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db_with_timestamp_basic_test.cc
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db_with_timestamp_basic_test.cc
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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 "db/db_test_util.h"
#include "port/stack_trace.h"
#include "rocksdb/perf_context.h"
#include "rocksdb/utilities/debug.h"
#include "table/block_based/block_based_table_reader.h"
#include "table/block_based/block_builder.h"
#if !defined(ROCKSDB_LITE)
#include "test_util/sync_point.h"
#endif
#include "test_util/testutil.h"
#include "utilities/fault_injection_env.h"
namespace ROCKSDB_NAMESPACE {
class DBBasicTestWithTimestampBase : public DBTestBase {
public:
explicit DBBasicTestWithTimestampBase(const std::string& dbname)
: DBTestBase(dbname, /*env_do_fsync=*/true) {}
protected:
static std::string Key1(uint64_t k) {
std::string ret;
PutFixed64(&ret, k);
std::reverse(ret.begin(), ret.end());
return ret;
}
static std::string KeyWithPrefix(std::string prefix, uint64_t k) {
std::string ret;
PutFixed64(&ret, k);
std::reverse(ret.begin(), ret.end());
return prefix + ret;
}
static std::vector<Slice> ConvertStrToSlice(
std::vector<std::string>& strings) {
std::vector<Slice> ret;
for (const auto& s : strings) {
ret.emplace_back(s);
}
return ret;
}
class TestComparator : public Comparator {
private:
const Comparator* cmp_without_ts_;
public:
explicit TestComparator(size_t ts_sz)
: Comparator(ts_sz), cmp_without_ts_(nullptr) {
cmp_without_ts_ = BytewiseComparator();
}
const char* Name() const override { return "TestComparator"; }
void FindShortSuccessor(std::string*) const override {}
void FindShortestSeparator(std::string*, const Slice&) const override {}
int Compare(const Slice& a, const Slice& b) const override {
int r = CompareWithoutTimestamp(a, b);
if (r != 0 || 0 == timestamp_size()) {
return r;
}
return -CompareTimestamp(
Slice(a.data() + a.size() - timestamp_size(), timestamp_size()),
Slice(b.data() + b.size() - timestamp_size(), timestamp_size()));
}
using Comparator::CompareWithoutTimestamp;
int CompareWithoutTimestamp(const Slice& a, bool a_has_ts, const Slice& b,
bool b_has_ts) const override {
if (a_has_ts) {
assert(a.size() >= timestamp_size());
}
if (b_has_ts) {
assert(b.size() >= timestamp_size());
}
Slice lhs = a_has_ts ? StripTimestampFromUserKey(a, timestamp_size()) : a;
Slice rhs = b_has_ts ? StripTimestampFromUserKey(b, timestamp_size()) : b;
return cmp_without_ts_->Compare(lhs, rhs);
}
int CompareTimestamp(const Slice& ts1, const Slice& ts2) const override {
if (!ts1.data() && !ts2.data()) {
return 0;
} else if (ts1.data() && !ts2.data()) {
return 1;
} else if (!ts1.data() && ts2.data()) {
return -1;
}
assert(ts1.size() == ts2.size());
uint64_t low1 = 0;
uint64_t low2 = 0;
uint64_t high1 = 0;
uint64_t high2 = 0;
const size_t kSize = ts1.size();
std::unique_ptr<char[]> ts1_buf(new char[kSize]);
memcpy(ts1_buf.get(), ts1.data(), ts1.size());
std::unique_ptr<char[]> ts2_buf(new char[kSize]);
memcpy(ts2_buf.get(), ts2.data(), ts2.size());
Slice ts1_copy = Slice(ts1_buf.get(), kSize);
Slice ts2_copy = Slice(ts2_buf.get(), kSize);
auto* ptr1 = const_cast<Slice*>(&ts1_copy);
auto* ptr2 = const_cast<Slice*>(&ts2_copy);
if (!GetFixed64(ptr1, &low1) || !GetFixed64(ptr1, &high1) ||
!GetFixed64(ptr2, &low2) || !GetFixed64(ptr2, &high2)) {
assert(false);
}
if (high1 < high2) {
return -1;
} else if (high1 > high2) {
return 1;
}
if (low1 < low2) {
return -1;
} else if (low1 > low2) {
return 1;
}
return 0;
}
};
std::string Timestamp(uint64_t low, uint64_t high) {
std::string ts;
PutFixed64(&ts, low);
PutFixed64(&ts, high);
return ts;
}
void CheckIterUserEntry(const Iterator* it, const Slice& expected_key,
ValueType expected_value_type,
const Slice& expected_value,
const Slice& expected_ts) const {
ASSERT_TRUE(it->Valid());
ASSERT_OK(it->status());
ASSERT_EQ(expected_key, it->key());
if (kTypeValue == expected_value_type) {
ASSERT_EQ(expected_value, it->value());
}
ASSERT_EQ(expected_ts, it->timestamp());
}
void CheckIterEntry(const Iterator* it, const Slice& expected_ukey,
SequenceNumber expected_seq, ValueType expected_val_type,
const Slice& expected_value, const Slice& expected_ts) {
ASSERT_TRUE(it->Valid());
ASSERT_OK(it->status());
std::string ukey_and_ts;
ukey_and_ts.assign(expected_ukey.data(), expected_ukey.size());
ukey_and_ts.append(expected_ts.data(), expected_ts.size());
ParsedInternalKey parsed_ikey;
ASSERT_OK(
ParseInternalKey(it->key(), &parsed_ikey, true /* log_err_key */));
ASSERT_EQ(ukey_and_ts, parsed_ikey.user_key);
ASSERT_EQ(expected_val_type, parsed_ikey.type);
ASSERT_EQ(expected_seq, parsed_ikey.sequence);
if (expected_val_type == kTypeValue) {
ASSERT_EQ(expected_value, it->value());
}
ASSERT_EQ(expected_ts, it->timestamp());
}
void CheckIterEntry(const Iterator* it, const Slice& expected_ukey,
ValueType expected_val_type, const Slice& expected_value,
const Slice& expected_ts) {
ASSERT_TRUE(it->Valid());
ASSERT_OK(it->status());
std::string ukey_and_ts;
ukey_and_ts.assign(expected_ukey.data(), expected_ukey.size());
ukey_and_ts.append(expected_ts.data(), expected_ts.size());
ParsedInternalKey parsed_ikey;
ASSERT_OK(
ParseInternalKey(it->key(), &parsed_ikey, true /* log_err_key */));
ASSERT_EQ(expected_val_type, parsed_ikey.type);
ASSERT_EQ(Slice(ukey_and_ts), parsed_ikey.user_key);
if (expected_val_type == kTypeValue) {
ASSERT_EQ(expected_value, it->value());
}
ASSERT_EQ(expected_ts, it->timestamp());
}
};
class DBBasicTestWithTimestamp : public DBBasicTestWithTimestampBase {
public:
DBBasicTestWithTimestamp()
: DBBasicTestWithTimestampBase("db_basic_test_with_timestamp") {}
};
TEST_F(DBBasicTestWithTimestamp, SanityChecks) {
Options options = CurrentOptions();
options.env = env_;
options.create_if_missing = true;
options.avoid_flush_during_shutdown = true;
options.merge_operator = MergeOperators::CreateStringAppendTESTOperator();
DestroyAndReopen(options);
Options options1 = CurrentOptions();
options1.env = env_;
options1.comparator = test::BytewiseComparatorWithU64TsWrapper();
options1.merge_operator = MergeOperators::CreateStringAppendTESTOperator();
assert(options1.comparator &&
options1.comparator->timestamp_size() == sizeof(uint64_t));
ColumnFamilyHandle* handle = nullptr;
Status s = db_->CreateColumnFamily(options1, "data", &handle);
ASSERT_OK(s);
std::string dummy_ts(sizeof(uint64_t), '\0');
// Perform timestamp operations on default cf.
ASSERT_TRUE(
db_->Put(WriteOptions(), "key", dummy_ts, "value").IsInvalidArgument());
ASSERT_TRUE(db_->Merge(WriteOptions(), db_->DefaultColumnFamily(), "key",
dummy_ts, "value")
.IsNotSupported());
ASSERT_TRUE(db_->Delete(WriteOptions(), "key", dummy_ts).IsInvalidArgument());
ASSERT_TRUE(
db_->SingleDelete(WriteOptions(), "key", dummy_ts).IsInvalidArgument());
ASSERT_TRUE(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
"begin_key", "end_key", dummy_ts)
.IsNotSupported());
// Perform non-timestamp operations on "data" cf.
ASSERT_TRUE(
db_->Put(WriteOptions(), handle, "key", "value").IsInvalidArgument());
ASSERT_TRUE(db_->Delete(WriteOptions(), handle, "key").IsInvalidArgument());
ASSERT_TRUE(
db_->SingleDelete(WriteOptions(), handle, "key").IsInvalidArgument());
ASSERT_TRUE(
db_->Merge(WriteOptions(), handle, "key", "value").IsInvalidArgument());
ASSERT_TRUE(db_->DeleteRange(WriteOptions(), handle, "begin_key", "end_key")
.IsInvalidArgument());
{
WriteBatch wb;
ASSERT_OK(wb.Put(handle, "key", "value"));
ASSERT_TRUE(db_->Write(WriteOptions(), &wb).IsInvalidArgument());
}
{
WriteBatch wb;
ASSERT_OK(wb.Delete(handle, "key"));
ASSERT_TRUE(db_->Write(WriteOptions(), &wb).IsInvalidArgument());
}
{
WriteBatch wb;
ASSERT_OK(wb.SingleDelete(handle, "key"));
ASSERT_TRUE(db_->Write(WriteOptions(), &wb).IsInvalidArgument());
}
// Perform timestamp operations with timestamps of incorrect size.
const std::string wrong_ts(sizeof(uint32_t), '\0');
ASSERT_TRUE(db_->Put(WriteOptions(), handle, "key", wrong_ts, "value")
.IsInvalidArgument());
ASSERT_TRUE(db_->Merge(WriteOptions(), handle, "key", wrong_ts, "value")
.IsNotSupported());
ASSERT_TRUE(
db_->Delete(WriteOptions(), handle, "key", wrong_ts).IsInvalidArgument());
ASSERT_TRUE(db_->SingleDelete(WriteOptions(), handle, "key", wrong_ts)
.IsInvalidArgument());
ASSERT_TRUE(
db_->DeleteRange(WriteOptions(), handle, "begin_key", "end_key", wrong_ts)
.IsNotSupported());
delete handle;
}
TEST_F(DBBasicTestWithTimestamp, MixedCfs) {
Options options = CurrentOptions();
options.env = env_;
options.create_if_missing = true;
options.avoid_flush_during_shutdown = true;
DestroyAndReopen(options);
Options options1 = CurrentOptions();
options1.env = env_;
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options1.comparator = &test_cmp;
ColumnFamilyHandle* handle = nullptr;
Status s = db_->CreateColumnFamily(options1, "data", &handle);
ASSERT_OK(s);
WriteBatch wb;
ASSERT_OK(wb.Put("a", "value"));
ASSERT_OK(wb.Put(handle, "a", "value"));
{
std::string ts = Timestamp(1, 0);
const auto ts_sz_func = [kTimestampSize, handle](uint32_t cf_id) {
assert(handle);
if (cf_id == 0) {
return static_cast<size_t>(0);
} else if (cf_id == handle->GetID()) {
return kTimestampSize;
} else {
assert(false);
return std::numeric_limits<size_t>::max();
}
};
ASSERT_OK(wb.UpdateTimestamps(ts, ts_sz_func));
ASSERT_OK(db_->Write(WriteOptions(), &wb));
}
const auto verify_db = [this](ColumnFamilyHandle* h, const std::string& key,
const std::string& ts,
const std::string& expected_value) {
ASSERT_EQ(expected_value, Get(key));
Slice read_ts_slice(ts);
ReadOptions read_opts;
read_opts.timestamp = &read_ts_slice;
std::string value;
ASSERT_OK(db_->Get(read_opts, h, key, &value));
ASSERT_EQ(expected_value, value);
};
verify_db(handle, "a", Timestamp(1, 0), "value");
delete handle;
Close();
std::vector<ColumnFamilyDescriptor> cf_descs;
cf_descs.emplace_back(kDefaultColumnFamilyName, options);
cf_descs.emplace_back("data", options1);
options.create_if_missing = false;
s = DB::Open(options, dbname_, cf_descs, &handles_, &db_);
ASSERT_OK(s);
verify_db(handles_[1], "a", Timestamp(1, 0), "value");
Close();
}
TEST_F(DBBasicTestWithTimestamp, CompactRangeWithSpecifiedRange) {
Options options = CurrentOptions();
options.env = env_;
options.create_if_missing = true;
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options.comparator = &test_cmp;
DestroyAndReopen(options);
WriteOptions write_opts;
std::string ts = Timestamp(1, 0);
ASSERT_OK(db_->Put(write_opts, "foo1", ts, "bar"));
ASSERT_OK(Flush());
ASSERT_OK(db_->Put(write_opts, "foo2", ts, "bar"));
ASSERT_OK(Flush());
std::string start_str = "foo";
std::string end_str = "foo2";
Slice start(start_str), end(end_str);
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), &start, &end));
Close();
}
TEST_F(DBBasicTestWithTimestamp, GcPreserveLatestVersionBelowFullHistoryLow) {
Options options = CurrentOptions();
options.env = env_;
options.create_if_missing = true;
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options.comparator = &test_cmp;
DestroyAndReopen(options);
std::string ts_str = Timestamp(1, 0);
WriteOptions wopts;
ASSERT_OK(db_->Put(wopts, "k1", ts_str, "v1"));
ASSERT_OK(db_->Put(wopts, "k2", ts_str, "v2"));
ASSERT_OK(db_->Put(wopts, "k3", ts_str, "v3"));
ts_str = Timestamp(2, 0);
ASSERT_OK(db_->Delete(wopts, "k3", ts_str));
ts_str = Timestamp(4, 0);
ASSERT_OK(db_->Put(wopts, "k1", ts_str, "v5"));
ts_str = Timestamp(3, 0);
Slice ts = ts_str;
CompactRangeOptions cro;
cro.full_history_ts_low = &ts;
ASSERT_OK(db_->CompactRange(cro, nullptr, nullptr));
ASSERT_OK(Flush());
ReadOptions ropts;
ropts.timestamp = &ts;
std::string value;
Status s = db_->Get(ropts, "k1", &value);
ASSERT_OK(s);
ASSERT_EQ("v1", value);
Close();
}
TEST_F(DBBasicTestWithTimestamp, UpdateFullHistoryTsLow) {
Options options = CurrentOptions();
options.env = env_;
options.create_if_missing = true;
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options.comparator = &test_cmp;
DestroyAndReopen(options);
const std::string kKey = "test kKey";
// Test set ts_low first and flush()
int current_ts_low = 5;
std::string ts_low_str = Timestamp(current_ts_low, 0);
Slice ts_low = ts_low_str;
CompactRangeOptions comp_opts;
comp_opts.full_history_ts_low = &ts_low;
comp_opts.bottommost_level_compaction = BottommostLevelCompaction::kForce;
ASSERT_OK(db_->CompactRange(comp_opts, nullptr, nullptr));
auto* cfd =
static_cast_with_check<ColumnFamilyHandleImpl>(db_->DefaultColumnFamily())
->cfd();
auto result_ts_low = cfd->GetFullHistoryTsLow();
ASSERT_TRUE(test_cmp.CompareTimestamp(ts_low, result_ts_low) == 0);
for (int i = 0; i < 10; i++) {
WriteOptions write_opts;
std::string ts = Timestamp(i, 0);
ASSERT_OK(db_->Put(write_opts, kKey, ts, Key(i)));
}
ASSERT_OK(Flush());
// TODO return a non-ok for read ts < current_ts_low and test it.
for (int i = 0; i < 10; i++) {
ReadOptions read_opts;
std::string ts_str = Timestamp(i, 0);
Slice ts = ts_str;
read_opts.timestamp = &ts;
std::string value;
Status status = db_->Get(read_opts, kKey, &value);
if (i < current_ts_low - 1) {
ASSERT_TRUE(status.IsNotFound());
} else {
ASSERT_OK(status);
ASSERT_TRUE(value.compare(Key(i)) == 0);
}
}
// Test set ts_low and then trigger compaction
for (int i = 10; i < 20; i++) {
WriteOptions write_opts;
std::string ts = Timestamp(i, 0);
ASSERT_OK(db_->Put(write_opts, kKey, ts, Key(i)));
}
ASSERT_OK(Flush());
current_ts_low = 15;
ts_low_str = Timestamp(current_ts_low, 0);
ts_low = ts_low_str;
comp_opts.full_history_ts_low = &ts_low;
ASSERT_OK(db_->CompactRange(comp_opts, nullptr, nullptr));
result_ts_low = cfd->GetFullHistoryTsLow();
ASSERT_TRUE(test_cmp.CompareTimestamp(ts_low, result_ts_low) == 0);
// TODO return a non-ok for read ts < current_ts_low and test it.
for (int i = current_ts_low; i < 20; i++) {
ReadOptions read_opts;
std::string ts_str = Timestamp(i, 0);
Slice ts = ts_str;
read_opts.timestamp = &ts;
std::string value;
Status status = db_->Get(read_opts, kKey, &value);
ASSERT_OK(status);
ASSERT_TRUE(value.compare(Key(i)) == 0);
}
// Test invalid compaction with range
Slice start(kKey), end(kKey);
Status s = db_->CompactRange(comp_opts, &start, &end);
ASSERT_TRUE(s.IsInvalidArgument());
s = db_->CompactRange(comp_opts, &start, nullptr);
ASSERT_TRUE(s.IsInvalidArgument());
s = db_->CompactRange(comp_opts, nullptr, &end);
ASSERT_TRUE(s.IsInvalidArgument());
// Test invalid compaction with the decreasing ts_low
ts_low_str = Timestamp(current_ts_low - 1, 0);
ts_low = ts_low_str;
comp_opts.full_history_ts_low = &ts_low;
s = db_->CompactRange(comp_opts, nullptr, nullptr);
ASSERT_TRUE(s.IsInvalidArgument());
Close();
}
TEST_F(DBBasicTestWithTimestamp, UpdateFullHistoryTsLowWithPublicAPI) {
Options options = CurrentOptions();
options.env = env_;
options.create_if_missing = true;
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options.comparator = &test_cmp;
DestroyAndReopen(options);
std::string ts_low_str = Timestamp(9, 0);
ASSERT_OK(
db_->IncreaseFullHistoryTsLow(db_->DefaultColumnFamily(), ts_low_str));
std::string result_ts_low;
ASSERT_OK(db_->GetFullHistoryTsLow(nullptr, &result_ts_low));
ASSERT_TRUE(test_cmp.CompareTimestamp(ts_low_str, result_ts_low) == 0);
// test increase full_history_low backward
std::string ts_low_str_back = Timestamp(8, 0);
auto s = db_->IncreaseFullHistoryTsLow(db_->DefaultColumnFamily(),
ts_low_str_back);
ASSERT_EQ(s, Status::InvalidArgument());
// test IncreaseFullHistoryTsLow with a timestamp whose length is longger
// than the cf's timestamp size
std::string ts_low_str_long(Timestamp(0, 0).size() + 1, 'a');
s = db_->IncreaseFullHistoryTsLow(db_->DefaultColumnFamily(),
ts_low_str_long);
ASSERT_EQ(s, Status::InvalidArgument());
// test IncreaseFullHistoryTsLow with a timestamp which is null
std::string ts_low_str_null = "";
s = db_->IncreaseFullHistoryTsLow(db_->DefaultColumnFamily(),
ts_low_str_null);
ASSERT_EQ(s, Status::InvalidArgument());
// test IncreaseFullHistoryTsLow for a column family that does not enable
// timestamp
options.comparator = BytewiseComparator();
DestroyAndReopen(options);
ts_low_str = Timestamp(10, 0);
s = db_->IncreaseFullHistoryTsLow(db_->DefaultColumnFamily(), ts_low_str);
ASSERT_EQ(s, Status::InvalidArgument());
// test GetFullHistoryTsLow for a column family that does not enable
// timestamp
std::string current_ts_low;
s = db_->GetFullHistoryTsLow(db_->DefaultColumnFamily(), ¤t_ts_low);
ASSERT_EQ(s, Status::InvalidArgument());
Close();
}
TEST_F(DBBasicTestWithTimestamp, GetApproximateSizes) {
Options options = CurrentOptions();
options.write_buffer_size = 100000000; // Large write buffer
options.compression = kNoCompression;
options.create_if_missing = true;
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options.comparator = &test_cmp;
DestroyAndReopen(options);
auto default_cf = db_->DefaultColumnFamily();
WriteOptions write_opts;
std::string ts = Timestamp(1, 0);
const int N = 128;
Random rnd(301);
for (int i = 0; i < N; i++) {
ASSERT_OK(db_->Put(write_opts, Key(i), ts, rnd.RandomString(1024)));
}
uint64_t size;
std::string start = Key(50);
std::string end = Key(60);
Range r(start, end);
SizeApproximationOptions size_approx_options;
size_approx_options.include_memtables = true;
size_approx_options.include_files = true;
ASSERT_OK(
db_->GetApproximateSizes(size_approx_options, default_cf, &r, 1, &size));
ASSERT_GT(size, 6000);
ASSERT_LT(size, 204800);
// test multiple ranges
std::vector<Range> ranges;
std::string start_tmp = Key(10);
std::string end_tmp = Key(20);
ranges.emplace_back(Range(start_tmp, end_tmp));
ranges.emplace_back(Range(start, end));
uint64_t range_sizes[2];
ASSERT_OK(db_->GetApproximateSizes(size_approx_options, default_cf,
ranges.data(), 2, range_sizes));
ASSERT_EQ(range_sizes[1], size);
// Zero if not including mem table
ASSERT_OK(db_->GetApproximateSizes(&r, 1, &size));
ASSERT_EQ(size, 0);
start = Key(500);
end = Key(600);
r = Range(start, end);
ASSERT_OK(
db_->GetApproximateSizes(size_approx_options, default_cf, &r, 1, &size));
ASSERT_EQ(size, 0);
// Test range boundaries
ASSERT_OK(db_->Put(write_opts, Key(1000), ts, rnd.RandomString(1024)));
// Should include start key
start = Key(1000);
end = Key(1100);
r = Range(start, end);
ASSERT_OK(
db_->GetApproximateSizes(size_approx_options, default_cf, &r, 1, &size));
ASSERT_GT(size, 0);
// Should exclude end key
start = Key(900);
end = Key(1000);
r = Range(start, end);
ASSERT_OK(
db_->GetApproximateSizes(size_approx_options, default_cf, &r, 1, &size));
ASSERT_EQ(size, 0);
Close();
}
TEST_F(DBBasicTestWithTimestamp, SimpleIterate) {
const int kNumKeysPerFile = 128;
const uint64_t kMaxKey = 1024;
Options options = CurrentOptions();
options.env = env_;
options.create_if_missing = true;
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options.comparator = &test_cmp;
options.memtable_factory.reset(
test::NewSpecialSkipListFactory(kNumKeysPerFile));
DestroyAndReopen(options);
const std::vector<uint64_t> start_keys = {1, 0};
const std::vector<std::string> write_timestamps = {Timestamp(1, 0),
Timestamp(3, 0)};
const std::vector<std::string> read_timestamps = {Timestamp(2, 0),
Timestamp(4, 0)};
for (size_t i = 0; i < write_timestamps.size(); ++i) {
WriteOptions write_opts;
for (uint64_t key = start_keys[i]; key <= kMaxKey; ++key) {
Status s = db_->Put(write_opts, Key1(key), write_timestamps[i],
"value" + std::to_string(i));
ASSERT_OK(s);
}
}
for (size_t i = 0; i < read_timestamps.size(); ++i) {
ReadOptions read_opts;
Slice read_ts = read_timestamps[i];
read_opts.timestamp = &read_ts;
std::unique_ptr<Iterator> it(db_->NewIterator(read_opts));
int count = 0;
uint64_t key = 0;
// Forward iterate.
for (it->Seek(Key1(0)), key = start_keys[i]; it->Valid();
it->Next(), ++count, ++key) {
CheckIterUserEntry(it.get(), Key1(key), kTypeValue,
"value" + std::to_string(i), write_timestamps[i]);
}
size_t expected_count = kMaxKey - start_keys[i] + 1;
ASSERT_EQ(expected_count, count);
// Backward iterate.
count = 0;
for (it->SeekForPrev(Key1(kMaxKey)), key = kMaxKey; it->Valid();
it->Prev(), ++count, --key) {
CheckIterUserEntry(it.get(), Key1(key), kTypeValue,
"value" + std::to_string(i), write_timestamps[i]);
}
ASSERT_EQ(static_cast<size_t>(kMaxKey) - start_keys[i] + 1, count);
// SeekToFirst()/SeekToLast() with lower/upper bounds.
// Then iter with lower and upper bounds.
uint64_t l = 0;
uint64_t r = kMaxKey + 1;
while (l < r) {
std::string lb_str = Key1(l);
Slice lb = lb_str;
std::string ub_str = Key1(r);
Slice ub = ub_str;
read_opts.iterate_lower_bound = &lb;
read_opts.iterate_upper_bound = &ub;
it.reset(db_->NewIterator(read_opts));
for (it->SeekToFirst(), key = std::max(l, start_keys[i]), count = 0;
it->Valid(); it->Next(), ++key, ++count) {
CheckIterUserEntry(it.get(), Key1(key), kTypeValue,
"value" + std::to_string(i), write_timestamps[i]);
}
ASSERT_EQ(r - std::max(l, start_keys[i]), count);
for (it->SeekToLast(), key = std::min(r, kMaxKey + 1), count = 0;
it->Valid(); it->Prev(), --key, ++count) {
CheckIterUserEntry(it.get(), Key1(key - 1), kTypeValue,
"value" + std::to_string(i), write_timestamps[i]);
}
l += (kMaxKey / 100);
r -= (kMaxKey / 100);
}
}
Close();
}
TEST_F(DBBasicTestWithTimestamp, TrimHistoryTest) {
Options options = CurrentOptions();
options.env = env_;
options.create_if_missing = true;
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options.comparator = &test_cmp;
DestroyAndReopen(options);
auto check_value_by_ts = [](DB* db, Slice key, std::string readTs,
Status status, std::string checkValue) {
ReadOptions ropts;
Slice ts = readTs;
ropts.timestamp = &ts;
std::string value;
Status s = db->Get(ropts, key, &value);
ASSERT_TRUE(s == status);
if (s.ok()) {
ASSERT_EQ(checkValue, value);
}
};
// Construct data of different versions with different ts
ASSERT_OK(db_->Put(WriteOptions(), "k1", Timestamp(2, 0), "v1"));
ASSERT_OK(db_->Put(WriteOptions(), "k1", Timestamp(4, 0), "v2"));
ASSERT_OK(db_->Delete(WriteOptions(), "k1", Timestamp(5, 0)));
ASSERT_OK(db_->Put(WriteOptions(), "k1", Timestamp(6, 0), "v3"));
check_value_by_ts(db_, "k1", Timestamp(7, 0), Status::OK(), "v3");
ASSERT_OK(Flush());
Close();
ColumnFamilyOptions cf_options(options);
std::vector<ColumnFamilyDescriptor> column_families;
column_families.push_back(
ColumnFamilyDescriptor(kDefaultColumnFamilyName, cf_options));
DBOptions db_options(options);
// Trim data whose version > Timestamp(5, 0), read(k1, ts(7)) <- NOT_FOUND.
ASSERT_OK(DB::OpenAndTrimHistory(db_options, dbname_, column_families,
&handles_, &db_, Timestamp(5, 0)));
check_value_by_ts(db_, "k1", Timestamp(7, 0), Status::NotFound(), "");
Close();
// Trim data whose timestamp > Timestamp(4, 0), read(k1, ts(7)) <- v2
ASSERT_OK(DB::OpenAndTrimHistory(db_options, dbname_, column_families,
&handles_, &db_, Timestamp(4, 0)));
check_value_by_ts(db_, "k1", Timestamp(7, 0), Status::OK(), "v2");
Close();
}
TEST_F(DBBasicTestWithTimestamp, OpenAndTrimHistoryInvalidOptionTest) {
Destroy(last_options_);
Options options = CurrentOptions();
options.env = env_;
options.create_if_missing = true;
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options.comparator = &test_cmp;
ColumnFamilyOptions cf_options(options);
std::vector<ColumnFamilyDescriptor> column_families;
column_families.push_back(
ColumnFamilyDescriptor(kDefaultColumnFamilyName, cf_options));
DBOptions db_options(options);
// OpenAndTrimHistory should not work with avoid_flush_during_recovery
db_options.avoid_flush_during_recovery = true;
ASSERT_TRUE(DB::OpenAndTrimHistory(db_options, dbname_, column_families,
&handles_, &db_, Timestamp(0, 0))
.IsInvalidArgument());
}
#ifndef ROCKSDB_LITE
TEST_F(DBBasicTestWithTimestamp, GetTimestampTableProperties) {
Options options = CurrentOptions();
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options.comparator = &test_cmp;
DestroyAndReopen(options);
// Create 2 tables
for (int table = 0; table < 2; ++table) {
for (int i = 0; i < 10; i++) {
std::string ts = Timestamp(i, 0);
ASSERT_OK(db_->Put(WriteOptions(), "key", ts, Key(i)));
}
ASSERT_OK(Flush());
}
TablePropertiesCollection props;
ASSERT_OK(db_->GetPropertiesOfAllTables(&props));
ASSERT_EQ(2U, props.size());
for (const auto& item : props) {
auto& user_collected = item.second->user_collected_properties;
ASSERT_TRUE(user_collected.find("rocksdb.timestamp_min") !=
user_collected.end());
ASSERT_TRUE(user_collected.find("rocksdb.timestamp_max") !=
user_collected.end());
ASSERT_EQ(user_collected.at("rocksdb.timestamp_min"), Timestamp(0, 0));
ASSERT_EQ(user_collected.at("rocksdb.timestamp_max"), Timestamp(9, 0));
}
Close();
}
#endif // !ROCKSDB_LITE
class DBBasicTestWithTimestampTableOptions
: public DBBasicTestWithTimestampBase,
public testing::WithParamInterface<BlockBasedTableOptions::IndexType> {
public:
explicit DBBasicTestWithTimestampTableOptions()
: DBBasicTestWithTimestampBase(
"db_basic_test_with_timestamp_table_options") {}
};
INSTANTIATE_TEST_CASE_P(
Timestamp, DBBasicTestWithTimestampTableOptions,
testing::Values(
BlockBasedTableOptions::IndexType::kBinarySearch,
BlockBasedTableOptions::IndexType::kHashSearch,
BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch,
BlockBasedTableOptions::IndexType::kBinarySearchWithFirstKey));
TEST_P(DBBasicTestWithTimestampTableOptions, GetAndMultiGet) {
Options options = GetDefaultOptions();
options.create_if_missing = true;
options.prefix_extractor.reset(NewFixedPrefixTransform(3));
options.compression = kNoCompression;
BlockBasedTableOptions bbto;
bbto.index_type = GetParam();
bbto.block_size = 100;
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator cmp(kTimestampSize);
options.comparator = &cmp;
DestroyAndReopen(options);
constexpr uint64_t kNumKeys = 1024;
for (uint64_t k = 0; k < kNumKeys; ++k) {
WriteOptions write_opts;
ASSERT_OK(db_->Put(write_opts, Key1(k), Timestamp(1, 0),
"value" + std::to_string(k)));
}
ASSERT_OK(Flush());
{
ReadOptions read_opts;
read_opts.total_order_seek = true;
std::string ts_str = Timestamp(2, 0);
Slice ts = ts_str;
read_opts.timestamp = &ts;
std::unique_ptr<Iterator> it(db_->NewIterator(read_opts));
// verify Get()
for (it->SeekToFirst(); it->Valid(); it->Next()) {
std::string value_from_get;
std::string key_str(it->key().data(), it->key().size());
std::string timestamp;
ASSERT_OK(db_->Get(read_opts, key_str, &value_from_get, ×tamp));
ASSERT_EQ(it->value(), value_from_get);
ASSERT_EQ(Timestamp(1, 0), timestamp);
}
// verify MultiGet()
constexpr uint64_t step = 2;
static_assert(0 == (kNumKeys % step),
"kNumKeys must be a multiple of step");
for (uint64_t k = 0; k < kNumKeys; k += 2) {
std::vector<std::string> key_strs;
std::vector<Slice> keys;
for (size_t i = 0; i < step; ++i) {
key_strs.push_back(Key1(k + i));
}
for (size_t i = 0; i < step; ++i) {
keys.emplace_back(key_strs[i]);
}
std::vector<std::string> values;
std::vector<std::string> timestamps;
std::vector<Status> statuses =
db_->MultiGet(read_opts, keys, &values, ×tamps);
ASSERT_EQ(step, statuses.size());
ASSERT_EQ(step, values.size());
ASSERT_EQ(step, timestamps.size());
for (uint64_t i = 0; i < step; ++i) {
ASSERT_OK(statuses[i]);
ASSERT_EQ("value" + std::to_string(k + i), values[i]);
ASSERT_EQ(Timestamp(1, 0), timestamps[i]);
}
}
}
Close();
}
TEST_P(DBBasicTestWithTimestampTableOptions, SeekWithPrefixLessThanKey) {
Options options = CurrentOptions();
options.env = env_;
options.create_if_missing = true;
options.prefix_extractor.reset(NewFixedPrefixTransform(3));
options.memtable_whole_key_filtering = true;
options.memtable_prefix_bloom_size_ratio = 0.1;
BlockBasedTableOptions bbto;
bbto.filter_policy.reset(NewBloomFilterPolicy(10, false));
bbto.cache_index_and_filter_blocks = true;
bbto.whole_key_filtering = true;
bbto.index_type = GetParam();
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options.comparator = &test_cmp;
DestroyAndReopen(options);
WriteOptions write_opts;
std::string ts = Timestamp(1, 0);
ASSERT_OK(db_->Put(write_opts, "foo1", ts, "bar"));
ASSERT_OK(Flush());
ASSERT_OK(db_->Put(write_opts, "foo2", ts, "bar"));
ASSERT_OK(Flush());
// Move sst file to next level
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_OK(db_->Put(write_opts, "foo3", ts, "bar"));
ASSERT_OK(Flush());
ReadOptions read_opts;
Slice read_ts = ts;
read_opts.timestamp = &read_ts;
{
std::unique_ptr<Iterator> iter(db_->NewIterator(read_opts));
iter->Seek("foo");
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
iter->Next();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
iter->Seek("bbb");
ASSERT_FALSE(iter->Valid());
ASSERT_OK(iter->status());
}
Close();
}
TEST_P(DBBasicTestWithTimestampTableOptions, SeekWithCappedPrefix) {
Options options = CurrentOptions();
options.env = env_;
options.create_if_missing = true;
// All of the keys or this test must be longer than 3 characters
constexpr int kMinKeyLen = 3;
options.prefix_extractor.reset(NewCappedPrefixTransform(kMinKeyLen));
options.memtable_whole_key_filtering = true;
options.memtable_prefix_bloom_size_ratio = 0.1;
BlockBasedTableOptions bbto;
bbto.filter_policy.reset(NewBloomFilterPolicy(10, false));
bbto.cache_index_and_filter_blocks = true;
bbto.whole_key_filtering = true;
bbto.index_type = GetParam();
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
const size_t kTimestampSize = Timestamp(0, 0).size();
TestComparator test_cmp(kTimestampSize);
options.comparator = &test_cmp;
DestroyAndReopen(options);
WriteOptions write_opts;
std::string ts = Timestamp(1, 0);
ASSERT_OK(db_->Put(write_opts, "foo1", ts, "bar"));
ASSERT_OK(Flush());
ASSERT_OK(db_->Put(write_opts, "foo2", ts, "bar"));
ASSERT_OK(Flush());
// Move sst file to next level
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_OK(db_->Put(write_opts, "foo3", ts, "bar"));
ASSERT_OK(Flush());
ReadOptions read_opts;
ts = Timestamp(2, 0);
Slice read_ts = ts;
read_opts.timestamp = &read_ts;
{
std::unique_ptr<Iterator> iter(db_->NewIterator(read_opts));
// Make sure the prefix extractor doesn't include timestamp, otherwise it
// may return invalid result.
iter->Seek("foo");
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
iter->Next();
ASSERT_TRUE(iter->Valid());
ASSERT_OK(iter->status());
}
Close();
}