fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
426 lines
15 KiB
426 lines
15 KiB
// Copyright (c) Meta Platforms, Inc. and affiliates. 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).
|
|
|
|
#ifdef ROCKSDB_LITE
|
|
#include <cstdio>
|
|
|
|
int main(int /*argc*/, char** /*argv*/) {
|
|
fprintf(stderr, "SKIPPED as Transactions are not supported in LITE mode\n");
|
|
return 0;
|
|
}
|
|
#else // ROCKSDB_LITE
|
|
#include <cassert>
|
|
|
|
#include "util/cast_util.h"
|
|
#include "utilities/transactions/transaction_test.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
INSTANTIATE_TEST_CASE_P(
|
|
Unsupported, TimestampedSnapshotWithTsSanityCheck,
|
|
::testing::Values(
|
|
std::make_tuple(false, false, WRITE_PREPARED, kOrderedWrite),
|
|
std::make_tuple(false, true, WRITE_PREPARED, kUnorderedWrite),
|
|
std::make_tuple(false, false, WRITE_UNPREPARED, kOrderedWrite)));
|
|
|
|
INSTANTIATE_TEST_CASE_P(WriteCommitted, TransactionTest,
|
|
::testing::Combine(::testing::Bool(), ::testing::Bool(),
|
|
::testing::Values(WRITE_COMMITTED),
|
|
::testing::Values(kOrderedWrite)));
|
|
|
|
namespace {
|
|
// Not thread-safe. Caller needs to provide external synchronization.
|
|
class TsCheckingTxnNotifier : public TransactionNotifier {
|
|
public:
|
|
explicit TsCheckingTxnNotifier() = default;
|
|
|
|
~TsCheckingTxnNotifier() override {}
|
|
|
|
void SnapshotCreated(const Snapshot* new_snapshot) override {
|
|
assert(new_snapshot);
|
|
if (prev_snapshot_seq_ != kMaxSequenceNumber) {
|
|
assert(prev_snapshot_seq_ <= new_snapshot->GetSequenceNumber());
|
|
}
|
|
prev_snapshot_seq_ = new_snapshot->GetSequenceNumber();
|
|
if (prev_snapshot_ts_ != kMaxTxnTimestamp) {
|
|
assert(prev_snapshot_ts_ <= new_snapshot->GetTimestamp());
|
|
}
|
|
prev_snapshot_ts_ = new_snapshot->GetTimestamp();
|
|
}
|
|
|
|
TxnTimestamp prev_snapshot_ts() const { return prev_snapshot_ts_; }
|
|
|
|
private:
|
|
SequenceNumber prev_snapshot_seq_ = kMaxSequenceNumber;
|
|
TxnTimestamp prev_snapshot_ts_ = kMaxTxnTimestamp;
|
|
};
|
|
} // anonymous namespace
|
|
|
|
TEST_P(TimestampedSnapshotWithTsSanityCheck, WithoutCommitTs) {
|
|
std::unique_ptr<Transaction> txn(
|
|
db->BeginTransaction(WriteOptions(), TransactionOptions()));
|
|
assert(txn);
|
|
ASSERT_OK(txn->SetName("txn0"));
|
|
ASSERT_OK(txn->Put("a", "v"));
|
|
ASSERT_OK(txn->Prepare());
|
|
Status s = txn->CommitAndTryCreateSnapshot();
|
|
ASSERT_TRUE(s.IsInvalidArgument());
|
|
ASSERT_OK(txn->Rollback());
|
|
|
|
txn.reset(db->BeginTransaction(WriteOptions(), TransactionOptions()));
|
|
assert(txn);
|
|
ASSERT_OK(txn->SetName("txn0"));
|
|
ASSERT_OK(txn->Put("a", "v"));
|
|
s = txn->CommitAndTryCreateSnapshot();
|
|
ASSERT_TRUE(s.IsInvalidArgument());
|
|
}
|
|
|
|
TEST_P(TimestampedSnapshotWithTsSanityCheck, SetCommitTs) {
|
|
std::unique_ptr<Transaction> txn(
|
|
db->BeginTransaction(WriteOptions(), TransactionOptions()));
|
|
assert(txn);
|
|
ASSERT_OK(txn->SetName("txn0"));
|
|
ASSERT_OK(txn->Put("a", "v"));
|
|
ASSERT_OK(txn->Prepare());
|
|
std::shared_ptr<const Snapshot> snapshot;
|
|
Status s = txn->CommitAndTryCreateSnapshot(nullptr, 10, &snapshot);
|
|
ASSERT_TRUE(s.IsNotSupported());
|
|
ASSERT_OK(txn->Rollback());
|
|
|
|
txn.reset(db->BeginTransaction(WriteOptions(), TransactionOptions()));
|
|
assert(txn);
|
|
ASSERT_OK(txn->SetName("txn0"));
|
|
ASSERT_OK(txn->Put("a", "v"));
|
|
s = txn->CommitAndTryCreateSnapshot(nullptr, 10, &snapshot);
|
|
ASSERT_TRUE(s.IsNotSupported());
|
|
}
|
|
|
|
TEST_P(TransactionTest, WithoutCommitTs) {
|
|
std::unique_ptr<Transaction> txn(
|
|
db->BeginTransaction(WriteOptions(), TransactionOptions()));
|
|
assert(txn);
|
|
ASSERT_OK(txn->SetName("txn0"));
|
|
ASSERT_OK(txn->Put("a", "v"));
|
|
ASSERT_OK(txn->Prepare());
|
|
Status s = txn->CommitAndTryCreateSnapshot();
|
|
ASSERT_TRUE(s.IsInvalidArgument());
|
|
ASSERT_OK(txn->Rollback());
|
|
|
|
txn.reset(db->BeginTransaction(WriteOptions(), TransactionOptions()));
|
|
assert(txn);
|
|
ASSERT_OK(txn->SetName("txn0"));
|
|
ASSERT_OK(txn->Put("a", "v"));
|
|
s = txn->CommitAndTryCreateSnapshot();
|
|
ASSERT_TRUE(s.IsInvalidArgument());
|
|
}
|
|
|
|
TEST_P(TransactionTest, CreateSnapshotWhenCommit) {
|
|
std::unique_ptr<Transaction> txn(
|
|
db->BeginTransaction(WriteOptions(), TransactionOptions()));
|
|
assert(txn);
|
|
|
|
constexpr int batch_size = 10;
|
|
for (int i = 0; i < batch_size; ++i) {
|
|
ASSERT_OK(db->Put(WriteOptions(), "k" + std::to_string(i), "v0"));
|
|
}
|
|
const SequenceNumber seq0 = db->GetLatestSequenceNumber();
|
|
ASSERT_EQ(static_cast<SequenceNumber>(batch_size), seq0);
|
|
|
|
txn->SetSnapshot();
|
|
{
|
|
const Snapshot* const snapshot = txn->GetSnapshot();
|
|
assert(snapshot);
|
|
ASSERT_EQ(seq0, snapshot->GetSequenceNumber());
|
|
}
|
|
|
|
for (int i = 0; i < batch_size; ++i) {
|
|
ASSERT_OK(txn->Put("k" + std::to_string(i), "v1"));
|
|
}
|
|
ASSERT_OK(txn->SetName("txn0"));
|
|
ASSERT_OK(txn->Prepare());
|
|
|
|
std::shared_ptr<const Snapshot> snapshot;
|
|
constexpr TxnTimestamp timestamp = 1;
|
|
auto notifier = std::make_shared<TsCheckingTxnNotifier>();
|
|
Status s = txn->CommitAndTryCreateSnapshot(notifier, timestamp, &snapshot);
|
|
ASSERT_OK(s);
|
|
ASSERT_LT(notifier->prev_snapshot_ts(), kMaxTxnTimestamp);
|
|
assert(snapshot);
|
|
ASSERT_EQ(timestamp, snapshot->GetTimestamp());
|
|
ASSERT_EQ(seq0 + batch_size, snapshot->GetSequenceNumber());
|
|
const Snapshot* const raw_snapshot_ptr = txn->GetSnapshot();
|
|
ASSERT_EQ(raw_snapshot_ptr, snapshot.get());
|
|
ASSERT_EQ(snapshot, txn->GetTimestampedSnapshot());
|
|
|
|
{
|
|
std::shared_ptr<const Snapshot> snapshot1 =
|
|
db->GetLatestTimestampedSnapshot();
|
|
ASSERT_EQ(snapshot, snapshot1);
|
|
}
|
|
{
|
|
std::shared_ptr<const Snapshot> snapshot1 =
|
|
db->GetTimestampedSnapshot(timestamp);
|
|
ASSERT_EQ(snapshot, snapshot1);
|
|
}
|
|
{
|
|
std::vector<std::shared_ptr<const Snapshot> > snapshots;
|
|
s = db->GetAllTimestampedSnapshots(snapshots);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(std::vector<std::shared_ptr<const Snapshot> >{snapshot},
|
|
snapshots);
|
|
}
|
|
}
|
|
|
|
TEST_P(TransactionTest, CreateSnapshot) {
|
|
// First create a non-timestamped snapshot
|
|
ManagedSnapshot snapshot_guard(db);
|
|
for (int i = 0; i < 10; ++i) {
|
|
ASSERT_OK(db->Put(WriteOptions(), "k" + std::to_string(i),
|
|
"v0_" + std::to_string(i)));
|
|
}
|
|
{
|
|
auto ret = db->CreateTimestampedSnapshot(kMaxTxnTimestamp);
|
|
ASSERT_TRUE(ret.first.IsInvalidArgument());
|
|
auto snapshot = ret.second;
|
|
ASSERT_EQ(nullptr, snapshot.get());
|
|
}
|
|
constexpr TxnTimestamp timestamp = 100;
|
|
Status s;
|
|
std::shared_ptr<const Snapshot> ts_snap0;
|
|
std::tie(s, ts_snap0) = db->CreateTimestampedSnapshot(timestamp);
|
|
ASSERT_OK(s);
|
|
assert(ts_snap0);
|
|
ASSERT_EQ(timestamp, ts_snap0->GetTimestamp());
|
|
for (int i = 0; i < 10; ++i) {
|
|
ASSERT_OK(db->Delete(WriteOptions(), "k" + std::to_string(i)));
|
|
}
|
|
{
|
|
ReadOptions read_opts;
|
|
read_opts.snapshot = ts_snap0.get();
|
|
for (int i = 0; i < 10; ++i) {
|
|
std::string value;
|
|
s = db->Get(read_opts, "k" + std::to_string(i), &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("v0_" + std::to_string(i), value);
|
|
}
|
|
}
|
|
{
|
|
std::shared_ptr<const Snapshot> snapshot =
|
|
db->GetLatestTimestampedSnapshot();
|
|
ASSERT_EQ(ts_snap0, snapshot);
|
|
}
|
|
{
|
|
std::shared_ptr<const Snapshot> snapshot =
|
|
db->GetTimestampedSnapshot(timestamp);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(ts_snap0, snapshot);
|
|
}
|
|
{
|
|
std::vector<std::shared_ptr<const Snapshot> > snapshots;
|
|
s = db->GetAllTimestampedSnapshots(snapshots);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(std::vector<std::shared_ptr<const Snapshot> >{ts_snap0},
|
|
snapshots);
|
|
}
|
|
}
|
|
|
|
TEST_P(TransactionTest, SequenceAndTsOrder) {
|
|
Status s;
|
|
std::shared_ptr<const Snapshot> snapshot;
|
|
std::tie(s, snapshot) = db->CreateTimestampedSnapshot(100);
|
|
ASSERT_OK(s);
|
|
assert(snapshot);
|
|
{
|
|
// Cannot request smaller timestamp for the new timestamped snapshot.
|
|
std::shared_ptr<const Snapshot> tmp_snapshot;
|
|
std::tie(s, tmp_snapshot) = db->CreateTimestampedSnapshot(50);
|
|
ASSERT_TRUE(s.IsInvalidArgument());
|
|
ASSERT_EQ(nullptr, tmp_snapshot.get());
|
|
}
|
|
|
|
// If requesting a new timestamped snapshot with the same timestamp and
|
|
// sequence number, we avoid creating new snapshot object but reuse
|
|
// exisisting one.
|
|
std::shared_ptr<const Snapshot> snapshot1;
|
|
std::tie(s, snapshot1) = db->CreateTimestampedSnapshot(100);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(snapshot.get(), snapshot1.get());
|
|
|
|
// If there is no write, but we request a larger timestamp, we still create
|
|
// a new snapshot object.
|
|
std::shared_ptr<const Snapshot> snapshot2;
|
|
std::tie(s, snapshot2) = db->CreateTimestampedSnapshot(200);
|
|
ASSERT_OK(s);
|
|
assert(snapshot2);
|
|
ASSERT_NE(snapshot.get(), snapshot2.get());
|
|
ASSERT_EQ(snapshot2->GetSequenceNumber(), snapshot->GetSequenceNumber());
|
|
ASSERT_EQ(200, snapshot2->GetTimestamp());
|
|
|
|
// Increase sequence number.
|
|
ASSERT_OK(db->Put(WriteOptions(), "foo", "v0"));
|
|
{
|
|
// We are requesting the same timestamp for a larger sequence number, thus
|
|
// we cannot create timestamped snapshot.
|
|
std::shared_ptr<const Snapshot> tmp_snapshot;
|
|
std::tie(s, tmp_snapshot) = db->CreateTimestampedSnapshot(200);
|
|
ASSERT_TRUE(s.IsInvalidArgument());
|
|
ASSERT_EQ(nullptr, tmp_snapshot.get());
|
|
}
|
|
{
|
|
std::unique_ptr<Transaction> txn1(
|
|
db->BeginTransaction(WriteOptions(), TransactionOptions()));
|
|
ASSERT_OK(txn1->Put("bar", "v0"));
|
|
std::shared_ptr<const Snapshot> ss;
|
|
ASSERT_OK(txn1->CommitAndTryCreateSnapshot(nullptr, 200, &ss));
|
|
// Cannot create snapshot because requested timestamp is the same as the
|
|
// latest timestamped snapshot while sequence number is strictly higher.
|
|
ASSERT_EQ(nullptr, ss);
|
|
}
|
|
{
|
|
std::unique_ptr<Transaction> txn2(
|
|
db->BeginTransaction(WriteOptions(), TransactionOptions()));
|
|
ASSERT_OK(txn2->Put("bar", "v0"));
|
|
std::shared_ptr<const Snapshot> ss;
|
|
// Application should never do this. This is just to demonstrate error
|
|
// handling.
|
|
ASSERT_OK(txn2->CommitAndTryCreateSnapshot(nullptr, 100, &ss));
|
|
// Cannot create snapshot because requested timestamp is smaller than
|
|
// latest timestamped snapshot.
|
|
ASSERT_EQ(nullptr, ss);
|
|
}
|
|
}
|
|
|
|
TEST_P(TransactionTest, CloseDbWithSnapshots) {
|
|
std::unique_ptr<Transaction> txn(
|
|
db->BeginTransaction(WriteOptions(), TransactionOptions()));
|
|
ASSERT_OK(txn->SetName("txn0"));
|
|
ASSERT_OK(txn->Put("foo", "v"));
|
|
ASSERT_OK(txn->Prepare());
|
|
std::shared_ptr<const Snapshot> snapshot;
|
|
constexpr TxnTimestamp timestamp = 121;
|
|
auto notifier = std::make_shared<TsCheckingTxnNotifier>();
|
|
ASSERT_OK(txn->CommitAndTryCreateSnapshot(notifier, timestamp, &snapshot));
|
|
assert(snapshot);
|
|
ASSERT_LT(notifier->prev_snapshot_ts(), kMaxTxnTimestamp);
|
|
ASSERT_EQ(timestamp, snapshot->GetTimestamp());
|
|
ASSERT_TRUE(db->Close().IsAborted());
|
|
}
|
|
|
|
TEST_P(TransactionTest, MultipleTimestampedSnapshots) {
|
|
auto* dbimpl = static_cast_with_check<DBImpl>(db->GetRootDB());
|
|
assert(dbimpl);
|
|
const bool seq_per_batch = dbimpl->seq_per_batch();
|
|
// TODO: remove the following assert(!seq_per_batch) once timestamped snapshot
|
|
// is supported in write-prepared/write-unprepared transactions.
|
|
assert(!seq_per_batch);
|
|
constexpr size_t txn_size = 10;
|
|
constexpr TxnTimestamp ts_delta = 10;
|
|
constexpr size_t num_txns = 100;
|
|
std::vector<std::shared_ptr<const Snapshot> > snapshots(num_txns);
|
|
constexpr TxnTimestamp start_ts = 10000;
|
|
auto notifier = std::make_shared<TsCheckingTxnNotifier>();
|
|
for (size_t i = 0; i < num_txns; ++i) {
|
|
std::unique_ptr<Transaction> txn(
|
|
db->BeginTransaction(WriteOptions(), TransactionOptions()));
|
|
ASSERT_OK(txn->SetName("txn" + std::to_string(i)));
|
|
for (size_t j = 0; j < txn_size; ++j) {
|
|
ASSERT_OK(txn->Put("k" + std::to_string(j),
|
|
"v" + std::to_string(j) + "_" + std::to_string(i)));
|
|
}
|
|
if (0 == (i % 2)) {
|
|
ASSERT_OK(txn->Prepare());
|
|
}
|
|
ASSERT_OK(txn->CommitAndTryCreateSnapshot(notifier, start_ts + i * ts_delta,
|
|
&snapshots[i]));
|
|
assert(snapshots[i]);
|
|
ASSERT_LT(notifier->prev_snapshot_ts(), kMaxTxnTimestamp);
|
|
ASSERT_EQ(start_ts + i * ts_delta, snapshots[i]->GetTimestamp());
|
|
}
|
|
|
|
{
|
|
auto snapshot = db->GetTimestampedSnapshot(start_ts + 1);
|
|
ASSERT_EQ(nullptr, snapshot);
|
|
}
|
|
|
|
constexpr TxnTimestamp max_ts = start_ts + num_txns * ts_delta;
|
|
for (size_t i = 0; i < num_txns; ++i) {
|
|
auto snapshot = db->GetTimestampedSnapshot(start_ts + i * ts_delta);
|
|
ASSERT_EQ(snapshots[i], snapshot);
|
|
|
|
std::vector<std::shared_ptr<const Snapshot> > tmp_snapshots;
|
|
Status s = db->GetTimestampedSnapshots(max_ts, start_ts + i * ts_delta,
|
|
tmp_snapshots);
|
|
ASSERT_TRUE(s.IsInvalidArgument());
|
|
ASSERT_TRUE(tmp_snapshots.empty());
|
|
|
|
for (size_t j = i; j < num_txns; ++j) {
|
|
std::vector<std::shared_ptr<const Snapshot> > expected_snapshots(
|
|
snapshots.begin() + i, snapshots.begin() + j);
|
|
tmp_snapshots.clear();
|
|
s = db->GetTimestampedSnapshots(start_ts + i * ts_delta,
|
|
start_ts + j * ts_delta, tmp_snapshots);
|
|
if (i < j) {
|
|
ASSERT_OK(s);
|
|
} else {
|
|
ASSERT_TRUE(s.IsInvalidArgument());
|
|
}
|
|
ASSERT_EQ(expected_snapshots, tmp_snapshots);
|
|
}
|
|
}
|
|
|
|
{
|
|
std::vector<std::shared_ptr<const Snapshot> > tmp_snapshots;
|
|
const Status s = db->GetAllTimestampedSnapshots(tmp_snapshots);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(snapshots, tmp_snapshots);
|
|
|
|
const std::shared_ptr<const Snapshot> latest_snapshot =
|
|
db->GetLatestTimestampedSnapshot();
|
|
ASSERT_EQ(snapshots.back(), latest_snapshot);
|
|
}
|
|
|
|
for (size_t i = 0; i <= num_txns; ++i) {
|
|
std::vector<std::shared_ptr<const Snapshot> > snapshots1(
|
|
snapshots.begin() + i, snapshots.end());
|
|
if (i > 0) {
|
|
auto snapshot1 =
|
|
db->GetTimestampedSnapshot(start_ts + (i - 1) * ts_delta);
|
|
assert(snapshot1);
|
|
ASSERT_EQ(start_ts + (i - 1) * ts_delta, snapshot1->GetTimestamp());
|
|
}
|
|
|
|
db->ReleaseTimestampedSnapshotsOlderThan(start_ts + i * ts_delta);
|
|
|
|
if (i > 0) {
|
|
auto snapshot1 =
|
|
db->GetTimestampedSnapshot(start_ts + (i - 1) * ts_delta);
|
|
ASSERT_EQ(nullptr, snapshot1);
|
|
}
|
|
|
|
std::vector<std::shared_ptr<const Snapshot> > tmp_snapshots;
|
|
const Status s = db->GetAllTimestampedSnapshots(tmp_snapshots);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(snapshots1, tmp_snapshots);
|
|
}
|
|
|
|
// Even after released by db, the applications still hold reference to shared
|
|
// snapshots.
|
|
for (size_t i = 0; i < num_txns; ++i) {
|
|
assert(snapshots[i]);
|
|
ASSERT_EQ(start_ts + i * ts_delta, snapshots[i]->GetTimestamp());
|
|
}
|
|
|
|
snapshots.clear();
|
|
ASSERT_OK(db->Close());
|
|
delete db;
|
|
db = nullptr;
|
|
}
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|
|
#endif // !ROCKSDB_LITE
|
|
|