a21cb22ee3
Summary:
… (#4656)"
This reverts commit b76398a82b.
Will add test coverage for iterate_upper_bound before re-commit b76398
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4705
Differential Revision: D13148592
Pulled By: miasantreble
fbshipit-source-id: 4d1ce0bfd9f7a5359a7688bd780eb06a66f45b1f
1399 lines
35 KiB
C++
1399 lines
35 KiB
C++
// 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).
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
|
|
#include <functional>
|
|
#include <string>
|
|
#include <thread>
|
|
|
|
#include "rocksdb/db.h"
|
|
#include "rocksdb/utilities/optimistic_transaction_db.h"
|
|
#include "rocksdb/utilities/transaction.h"
|
|
#include "util/crc32c.h"
|
|
#include "util/logging.h"
|
|
#include "util/random.h"
|
|
#include "util/testharness.h"
|
|
#include "util/transaction_test_util.h"
|
|
#include "port/port.h"
|
|
|
|
using std::string;
|
|
|
|
namespace rocksdb {
|
|
|
|
class OptimisticTransactionTest : public testing::Test {
|
|
public:
|
|
OptimisticTransactionDB* txn_db;
|
|
string dbname;
|
|
Options options;
|
|
|
|
OptimisticTransactionTest() {
|
|
options.create_if_missing = true;
|
|
options.max_write_buffer_number = 2;
|
|
dbname = test::PerThreadDBPath("optimistic_transaction_testdb");
|
|
|
|
DestroyDB(dbname, options);
|
|
Open();
|
|
}
|
|
~OptimisticTransactionTest() {
|
|
delete txn_db;
|
|
DestroyDB(dbname, options);
|
|
}
|
|
|
|
void Reopen() {
|
|
delete txn_db;
|
|
txn_db = nullptr;
|
|
Open();
|
|
}
|
|
|
|
private:
|
|
void Open() {
|
|
Status s = OptimisticTransactionDB::Open(options, dbname, &txn_db);
|
|
assert(s.ok());
|
|
assert(txn_db != nullptr);
|
|
}
|
|
};
|
|
|
|
TEST_F(OptimisticTransactionTest, SuccessTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_db->Put(write_options, Slice("foo"), Slice("bar"));
|
|
txn_db->Put(write_options, Slice("foo2"), Slice("bar"));
|
|
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
txn->GetForUpdate(read_options, "foo", &value);
|
|
ASSERT_EQ(value, "bar");
|
|
|
|
txn->Put(Slice("foo"), Slice("bar2"));
|
|
|
|
txn->GetForUpdate(read_options, "foo", &value);
|
|
ASSERT_EQ(value, "bar2");
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
txn_db->Get(read_options, "foo", &value);
|
|
ASSERT_EQ(value, "bar2");
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, WriteConflictTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_db->Put(write_options, "foo", "bar");
|
|
txn_db->Put(write_options, "foo2", "bar");
|
|
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
txn->Put("foo", "bar2");
|
|
|
|
// This Put outside of a transaction will conflict with the previous write
|
|
s = txn_db->Put(write_options, "foo", "barz");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn_db->Get(read_options, "foo", &value);
|
|
ASSERT_EQ(value, "barz");
|
|
ASSERT_EQ(1, txn->GetNumKeys());
|
|
|
|
s = txn->Commit();
|
|
ASSERT_TRUE(s.IsBusy()); // Txn should not commit
|
|
|
|
// Verify that transaction did not write anything
|
|
txn_db->Get(read_options, "foo", &value);
|
|
ASSERT_EQ(value, "barz");
|
|
txn_db->Get(read_options, "foo2", &value);
|
|
ASSERT_EQ(value, "bar");
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, WriteConflictTest2) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
OptimisticTransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_db->Put(write_options, "foo", "bar");
|
|
txn_db->Put(write_options, "foo2", "bar");
|
|
|
|
txn_options.set_snapshot = true;
|
|
Transaction* txn = txn_db->BeginTransaction(write_options, txn_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
// This Put outside of a transaction will conflict with a later write
|
|
s = txn_db->Put(write_options, "foo", "barz");
|
|
ASSERT_OK(s);
|
|
|
|
txn->Put("foo", "bar2"); // Conflicts with write done after snapshot taken
|
|
|
|
s = txn_db->Get(read_options, "foo", &value);
|
|
ASSERT_EQ(value, "barz");
|
|
|
|
s = txn->Commit();
|
|
ASSERT_TRUE(s.IsBusy()); // Txn should not commit
|
|
|
|
// Verify that transaction did not write anything
|
|
txn_db->Get(read_options, "foo", &value);
|
|
ASSERT_EQ(value, "barz");
|
|
txn_db->Get(read_options, "foo2", &value);
|
|
ASSERT_EQ(value, "bar");
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, ReadConflictTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
OptimisticTransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_db->Put(write_options, "foo", "bar");
|
|
txn_db->Put(write_options, "foo2", "bar");
|
|
|
|
txn_options.set_snapshot = true;
|
|
Transaction* txn = txn_db->BeginTransaction(write_options, txn_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
txn->SetSnapshot();
|
|
snapshot_read_options.snapshot = txn->GetSnapshot();
|
|
|
|
txn->GetForUpdate(snapshot_read_options, "foo", &value);
|
|
ASSERT_EQ(value, "bar");
|
|
|
|
// This Put outside of a transaction will conflict with the previous read
|
|
s = txn_db->Put(write_options, "foo", "barz");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn_db->Get(read_options, "foo", &value);
|
|
ASSERT_EQ(value, "barz");
|
|
|
|
s = txn->Commit();
|
|
ASSERT_TRUE(s.IsBusy()); // Txn should not commit
|
|
|
|
// Verify that transaction did not write anything
|
|
txn->GetForUpdate(read_options, "foo", &value);
|
|
ASSERT_EQ(value, "barz");
|
|
txn->GetForUpdate(read_options, "foo2", &value);
|
|
ASSERT_EQ(value, "bar");
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, TxnOnlyTest) {
|
|
// Test to make sure transactions work when there are no other writes in an
|
|
// empty db.
|
|
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
txn->Put("x", "y");
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, FlushTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_db->Put(write_options, Slice("foo"), Slice("bar"));
|
|
txn_db->Put(write_options, Slice("foo2"), Slice("bar"));
|
|
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
snapshot_read_options.snapshot = txn->GetSnapshot();
|
|
|
|
txn->GetForUpdate(snapshot_read_options, "foo", &value);
|
|
ASSERT_EQ(value, "bar");
|
|
|
|
txn->Put(Slice("foo"), Slice("bar2"));
|
|
|
|
txn->GetForUpdate(snapshot_read_options, "foo", &value);
|
|
ASSERT_EQ(value, "bar2");
|
|
|
|
// Put a random key so we have a memtable to flush
|
|
s = txn_db->Put(write_options, "dummy", "dummy");
|
|
ASSERT_OK(s);
|
|
|
|
// force a memtable flush
|
|
FlushOptions flush_ops;
|
|
txn_db->Flush(flush_ops);
|
|
|
|
s = txn->Commit();
|
|
// txn should commit since the flushed table is still in MemtableList History
|
|
ASSERT_OK(s);
|
|
|
|
txn_db->Get(read_options, "foo", &value);
|
|
ASSERT_EQ(value, "bar2");
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, FlushTest2) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_db->Put(write_options, Slice("foo"), Slice("bar"));
|
|
txn_db->Put(write_options, Slice("foo2"), Slice("bar"));
|
|
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
snapshot_read_options.snapshot = txn->GetSnapshot();
|
|
|
|
txn->GetForUpdate(snapshot_read_options, "foo", &value);
|
|
ASSERT_EQ(value, "bar");
|
|
|
|
txn->Put(Slice("foo"), Slice("bar2"));
|
|
|
|
txn->GetForUpdate(snapshot_read_options, "foo", &value);
|
|
ASSERT_EQ(value, "bar2");
|
|
|
|
// Put a random key so we have a MemTable to flush
|
|
s = txn_db->Put(write_options, "dummy", "dummy");
|
|
ASSERT_OK(s);
|
|
|
|
// force a memtable flush
|
|
FlushOptions flush_ops;
|
|
txn_db->Flush(flush_ops);
|
|
|
|
// Put a random key so we have a MemTable to flush
|
|
s = txn_db->Put(write_options, "dummy", "dummy2");
|
|
ASSERT_OK(s);
|
|
|
|
// force a memtable flush
|
|
txn_db->Flush(flush_ops);
|
|
|
|
s = txn_db->Put(write_options, "dummy", "dummy3");
|
|
ASSERT_OK(s);
|
|
|
|
// force a memtable flush
|
|
// Since our test db has max_write_buffer_number=2, this flush will cause
|
|
// the first memtable to get purged from the MemtableList history.
|
|
txn_db->Flush(flush_ops);
|
|
|
|
s = txn->Commit();
|
|
// txn should not commit since MemTableList History is not large enough
|
|
ASSERT_TRUE(s.IsTryAgain());
|
|
|
|
txn_db->Get(read_options, "foo", &value);
|
|
ASSERT_EQ(value, "bar");
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, NoSnapshotTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_db->Put(write_options, "AAA", "bar");
|
|
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
// Modify key after transaction start
|
|
txn_db->Put(write_options, "AAA", "bar1");
|
|
|
|
// Read and write without a snapshot
|
|
txn->GetForUpdate(read_options, "AAA", &value);
|
|
ASSERT_EQ(value, "bar1");
|
|
txn->Put("AAA", "bar2");
|
|
|
|
// Should commit since read/write was done after data changed
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
txn->GetForUpdate(read_options, "AAA", &value);
|
|
ASSERT_EQ(value, "bar2");
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, MultipleSnapshotTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_db->Put(write_options, "AAA", "bar");
|
|
txn_db->Put(write_options, "BBB", "bar");
|
|
txn_db->Put(write_options, "CCC", "bar");
|
|
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
txn_db->Put(write_options, "AAA", "bar1");
|
|
|
|
// Read and write without a snapshot
|
|
txn->GetForUpdate(read_options, "AAA", &value);
|
|
ASSERT_EQ(value, "bar1");
|
|
txn->Put("AAA", "bar2");
|
|
|
|
// Modify BBB before snapshot is taken
|
|
txn_db->Put(write_options, "BBB", "bar1");
|
|
|
|
txn->SetSnapshot();
|
|
snapshot_read_options.snapshot = txn->GetSnapshot();
|
|
|
|
// Read and write with snapshot
|
|
txn->GetForUpdate(snapshot_read_options, "BBB", &value);
|
|
ASSERT_EQ(value, "bar1");
|
|
txn->Put("BBB", "bar2");
|
|
|
|
txn_db->Put(write_options, "CCC", "bar1");
|
|
|
|
// Set a new snapshot
|
|
txn->SetSnapshot();
|
|
snapshot_read_options.snapshot = txn->GetSnapshot();
|
|
|
|
// Read and write with snapshot
|
|
txn->GetForUpdate(snapshot_read_options, "CCC", &value);
|
|
ASSERT_EQ(value, "bar1");
|
|
txn->Put("CCC", "bar2");
|
|
|
|
s = txn->GetForUpdate(read_options, "AAA", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(value, "bar2");
|
|
s = txn->GetForUpdate(read_options, "BBB", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(value, "bar2");
|
|
s = txn->GetForUpdate(read_options, "CCC", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(value, "bar2");
|
|
|
|
s = txn_db->Get(read_options, "AAA", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(value, "bar1");
|
|
s = txn_db->Get(read_options, "BBB", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(value, "bar1");
|
|
s = txn_db->Get(read_options, "CCC", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(value, "bar1");
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn_db->Get(read_options, "AAA", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(value, "bar2");
|
|
s = txn_db->Get(read_options, "BBB", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(value, "bar2");
|
|
s = txn_db->Get(read_options, "CCC", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(value, "bar2");
|
|
|
|
// verify that we track multiple writes to the same key at different snapshots
|
|
delete txn;
|
|
txn = txn_db->BeginTransaction(write_options);
|
|
|
|
// Potentially conflicting writes
|
|
txn_db->Put(write_options, "ZZZ", "zzz");
|
|
txn_db->Put(write_options, "XXX", "xxx");
|
|
|
|
txn->SetSnapshot();
|
|
|
|
OptimisticTransactionOptions txn_options;
|
|
txn_options.set_snapshot = true;
|
|
Transaction* txn2 = txn_db->BeginTransaction(write_options, txn_options);
|
|
txn2->SetSnapshot();
|
|
|
|
// This should not conflict in txn since the snapshot is later than the
|
|
// previous write (spoiler alert: it will later conflict with txn2).
|
|
txn->Put("ZZZ", "zzzz");
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete txn;
|
|
|
|
// This will conflict since the snapshot is earlier than another write to ZZZ
|
|
txn2->Put("ZZZ", "xxxxx");
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
delete txn2;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, ColumnFamiliesTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
OptimisticTransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
ColumnFamilyHandle *cfa, *cfb;
|
|
ColumnFamilyOptions cf_options;
|
|
|
|
// Create 2 new column families
|
|
s = txn_db->CreateColumnFamily(cf_options, "CFA", &cfa);
|
|
ASSERT_OK(s);
|
|
s = txn_db->CreateColumnFamily(cf_options, "CFB", &cfb);
|
|
ASSERT_OK(s);
|
|
|
|
delete cfa;
|
|
delete cfb;
|
|
delete txn_db;
|
|
txn_db = nullptr;
|
|
|
|
// open DB with three column families
|
|
std::vector<ColumnFamilyDescriptor> column_families;
|
|
// have to open default column family
|
|
column_families.push_back(
|
|
ColumnFamilyDescriptor(kDefaultColumnFamilyName, ColumnFamilyOptions()));
|
|
// open the new column families
|
|
column_families.push_back(
|
|
ColumnFamilyDescriptor("CFA", ColumnFamilyOptions()));
|
|
column_families.push_back(
|
|
ColumnFamilyDescriptor("CFB", ColumnFamilyOptions()));
|
|
std::vector<ColumnFamilyHandle*> handles;
|
|
s = OptimisticTransactionDB::Open(options, dbname, column_families, &handles,
|
|
&txn_db);
|
|
ASSERT_OK(s);
|
|
assert(txn_db != nullptr);
|
|
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
txn->SetSnapshot();
|
|
snapshot_read_options.snapshot = txn->GetSnapshot();
|
|
|
|
txn_options.set_snapshot = true;
|
|
Transaction* txn2 = txn_db->BeginTransaction(write_options, txn_options);
|
|
ASSERT_TRUE(txn2);
|
|
|
|
// Write some data to the db
|
|
WriteBatch batch;
|
|
batch.Put("foo", "foo");
|
|
batch.Put(handles[1], "AAA", "bar");
|
|
batch.Put(handles[1], "AAAZZZ", "bar");
|
|
s = txn_db->Write(write_options, &batch);
|
|
ASSERT_OK(s);
|
|
txn_db->Delete(write_options, handles[1], "AAAZZZ");
|
|
|
|
// These keys do no conflict with existing writes since they're in
|
|
// different column families
|
|
txn->Delete("AAA");
|
|
txn->GetForUpdate(snapshot_read_options, handles[1], "foo", &value);
|
|
Slice key_slice("AAAZZZ");
|
|
Slice value_slices[2] = {Slice("bar"), Slice("bar")};
|
|
txn->Put(handles[2], SliceParts(&key_slice, 1), SliceParts(value_slices, 2));
|
|
|
|
ASSERT_EQ(3, txn->GetNumKeys());
|
|
|
|
// Txn should commit
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
s = txn_db->Get(read_options, "AAA", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
s = txn_db->Get(read_options, handles[2], "AAAZZZ", &value);
|
|
ASSERT_EQ(value, "barbar");
|
|
|
|
Slice key_slices[3] = {Slice("AAA"), Slice("ZZ"), Slice("Z")};
|
|
Slice value_slice("barbarbar");
|
|
// This write will cause a conflict with the earlier batch write
|
|
txn2->Put(handles[1], SliceParts(key_slices, 3), SliceParts(&value_slice, 1));
|
|
|
|
txn2->Delete(handles[2], "XXX");
|
|
txn2->Delete(handles[1], "XXX");
|
|
s = txn2->GetForUpdate(snapshot_read_options, handles[1], "AAA", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
// Verify txn did not commit
|
|
s = txn2->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
s = txn_db->Get(read_options, handles[1], "AAAZZZ", &value);
|
|
ASSERT_EQ(value, "barbar");
|
|
|
|
delete txn;
|
|
delete txn2;
|
|
|
|
txn = txn_db->BeginTransaction(write_options, txn_options);
|
|
snapshot_read_options.snapshot = txn->GetSnapshot();
|
|
|
|
txn2 = txn_db->BeginTransaction(write_options, txn_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
std::vector<ColumnFamilyHandle*> multiget_cfh = {handles[1], handles[2],
|
|
handles[0], handles[2]};
|
|
std::vector<Slice> multiget_keys = {"AAA", "AAAZZZ", "foo", "foo"};
|
|
std::vector<std::string> values(4);
|
|
|
|
std::vector<Status> results = txn->MultiGetForUpdate(
|
|
snapshot_read_options, multiget_cfh, multiget_keys, &values);
|
|
ASSERT_OK(results[0]);
|
|
ASSERT_OK(results[1]);
|
|
ASSERT_OK(results[2]);
|
|
ASSERT_TRUE(results[3].IsNotFound());
|
|
ASSERT_EQ(values[0], "bar");
|
|
ASSERT_EQ(values[1], "barbar");
|
|
ASSERT_EQ(values[2], "foo");
|
|
|
|
txn->Delete(handles[2], "ZZZ");
|
|
txn->Put(handles[2], "ZZZ", "YYY");
|
|
txn->Put(handles[2], "ZZZ", "YYYY");
|
|
txn->Delete(handles[2], "ZZZ");
|
|
txn->Put(handles[2], "AAAZZZ", "barbarbar");
|
|
|
|
ASSERT_EQ(5, txn->GetNumKeys());
|
|
|
|
// Txn should commit
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
s = txn_db->Get(read_options, handles[2], "ZZZ", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
// Put a key which will conflict with the next txn using the previous snapshot
|
|
txn_db->Put(write_options, handles[2], "foo", "000");
|
|
|
|
results = txn2->MultiGetForUpdate(snapshot_read_options, multiget_cfh,
|
|
multiget_keys, &values);
|
|
ASSERT_OK(results[0]);
|
|
ASSERT_OK(results[1]);
|
|
ASSERT_OK(results[2]);
|
|
ASSERT_TRUE(results[3].IsNotFound());
|
|
ASSERT_EQ(values[0], "bar");
|
|
ASSERT_EQ(values[1], "barbar");
|
|
ASSERT_EQ(values[2], "foo");
|
|
|
|
// Verify Txn Did not Commit
|
|
s = txn2->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
s = txn_db->DropColumnFamily(handles[1]);
|
|
ASSERT_OK(s);
|
|
s = txn_db->DropColumnFamily(handles[2]);
|
|
ASSERT_OK(s);
|
|
|
|
delete txn;
|
|
delete txn2;
|
|
|
|
for (auto handle : handles) {
|
|
delete handle;
|
|
}
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, EmptyTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
s = txn_db->Put(write_options, "aaa", "aaa");
|
|
ASSERT_OK(s);
|
|
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn;
|
|
|
|
txn = txn_db->BeginTransaction(write_options);
|
|
txn->Rollback();
|
|
delete txn;
|
|
|
|
txn = txn_db->BeginTransaction(write_options);
|
|
s = txn->GetForUpdate(read_options, "aaa", &value);
|
|
ASSERT_EQ(value, "aaa");
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn;
|
|
|
|
txn = txn_db->BeginTransaction(write_options);
|
|
txn->SetSnapshot();
|
|
s = txn->GetForUpdate(read_options, "aaa", &value);
|
|
ASSERT_EQ(value, "aaa");
|
|
|
|
s = txn_db->Put(write_options, "aaa", "xxx");
|
|
s = txn->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, PredicateManyPreceders) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options1, read_options2;
|
|
OptimisticTransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_options.set_snapshot = true;
|
|
Transaction* txn1 = txn_db->BeginTransaction(write_options, txn_options);
|
|
read_options1.snapshot = txn1->GetSnapshot();
|
|
|
|
Transaction* txn2 = txn_db->BeginTransaction(write_options);
|
|
txn2->SetSnapshot();
|
|
read_options2.snapshot = txn2->GetSnapshot();
|
|
|
|
std::vector<Slice> multiget_keys = {"1", "2", "3"};
|
|
std::vector<std::string> multiget_values;
|
|
|
|
std::vector<Status> results =
|
|
txn1->MultiGetForUpdate(read_options1, multiget_keys, &multiget_values);
|
|
ASSERT_TRUE(results[1].IsNotFound());
|
|
|
|
txn2->Put("2", "x");
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
multiget_values.clear();
|
|
results =
|
|
txn1->MultiGetForUpdate(read_options1, multiget_keys, &multiget_values);
|
|
ASSERT_TRUE(results[1].IsNotFound());
|
|
|
|
// should not commit since txn2 wrote a key txn has read
|
|
s = txn1->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
txn1 = txn_db->BeginTransaction(write_options, txn_options);
|
|
read_options1.snapshot = txn1->GetSnapshot();
|
|
|
|
txn2 = txn_db->BeginTransaction(write_options, txn_options);
|
|
read_options2.snapshot = txn2->GetSnapshot();
|
|
|
|
txn1->Put("4", "x");
|
|
|
|
txn2->Delete("4");
|
|
|
|
// txn1 can commit since txn2's delete hasn't happened yet (it's just batched)
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->GetForUpdate(read_options2, "4", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
// txn2 cannot commit since txn1 changed "4"
|
|
s = txn2->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, LostUpdate) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, read_options1, read_options2;
|
|
OptimisticTransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
// Test 2 transactions writing to the same key in multiple orders and
|
|
// with/without snapshots
|
|
|
|
Transaction* txn1 = txn_db->BeginTransaction(write_options);
|
|
Transaction* txn2 = txn_db->BeginTransaction(write_options);
|
|
|
|
txn1->Put("1", "1");
|
|
txn2->Put("1", "2");
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
txn_options.set_snapshot = true;
|
|
txn1 = txn_db->BeginTransaction(write_options, txn_options);
|
|
read_options1.snapshot = txn1->GetSnapshot();
|
|
|
|
txn2 = txn_db->BeginTransaction(write_options, txn_options);
|
|
read_options2.snapshot = txn2->GetSnapshot();
|
|
|
|
txn1->Put("1", "3");
|
|
txn2->Put("1", "4");
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
txn1 = txn_db->BeginTransaction(write_options, txn_options);
|
|
read_options1.snapshot = txn1->GetSnapshot();
|
|
|
|
txn2 = txn_db->BeginTransaction(write_options, txn_options);
|
|
read_options2.snapshot = txn2->GetSnapshot();
|
|
|
|
txn1->Put("1", "5");
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
txn2->Put("1", "6");
|
|
s = txn2->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
txn1 = txn_db->BeginTransaction(write_options, txn_options);
|
|
read_options1.snapshot = txn1->GetSnapshot();
|
|
|
|
txn2 = txn_db->BeginTransaction(write_options, txn_options);
|
|
read_options2.snapshot = txn2->GetSnapshot();
|
|
|
|
txn1->Put("1", "5");
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
txn2->SetSnapshot();
|
|
txn2->Put("1", "6");
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
txn1 = txn_db->BeginTransaction(write_options);
|
|
txn2 = txn_db->BeginTransaction(write_options);
|
|
|
|
txn1->Put("1", "7");
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
txn2->Put("1", "8");
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
s = txn_db->Get(read_options, "1", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(value, "8");
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, UntrackedWrites) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
// Verify transaction rollback works for untracked keys.
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
txn->PutUntracked("untracked", "0");
|
|
txn->Rollback();
|
|
s = txn_db->Get(read_options, "untracked", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
delete txn;
|
|
txn = txn_db->BeginTransaction(write_options);
|
|
|
|
txn->Put("tracked", "1");
|
|
txn->PutUntracked("untracked", "1");
|
|
txn->MergeUntracked("untracked", "2");
|
|
txn->DeleteUntracked("untracked");
|
|
|
|
// Write to the untracked key outside of the transaction and verify
|
|
// it doesn't prevent the transaction from committing.
|
|
s = txn_db->Put(write_options, "untracked", "x");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn_db->Get(read_options, "untracked", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
delete txn;
|
|
txn = txn_db->BeginTransaction(write_options);
|
|
|
|
txn->Put("tracked", "10");
|
|
txn->PutUntracked("untracked", "A");
|
|
|
|
// Write to tracked key outside of the transaction and verify that the
|
|
// untracked keys are not written when the commit fails.
|
|
s = txn_db->Delete(write_options, "tracked");
|
|
|
|
s = txn->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
s = txn_db->Get(read_options, "untracked", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, IteratorTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
OptimisticTransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
// Write some keys to the db
|
|
s = txn_db->Put(write_options, "A", "a");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn_db->Put(write_options, "G", "g");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn_db->Put(write_options, "F", "f");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn_db->Put(write_options, "C", "c");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn_db->Put(write_options, "D", "d");
|
|
ASSERT_OK(s);
|
|
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
// Write some keys in a txn
|
|
s = txn->Put("B", "b");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("H", "h");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Delete("D");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("E", "e");
|
|
ASSERT_OK(s);
|
|
|
|
txn->SetSnapshot();
|
|
const Snapshot* snapshot = txn->GetSnapshot();
|
|
|
|
// Write some keys to the db after the snapshot
|
|
s = txn_db->Put(write_options, "BB", "xx");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn_db->Put(write_options, "C", "xx");
|
|
ASSERT_OK(s);
|
|
|
|
read_options.snapshot = snapshot;
|
|
Iterator* iter = txn->GetIterator(read_options);
|
|
ASSERT_OK(iter->status());
|
|
iter->SeekToFirst();
|
|
|
|
// Read all keys via iter and lock them all
|
|
std::string results[] = {"a", "b", "c", "e", "f", "g", "h"};
|
|
for (int i = 0; i < 7; i++) {
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(results[i], iter->value().ToString());
|
|
|
|
s = txn->GetForUpdate(read_options, iter->key(), nullptr);
|
|
ASSERT_OK(s);
|
|
|
|
iter->Next();
|
|
}
|
|
ASSERT_FALSE(iter->Valid());
|
|
|
|
iter->Seek("G");
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("g", iter->value().ToString());
|
|
|
|
iter->Prev();
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("f", iter->value().ToString());
|
|
|
|
iter->Seek("D");
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("e", iter->value().ToString());
|
|
|
|
iter->Seek("C");
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("c", iter->value().ToString());
|
|
|
|
iter->Next();
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("e", iter->value().ToString());
|
|
|
|
iter->Seek("");
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("a", iter->value().ToString());
|
|
|
|
iter->Seek("X");
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_FALSE(iter->Valid());
|
|
|
|
iter->SeekToLast();
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("h", iter->value().ToString());
|
|
|
|
// key "C" was modified in the db after txn's snapshot. txn will not commit.
|
|
s = txn->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
delete iter;
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, SavepointTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
OptimisticTransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
Transaction* txn = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
s = txn->RollbackToSavePoint();
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
txn->SetSavePoint(); // 1
|
|
|
|
ASSERT_OK(txn->RollbackToSavePoint()); // Rollback to beginning of txn
|
|
s = txn->RollbackToSavePoint();
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn->Put("B", "b");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn_db->Get(read_options, "B", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("b", value);
|
|
|
|
delete txn;
|
|
txn = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
s = txn->Put("A", "a");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("B", "bb");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("C", "c");
|
|
ASSERT_OK(s);
|
|
|
|
txn->SetSavePoint(); // 2
|
|
|
|
s = txn->Delete("B");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("C", "cc");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("D", "d");
|
|
ASSERT_OK(s);
|
|
|
|
ASSERT_OK(txn->RollbackToSavePoint()); // Rollback to 2
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("a", value);
|
|
|
|
s = txn->Get(read_options, "B", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("bb", value);
|
|
|
|
s = txn->Get(read_options, "C", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("c", value);
|
|
|
|
s = txn->Get(read_options, "D", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn->Put("A", "a");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("E", "e");
|
|
ASSERT_OK(s);
|
|
|
|
// Rollback to beginning of txn
|
|
s = txn->RollbackToSavePoint();
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
txn->Rollback();
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn->Get(read_options, "B", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("b", value);
|
|
|
|
s = txn->Get(read_options, "D", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn->Get(read_options, "D", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn->Get(read_options, "E", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn->Put("A", "aa");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("F", "f");
|
|
ASSERT_OK(s);
|
|
|
|
txn->SetSavePoint(); // 3
|
|
txn->SetSavePoint(); // 4
|
|
|
|
s = txn->Put("G", "g");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Delete("F");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Delete("B");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("aa", value);
|
|
|
|
s = txn->Get(read_options, "F", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn->Get(read_options, "B", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
ASSERT_OK(txn->RollbackToSavePoint()); // Rollback to 3
|
|
|
|
s = txn->Get(read_options, "F", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("f", value);
|
|
|
|
s = txn->Get(read_options, "G", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn_db->Get(read_options, "F", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("f", value);
|
|
|
|
s = txn_db->Get(read_options, "G", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn_db->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("aa", value);
|
|
|
|
s = txn_db->Get(read_options, "B", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("b", value);
|
|
|
|
s = txn_db->Get(read_options, "C", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn_db->Get(read_options, "D", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn_db->Get(read_options, "E", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, UndoGetForUpdateTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
OptimisticTransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_db->Put(write_options, "A", "");
|
|
|
|
Transaction* txn1 = txn_db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn1);
|
|
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
|
|
txn1->UndoGetForUpdate("A");
|
|
|
|
Transaction* txn2 = txn_db->BeginTransaction(write_options);
|
|
txn2->Put("A", "x");
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
|
|
// Verify that txn1 can commit since A isn't conflict checked
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn1;
|
|
|
|
txn1 = txn_db->BeginTransaction(write_options);
|
|
txn1->Put("A", "a");
|
|
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
|
|
txn1->UndoGetForUpdate("A");
|
|
|
|
txn2 = txn_db->BeginTransaction(write_options);
|
|
txn2->Put("A", "x");
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
|
|
// Verify that txn1 cannot commit since A will still be conflict checked
|
|
s = txn1->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
delete txn1;
|
|
|
|
txn1 = txn_db->BeginTransaction(write_options);
|
|
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
|
|
txn1->UndoGetForUpdate("A");
|
|
|
|
txn2 = txn_db->BeginTransaction(write_options);
|
|
txn2->Put("A", "x");
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
|
|
// Verify that txn1 cannot commit since A will still be conflict checked
|
|
s = txn1->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
delete txn1;
|
|
|
|
txn1 = txn_db->BeginTransaction(write_options);
|
|
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
|
|
txn1->UndoGetForUpdate("A");
|
|
txn1->UndoGetForUpdate("A");
|
|
|
|
txn2 = txn_db->BeginTransaction(write_options);
|
|
txn2->Put("A", "x");
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
|
|
// Verify that txn1 can commit since A isn't conflict checked
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn1;
|
|
|
|
txn1 = txn_db->BeginTransaction(write_options);
|
|
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
|
|
txn1->SetSavePoint();
|
|
txn1->UndoGetForUpdate("A");
|
|
|
|
txn2 = txn_db->BeginTransaction(write_options);
|
|
txn2->Put("A", "x");
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
|
|
// Verify that txn1 cannot commit since A will still be conflict checked
|
|
s = txn1->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
delete txn1;
|
|
|
|
txn1 = txn_db->BeginTransaction(write_options);
|
|
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
|
|
txn1->SetSavePoint();
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
txn1->UndoGetForUpdate("A");
|
|
|
|
txn2 = txn_db->BeginTransaction(write_options);
|
|
txn2->Put("A", "x");
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
|
|
// Verify that txn1 cannot commit since A will still be conflict checked
|
|
s = txn1->Commit();
|
|
ASSERT_TRUE(s.IsBusy());
|
|
delete txn1;
|
|
|
|
txn1 = txn_db->BeginTransaction(write_options);
|
|
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
|
|
txn1->SetSavePoint();
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
txn1->UndoGetForUpdate("A");
|
|
|
|
txn1->RollbackToSavePoint();
|
|
txn1->UndoGetForUpdate("A");
|
|
|
|
txn2 = txn_db->BeginTransaction(write_options);
|
|
txn2->Put("A", "x");
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
|
|
// Verify that txn1 can commit since A isn't conflict checked
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn1;
|
|
}
|
|
|
|
namespace {
|
|
Status OptimisticTransactionStressTestInserter(OptimisticTransactionDB* db,
|
|
const size_t num_transactions,
|
|
const size_t num_sets,
|
|
const size_t num_keys_per_set) {
|
|
size_t seed = std::hash<std::thread::id>()(std::this_thread::get_id());
|
|
Random64 _rand(seed);
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
OptimisticTransactionOptions txn_options;
|
|
txn_options.set_snapshot = true;
|
|
|
|
RandomTransactionInserter inserter(&_rand, write_options, read_options,
|
|
num_keys_per_set,
|
|
static_cast<uint16_t>(num_sets));
|
|
|
|
for (size_t t = 0; t < num_transactions; t++) {
|
|
bool success = inserter.OptimisticTransactionDBInsert(db, txn_options);
|
|
if (!success) {
|
|
// unexpected failure
|
|
return inserter.GetLastStatus();
|
|
}
|
|
}
|
|
|
|
// Make sure at least some of the transactions succeeded. It's ok if
|
|
// some failed due to write-conflicts.
|
|
if (inserter.GetFailureCount() > num_transactions / 2) {
|
|
return Status::TryAgain("Too many transactions failed! " +
|
|
std::to_string(inserter.GetFailureCount()) + " / " +
|
|
std::to_string(num_transactions));
|
|
}
|
|
|
|
return Status::OK();
|
|
}
|
|
} // namespace
|
|
|
|
TEST_F(OptimisticTransactionTest, OptimisticTransactionStressTest) {
|
|
const size_t num_threads = 4;
|
|
const size_t num_transactions_per_thread = 10000;
|
|
const size_t num_sets = 3;
|
|
const size_t num_keys_per_set = 100;
|
|
// Setting the key-space to be 100 keys should cause enough write-conflicts
|
|
// to make this test interesting.
|
|
|
|
std::vector<port::Thread> threads;
|
|
|
|
std::function<void()> call_inserter = [&] {
|
|
ASSERT_OK(OptimisticTransactionStressTestInserter(
|
|
txn_db, num_transactions_per_thread, num_sets, num_keys_per_set));
|
|
};
|
|
|
|
// Create N threads that use RandomTransactionInserter to write
|
|
// many transactions.
|
|
for (uint32_t i = 0; i < num_threads; i++) {
|
|
threads.emplace_back(call_inserter);
|
|
}
|
|
|
|
// Wait for all threads to run
|
|
for (auto& t : threads) {
|
|
t.join();
|
|
}
|
|
|
|
// Verify that data is consistent
|
|
Status s = RandomTransactionInserter::Verify(txn_db, num_sets);
|
|
ASSERT_OK(s);
|
|
}
|
|
|
|
TEST_F(OptimisticTransactionTest, SequenceNumberAfterRecoverTest) {
|
|
WriteOptions write_options;
|
|
OptimisticTransactionOptions transaction_options;
|
|
|
|
Transaction* transaction(txn_db->BeginTransaction(write_options, transaction_options));
|
|
Status s = transaction->Put("foo", "val");
|
|
ASSERT_OK(s);
|
|
s = transaction->Put("foo2", "val");
|
|
ASSERT_OK(s);
|
|
s = transaction->Put("foo3", "val");
|
|
ASSERT_OK(s);
|
|
s = transaction->Commit();
|
|
ASSERT_OK(s);
|
|
delete transaction;
|
|
|
|
Reopen();
|
|
transaction = txn_db->BeginTransaction(write_options, transaction_options);
|
|
s = transaction->Put("bar", "val");
|
|
ASSERT_OK(s);
|
|
s = transaction->Put("bar2", "val");
|
|
ASSERT_OK(s);
|
|
s = transaction->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete transaction;
|
|
}
|
|
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|
|
|
|
#else
|
|
#include <stdio.h>
|
|
|
|
int main(int /*argc*/, char** /*argv*/) {
|
|
fprintf(
|
|
stderr,
|
|
"SKIPPED as optimistic_transaction is not supported in ROCKSDB_LITE\n");
|
|
return 0;
|
|
}
|
|
|
|
#endif // !ROCKSDB_LITE
|