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/**
* Copyright (C) 2017 MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/dbdirectclient.h"
#include "mongo/db/logical_session_id.h"
#include "mongo/db/repl/mock_repl_coord_server_fixture.h"
#include "mongo/db/repl/replication_process.h"
#include "mongo/db/s/session_catalog_migration_source.h"
#include "mongo/db/session.h"
#include "mongo/db/session_txn_record_gen.h"
#include "mongo/executor/remote_command_request.h"
#include "mongo/unittest/unittest.h"
namespace mongo {
using executor::RemoteCommandRequest;
namespace {
class SessionCatalogMigrationSourceTest : public MockReplCoordServerFixture {};
const NamespaceString kNs("a.b");
/**
* Creates an OplogEntry with given parameters and preset defaults for this test suite.
*/
repl::OplogEntry makeOplogEntry(repl::OpTime opTime,
repl::OpTypeEnum opType,
NamespaceString nss,
BSONObj object,
boost::optional<BSONObj> object2,
boost::optional<Date_t> wallClockTime,
StmtId stmtId,
repl::OpTime prevWriteOpTimeInTransaction,
boost::optional<repl::OpTime> preImageOpTime,
boost::optional<repl::OpTime> postImageOpTime) {
return repl::OplogEntry(
opTime, // optime
0, // hash
opType, // opType
nss, // namespace
boost::none, // uuid
boost::none, // fromMigrate
repl::OplogEntry::kOplogVersion, // version
object, // o
object2, // o2
{}, // sessionInfo
boost::none, // upsert
wallClockTime, // wall clock time
stmtId, // statement id
prevWriteOpTimeInTransaction, // optime of previous write within same transaction
preImageOpTime, // pre-image optime
postImageOpTime); // post-image optime
}
repl::OplogEntry makeOplogEntry(repl::OpTime opTime,
repl::OpTypeEnum opType,
BSONObj object,
boost::optional<BSONObj> object2,
boost::optional<Date_t> wallClockTime,
StmtId stmtId,
repl::OpTime prevWriteOpTimeInTransaction,
boost::optional<repl::OpTime> preImageOpTime = boost::none,
boost::optional<repl::OpTime> postImageOpTime = boost::none) {
return makeOplogEntry(opTime,
opType,
kNs,
object,
object2,
wallClockTime,
stmtId,
prevWriteOpTimeInTransaction,
preImageOpTime,
postImageOpTime);
}
TEST_F(SessionCatalogMigrationSourceTest, NoSessionsToTransferShouldNotHaveOplog) {
SessionCatalogMigrationSource migrationSource(opCtx(), kNs);
ASSERT_FALSE(migrationSource.fetchNextOplog(opCtx()));
ASSERT_FALSE(migrationSource.hasMoreOplog());
}
TEST_F(SessionCatalogMigrationSourceTest, OneSessionWithTwoWrites) {
auto entry1 = makeOplogEntry(
repl::OpTime(Timestamp(52, 345), 2), // optime
repl::OpTypeEnum::kInsert, // op type
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
0, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
insertOplogEntry(entry1);
auto entry2 =
makeOplogEntry(repl::OpTime(Timestamp(67, 54801), 2), // optime
repl::OpTypeEnum::kInsert, // op type
BSON("y" << 50), // o
boost::none, // o2
Date_t::now(), // wall clock time
1, // statement id
entry1.getOpTime()); // optime of previous write within same transaction
insertOplogEntry(entry2);
SessionTxnRecord sessionRecord;
sessionRecord.setSessionId(makeLogicalSessionIdForTest());
sessionRecord.setTxnNum(1);
sessionRecord.setLastWriteOpTime(entry2.getOpTime());
sessionRecord.setLastWriteDate(*entry2.getWallClockTime());
DBDirectClient client(opCtx());
client.insert(NamespaceString::kSessionTransactionsTableNamespace.ns(), sessionRecord.toBSON());
SessionCatalogMigrationSource migrationSource(opCtx(), kNs);
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
{
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_FALSE(nextOplogResult.shouldWaitForMajority);
// Cannot compare directly because of SERVER-31356
ASSERT_BSONOBJ_EQ(entry2.toBSON(), nextOplogResult.oplog->toBSON());
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
}
{
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_FALSE(nextOplogResult.shouldWaitForMajority);
// Cannot compare directly because of SERVER-31356
ASSERT_BSONOBJ_EQ(entry1.toBSON(), nextOplogResult.oplog->toBSON());
}
ASSERT_FALSE(migrationSource.fetchNextOplog(opCtx()));
ASSERT_FALSE(migrationSource.hasMoreOplog());
}
TEST_F(SessionCatalogMigrationSourceTest, TwoSessionWithTwoWrites) {
auto entry1a = makeOplogEntry(
repl::OpTime(Timestamp(52, 345), 2), // optime
repl::OpTypeEnum::kInsert, // op type
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
0, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
auto entry1b =
makeOplogEntry(repl::OpTime(Timestamp(67, 54801), 2), // optime
repl::OpTypeEnum::kInsert, // op type
BSON("y" << 50), // o
boost::none, // o2
Date_t::now(), // wall clock time
1, // statement id
entry1a.getOpTime()); // optime of previous write within same transaction
SessionTxnRecord sessionRecord1;
sessionRecord1.setSessionId(makeLogicalSessionIdForTest());
sessionRecord1.setTxnNum(1);
sessionRecord1.setLastWriteOpTime(entry1b.getOpTime());
sessionRecord1.setLastWriteDate(*entry1b.getWallClockTime());
DBDirectClient client(opCtx());
client.insert(NamespaceString::kSessionTransactionsTableNamespace.ns(),
sessionRecord1.toBSON());
auto entry2a = makeOplogEntry(
repl::OpTime(Timestamp(43, 12), 2), // optime
repl::OpTypeEnum::kDelete, // op type
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
3, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
auto entry2b =
makeOplogEntry(repl::OpTime(Timestamp(789, 13), 2), // optime
repl::OpTypeEnum::kDelete, // op type
BSON("y" << 50), // o
boost::none, // o2
Date_t::now(), // wall clock time
4, // statement id
entry2a.getOpTime()); // optime of previous write within same transaction
SessionTxnRecord sessionRecord2;
sessionRecord2.setSessionId(makeLogicalSessionIdForTest());
sessionRecord2.setTxnNum(1);
sessionRecord2.setLastWriteOpTime(entry2b.getOpTime());
sessionRecord2.setLastWriteDate(*entry2b.getWallClockTime());
client.insert(NamespaceString::kSessionTransactionsTableNamespace.ns(),
sessionRecord2.toBSON());
insertOplogEntry(entry2a);
insertOplogEntry(entry1a);
insertOplogEntry(entry1b);
insertOplogEntry(entry2b);
SessionCatalogMigrationSource migrationSource(opCtx(), kNs);
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
auto checkNextBatch = [this, &migrationSource](const repl::OplogEntry& firstExpectedOplog,
const repl::OplogEntry& secondExpectedOplog) {
{
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_FALSE(nextOplogResult.shouldWaitForMajority);
// Cannot compare directly because of SERVER-31356
ASSERT_BSONOBJ_EQ(firstExpectedOplog.toBSON(), nextOplogResult.oplog->toBSON());
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
}
{
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_FALSE(nextOplogResult.shouldWaitForMajority);
ASSERT_BSONOBJ_EQ(secondExpectedOplog.toBSON(), nextOplogResult.oplog->toBSON());
}
};
if (sessionRecord1.getSessionId().toBSON().woCompare(sessionRecord2.getSessionId().toBSON()) <
0) {
checkNextBatch(entry2b, entry2a);
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
ASSERT_TRUE(migrationSource.hasMoreOplog());
checkNextBatch(entry1b, entry1a);
} else {
checkNextBatch(entry1b, entry1a);
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
ASSERT_TRUE(migrationSource.hasMoreOplog());
checkNextBatch(entry2b, entry2a);
}
}
// It is currently not possible to have 2 findAndModify operations in one transaction, but this
// will test the oplog buffer more.
TEST_F(SessionCatalogMigrationSourceTest, OneSessionWithFindAndModifyPreImageAndPostImage) {
auto entry1 = makeOplogEntry(
repl::OpTime(Timestamp(52, 345), 2), // optime
repl::OpTypeEnum::kNoop, // op type
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
0, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
insertOplogEntry(entry1);
auto entry2 = makeOplogEntry(
repl::OpTime(Timestamp(52, 346), 2), // optime
repl::OpTypeEnum::kDelete, // op type
BSON("y" << 50), // o
boost::none, // o2
Date_t::now(), // wall clock time
1, // statement id
repl::OpTime(Timestamp(0, 0), 0), // optime of previous write within same transaction
entry1.getOpTime()); // pre-image optime
insertOplogEntry(entry2);
auto entry3 = makeOplogEntry(
repl::OpTime(Timestamp(73, 5), 2), // optime
repl::OpTypeEnum::kNoop, // op type
BSON("x" << 20), // o
boost::none, // o2
Date_t::now(), // wall clock time
2, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
insertOplogEntry(entry3);
auto entry4 =
makeOplogEntry(repl::OpTime(Timestamp(73, 6), 2), // optime
repl::OpTypeEnum::kUpdate, // op type
BSON("x" << 19), // o
BSON("$inc" << BSON("x" << 1)), // o2
Date_t::now(), // wall clock time
3, // statement id
entry2.getOpTime(), // optime of previous write within same transaction
boost::none, // pre-image optime
entry3.getOpTime()); // post-image optime
insertOplogEntry(entry4);
SessionTxnRecord sessionRecord;
sessionRecord.setSessionId(makeLogicalSessionIdForTest());
sessionRecord.setTxnNum(1);
sessionRecord.setLastWriteOpTime(entry4.getOpTime());
sessionRecord.setLastWriteDate(*entry4.getWallClockTime());
DBDirectClient client(opCtx());
client.insert(NamespaceString::kSessionTransactionsTableNamespace.ns(), sessionRecord.toBSON());
SessionCatalogMigrationSource migrationSource(opCtx(), kNs);
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
auto expectedSequece = {entry3, entry4, entry1, entry2};
for (auto oplog : expectedSequece) {
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_FALSE(nextOplogResult.shouldWaitForMajority);
// Cannot compare directly because of SERVER-31356
ASSERT_BSONOBJ_EQ(oplog.toBSON(), nextOplogResult.oplog->toBSON());
migrationSource.fetchNextOplog(opCtx());
}
ASSERT_FALSE(migrationSource.hasMoreOplog());
}
TEST_F(SessionCatalogMigrationSourceTest, OplogWithOtherNsShouldBeIgnored) {
auto entry1 = makeOplogEntry(
repl::OpTime(Timestamp(52, 345), 2), // optime
repl::OpTypeEnum::kInsert, // op type
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
0, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
insertOplogEntry(entry1);
SessionTxnRecord sessionRecord1;
sessionRecord1.setSessionId(makeLogicalSessionIdForTest());
sessionRecord1.setTxnNum(1);
sessionRecord1.setLastWriteOpTime(entry1.getOpTime());
sessionRecord1.setLastWriteDate(*entry1.getWallClockTime());
DBDirectClient client(opCtx());
client.insert(NamespaceString::kSessionTransactionsTableNamespace.ns(),
sessionRecord1.toBSON());
auto entry2 = makeOplogEntry(
repl::OpTime(Timestamp(53, 12), 2), // optime
repl::OpTypeEnum::kDelete, // op type
NamespaceString("x.y"), // namespace
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
1, // statement id
repl::OpTime(Timestamp(0, 0), 0), // optime of previous write within same transaction
boost::none, // pre-image optime
boost::none); // post-image optime
insertOplogEntry(entry2);
SessionTxnRecord sessionRecord2;
sessionRecord2.setSessionId(makeLogicalSessionIdForTest());
sessionRecord2.setTxnNum(1);
sessionRecord2.setLastWriteOpTime(entry2.getOpTime());
sessionRecord2.setLastWriteDate(*entry2.getWallClockTime());
client.insert(NamespaceString::kSessionTransactionsTableNamespace.ns(),
sessionRecord2.toBSON());
SessionCatalogMigrationSource migrationSource(opCtx(), kNs);
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_FALSE(nextOplogResult.shouldWaitForMajority);
// Cannot compare directly because of SERVER-31356
ASSERT_BSONOBJ_EQ(entry1.toBSON(), nextOplogResult.oplog->toBSON());
ASSERT_FALSE(migrationSource.fetchNextOplog(opCtx()));
ASSERT_FALSE(migrationSource.hasMoreOplog());
}
TEST_F(SessionCatalogMigrationSourceTest, SessionDumpWithMultipleNewWrites) {
auto entry1 = makeOplogEntry(
repl::OpTime(Timestamp(52, 345), 2), // optime
repl::OpTypeEnum::kInsert, // op type
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
0, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
insertOplogEntry(entry1);
SessionTxnRecord sessionRecord1;
sessionRecord1.setSessionId(makeLogicalSessionIdForTest());
sessionRecord1.setTxnNum(1);
sessionRecord1.setLastWriteOpTime(entry1.getOpTime());
sessionRecord1.setLastWriteDate(*entry1.getWallClockTime());
DBDirectClient client(opCtx());
client.insert(NamespaceString::kSessionTransactionsTableNamespace.ns(),
sessionRecord1.toBSON());
auto entry2 = makeOplogEntry(
repl::OpTime(Timestamp(53, 12), 2), // optime
repl::OpTypeEnum::kDelete, // op type
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
1, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
insertOplogEntry(entry2);
auto entry3 = makeOplogEntry(
repl::OpTime(Timestamp(55, 12), 2), // optime
repl::OpTypeEnum::kInsert, // op type
BSON("z" << 40), // o
boost::none, // o2
Date_t::now(), // wall clock time
2, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
insertOplogEntry(entry3);
SessionCatalogMigrationSource migrationSource(opCtx(), kNs);
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
migrationSource.notifyNewWriteOpTime(entry2.getOpTime());
migrationSource.notifyNewWriteOpTime(entry3.getOpTime());
{
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_FALSE(nextOplogResult.shouldWaitForMajority);
// Cannot compare directly because of SERVER-31356
ASSERT_BSONOBJ_EQ(entry1.toBSON(), nextOplogResult.oplog->toBSON());
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
}
{
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_TRUE(nextOplogResult.shouldWaitForMajority);
ASSERT_BSONOBJ_EQ(entry2.toBSON(), nextOplogResult.oplog->toBSON());
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
}
{
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_TRUE(nextOplogResult.shouldWaitForMajority);
ASSERT_BSONOBJ_EQ(entry3.toBSON(), nextOplogResult.oplog->toBSON());
}
ASSERT_FALSE(migrationSource.fetchNextOplog(opCtx()));
ASSERT_FALSE(migrationSource.hasMoreOplog());
}
TEST_F(SessionCatalogMigrationSourceTest, ShouldAssertIfOplogCannotBeFound) {
SessionCatalogMigrationSource migrationSource(opCtx(), kNs);
ASSERT_FALSE(migrationSource.fetchNextOplog(opCtx()));
migrationSource.notifyNewWriteOpTime(repl::OpTime(Timestamp(100, 3), 1));
ASSERT_TRUE(migrationSource.hasMoreOplog());
ASSERT_THROWS(migrationSource.fetchNextOplog(opCtx()), AssertionException);
}
TEST_F(SessionCatalogMigrationSourceTest, ShouldBeAbleInsertNewWritesAfterBufferWasDepleted) {
SessionCatalogMigrationSource migrationSource(opCtx(), kNs);
ASSERT_FALSE(migrationSource.fetchNextOplog(opCtx()));
{
auto entry = makeOplogEntry(
repl::OpTime(Timestamp(52, 345), 2), // optime
repl::OpTypeEnum::kInsert, // op type
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
0, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
insertOplogEntry(entry);
migrationSource.notifyNewWriteOpTime(entry.getOpTime());
ASSERT_TRUE(migrationSource.hasMoreOplog());
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_TRUE(nextOplogResult.shouldWaitForMajority);
// Cannot compare directly because of SERVER-31356
ASSERT_BSONOBJ_EQ(entry.toBSON(), nextOplogResult.oplog->toBSON());
ASSERT_FALSE(migrationSource.fetchNextOplog(opCtx()));
ASSERT_FALSE(migrationSource.hasMoreOplog());
}
{
auto entry = makeOplogEntry(
repl::OpTime(Timestamp(53, 12), 2), // optime
repl::OpTypeEnum::kDelete, // op type
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
1, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
insertOplogEntry(entry);
migrationSource.notifyNewWriteOpTime(entry.getOpTime());
ASSERT_TRUE(migrationSource.hasMoreOplog());
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_TRUE(nextOplogResult.shouldWaitForMajority);
ASSERT_BSONOBJ_EQ(entry.toBSON(), nextOplogResult.oplog->toBSON());
ASSERT_FALSE(migrationSource.fetchNextOplog(opCtx()));
ASSERT_FALSE(migrationSource.hasMoreOplog());
}
{
auto entry = makeOplogEntry(
repl::OpTime(Timestamp(55, 12), 2), // optime
repl::OpTypeEnum::kInsert, // op type
BSON("z" << 40), // o
boost::none, // o2
Date_t::now(), // wall clock time
2, // statement id
repl::OpTime(Timestamp(0, 0), 0)); // optime of previous write within same transaction
insertOplogEntry(entry);
migrationSource.notifyNewWriteOpTime(entry.getOpTime());
ASSERT_TRUE(migrationSource.hasMoreOplog());
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_TRUE(nextOplogResult.shouldWaitForMajority);
ASSERT_BSONOBJ_EQ(entry.toBSON(), nextOplogResult.oplog->toBSON());
ASSERT_FALSE(migrationSource.fetchNextOplog(opCtx()));
ASSERT_FALSE(migrationSource.hasMoreOplog());
}
}
TEST_F(SessionCatalogMigrationSourceTest, ReturnsDeadEndSentinelForIncompleteHistory) {
auto entry = makeOplogEntry(
repl::OpTime(Timestamp(52, 345), 2), // optime
repl::OpTypeEnum::kInsert, // op type
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
0, // statement id
repl::OpTime(Timestamp(40, 1), 2)); // optime of previous write within same transaction
insertOplogEntry(entry);
const auto sessionId = makeLogicalSessionIdForTest();
SessionTxnRecord sessionRecord;
sessionRecord.setSessionId(sessionId);
sessionRecord.setTxnNum(31);
sessionRecord.setLastWriteOpTime(entry.getOpTime());
sessionRecord.setLastWriteDate(*entry.getWallClockTime());
DBDirectClient client(opCtx());
client.insert(NamespaceString::kSessionTransactionsTableNamespace.ns(), sessionRecord.toBSON());
SessionCatalogMigrationSource migrationSource(opCtx(), kNs);
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
{
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_FALSE(nextOplogResult.shouldWaitForMajority);
// Cannot compare directly because of SERVER-31356
ASSERT_BSONOBJ_EQ(entry.toBSON(), nextOplogResult.oplog->toBSON());
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
}
{
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_FALSE(nextOplogResult.shouldWaitForMajority);
auto oplog = *nextOplogResult.oplog;
ASSERT_TRUE(oplog.getObject2());
ASSERT_BSONOBJ_EQ(Session::kDeadEndSentinel, *oplog.getObject2());
ASSERT_TRUE(oplog.getStatementId());
ASSERT_EQ(kIncompleteHistoryStmtId, *oplog.getStatementId());
auto sessionInfo = oplog.getOperationSessionInfo();
ASSERT_TRUE(sessionInfo.getSessionId());
ASSERT_EQ(sessionId, *sessionInfo.getSessionId());
ASSERT_TRUE(sessionInfo.getTxnNumber());
ASSERT_EQ(31, *sessionInfo.getTxnNumber());
}
ASSERT_FALSE(migrationSource.fetchNextOplog(opCtx()));
ASSERT_FALSE(migrationSource.hasMoreOplog());
}
TEST_F(SessionCatalogMigrationSourceTest, ShouldAssertWhenRollbackDetected) {
auto entry = makeOplogEntry(
repl::OpTime(Timestamp(52, 345), 2), // optime
repl::OpTypeEnum::kInsert, // op type
BSON("x" << 30), // o
boost::none, // o2
Date_t::now(), // wall clock time
0, // statement id
repl::OpTime(Timestamp(40, 1), 2)); // optime of previous write within same transaction
insertOplogEntry(entry);
const auto sessionId = makeLogicalSessionIdForTest();
SessionTxnRecord sessionRecord;
sessionRecord.setSessionId(sessionId);
sessionRecord.setTxnNum(31);
sessionRecord.setLastWriteOpTime(entry.getOpTime());
sessionRecord.setLastWriteDate(*entry.getWallClockTime());
DBDirectClient client(opCtx());
client.insert(NamespaceString::kSessionTransactionsTableNamespace.ns(), sessionRecord.toBSON());
SessionCatalogMigrationSource migrationSource(opCtx(), kNs);
ASSERT_TRUE(migrationSource.fetchNextOplog(opCtx()));
{
ASSERT_TRUE(migrationSource.hasMoreOplog());
auto nextOplogResult = migrationSource.getLastFetchedOplog();
ASSERT_FALSE(nextOplogResult.shouldWaitForMajority);
// Cannot compare directly because of SERVER-31356
ASSERT_BSONOBJ_EQ(entry.toBSON(), nextOplogResult.oplog->toBSON());
}
ASSERT_OK(repl::ReplicationProcess::get(opCtx())->incrementRollbackID(opCtx()));
ASSERT_THROWS(migrationSource.fetchNextOplog(opCtx()), AssertionException);
ASSERT_TRUE(migrationSource.hasMoreOplog());
}
} // namespace
} // namespace mongo
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