: DBTestBase("/stats_history_test", /*env_do_fsync=*/true) {
mock_env_.reset(new MockTimeEnv(env_));
}
protected:
std::unique_ptr<MockTimeEnv> mock_env_;
void SetUp() override {
mock_env_->InstallTimedWaitFixCallback();
SyncPoint::GetInstance()->SetCallBack(
"DBImpl::StartPeriodicWorkScheduler:Init", [&](void* arg) {
auto* periodic_work_scheduler_ptr =
reinterpret_cast<PeriodicWorkScheduler**>(arg);
*periodic_work_scheduler_ptr =
PeriodicWorkTestScheduler::Default(mock_env_.get());
});
}
};
TEST_F(StatsHistoryTest, RunStatsDumpPeriodSec) {
constexpr int kPeriodSec = 5;
Options options;
options.create_if_missing = true;
options.stats_dump_period_sec = kPeriodSec;
options.env = mock_env_.get();
int counter = 0;
SyncPoint::GetInstance()->SetCallBack("DBImpl::DumpStats:1",
[&](void* /*arg*/) { counter++; });
Reopen(options);
ASSERT_EQ(5u, dbfull()->GetDBOptions().stats_dump_period_sec);
// Wait for the first stats persist to finish, as the initial delay could be
// different.
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec - 1); });
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
ASSERT_GE(counter, 1);
// Test cancel job through SetOptions
ASSERT_OK(dbfull()->SetDBOptions({{"stats_dump_period_sec", "0"}}));
int old_val = counter;
for (int i = 1; i < 20; ++i) {
mock_env_->MockSleepForSeconds(kPeriodSec);
}
ASSERT_EQ(counter, old_val);
Close();
}
// Test persistent stats background thread scheduling and cancelling
TEST_F(StatsHistoryTest, StatsPersistScheduling) {
constexpr int kPeriodSec = 5;
Options options;
options.create_if_missing = true;
options.stats_persist_period_sec = kPeriodSec;
options.env = mock_env_.get();
int counter = 0;
SyncPoint::GetInstance()->SetCallBack("DBImpl::PersistStats:Entry",
[&](void* /*arg*/) { counter++; });
Reopen(options);
ASSERT_EQ(5u, dbfull()->GetDBOptions().stats_persist_period_sec);
// Wait for the first stats persist to finish, as the initial delay could be
// different.
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec - 1); });
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
ASSERT_GE(counter, 1);
// Test cancel job through SetOptions
ASSERT_OK(dbfull()->SetDBOptions({{"stats_persist_period_sec", "0"}}));
int old_val = counter;
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec * 2); });
ASSERT_EQ(counter, old_val);
Close();
}
// Test enabling persistent stats for the first time
TEST_F(StatsHistoryTest, PersistentStatsFreshInstall) {
constexpr unsigned int kPeriodSec = 5;
Options options;
options.create_if_missing = true;
options.stats_persist_period_sec = 0;
options.env = mock_env_.get();
int counter = 0;
SyncPoint::GetInstance()->SetCallBack("DBImpl::PersistStats:Entry",
[&](void* /*arg*/) { counter++; });
Reopen(options);
ASSERT_OK(dbfull()->SetDBOptions(
{{"stats_persist_period_sec", std::to_string(kPeriodSec)}}));
ASSERT_EQ(kPeriodSec, dbfull()->GetDBOptions().stats_persist_period_sec);
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
ASSERT_GE(counter, 1);
Close();
}
// TODO(Zhongyi): Move persistent stats related tests to a separate file
TEST_F(StatsHistoryTest, GetStatsHistoryInMemory) {
constexpr int kPeriodSec = 5;
Options options;
options.create_if_missing = true;
options.stats_persist_period_sec = kPeriodSec;
options.statistics = CreateDBStatistics();
options.env = mock_env_.get();
CreateColumnFamilies({"pikachu"}, options);
ASSERT_OK(Put("foo", "bar"));
ReopenWithColumnFamilies({"default", "pikachu"}, options);
// make sure the first stats persist to finish
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec - 1); });
// Wait for stats persist to finish
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
std::unique_ptr<StatsHistoryIterator> stats_iter;
ASSERT_OK(db_->GetStatsHistory(0, mock_env_->NowSeconds() + 1, &stats_iter));
ASSERT_TRUE(stats_iter != nullptr);
// disabled stats snapshots
ASSERT_OK(dbfull()->SetDBOptions({{"stats_persist_period_sec", "0"}}));
size_t stats_count = 0;
for (; stats_iter->Valid(); stats_iter->Next()) {
auto stats_map = stats_iter->GetStatsMap();
ASSERT_EQ(stats_iter->GetStatsTime(), mock_env_->NowSeconds());
stats_count += stats_map.size();
}
ASSERT_GT(stats_count, 0);
// Wait a bit and verify no more stats are found
for (int i = 0; i < 10; ++i) {
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(1); });
}
ASSERT_OK(db_->GetStatsHistory(0, mock_env_->NowSeconds(), &stats_iter));
ASSERT_TRUE(stats_iter != nullptr);
size_t stats_count_new = 0;
for (; stats_iter->Valid(); stats_iter->Next()) {
stats_count_new += stats_iter->GetStatsMap().size();
}
ASSERT_EQ(stats_count_new, stats_count);
Close();
}
TEST_F(StatsHistoryTest, InMemoryStatsHistoryPurging) {
constexpr int kPeriodSec = 1;
Options options;
options.create_if_missing = true;
options.statistics = CreateDBStatistics();
options.stats_persist_period_sec = kPeriodSec;
options.env = mock_env_.get();
CreateColumnFamilies({"pikachu"}, options);
ASSERT_OK(Put("foo", "bar"));
ReopenWithColumnFamilies({"default", "pikachu"}, options);
// some random operation to populate statistics
ASSERT_OK(Delete("foo"));
ASSERT_OK(Put("sol", "sol"));
ASSERT_OK(Put("epic", "epic"));
ASSERT_OK(Put("ltd", "ltd"));
ASSERT_EQ("sol", Get("sol"));
ASSERT_EQ("epic", Get("epic"));
ASSERT_EQ("ltd", Get("ltd"));
Iterator* iterator = db_->NewIterator(ReadOptions());
for (iterator->SeekToFirst(); iterator->Valid(); iterator->Next()) {
ASSERT_TRUE(iterator->key() == iterator->value());
}
delete iterator;
ASSERT_OK(Flush());
ASSERT_OK(Delete("sol"));
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
// second round of ops
ASSERT_OK(Put("saigon", "saigon"));
ASSERT_OK(Put("noodle talk", "noodle talk"));
ASSERT_OK(Put("ping bistro", "ping bistro"));
iterator = db_->NewIterator(ReadOptions());
for (iterator->SeekToFirst(); iterator->Valid(); iterator->Next()) {
ASSERT_TRUE(iterator->key() == iterator->value());
}
delete iterator;
ASSERT_OK(Flush());
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
const int kIterations = 10;
for (int i = 0; i < kIterations; ++i) {
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
}
std::unique_ptr<StatsHistoryIterator> stats_iter;
ASSERT_OK(db_->GetStatsHistory(0, mock_env_->NowSeconds() + 1, &stats_iter));
ASSERT_TRUE(stats_iter != nullptr);
size_t stats_count = 0;
int slice_count = 0;
for (; stats_iter->Valid(); stats_iter->Next()) {
slice_count++;
auto stats_map = stats_iter->GetStatsMap();
stats_count += stats_map.size();
}
size_t stats_history_size = dbfull()->TEST_EstimateInMemoryStatsHistorySize();
ASSERT_GE(slice_count, kIterations - 1);
ASSERT_GE(stats_history_size, 13000);
// capping memory cost at 13000 bytes since one slice is around 10000~13000
ASSERT_OK(dbfull()->SetDBOptions({{"stats_history_buffer_size", "13000"}}));
ASSERT_EQ(13000, dbfull()->GetDBOptions().stats_history_buffer_size);
// Wait for stats persist to finish
for (int i = 0; i < kIterations; ++i) {
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
}
ASSERT_OK(db_->GetStatsHistory(0, mock_env_->NowSeconds() + 1, &stats_iter));
ASSERT_TRUE(stats_iter != nullptr);
size_t stats_count_reopen = 0;
slice_count = 0;
for (; stats_iter->Valid(); stats_iter->Next()) {
slice_count++;
auto stats_map = stats_iter->GetStatsMap();
stats_count_reopen += stats_map.size();
}
size_t stats_history_size_reopen =
dbfull()->TEST_EstimateInMemoryStatsHistorySize();
// only one slice can fit under the new stats_history_buffer_size
ASSERT_LT(slice_count, 2);
ASSERT_TRUE(stats_history_size_reopen < 13000 &&
stats_history_size_reopen > 0);
ASSERT_TRUE(stats_count_reopen < stats_count && stats_count_reopen > 0);
Close();
// TODO: may also want to verify stats timestamp to make sure we are purging
// the correct stats snapshot
}
int countkeys(Iterator* iter) {
int count = 0;
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
count++;
}
return count;
}
TEST_F(StatsHistoryTest, GetStatsHistoryFromDisk) {
constexpr int kPeriodSec = 5;
Options options;
options.create_if_missing = true;
options.stats_persist_period_sec = kPeriodSec;
options.statistics = CreateDBStatistics();
options.persist_stats_to_disk = true;
options.env = mock_env_.get();
CreateColumnFamilies({"pikachu"}, options);
ASSERT_OK(Put("foo", "bar"));
ReopenWithColumnFamilies({"default", "pikachu"}, options);
ASSERT_EQ(Get("foo"), "bar");
// Wait for the first stats persist to finish, as the initial delay could be
// different.
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec - 1); });
// Wait for stats persist to finish
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
auto iter =
db_->NewIterator(ReadOptions(), dbfull()->PersistentStatsColumnFamily());
int key_count1 = countkeys(iter);
delete iter;
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
iter =
db_->NewIterator(ReadOptions(), dbfull()->PersistentStatsColumnFamily());
int key_count2 = countkeys(iter);
delete iter;
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
iter =
db_->NewIterator(ReadOptions(), dbfull()->PersistentStatsColumnFamily());
int key_count3 = countkeys(iter);
delete iter;
ASSERT_GE(key_count2, key_count1);
ASSERT_GE(key_count3, key_count2);
ASSERT_EQ(key_count3 - key_count2, key_count2 - key_count1);
std::unique_ptr<StatsHistoryIterator> stats_iter;
ASSERT_OK(db_->GetStatsHistory(0, mock_env_->NowSeconds() + 1, &stats_iter));
ASSERT_TRUE(stats_iter != nullptr);
size_t stats_count = 0;
int slice_count = 0;
int non_zero_count = 0;
for (int i = 2; stats_iter->Valid(); stats_iter->Next(), i++) {
slice_count++;
auto stats_map = stats_iter->GetStatsMap();
ASSERT_EQ(stats_iter->GetStatsTime(), kPeriodSec * i - 1);
for (auto& stat : stats_map) {
if (stat.second != 0) {
non_zero_count++;
}
}
stats_count += stats_map.size();
}
ASSERT_EQ(slice_count, 3);
// 2 extra keys for format version
ASSERT_EQ(stats_count, key_count3 - 2);
// verify reopen will not cause data loss
ReopenWithColumnFamilies({"default", "pikachu"}, options);
ASSERT_OK(db_->GetStatsHistory(0, mock_env_->NowSeconds() + 1, &stats_iter));
ASSERT_TRUE(stats_iter != nullptr);
size_t stats_count_reopen = 0;
int slice_count_reopen = 0;
int non_zero_count_recover = 0;
for (; stats_iter->Valid(); stats_iter->Next()) {
slice_count_reopen++;
auto stats_map = stats_iter->GetStatsMap();
for (auto& stat : stats_map) {
if (stat.second != 0) {
non_zero_count_recover++;
}
}
stats_count_reopen += stats_map.size();
}
ASSERT_EQ(non_zero_count, non_zero_count_recover);
ASSERT_EQ(slice_count, slice_count_reopen);
ASSERT_EQ(stats_count, stats_count_reopen);
Close();
}
// Test persisted stats matches the value found in options.statistics and
// the stats value retains after DB reopen
TEST_F(StatsHistoryTest, PersitentStatsVerifyValue) {
constexpr int kPeriodSec = 5;
Options options;
options.create_if_missing = true;
options.stats_persist_period_sec = kPeriodSec;
options.statistics = CreateDBStatistics();
options.persist_stats_to_disk = true;
std::map<std::string, uint64_t> stats_map_before;
ASSERT_TRUE(options.statistics->getTickerMap(&stats_map_before));
options.env = mock_env_.get();
CreateColumnFamilies({"pikachu"}, options);
ASSERT_OK(Put("foo", "bar"));
ReopenWithColumnFamilies({"default", "pikachu"}, options);
ASSERT_EQ(Get("foo"), "bar");
// Wait for the first stats persist to finish, as the initial delay could be
// different.
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec - 1); });
// Wait for stats persist to finish
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
auto iter =
db_->NewIterator(ReadOptions(), dbfull()->PersistentStatsColumnFamily());
countkeys(iter);
delete iter;
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
iter =
db_->NewIterator(ReadOptions(), dbfull()->PersistentStatsColumnFamily());
countkeys(iter);
delete iter;
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
iter =
db_->NewIterator(ReadOptions(), dbfull()->PersistentStatsColumnFamily());
countkeys(iter);
delete iter;
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
std::map<std::string, uint64_t> stats_map_after;
ASSERT_TRUE(options.statistics->getTickerMap(&stats_map_after));
std::unique_ptr<StatsHistoryIterator> stats_iter;
ASSERT_OK(db_->GetStatsHistory(0, mock_env_->NowSeconds() + 1, &stats_iter));
ASSERT_TRUE(stats_iter != nullptr);
std::string sample = "rocksdb.num.iterator.deleted";
uint64_t recovered_value = 0;
for (int i = 2; stats_iter->Valid(); stats_iter->Next(), ++i) {
auto stats_map = stats_iter->GetStatsMap();
ASSERT_EQ(stats_iter->GetStatsTime(), kPeriodSec * i - 1);
for (const auto& stat : stats_map) {
if (sample.compare(stat.first) == 0) {
recovered_value += stat.second;
}
}
}
ASSERT_EQ(recovered_value, stats_map_after[sample]);
// test stats value retains after recovery
ReopenWithColumnFamilies({"default", "pikachu"}, options);
ASSERT_OK(db_->GetStatsHistory(0, mock_env_->NowSeconds() + 1, &stats_iter));
ASSERT_TRUE(stats_iter != nullptr);
uint64_t new_recovered_value = 0;
for (int i = 2; stats_iter->Valid(); stats_iter->Next(), i++) {
auto stats_map = stats_iter->GetStatsMap();
ASSERT_EQ(stats_iter->GetStatsTime(), kPeriodSec * i - 1);
for (const auto& stat : stats_map) {
if (sample.compare(stat.first) == 0) {
new_recovered_value += stat.second;
}
}
}
ASSERT_EQ(recovered_value, new_recovered_value);
// TODO(Zhongyi): also add test to read raw values from disk and verify
// correctness
Close();
}
// TODO(Zhongyi): add test for different format versions
TEST_F(StatsHistoryTest, PersistentStatsCreateColumnFamilies) {
constexpr int kPeriodSec = 5;
Options options;
options.create_if_missing = true;
options.stats_persist_period_sec = kPeriodSec;
options.statistics = CreateDBStatistics();
options.persist_stats_to_disk = true;
options.env = mock_env_.get();
ASSERT_OK(TryReopen(options));
CreateColumnFamilies({"one", "two", "three"}, options);
ASSERT_OK(Put(1, "foo", "bar"));
ReopenWithColumnFamilies({"default", "one", "two", "three"}, options);
ASSERT_EQ(Get(2, "foo"), "bar");
CreateColumnFamilies({"four"}, options);
ReopenWithColumnFamilies({"default", "one", "two", "three", "four"}, options);
ASSERT_EQ(Get(2, "foo"), "bar");
// make sure the first stats persist to finish
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec - 1); });
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
auto iter =
db_->NewIterator(ReadOptions(), dbfull()->PersistentStatsColumnFamily());
int key_count = countkeys(iter);
delete iter;
ASSERT_GE(key_count, 0);
uint64_t num_write_wal = 0;
std::string sample = "rocksdb.write.wal";
std::unique_ptr<StatsHistoryIterator> stats_iter;
ASSERT_OK(db_->GetStatsHistory(0, mock_env_->NowSeconds(), &stats_iter));
ASSERT_TRUE(stats_iter != nullptr);
for (; stats_iter->Valid(); stats_iter->Next()) {
auto stats_map = stats_iter->GetStatsMap();
for (const auto& stat : stats_map) {
if (sample.compare(stat.first) == 0) {
num_write_wal += stat.second;
}
}
}
stats_iter.reset();
ASSERT_EQ(num_write_wal, 2);
options.persist_stats_to_disk = false;
ReopenWithColumnFamilies({"default", "one", "two", "three", "four"}, options);
int cf_count = 0;
for (auto cfd : *dbfull()->versions_->GetColumnFamilySet()) {
(void)cfd;
cf_count++;
}
// persistent stats cf will be implicitly opened even if
// persist_stats_to_disk is false
ASSERT_EQ(cf_count, 6);
ASSERT_EQ(Get(2, "foo"), "bar");
// attempt to create column family using same name, should fail
ColumnFamilyOptions cf_opts(options);
ColumnFamilyHandle* handle;
ASSERT_NOK(db_->CreateColumnFamily(cf_opts, kPersistentStatsColumnFamilyName,
&handle));
options.persist_stats_to_disk = true;
ReopenWithColumnFamilies({"default", "one", "two", "three", "four"}, options);
ASSERT_NOK(db_->CreateColumnFamily(cf_opts, kPersistentStatsColumnFamilyName,
&handle));
// verify stats is not affected by prior failed CF creation
ASSERT_OK(db_->GetStatsHistory(0, mock_env_->NowSeconds(), &stats_iter));
ASSERT_TRUE(stats_iter != nullptr);
num_write_wal = 0;
for (; stats_iter->Valid(); stats_iter->Next()) {
auto stats_map = stats_iter->GetStatsMap();
for (const auto& stat : stats_map) {
if (sample.compare(stat.first) == 0) {
num_write_wal += stat.second;
}
}
}
ASSERT_EQ(num_write_wal, 2);
Close();
Destroy(options);
}
TEST_F(StatsHistoryTest, PersistentStatsReadOnly) {
ASSERT_OK(Put("bar", "v2"));
Close();
auto options = CurrentOptions();
options.stats_persist_period_sec = 5;
options.persist_stats_to_disk = true;
assert(options.env == env_);
ASSERT_OK(ReadOnlyReopen(options));
ASSERT_EQ("v2", Get("bar"));
Close();
// Reopen and flush memtable.
ASSERT_OK(TryReopen(options));
Flush();
Close();
// Now check keys in read only mode.
ASSERT_OK(ReadOnlyReopen(options));
}
TEST_F(StatsHistoryTest, ForceManualFlushStatsCF) {
constexpr int kPeriodSec = 5;
Options options;
options.create_if_missing = true;
options.write_buffer_size = 1024 * 1024 * 10; // 10 Mb
options.stats_persist_period_sec = kPeriodSec;
options.statistics = CreateDBStatistics();
options.persist_stats_to_disk = true;
options.env = mock_env_.get();
CreateColumnFamilies({"pikachu"}, options);
ReopenWithColumnFamilies({"default", "pikachu"}, options);
// Wait for the first stats persist to finish, as the initial delay could be
// different.
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec - 1); });
ColumnFamilyData* cfd_default =
static_cast<ColumnFamilyHandleImpl*>(dbfull()->DefaultColumnFamily())
->cfd();
ColumnFamilyData* cfd_stats = static_cast<ColumnFamilyHandleImpl*>(
dbfull()->PersistentStatsColumnFamily())
->cfd();
ColumnFamilyData* cfd_test =
static_cast<ColumnFamilyHandleImpl*>(handles_[1])->cfd();
ASSERT_OK(Put("foo", "v0"));
ASSERT_OK(Put("bar", "v0"));
ASSERT_EQ("v0", Get("bar"));
ASSERT_EQ("v0", Get("foo"));
ASSERT_OK(Put(1, "Eevee", "v0"));
ASSERT_EQ("v0", Get(1, "Eevee"));
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
// writing to all three cf, flush default cf
// LogNumbers: default: 14, stats: 4, pikachu: 4
ASSERT_OK(Flush());
ASSERT_EQ(cfd_stats->GetLogNumber(), cfd_test->GetLogNumber());
ASSERT_LT(cfd_stats->GetLogNumber(), cfd_default->GetLogNumber());
ASSERT_OK(Put("foo1", "v1"));
ASSERT_OK(Put("bar1", "v1"));
ASSERT_EQ("v1", Get("bar1"));
ASSERT_EQ("v1", Get("foo1"));
ASSERT_OK(Put(1, "Vaporeon", "v1"));
ASSERT_EQ("v1", Get(1, "Vaporeon"));
// writing to default and test cf, flush test cf
// LogNumbers: default: 14, stats: 16, pikachu: 16
ASSERT_OK(Flush(1));
ASSERT_EQ(cfd_stats->GetLogNumber(), cfd_test->GetLogNumber());
ASSERT_GT(cfd_stats->GetLogNumber(), cfd_default->GetLogNumber());
ASSERT_OK(Put("foo2", "v2"));
ASSERT_OK(Put("bar2", "v2"));
ASSERT_EQ("v2", Get("bar2"));
ASSERT_EQ("v2", Get("foo2"));
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
// writing to default and stats cf, flushing default cf
// LogNumbers: default: 19, stats: 19, pikachu: 19
ASSERT_OK(Flush());
ASSERT_EQ(cfd_stats->GetLogNumber(), cfd_test->GetLogNumber());
ASSERT_EQ(cfd_stats->GetLogNumber(), cfd_default->GetLogNumber());
ASSERT_OK(Put("foo3", "v3"));
ASSERT_OK(Put("bar3", "v3"));
ASSERT_EQ("v3", Get("bar3"));
ASSERT_EQ("v3", Get("foo3"));
ASSERT_OK(Put(1, "Jolteon", "v3"));
ASSERT_EQ("v3", Get(1, "Jolteon"));
dbfull()->TEST_WaitForStatsDumpRun(
[&] { mock_env_->MockSleepForSeconds(kPeriodSec); });
// writing to all three cf, flushing test cf
// LogNumbers: default: 19, stats: 19, pikachu: 22
ASSERT_OK(Flush(1));
ASSERT_LT(cfd_stats->GetLogNumber(), cfd_test->GetLogNumber());
ASSERT_EQ(cfd_stats->GetLogNumber(), cfd_default->GetLogNumber());
Close();
}
#endif // !ROCKSDB_LITE
} // 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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