b28b7c6dd9
Summary: When SetSnapshot() is used the caller immediately knows a snapshot has been created, but when SetSnapshotOnNextOperation() is used the caller needs a way to get notified when that snapshot has been generated. This creates an interface that the client can implement that will be called at the time the snapshot is created. Test Plan: Added a new SetSnapshotOnNextOperationWithNotification test into the transaction_test. Reviewers: sdong, anthony Reviewed By: anthony Subscribers: yoshinorim, leveldb, dhruba Differential Revision: https://reviews.facebook.net/D51177
2348 lines
55 KiB
C++
2348 lines
55 KiB
C++
// Copyright (c) 2015, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#ifndef ROCKSDB_LITE
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#include <string>
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#include "db/db_impl.h"
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#include "rocksdb/db.h"
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#include "rocksdb/options.h"
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#include "rocksdb/utilities/transaction.h"
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#include "rocksdb/utilities/transaction_db.h"
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#include "util/logging.h"
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#include "util/testharness.h"
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#include "utilities/merge_operators.h"
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#include "utilities/merge_operators/string_append/stringappend.h"
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using std::string;
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namespace rocksdb {
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class TransactionTest : public testing::Test {
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public:
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TransactionDB* db;
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string dbname;
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Options options;
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TransactionDBOptions txn_db_options;
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TransactionTest() {
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options.create_if_missing = true;
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options.max_write_buffer_number = 2;
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options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
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dbname = test::TmpDir() + "/transaction_testdb";
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DestroyDB(dbname, options);
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txn_db_options.transaction_lock_timeout = 0;
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txn_db_options.default_lock_timeout = 0;
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Status s = TransactionDB::Open(options, txn_db_options, dbname, &db);
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assert(s.ok());
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}
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~TransactionTest() {
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delete db;
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DestroyDB(dbname, options);
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}
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};
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TEST_F(TransactionTest, SuccessTest) {
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WriteOptions write_options;
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ReadOptions read_options;
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string value;
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Status s;
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db->Put(write_options, Slice("foo"), Slice("bar"));
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db->Put(write_options, Slice("foo2"), Slice("bar"));
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Transaction* txn = db->BeginTransaction(write_options, TransactionOptions());
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ASSERT_TRUE(txn);
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ASSERT_EQ(0, txn->GetNumPuts());
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s = txn->GetForUpdate(read_options, "foo", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar");
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s = txn->Put(Slice("foo"), Slice("bar2"));
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ASSERT_OK(s);
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ASSERT_EQ(1, txn->GetNumPuts());
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s = txn->GetForUpdate(read_options, "foo", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar2");
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s = txn->Commit();
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ASSERT_OK(s);
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s = db->Get(read_options, "foo", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar2");
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delete txn;
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}
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TEST_F(TransactionTest, WriteConflictTest) {
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WriteOptions write_options;
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ReadOptions read_options;
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string value;
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Status s;
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db->Put(write_options, "foo", "A");
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db->Put(write_options, "foo2", "B");
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Transaction* txn = db->BeginTransaction(write_options);
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ASSERT_TRUE(txn);
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s = txn->Put("foo", "A2");
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ASSERT_OK(s);
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s = txn->Put("foo2", "B2");
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ASSERT_OK(s);
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// This Put outside of a transaction will conflict with the previous write
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s = db->Put(write_options, "foo", "xxx");
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ASSERT_TRUE(s.IsTimedOut());
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s = db->Get(read_options, "foo", &value);
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ASSERT_EQ(value, "A");
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s = txn->Commit();
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ASSERT_OK(s);
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db->Get(read_options, "foo", &value);
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ASSERT_EQ(value, "A2");
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db->Get(read_options, "foo2", &value);
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ASSERT_EQ(value, "B2");
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delete txn;
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}
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TEST_F(TransactionTest, WriteConflictTest2) {
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WriteOptions write_options;
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ReadOptions read_options;
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TransactionOptions txn_options;
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string value;
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Status s;
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db->Put(write_options, "foo", "bar");
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txn_options.set_snapshot = true;
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Transaction* txn = db->BeginTransaction(write_options, txn_options);
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ASSERT_TRUE(txn);
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// This Put outside of a transaction will conflict with a later write
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s = db->Put(write_options, "foo", "barz");
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ASSERT_OK(s);
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s = txn->Put("foo2", "X");
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ASSERT_OK(s);
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s = txn->Put("foo",
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"bar2"); // Conflicts with write done after snapshot taken
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ASSERT_TRUE(s.IsBusy());
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s = txn->Put("foo3", "Y");
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ASSERT_OK(s);
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s = db->Get(read_options, "foo", &value);
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ASSERT_EQ(value, "barz");
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ASSERT_EQ(2, txn->GetNumKeys());
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s = txn->Commit();
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ASSERT_OK(s); // Txn should commit, but only write foo2 and foo3
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// Verify that transaction wrote foo2 and foo3 but not foo
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db->Get(read_options, "foo", &value);
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ASSERT_EQ(value, "barz");
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db->Get(read_options, "foo2", &value);
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ASSERT_EQ(value, "X");
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db->Get(read_options, "foo3", &value);
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ASSERT_EQ(value, "Y");
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delete txn;
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}
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TEST_F(TransactionTest, ReadConflictTest) {
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WriteOptions write_options;
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ReadOptions read_options, snapshot_read_options;
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TransactionOptions txn_options;
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string value;
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Status s;
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db->Put(write_options, "foo", "bar");
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db->Put(write_options, "foo2", "bar");
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txn_options.set_snapshot = true;
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Transaction* txn = db->BeginTransaction(write_options, txn_options);
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ASSERT_TRUE(txn);
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txn->SetSnapshot();
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snapshot_read_options.snapshot = txn->GetSnapshot();
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txn->GetForUpdate(snapshot_read_options, "foo", &value);
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ASSERT_EQ(value, "bar");
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// This Put outside of a transaction will conflict with the previous read
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s = db->Put(write_options, "foo", "barz");
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ASSERT_TRUE(s.IsTimedOut());
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s = db->Get(read_options, "foo", &value);
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ASSERT_EQ(value, "bar");
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s = txn->Get(read_options, "foo", &value);
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ASSERT_EQ(value, "bar");
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s = txn->Commit();
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ASSERT_OK(s);
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delete txn;
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}
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TEST_F(TransactionTest, TxnOnlyTest) {
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// Test to make sure transactions work when there are no other writes in an
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// empty db.
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WriteOptions write_options;
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ReadOptions read_options;
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string value;
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Status s;
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Transaction* txn = db->BeginTransaction(write_options);
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ASSERT_TRUE(txn);
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s = txn->Put("x", "y");
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ASSERT_OK(s);
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s = txn->Commit();
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ASSERT_OK(s);
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delete txn;
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}
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TEST_F(TransactionTest, FlushTest) {
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WriteOptions write_options;
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ReadOptions read_options, snapshot_read_options;
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string value;
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Status s;
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db->Put(write_options, Slice("foo"), Slice("bar"));
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db->Put(write_options, Slice("foo2"), Slice("bar"));
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Transaction* txn = db->BeginTransaction(write_options);
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ASSERT_TRUE(txn);
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snapshot_read_options.snapshot = txn->GetSnapshot();
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txn->GetForUpdate(snapshot_read_options, "foo", &value);
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ASSERT_EQ(value, "bar");
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s = txn->Put(Slice("foo"), Slice("bar2"));
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ASSERT_OK(s);
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txn->GetForUpdate(snapshot_read_options, "foo", &value);
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ASSERT_EQ(value, "bar2");
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// Put a random key so we have a memtable to flush
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s = db->Put(write_options, "dummy", "dummy");
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ASSERT_OK(s);
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// force a memtable flush
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FlushOptions flush_ops;
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db->Flush(flush_ops);
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s = txn->Commit();
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// txn should commit since the flushed table is still in MemtableList History
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ASSERT_OK(s);
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db->Get(read_options, "foo", &value);
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ASSERT_EQ(value, "bar2");
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delete txn;
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}
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TEST_F(TransactionTest, FlushTest2) {
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WriteOptions write_options;
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ReadOptions read_options, snapshot_read_options;
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TransactionOptions txn_options;
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string value;
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Status s;
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db->Put(write_options, Slice("foo"), Slice("bar"));
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db->Put(write_options, Slice("foo2"), Slice("bar"));
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txn_options.set_snapshot = true;
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Transaction* txn = db->BeginTransaction(write_options, txn_options);
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ASSERT_TRUE(txn);
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snapshot_read_options.snapshot = txn->GetSnapshot();
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txn->GetForUpdate(snapshot_read_options, "foo", &value);
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ASSERT_EQ(value, "bar");
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s = txn->Put(Slice("foo"), Slice("bar2"));
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ASSERT_OK(s);
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txn->GetForUpdate(snapshot_read_options, "foo", &value);
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ASSERT_EQ(value, "bar2");
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// Put a random key so we have a MemTable to flush
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s = db->Put(write_options, "dummy", "dummy");
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ASSERT_OK(s);
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// force a memtable flush
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FlushOptions flush_ops;
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db->Flush(flush_ops);
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// Put a random key so we have a MemTable to flush
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s = db->Put(write_options, "dummy", "dummy2");
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ASSERT_OK(s);
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// force a memtable flush
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db->Flush(flush_ops);
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s = db->Put(write_options, "dummy", "dummy3");
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ASSERT_OK(s);
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// force a memtable flush
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// Since our test db has max_write_buffer_number=2, this flush will cause
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// the first memtable to get purged from the MemtableList history.
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db->Flush(flush_ops);
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s = txn->Put("X", "Y");
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// Put should fail since MemTableList History is not older than the snapshot.
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ASSERT_TRUE(s.IsTryAgain());
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s = txn->Commit();
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ASSERT_OK(s);
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// Transaction should only write the keys that succeeded.
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s = db->Get(read_options, "foo", &value);
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ASSERT_EQ(value, "bar2");
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s = db->Get(read_options, "X", &value);
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ASSERT_TRUE(s.IsNotFound());
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delete txn;
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}
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TEST_F(TransactionTest, NoSnapshotTest) {
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WriteOptions write_options;
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ReadOptions read_options;
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string value;
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Status s;
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db->Put(write_options, "AAA", "bar");
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Transaction* txn = db->BeginTransaction(write_options);
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ASSERT_TRUE(txn);
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// Modify key after transaction start
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db->Put(write_options, "AAA", "bar1");
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// Read and write without a snapshot
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txn->GetForUpdate(read_options, "AAA", &value);
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ASSERT_EQ(value, "bar1");
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s = txn->Put("AAA", "bar2");
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ASSERT_OK(s);
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// Should commit since read/write was done after data changed
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s = txn->Commit();
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ASSERT_OK(s);
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txn->GetForUpdate(read_options, "AAA", &value);
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ASSERT_EQ(value, "bar2");
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delete txn;
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}
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TEST_F(TransactionTest, MultipleSnapshotTest) {
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WriteOptions write_options;
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ReadOptions read_options, snapshot_read_options;
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string value;
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Status s;
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db->Put(write_options, "AAA", "bar");
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db->Put(write_options, "BBB", "bar");
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db->Put(write_options, "CCC", "bar");
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Transaction* txn = db->BeginTransaction(write_options);
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ASSERT_TRUE(txn);
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db->Put(write_options, "AAA", "bar1");
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// Read and write without a snapshot
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txn->GetForUpdate(read_options, "AAA", &value);
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ASSERT_EQ(value, "bar1");
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s = txn->Put("AAA", "bar2");
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ASSERT_OK(s);
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// Modify BBB before snapshot is taken
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db->Put(write_options, "BBB", "bar1");
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txn->SetSnapshot();
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snapshot_read_options.snapshot = txn->GetSnapshot();
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// Read and write with snapshot
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txn->GetForUpdate(snapshot_read_options, "BBB", &value);
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ASSERT_EQ(value, "bar1");
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s = txn->Put("BBB", "bar2");
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ASSERT_OK(s);
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db->Put(write_options, "CCC", "bar1");
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// Set a new snapshot
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txn->SetSnapshot();
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snapshot_read_options.snapshot = txn->GetSnapshot();
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// Read and write with snapshot
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txn->GetForUpdate(snapshot_read_options, "CCC", &value);
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ASSERT_EQ(value, "bar1");
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s = txn->Put("CCC", "bar2");
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ASSERT_OK(s);
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s = txn->GetForUpdate(read_options, "AAA", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar2");
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s = txn->GetForUpdate(read_options, "BBB", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar2");
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s = txn->GetForUpdate(read_options, "CCC", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar2");
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s = db->Get(read_options, "AAA", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar1");
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s = db->Get(read_options, "BBB", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar1");
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s = db->Get(read_options, "CCC", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar1");
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s = txn->Commit();
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ASSERT_OK(s);
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s = db->Get(read_options, "AAA", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar2");
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s = db->Get(read_options, "BBB", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar2");
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s = db->Get(read_options, "CCC", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "bar2");
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// verify that we track multiple writes to the same key at different snapshots
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delete txn;
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txn = db->BeginTransaction(write_options);
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// Potentially conflicting writes
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db->Put(write_options, "ZZZ", "zzz");
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db->Put(write_options, "XXX", "xxx");
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txn->SetSnapshot();
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TransactionOptions txn_options;
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txn_options.set_snapshot = true;
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Transaction* txn2 = db->BeginTransaction(write_options, txn_options);
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txn2->SetSnapshot();
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// This should not conflict in txn since the snapshot is later than the
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// previous write (spoiler alert: it will later conflict with txn2).
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s = txn->Put("ZZZ", "zzzz");
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ASSERT_OK(s);
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s = txn->Commit();
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ASSERT_OK(s);
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delete txn;
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// This will conflict since the snapshot is earlier than another write to ZZZ
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s = txn2->Put("ZZZ", "xxxxx");
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ASSERT_TRUE(s.IsBusy());
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s = txn2->Commit();
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ASSERT_OK(s);
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s = db->Get(read_options, "ZZZ", &value);
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ASSERT_OK(s);
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ASSERT_EQ(value, "zzzz");
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delete txn2;
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}
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TEST_F(TransactionTest, ColumnFamiliesTest) {
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WriteOptions write_options;
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ReadOptions read_options, snapshot_read_options;
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TransactionOptions txn_options;
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string value;
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Status s;
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ColumnFamilyHandle *cfa, *cfb;
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ColumnFamilyOptions cf_options;
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// Create 2 new column families
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s = db->CreateColumnFamily(cf_options, "CFA", &cfa);
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ASSERT_OK(s);
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s = db->CreateColumnFamily(cf_options, "CFB", &cfb);
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ASSERT_OK(s);
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delete cfa;
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delete cfb;
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delete db;
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// open DB with three column families
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std::vector<ColumnFamilyDescriptor> column_families;
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// have to open default column family
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column_families.push_back(
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ColumnFamilyDescriptor(kDefaultColumnFamilyName, ColumnFamilyOptions()));
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// open the new column families
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column_families.push_back(
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ColumnFamilyDescriptor("CFA", ColumnFamilyOptions()));
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column_families.push_back(
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ColumnFamilyDescriptor("CFB", ColumnFamilyOptions()));
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std::vector<ColumnFamilyHandle*> handles;
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s = TransactionDB::Open(options, txn_db_options, dbname, column_families,
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&handles, &db);
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ASSERT_OK(s);
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Transaction* txn = db->BeginTransaction(write_options);
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ASSERT_TRUE(txn);
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txn->SetSnapshot();
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snapshot_read_options.snapshot = txn->GetSnapshot();
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txn_options.set_snapshot = true;
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Transaction* txn2 = db->BeginTransaction(write_options, txn_options);
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ASSERT_TRUE(txn2);
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// Write some data to the db
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WriteBatch batch;
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batch.Put("foo", "foo");
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batch.Put(handles[1], "AAA", "bar");
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batch.Put(handles[1], "AAAZZZ", "bar");
|
|
s = db->Write(write_options, &batch);
|
|
ASSERT_OK(s);
|
|
db->Delete(write_options, handles[1], "AAAZZZ");
|
|
|
|
// These keys do not conflict with existing writes since they're in
|
|
// different column families
|
|
s = txn->Delete("AAA");
|
|
ASSERT_OK(s);
|
|
s = txn->GetForUpdate(snapshot_read_options, handles[1], "foo", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
Slice key_slice("AAAZZZ");
|
|
Slice value_slices[2] = {Slice("bar"), Slice("bar")};
|
|
s = txn->Put(handles[2], SliceParts(&key_slice, 1),
|
|
SliceParts(value_slices, 2));
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(3, txn->GetNumKeys());
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
s = db->Get(read_options, "AAA", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
s = 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");
|
|
|
|
s = txn2->Delete(handles[2], "XXX");
|
|
ASSERT_OK(s);
|
|
s = txn2->Delete(handles[1], "XXX");
|
|
ASSERT_OK(s);
|
|
|
|
// This write will cause a conflict with the earlier batch write
|
|
s = txn2->Put(handles[1], SliceParts(key_slices, 3),
|
|
SliceParts(&value_slice, 1));
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
s = db->Get(read_options, handles[1], "AAAZZZ", &value);
|
|
ASSERT_EQ(value, "barbar");
|
|
|
|
delete txn;
|
|
delete txn2;
|
|
|
|
txn = db->BeginTransaction(write_options, txn_options);
|
|
snapshot_read_options.snapshot = txn->GetSnapshot();
|
|
|
|
txn2 = 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");
|
|
|
|
s = txn->SingleDelete(handles[2], "ZZZ");
|
|
ASSERT_OK(s);
|
|
s = txn->Put(handles[2], "ZZZ", "YYY");
|
|
ASSERT_OK(s);
|
|
s = txn->Put(handles[2], "ZZZ", "YYYY");
|
|
ASSERT_OK(s);
|
|
s = txn->Delete(handles[2], "ZZZ");
|
|
ASSERT_OK(s);
|
|
s = txn->Put(handles[2], "AAAZZZ", "barbarbar");
|
|
ASSERT_OK(s);
|
|
|
|
ASSERT_EQ(5, txn->GetNumKeys());
|
|
|
|
// Txn should commit
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
s = 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
|
|
db->Put(write_options, handles[2], "foo", "000");
|
|
|
|
results = txn2->MultiGetForUpdate(snapshot_read_options, multiget_cfh,
|
|
multiget_keys, &values);
|
|
// All results should fail since there was a conflict
|
|
ASSERT_TRUE(results[0].IsBusy());
|
|
ASSERT_TRUE(results[1].IsBusy());
|
|
ASSERT_TRUE(results[2].IsBusy());
|
|
ASSERT_TRUE(results[3].IsBusy());
|
|
|
|
s = db->Get(read_options, handles[2], "foo", &value);
|
|
ASSERT_EQ(value, "000");
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->DropColumnFamily(handles[1]);
|
|
ASSERT_OK(s);
|
|
s = db->DropColumnFamily(handles[2]);
|
|
ASSERT_OK(s);
|
|
|
|
delete txn;
|
|
delete txn2;
|
|
|
|
for (auto handle : handles) {
|
|
delete handle;
|
|
}
|
|
}
|
|
|
|
TEST_F(TransactionTest, ColumnFamiliesTest2) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
TransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
ColumnFamilyHandle *one, *two;
|
|
ColumnFamilyOptions cf_options;
|
|
|
|
// Create 2 new column families
|
|
s = db->CreateColumnFamily(cf_options, "ONE", &one);
|
|
ASSERT_OK(s);
|
|
s = db->CreateColumnFamily(cf_options, "TWO", &two);
|
|
ASSERT_OK(s);
|
|
|
|
Transaction* txn1 = db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn1);
|
|
Transaction* txn2 = db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn2);
|
|
|
|
s = txn1->Put(one, "X", "1");
|
|
ASSERT_OK(s);
|
|
s = txn1->Put(two, "X", "2");
|
|
ASSERT_OK(s);
|
|
s = txn1->Put("X", "0");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Put(one, "X", "11");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
// Drop first column family
|
|
s = db->DropColumnFamily(one);
|
|
ASSERT_OK(s);
|
|
|
|
// Should fail since column family was dropped.
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete txn1;
|
|
txn1 = db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn1);
|
|
|
|
// Should fail since column family was dropped
|
|
s = txn1->Put(one, "X", "111");
|
|
ASSERT_TRUE(s.IsInvalidArgument());
|
|
|
|
s = txn1->Put(two, "X", "222");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Put("X", "000");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Get(read_options, two, "X", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("222", value);
|
|
|
|
s = db->Get(read_options, "X", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("000", value);
|
|
|
|
s = db->DropColumnFamily(two);
|
|
ASSERT_OK(s);
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
delete one;
|
|
delete two;
|
|
}
|
|
|
|
TEST_F(TransactionTest, EmptyTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
s = db->Put(write_options, "aaa", "aaa");
|
|
ASSERT_OK(s);
|
|
|
|
Transaction* txn = db->BeginTransaction(write_options);
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn;
|
|
|
|
txn = db->BeginTransaction(write_options);
|
|
txn->Rollback();
|
|
delete 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 = db->BeginTransaction(write_options);
|
|
txn->SetSnapshot();
|
|
|
|
s = txn->GetForUpdate(read_options, "aaa", &value);
|
|
ASSERT_EQ(value, "aaa");
|
|
|
|
// Conflicts with previous GetForUpdate
|
|
s = db->Put(write_options, "aaa", "xxx");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
|
|
// transaction expired!
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(TransactionTest, PredicateManyPreceders) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options1, read_options2;
|
|
TransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_options.set_snapshot = true;
|
|
Transaction* txn1 = db->BeginTransaction(write_options, txn_options);
|
|
read_options1.snapshot = txn1->GetSnapshot();
|
|
|
|
Transaction* txn2 = 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());
|
|
|
|
s = txn2->Put("2", "x"); // Conflict's with txn1's MultiGetForUpdate
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
|
|
txn2->Rollback();
|
|
|
|
multiget_values.clear();
|
|
results =
|
|
txn1->MultiGetForUpdate(read_options1, multiget_keys, &multiget_values);
|
|
ASSERT_TRUE(results[1].IsNotFound());
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
txn1 = db->BeginTransaction(write_options, txn_options);
|
|
read_options1.snapshot = txn1->GetSnapshot();
|
|
|
|
txn2 = db->BeginTransaction(write_options, txn_options);
|
|
read_options2.snapshot = txn2->GetSnapshot();
|
|
|
|
s = txn1->Put("4", "x");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Delete("4"); // conflict
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->GetForUpdate(read_options2, "4", &value);
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
txn2->Rollback();
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
}
|
|
|
|
TEST_F(TransactionTest, LostUpdate) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, read_options1, read_options2;
|
|
TransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
// Test 2 transactions writing to the same key in multiple orders and
|
|
// with/without snapshots
|
|
|
|
Transaction* txn1 = db->BeginTransaction(write_options);
|
|
Transaction* txn2 = db->BeginTransaction(write_options);
|
|
|
|
s = txn1->Put("1", "1");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Put("1", "2"); // conflict
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Get(read_options, "1", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("1", value);
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
txn_options.set_snapshot = true;
|
|
txn1 = db->BeginTransaction(write_options, txn_options);
|
|
read_options1.snapshot = txn1->GetSnapshot();
|
|
|
|
txn2 = db->BeginTransaction(write_options, txn_options);
|
|
read_options2.snapshot = txn2->GetSnapshot();
|
|
|
|
s = txn1->Put("1", "3");
|
|
ASSERT_OK(s);
|
|
s = txn2->Put("1", "4"); // conflict
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Get(read_options, "1", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("3", value);
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
txn1 = db->BeginTransaction(write_options, txn_options);
|
|
read_options1.snapshot = txn1->GetSnapshot();
|
|
|
|
txn2 = db->BeginTransaction(write_options, txn_options);
|
|
read_options2.snapshot = txn2->GetSnapshot();
|
|
|
|
s = txn1->Put("1", "5");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Put("1", "6");
|
|
ASSERT_TRUE(s.IsBusy());
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Get(read_options, "1", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("5", value);
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
txn1 = db->BeginTransaction(write_options, txn_options);
|
|
read_options1.snapshot = txn1->GetSnapshot();
|
|
|
|
txn2 = db->BeginTransaction(write_options, txn_options);
|
|
read_options2.snapshot = txn2->GetSnapshot();
|
|
|
|
s = txn1->Put("1", "7");
|
|
ASSERT_OK(s);
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
txn2->SetSnapshot();
|
|
s = txn2->Put("1", "8");
|
|
ASSERT_OK(s);
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Get(read_options, "1", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("8", value);
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
txn1 = db->BeginTransaction(write_options);
|
|
txn2 = db->BeginTransaction(write_options);
|
|
|
|
s = txn1->Put("1", "9");
|
|
ASSERT_OK(s);
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Put("1", "10");
|
|
ASSERT_OK(s);
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
|
|
s = db->Get(read_options, "1", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(value, "10");
|
|
}
|
|
|
|
TEST_F(TransactionTest, UntrackedWrites) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
// Verify transaction rollback works for untracked keys.
|
|
Transaction* txn = db->BeginTransaction(write_options);
|
|
txn->SetSnapshot();
|
|
|
|
s = txn->PutUntracked("untracked", "0");
|
|
ASSERT_OK(s);
|
|
txn->Rollback();
|
|
s = db->Get(read_options, "untracked", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
delete txn;
|
|
txn = db->BeginTransaction(write_options);
|
|
txn->SetSnapshot();
|
|
|
|
s = db->Put(write_options, "untracked", "x");
|
|
ASSERT_OK(s);
|
|
|
|
// Untracked writes should succeed even though key was written after snapshot
|
|
s = txn->PutUntracked("untracked", "1");
|
|
ASSERT_OK(s);
|
|
s = txn->MergeUntracked("untracked", "2");
|
|
ASSERT_OK(s);
|
|
s = txn->DeleteUntracked("untracked");
|
|
ASSERT_OK(s);
|
|
|
|
// Conflict
|
|
s = txn->Put("untracked", "3");
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Get(read_options, "untracked", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(TransactionTest, ExpiredTransaction) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
TransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
// Set txn expiration timeout to 0 microseconds (expires instantly)
|
|
txn_options.expiration = 0;
|
|
Transaction* txn1 = db->BeginTransaction(write_options, txn_options);
|
|
|
|
s = txn1->Put("X", "1");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Put("Y", "1");
|
|
ASSERT_OK(s);
|
|
|
|
Transaction* txn2 = db->BeginTransaction(write_options);
|
|
|
|
// txn2 should be able to write to X since txn1 has expired
|
|
s = txn2->Put("X", "2");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
s = db->Get(read_options, "X", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("2", value);
|
|
|
|
s = txn1->Put("Z", "1");
|
|
ASSERT_OK(s);
|
|
|
|
// txn1 should fail to commit since it is expired
|
|
s = txn1->Commit();
|
|
ASSERT_TRUE(s.IsExpired());
|
|
|
|
s = db->Get(read_options, "Y", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = db->Get(read_options, "Z", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
}
|
|
|
|
TEST_F(TransactionTest, Rollback) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
TransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
Transaction* txn1 = db->BeginTransaction(write_options, txn_options);
|
|
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Put("X", "1");
|
|
ASSERT_OK(s);
|
|
|
|
Transaction* txn2 = db->BeginTransaction(write_options);
|
|
|
|
// txn2 should not be able to write to X since txn1 has it locked
|
|
s = txn2->Put("X", "2");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
|
|
txn1->Rollback();
|
|
delete txn1;
|
|
|
|
// txn2 should now be able to write to X
|
|
s = txn2->Put("X", "3");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Get(read_options, "X", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("3", value);
|
|
|
|
delete txn2;
|
|
}
|
|
|
|
TEST_F(TransactionTest, LockLimitTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
TransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
delete db;
|
|
|
|
// Open DB with a lock limit of 3
|
|
txn_db_options.max_num_locks = 3;
|
|
s = TransactionDB::Open(options, txn_db_options, dbname, &db);
|
|
ASSERT_OK(s);
|
|
|
|
// Create a txn and verify we can only lock up to 3 keys
|
|
Transaction* txn = db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
s = txn->Put("X", "x");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("Y", "y");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("Z", "z");
|
|
ASSERT_OK(s);
|
|
|
|
// lock limit reached
|
|
s = txn->Put("W", "w");
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
// re-locking same key shouldn't put us over the limit
|
|
s = txn->Put("X", "xx");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->GetForUpdate(read_options, "W", &value);
|
|
ASSERT_TRUE(s.IsBusy());
|
|
s = txn->GetForUpdate(read_options, "V", &value);
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
// re-locking same key shouldn't put us over the limit
|
|
s = txn->GetForUpdate(read_options, "Y", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("y", value);
|
|
|
|
s = txn->Get(read_options, "W", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
Transaction* txn2 = db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn2);
|
|
|
|
// "X" currently locked
|
|
s = txn2->Put("X", "x");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
|
|
// lock limit reached
|
|
s = txn2->Put("M", "m");
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Get(read_options, "X", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("xx", value);
|
|
|
|
s = db->Get(read_options, "W", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
// Committing txn should release its locks and allow txn2 to proceed
|
|
s = txn2->Put("X", "x2");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Delete("X");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Put("M", "m");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Put("Z", "z2");
|
|
ASSERT_OK(s);
|
|
|
|
// lock limit reached
|
|
s = txn2->Delete("Y");
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Get(read_options, "Z", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("z2", value);
|
|
|
|
s = db->Get(read_options, "Y", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("y", value);
|
|
|
|
s = db->Get(read_options, "X", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
delete txn;
|
|
delete txn2;
|
|
}
|
|
|
|
TEST_F(TransactionTest, IteratorTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
TransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
// Write some keys to the db
|
|
s = db->Put(write_options, "A", "a");
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Put(write_options, "G", "g");
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Put(write_options, "F", "f");
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Put(write_options, "C", "c");
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Put(write_options, "D", "d");
|
|
ASSERT_OK(s);
|
|
|
|
Transaction* 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 = db->Put(write_options, "BB", "xx");
|
|
ASSERT_OK(s);
|
|
|
|
s = 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);
|
|
if (i == 2) {
|
|
// "C" was modified after txn's snapshot
|
|
ASSERT_TRUE(s.IsBusy());
|
|
} else {
|
|
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());
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete iter;
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(TransactionTest, DisableIndexingTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
Transaction* txn = db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
s = txn->Put("A", "a");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("a", value);
|
|
|
|
txn->DisableIndexing();
|
|
|
|
s = txn->Put("B", "b");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Get(read_options, "B", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
Iterator* iter = txn->GetIterator(read_options);
|
|
ASSERT_OK(iter->status());
|
|
|
|
iter->Seek("B");
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_FALSE(iter->Valid());
|
|
|
|
s = txn->Delete("A");
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("a", value);
|
|
|
|
txn->EnableIndexing();
|
|
|
|
s = txn->Put("B", "bb");
|
|
ASSERT_OK(s);
|
|
|
|
iter->Seek("B");
|
|
ASSERT_OK(iter->status());
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ("bb", iter->value().ToString());
|
|
|
|
s = txn->Get(read_options, "B", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("bb", value);
|
|
|
|
s = txn->Put("A", "aa");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("aa", value);
|
|
|
|
delete iter;
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(TransactionTest, SavepointTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
TransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
Transaction* txn = db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
ASSERT_EQ(0, txn->GetNumPuts());
|
|
|
|
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);
|
|
|
|
ASSERT_EQ(1, txn->GetNumPuts());
|
|
ASSERT_EQ(0, txn->GetNumDeletes());
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Get(read_options, "B", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("b", value);
|
|
|
|
delete 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_EQ(5, txn->GetNumPuts());
|
|
ASSERT_EQ(1, txn->GetNumDeletes());
|
|
|
|
ASSERT_OK(txn->RollbackToSavePoint()); // Rollback to 2
|
|
|
|
ASSERT_EQ(3, txn->GetNumPuts());
|
|
ASSERT_EQ(0, txn->GetNumDeletes());
|
|
|
|
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);
|
|
|
|
ASSERT_EQ(5, txn->GetNumPuts());
|
|
ASSERT_EQ(0, txn->GetNumDeletes());
|
|
|
|
// Rollback to beginning of txn
|
|
s = txn->RollbackToSavePoint();
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
txn->Rollback();
|
|
|
|
ASSERT_EQ(0, txn->GetNumPuts());
|
|
ASSERT_EQ(0, txn->GetNumDeletes());
|
|
|
|
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);
|
|
|
|
ASSERT_EQ(2, txn->GetNumPuts());
|
|
ASSERT_EQ(0, txn->GetNumDeletes());
|
|
|
|
txn->SetSavePoint(); // 3
|
|
txn->SetSavePoint(); // 4
|
|
|
|
s = txn->Put("G", "g");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->SingleDelete("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);
|
|
// According to db.h, doing a SingleDelete on a key that has been
|
|
// overwritten will have undefinied behavior. So it is unclear what the
|
|
// result of fetching "F" should be. The current implementation will
|
|
// return NotFound in this case.
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn->Get(read_options, "B", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
ASSERT_EQ(3, txn->GetNumPuts());
|
|
ASSERT_EQ(2, txn->GetNumDeletes());
|
|
|
|
ASSERT_OK(txn->RollbackToSavePoint()); // Rollback to 3
|
|
|
|
ASSERT_EQ(2, txn->GetNumPuts());
|
|
ASSERT_EQ(0, txn->GetNumDeletes());
|
|
|
|
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 = db->Get(read_options, "F", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("f", value);
|
|
|
|
s = db->Get(read_options, "G", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = db->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("aa", value);
|
|
|
|
s = db->Get(read_options, "B", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("b", value);
|
|
|
|
s = db->Get(read_options, "C", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = db->Get(read_options, "D", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = db->Get(read_options, "E", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(TransactionTest, SavepointTest2) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
TransactionOptions txn_options;
|
|
string value;
|
|
Status s;
|
|
|
|
txn_options.lock_timeout = 1; // 1 ms
|
|
Transaction* txn1 = db->BeginTransaction(write_options, txn_options);
|
|
ASSERT_TRUE(txn1);
|
|
|
|
s = txn1->Put("A", "");
|
|
ASSERT_OK(s);
|
|
|
|
txn1->SetSavePoint(); // 1
|
|
|
|
s = txn1->Put("A", "a");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Put("C", "c");
|
|
ASSERT_OK(s);
|
|
|
|
txn1->SetSavePoint(); // 2
|
|
|
|
s = txn1->Put("A", "a");
|
|
ASSERT_OK(s);
|
|
s = txn1->Put("B", "b");
|
|
ASSERT_OK(s);
|
|
|
|
ASSERT_OK(txn1->RollbackToSavePoint()); // Rollback to 2
|
|
|
|
// Verify that "A" and "C" is still locked while "B" is not
|
|
Transaction* txn2 = db->BeginTransaction(write_options, txn_options);
|
|
ASSERT_TRUE(txn2);
|
|
|
|
s = txn2->Put("A", "a2");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
s = txn2->Put("C", "c2");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
s = txn2->Put("B", "b2");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Put("A", "aa");
|
|
ASSERT_OK(s);
|
|
s = txn1->Put("B", "bb");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
|
|
s = txn1->Put("A", "aaa");
|
|
ASSERT_OK(s);
|
|
s = txn1->Put("B", "bbb");
|
|
ASSERT_OK(s);
|
|
s = txn1->Put("C", "ccc");
|
|
ASSERT_OK(s);
|
|
|
|
txn1->SetSavePoint(); // 3
|
|
ASSERT_OK(txn1->RollbackToSavePoint()); // Rollback to 3
|
|
|
|
// Verify that "A", "B", "C" are still locked
|
|
txn2 = db->BeginTransaction(write_options, txn_options);
|
|
ASSERT_TRUE(txn2);
|
|
|
|
s = txn2->Put("A", "a2");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
s = txn2->Put("B", "b2");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
s = txn2->Put("C", "c2");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
|
|
ASSERT_OK(txn1->RollbackToSavePoint()); // Rollback to 1
|
|
|
|
// Verify that only "A" is locked
|
|
s = txn2->Put("A", "a3");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
s = txn2->Put("B", "b3");
|
|
ASSERT_OK(s);
|
|
s = txn2->Put("C", "c3po");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn1;
|
|
|
|
// Verify "A" "C" "B" are no longer locked
|
|
s = txn2->Put("A", "a4");
|
|
ASSERT_OK(s);
|
|
s = txn2->Put("B", "b4");
|
|
ASSERT_OK(s);
|
|
s = txn2->Put("C", "c4");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
}
|
|
|
|
TEST_F(TransactionTest, TimeoutTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
delete db;
|
|
|
|
// transaction writes have an infinite timeout,
|
|
// but we will override this when we start a txn
|
|
// db writes have infinite timeout
|
|
txn_db_options.transaction_lock_timeout = -1;
|
|
txn_db_options.default_lock_timeout = -1;
|
|
|
|
s = TransactionDB::Open(options, txn_db_options, dbname, &db);
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Put(write_options, "aaa", "aaa");
|
|
ASSERT_OK(s);
|
|
|
|
TransactionOptions txn_options0;
|
|
txn_options0.expiration = 100; // 100ms
|
|
txn_options0.lock_timeout = 50; // txn timeout no longer infinite
|
|
Transaction* txn1 = db->BeginTransaction(write_options, txn_options0);
|
|
|
|
s = txn1->GetForUpdate(read_options, "aaa", nullptr);
|
|
ASSERT_OK(s);
|
|
|
|
// Conflicts with previous GetForUpdate.
|
|
// Since db writes do not have a timeout, this should eventually succeed when
|
|
// the transaction expires.
|
|
s = db->Put(write_options, "aaa", "xxx");
|
|
ASSERT_OK(s);
|
|
|
|
ASSERT_GE(txn1->GetElapsedTime(),
|
|
static_cast<uint64_t>(txn_options0.expiration));
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_TRUE(s.IsExpired()); // expired!
|
|
|
|
s = db->Get(read_options, "aaa", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("xxx", value);
|
|
|
|
delete txn1;
|
|
delete db;
|
|
|
|
// transaction writes have 10ms timeout,
|
|
// db writes have infinite timeout
|
|
txn_db_options.transaction_lock_timeout = 50;
|
|
txn_db_options.default_lock_timeout = -1;
|
|
|
|
s = TransactionDB::Open(options, txn_db_options, dbname, &db);
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Put(write_options, "aaa", "aaa");
|
|
ASSERT_OK(s);
|
|
|
|
TransactionOptions txn_options;
|
|
txn_options.expiration = 100; // 100ms
|
|
txn1 = db->BeginTransaction(write_options, txn_options);
|
|
|
|
s = txn1->GetForUpdate(read_options, "aaa", nullptr);
|
|
ASSERT_OK(s);
|
|
|
|
// Conflicts with previous GetForUpdate.
|
|
// Since db writes do not have a timeout, this should eventually succeed when
|
|
// the transaction expires.
|
|
s = db->Put(write_options, "aaa", "xxx");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_NOK(s); // expired!
|
|
|
|
s = db->Get(read_options, "aaa", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("xxx", value);
|
|
|
|
delete txn1;
|
|
txn_options.expiration = 6000000; // 100 minutes
|
|
txn_options.lock_timeout = 1; // 1ms
|
|
txn1 = db->BeginTransaction(write_options, txn_options);
|
|
txn1->SetLockTimeout(100);
|
|
|
|
TransactionOptions txn_options2;
|
|
txn_options2.expiration = 10; // 10ms
|
|
Transaction* txn2 = db->BeginTransaction(write_options, txn_options2);
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Put("a", "2");
|
|
ASSERT_OK(s);
|
|
|
|
// txn1 has a lock timeout longer than txn2's expiration, so it will win
|
|
s = txn1->Delete("a");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
// txn2 should be expired out since txn1 waiting until its timeout expired.
|
|
s = txn2->Commit();
|
|
ASSERT_TRUE(s.IsExpired());
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
txn_options.expiration = 6000000; // 100 minutes
|
|
txn1 = db->BeginTransaction(write_options, txn_options);
|
|
txn_options2.expiration = 100000000;
|
|
txn2 = db->BeginTransaction(write_options, txn_options2);
|
|
|
|
s = txn1->Delete("asdf");
|
|
ASSERT_OK(s);
|
|
|
|
// txn2 has a smaller lock timeout than txn1's expiration, so it will time out
|
|
s = txn2->Delete("asdf");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
ASSERT_EQ(s.ToString(), "Operation timed out: Timeout waiting to lock key");
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Put("asdf", "asdf");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Get(read_options, "asdf", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("asdf", value);
|
|
|
|
delete txn1;
|
|
delete txn2;
|
|
}
|
|
|
|
TEST_F(TransactionTest, SingleDeleteTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
Transaction* txn = db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
s = txn->SingleDelete("A");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn;
|
|
|
|
txn = db->BeginTransaction(write_options);
|
|
|
|
s = txn->SingleDelete("A");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("A", "a");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("a", value);
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn;
|
|
|
|
s = db->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("a", value);
|
|
|
|
txn = db->BeginTransaction(write_options);
|
|
|
|
s = txn->SingleDelete("A");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn;
|
|
|
|
s = db->Get(read_options, "A", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
txn = db->BeginTransaction(write_options);
|
|
Transaction* txn2 = db->BeginTransaction(write_options);
|
|
txn2->SetSnapshot();
|
|
|
|
s = txn->Put("A", "a");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Put("A", "a2");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->SingleDelete("A");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->SingleDelete("B");
|
|
ASSERT_OK(s);
|
|
|
|
// According to db.h, doing a SingleDelete on a key that has been
|
|
// overwritten will have undefinied behavior. So it is unclear what the
|
|
// result of fetching "A" should be. The current implementation will
|
|
// return NotFound in this case.
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn2->Put("B", "b");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn;
|
|
|
|
// According to db.h, doing a SingleDelete on a key that has been
|
|
// overwritten will have undefinied behavior. So it is unclear what the
|
|
// result of fetching "A" should be. The current implementation will
|
|
// return NotFound in this case.
|
|
s = db->Get(read_options, "A", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = db->Get(read_options, "B", &value);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
}
|
|
|
|
TEST_F(TransactionTest, MergeTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
Transaction* txn = db->BeginTransaction(write_options, TransactionOptions());
|
|
ASSERT_TRUE(txn);
|
|
|
|
s = db->Put(write_options, "A", "a0");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Merge("A", "1");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Merge("A", "2");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_TRUE(s.IsMergeInProgress());
|
|
|
|
s = txn->Put("A", "a");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("a", value);
|
|
|
|
s = txn->Merge("A", "3");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn->Get(read_options, "A", &value);
|
|
ASSERT_TRUE(s.IsMergeInProgress());
|
|
|
|
TransactionOptions txn_options;
|
|
txn_options.lock_timeout = 1; // 1 ms
|
|
Transaction* txn2 = db->BeginTransaction(write_options, txn_options);
|
|
ASSERT_TRUE(txn2);
|
|
|
|
// verify that txn has "A" locked
|
|
s = txn2->Merge("A", "4");
|
|
ASSERT_TRUE(s.IsTimedOut());
|
|
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn;
|
|
|
|
s = db->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("a,3", value);
|
|
}
|
|
|
|
TEST_F(TransactionTest, DeferSnapshotTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
s = db->Put(write_options, "A", "a0");
|
|
ASSERT_OK(s);
|
|
|
|
Transaction* txn1 = db->BeginTransaction(write_options);
|
|
Transaction* txn2 = db->BeginTransaction(write_options);
|
|
|
|
txn1->SetSnapshotOnNextOperation();
|
|
auto snapshot = txn1->GetSnapshot();
|
|
ASSERT_FALSE(snapshot);
|
|
|
|
s = txn2->Put("A", "a2");
|
|
ASSERT_OK(s);
|
|
s = txn2->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn2;
|
|
|
|
s = txn1->GetForUpdate(read_options, "A", &value);
|
|
// Should not conflict with txn2 since snapshot wasn't set until
|
|
// GetForUpdate was called.
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("a2", value);
|
|
|
|
s = txn1->Put("A", "a1");
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Put(write_options, "B", "b0");
|
|
ASSERT_OK(s);
|
|
|
|
// Cannot lock B since it was written after the snapshot was set
|
|
s = txn1->Put("B", "b1");
|
|
ASSERT_TRUE(s.IsBusy());
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn1;
|
|
|
|
s = db->Get(read_options, "A", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("a1", value);
|
|
|
|
s = db->Get(read_options, "B", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("b0", value);
|
|
}
|
|
|
|
TEST_F(TransactionTest, DeferSnapshotTest2) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
Transaction* txn1 = db->BeginTransaction(write_options);
|
|
|
|
txn1->SetSnapshot();
|
|
|
|
s = txn1->Put("A", "a1");
|
|
ASSERT_OK(s);
|
|
|
|
s = db->Put(write_options, "C", "c0");
|
|
ASSERT_OK(s);
|
|
s = db->Put(write_options, "D", "d0");
|
|
ASSERT_OK(s);
|
|
|
|
snapshot_read_options.snapshot = txn1->GetSnapshot();
|
|
|
|
txn1->SetSnapshotOnNextOperation();
|
|
|
|
s = txn1->Get(snapshot_read_options, "C", &value);
|
|
// Snapshot was set before C was written
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
s = txn1->Get(snapshot_read_options, "D", &value);
|
|
// Snapshot was set before D was written
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
// Snapshot should not have changed yet.
|
|
snapshot_read_options.snapshot = txn1->GetSnapshot();
|
|
|
|
s = txn1->Get(snapshot_read_options, "C", &value);
|
|
// Snapshot was set before C was written
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
s = txn1->Get(snapshot_read_options, "D", &value);
|
|
// Snapshot was set before D was written
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
|
|
s = txn1->GetForUpdate(read_options, "C", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("c0", value);
|
|
|
|
s = db->Put(write_options, "D", "d00");
|
|
ASSERT_OK(s);
|
|
|
|
// Snapshot is now set
|
|
snapshot_read_options.snapshot = txn1->GetSnapshot();
|
|
s = txn1->Get(snapshot_read_options, "D", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("d0", value);
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
delete txn1;
|
|
}
|
|
|
|
TEST_F(TransactionTest, DeferSnapshotSavePointTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
Transaction* txn1 = db->BeginTransaction(write_options);
|
|
|
|
txn1->SetSavePoint(); // 1
|
|
|
|
s = db->Put(write_options, "T", "1");
|
|
ASSERT_OK(s);
|
|
|
|
txn1->SetSnapshotOnNextOperation();
|
|
|
|
s = db->Put(write_options, "T", "2");
|
|
ASSERT_OK(s);
|
|
|
|
txn1->SetSavePoint(); // 2
|
|
|
|
s = db->Put(write_options, "T", "3");
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Put("A", "a");
|
|
ASSERT_OK(s);
|
|
|
|
txn1->SetSavePoint(); // 3
|
|
|
|
s = db->Put(write_options, "T", "4");
|
|
ASSERT_OK(s);
|
|
|
|
txn1->SetSnapshot();
|
|
txn1->SetSnapshotOnNextOperation();
|
|
|
|
txn1->SetSavePoint(); // 4
|
|
|
|
s = db->Put(write_options, "T", "5");
|
|
ASSERT_OK(s);
|
|
|
|
snapshot_read_options.snapshot = txn1->GetSnapshot();
|
|
s = txn1->Get(snapshot_read_options, "T", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("4", value);
|
|
|
|
s = txn1->Put("A", "a1");
|
|
ASSERT_OK(s);
|
|
|
|
snapshot_read_options.snapshot = txn1->GetSnapshot();
|
|
s = txn1->Get(snapshot_read_options, "T", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("5", value);
|
|
|
|
s = txn1->RollbackToSavePoint(); // Rollback to 4
|
|
ASSERT_OK(s);
|
|
|
|
snapshot_read_options.snapshot = txn1->GetSnapshot();
|
|
s = txn1->Get(snapshot_read_options, "T", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("4", value);
|
|
|
|
s = txn1->RollbackToSavePoint(); // Rollback to 3
|
|
ASSERT_OK(s);
|
|
|
|
snapshot_read_options.snapshot = txn1->GetSnapshot();
|
|
s = txn1->Get(snapshot_read_options, "T", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("3", value);
|
|
|
|
s = txn1->Get(read_options, "T", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("5", value);
|
|
|
|
s = txn1->RollbackToSavePoint(); // Rollback to 2
|
|
ASSERT_OK(s);
|
|
|
|
snapshot_read_options.snapshot = txn1->GetSnapshot();
|
|
ASSERT_FALSE(snapshot_read_options.snapshot);
|
|
s = txn1->Get(snapshot_read_options, "T", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("5", value);
|
|
|
|
s = txn1->Delete("A");
|
|
ASSERT_OK(s);
|
|
|
|
snapshot_read_options.snapshot = txn1->GetSnapshot();
|
|
ASSERT_TRUE(snapshot_read_options.snapshot);
|
|
s = txn1->Get(snapshot_read_options, "T", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("5", value);
|
|
|
|
s = txn1->RollbackToSavePoint(); // Rollback to 1
|
|
ASSERT_OK(s);
|
|
|
|
s = txn1->Delete("A");
|
|
ASSERT_OK(s);
|
|
|
|
snapshot_read_options.snapshot = txn1->GetSnapshot();
|
|
ASSERT_FALSE(snapshot_read_options.snapshot);
|
|
s = txn1->Get(snapshot_read_options, "T", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ("5", value);
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete txn1;
|
|
}
|
|
|
|
TEST_F(TransactionTest, SetSnapshotOnNextOperationWithNotification) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options;
|
|
string value;
|
|
|
|
class Notifier : public TransactionNotifier {
|
|
private:
|
|
const Snapshot** snapshot_ptr_;
|
|
|
|
public:
|
|
explicit Notifier(const Snapshot** snapshot_ptr)
|
|
: snapshot_ptr_(snapshot_ptr) {}
|
|
|
|
void SnapshotCreated(const Snapshot* newSnapshot) {
|
|
*snapshot_ptr_ = newSnapshot;
|
|
}
|
|
};
|
|
|
|
std::shared_ptr<Notifier> notifier =
|
|
std::make_shared<Notifier>(&read_options.snapshot);
|
|
Status s;
|
|
|
|
s = db->Put(write_options, "B", "0");
|
|
ASSERT_OK(s);
|
|
|
|
Transaction* txn1 = db->BeginTransaction(write_options);
|
|
|
|
txn1->SetSnapshotOnNextOperation(notifier);
|
|
ASSERT_FALSE(read_options.snapshot);
|
|
|
|
s = db->Put(write_options, "B", "1");
|
|
ASSERT_OK(s);
|
|
|
|
// A Get does not generate the snapshot
|
|
s = txn1->Get(read_options, "B", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_FALSE(read_options.snapshot);
|
|
ASSERT_EQ(value, "1");
|
|
|
|
// Any other operation does
|
|
s = txn1->Put("A", "0");
|
|
ASSERT_OK(s);
|
|
|
|
// Now change "B".
|
|
s = db->Put(write_options, "B", "2");
|
|
ASSERT_OK(s);
|
|
|
|
// The original value should still be read
|
|
s = txn1->Get(read_options, "B", &value);
|
|
ASSERT_OK(s);
|
|
ASSERT_TRUE(read_options.snapshot);
|
|
ASSERT_EQ(value, "1");
|
|
|
|
s = txn1->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete txn1;
|
|
}
|
|
|
|
TEST_F(TransactionTest, ClearSnapshotTest) {
|
|
WriteOptions write_options;
|
|
ReadOptions read_options, snapshot_read_options;
|
|
string value;
|
|
Status s;
|
|
|
|
s = db->Put(write_options, "foo", "0");
|
|
ASSERT_OK(s);
|
|
|
|
Transaction* txn = db->BeginTransaction(write_options);
|
|
ASSERT_TRUE(txn);
|
|
|
|
s = db->Put(write_options, "foo", "1");
|
|
ASSERT_OK(s);
|
|
|
|
snapshot_read_options.snapshot = txn->GetSnapshot();
|
|
ASSERT_FALSE(snapshot_read_options.snapshot);
|
|
|
|
// No snapshot created yet
|
|
s = txn->Get(snapshot_read_options, "foo", &value);
|
|
ASSERT_EQ(value, "1");
|
|
|
|
txn->SetSnapshot();
|
|
snapshot_read_options.snapshot = txn->GetSnapshot();
|
|
ASSERT_TRUE(snapshot_read_options.snapshot);
|
|
|
|
s = db->Put(write_options, "foo", "2");
|
|
ASSERT_OK(s);
|
|
|
|
// Snapshot was created before change to '2'
|
|
s = txn->Get(snapshot_read_options, "foo", &value);
|
|
ASSERT_EQ(value, "1");
|
|
|
|
txn->ClearSnapshot();
|
|
snapshot_read_options.snapshot = txn->GetSnapshot();
|
|
ASSERT_FALSE(snapshot_read_options.snapshot);
|
|
|
|
// Snapshot has now been cleared
|
|
s = txn->Get(snapshot_read_options, "foo", &value);
|
|
ASSERT_EQ(value, "2");
|
|
|
|
s = txn->Commit();
|
|
ASSERT_OK(s);
|
|
|
|
delete txn;
|
|
}
|
|
|
|
TEST_F(TransactionTest, ToggleAutoCompactionTest) {
|
|
Status s;
|
|
|
|
TransactionOptions txn_options;
|
|
ColumnFamilyHandle *cfa, *cfb;
|
|
ColumnFamilyOptions cf_options;
|
|
|
|
// Create 2 new column families
|
|
s = db->CreateColumnFamily(cf_options, "CFA", &cfa);
|
|
ASSERT_OK(s);
|
|
s = db->CreateColumnFamily(cf_options, "CFB", &cfb);
|
|
ASSERT_OK(s);
|
|
|
|
delete cfa;
|
|
delete cfb;
|
|
delete db;
|
|
|
|
// 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()));
|
|
|
|
ColumnFamilyOptions* cf_opt_default = &column_families[0].options;
|
|
ColumnFamilyOptions* cf_opt_cfa = &column_families[1].options;
|
|
ColumnFamilyOptions* cf_opt_cfb = &column_families[2].options;
|
|
cf_opt_default->disable_auto_compactions = false;
|
|
cf_opt_cfa->disable_auto_compactions = true;
|
|
cf_opt_cfb->disable_auto_compactions = false;
|
|
|
|
std::vector<ColumnFamilyHandle*> handles;
|
|
|
|
s = TransactionDB::Open(options, txn_db_options, dbname, column_families,
|
|
&handles, &db);
|
|
ASSERT_OK(s);
|
|
|
|
auto cfh_default = reinterpret_cast<ColumnFamilyHandleImpl*>(handles[0]);
|
|
auto opt_default = *cfh_default->cfd()->GetLatestMutableCFOptions();
|
|
|
|
auto cfh_a = reinterpret_cast<ColumnFamilyHandleImpl*>(handles[1]);
|
|
auto opt_a = *cfh_a->cfd()->GetLatestMutableCFOptions();
|
|
|
|
auto cfh_b = reinterpret_cast<ColumnFamilyHandleImpl*>(handles[2]);
|
|
auto opt_b = *cfh_b->cfd()->GetLatestMutableCFOptions();
|
|
|
|
ASSERT_EQ(opt_default.disable_auto_compactions, false);
|
|
ASSERT_EQ(opt_a.disable_auto_compactions, true);
|
|
ASSERT_EQ(opt_b.disable_auto_compactions, false);
|
|
|
|
for (auto handle : handles) {
|
|
delete handle;
|
|
}
|
|
}
|
|
|
|
} // 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 Transactions are not supported in ROCKSDB_LITE\n");
|
|
return 0;
|
|
}
|
|
|
|
#endif // ROCKSDB_LITE
|