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/**
* Copyright (C) 2014 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 <boost/thread.hpp>
#include <boost/scoped_ptr.hpp>
#include "mongo/base/status.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/repl/check_quorum_for_config_change.h"
#include "mongo/db/repl/network_interface_mock.h"
#include "mongo/db/repl/replica_set_config.h"
#include "mongo/db/repl/replication_executor.h"
#include "mongo/stdx/functional.h"
#include "mongo/unittest/unittest.h"
#define ASSERT_REASON_CONTAINS(STATUS, PATTERN) do { \
const mongo::Status s_ = (STATUS); \
ASSERT_FALSE(s_.reason().find(PATTERN) == std::string::npos) << \
#STATUS ".reason() == " << s_.reason(); \
} while (false)
#define ASSERT_NOT_REASON_CONTAINS(STATUS, PATTERN) do { \
const mongo::Status s_ = (STATUS); \
ASSERT_TRUE(s_.reason().find(PATTERN) == std::string::npos) << \
#STATUS ".reason() == " << s_.reason(); \
} while (false)
namespace mongo {
namespace repl {
namespace {
typedef ReplicationExecutor::RemoteCommandRequest RemoteCommandRequest;
class CheckQuorumTest : public mongo::unittest::Test {
protected:
NetworkInterfaceMock* _net;
boost::scoped_ptr<ReplicationExecutor> _executor;
boost::scoped_ptr<boost::thread> _executorThread;
private:
void setUp();
void tearDown();
};
class CheckQuorumForInitiate : public CheckQuorumTest {};
class CheckQuorumForReconfig : public CheckQuorumTest {};
void CheckQuorumTest::setUp() {
_net = new NetworkInterfaceMock;
_executor.reset(new ReplicationExecutor(_net));
_executorThread.reset(new boost::thread(stdx::bind(&ReplicationExecutor::run,
_executor.get())));
}
void CheckQuorumTest::tearDown() {
_net->unblockAll();
_executor->shutdown();
_executorThread->join();
}
ReplicaSetConfig assertMakeRSConfig(const BSONObj& configBson) {
ReplicaSetConfig config;
ASSERT_OK(config.initialize(configBson));
ASSERT_OK(config.validate());
return config;
}
TEST_F(CheckQuorumForInitiate, ValidSingleNodeSet) {
ReplicaSetConfig config = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 1 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1"))));
ASSERT_OK(checkQuorumForInitiate(_executor.get(), config, 0));
}
TEST_F(CheckQuorumForInitiate, QuorumCheckCanceledByShutdown) {
_executor->shutdown();
ReplicaSetConfig config = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 1 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1"))));
ASSERT_EQUALS(ErrorCodes::ShutdownInProgress,
checkQuorumForInitiate(_executor.get(), config, 0));
}
TEST_F(CheckQuorumForInitiate, QuorumCheckFailedDueToSeveralDownNodes) {
// In this test, "we" are host "h3:1". All other nodes time out on
// their heartbeat request, and so the quorum check for initiate
// will fail because some members were unavailable.
ReplicaSetConfig config = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 1 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1:1") <<
BSON("_id" << 2 << "host" << "h2:1") <<
BSON("_id" << 3 << "host" << "h3:1") <<
BSON("_id" << 4 << "host" << "h4:1") <<
BSON("_id" << 5 << "host" << "h5:1"))));
Status status = checkQuorumForInitiate(_executor.get(), config, 2);
ASSERT_EQUALS(ErrorCodes::NodeNotFound, status);
ASSERT_REASON_CONTAINS(
status, "Could not contact the following nodes during replica set initiation");
ASSERT_REASON_CONTAINS(status, "h1:1");
ASSERT_REASON_CONTAINS(status, "h2:1");
ASSERT_NOT_REASON_CONTAINS(status, "h3:1");
ASSERT_REASON_CONTAINS(status, "h4:1");
ASSERT_REASON_CONTAINS(status, "h5:1");
}
const BSONObj makeHeartbeatRequest(const ReplicaSetConfig& rsConfig, int myConfigIndex) {
const MemberConfig& myConfig = rsConfig.getMemberAt(myConfigIndex);
return BSON(
"replSetHeartbeat" << rsConfig.getReplSetName() <<
"v" << rsConfig.getConfigVersion() <<
"pv" << 1 <<
"checkEmpty" << (rsConfig.getConfigVersion() == 1) <<
"from" << myConfig.getHostAndPort().toString() <<
"fromId" << myConfig.getId());
}
TEST_F(CheckQuorumForInitiate, QuorumCheckSuccessForFiveNodes) {
// In this test, "we" are host "h3:1". All nodes respond successfully to their heartbeat
// requests, and the quorum check succeeds.
const ReplicaSetConfig rsConfig = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 1 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1:1") <<
BSON("_id" << 2 << "host" << "h2:1") <<
BSON("_id" << 3 << "host" << "h3:1") <<
BSON("_id" << 4 << "host" << "h4:1") <<
BSON("_id" << 5 << "host" << "h5:1"))));
const int myConfigIndex = 2;
const BSONObj hbRequest = makeHeartbeatRequest(rsConfig, myConfigIndex);
_net->addResponse(RemoteCommandRequest(HostAndPort("h1", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h2", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h4", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h5", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
ASSERT_OK(checkQuorumForInitiate(_executor.get(), rsConfig, myConfigIndex));
}
TEST_F(CheckQuorumForInitiate, QuorumCheckFailedDueToOneDownNode) {
// In this test, "we" are host "h3:1". All nodes except "h2:1" respond
// successfully to their heartbeat requests, but quorum check fails because
// all nodes must be available for initiate. This is so even though "h2"
// is neither voting nor electable.
const ReplicaSetConfig rsConfig = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 1 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1:1") <<
BSON("_id" << 2 << "host" << "h2:1" <<
"priority" << 0 << "votes" << 0) <<
BSON("_id" << 3 << "host" << "h3:1") <<
BSON("_id" << 4 << "host" << "h4:1") <<
BSON("_id" << 5 << "host" << "h5:1") <<
BSON("_id" << 6 << "host" << "h6:1"))));
const int myConfigIndex = 2;
const BSONObj hbRequest = makeHeartbeatRequest(rsConfig, myConfigIndex);
_net->addResponse(RemoteCommandRequest(HostAndPort("h1", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h4", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h5", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h6", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
Status status = checkQuorumForInitiate(_executor.get(), rsConfig, myConfigIndex);
ASSERT_EQUALS(ErrorCodes::NodeNotFound, status);
ASSERT_REASON_CONTAINS(
status, "Could not contact the following nodes during replica set initiation");
ASSERT_NOT_REASON_CONTAINS(status, "h1:1");
ASSERT_REASON_CONTAINS(status, "h2:1");
ASSERT_NOT_REASON_CONTAINS(status, "h3:1");
ASSERT_NOT_REASON_CONTAINS(status, "h4:1");
ASSERT_NOT_REASON_CONTAINS(status, "h5:1");
ASSERT_NOT_REASON_CONTAINS(status, "h6:1");
}
TEST_F(CheckQuorumForInitiate, QuorumCheckFailedDueToSetNameMismatch) {
// In this test, "we" are host "h3:1". All nodes respond
// successfully to their heartbeat requests, but quorum check fails because
// "h4" declares that the requested replica set name was not what it expected.
const ReplicaSetConfig rsConfig = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 1 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1:1") <<
BSON("_id" << 2 << "host" << "h2:1") <<
BSON("_id" << 3 << "host" << "h3:1") <<
BSON("_id" << 4 << "host" << "h4:1") <<
BSON("_id" << 5 << "host" << "h5:1"))));
const int myConfigIndex = 2;
const BSONObj hbRequest = makeHeartbeatRequest(rsConfig, myConfigIndex);
_net->addResponse(RemoteCommandRequest(HostAndPort("h1", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h2", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h4", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 0 << "mismatch" << true)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h5", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
Status status = checkQuorumForInitiate(_executor.get(), rsConfig, myConfigIndex);
ASSERT_EQUALS(ErrorCodes::NewReplicaSetConfigurationIncompatible, status);
ASSERT_REASON_CONTAINS(
status, "Our set name did not match");
ASSERT_NOT_REASON_CONTAINS(status, "h1:1");
ASSERT_NOT_REASON_CONTAINS(status, "h2:1");
ASSERT_NOT_REASON_CONTAINS(status, "h3:1");
ASSERT_REASON_CONTAINS(status, "h4:1");
ASSERT_NOT_REASON_CONTAINS(status, "h5:1");
}
TEST_F(CheckQuorumForInitiate, QuorumCheckFailedDueToInitializedNode) {
// In this test, "we" are host "h3:1". All nodes respond
// successfully to their heartbeat requests, but quorum check fails because
// "h5" declares that it is already initialized.
const ReplicaSetConfig rsConfig = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 1 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1:1") <<
BSON("_id" << 2 << "host" << "h2:1") <<
BSON("_id" << 3 << "host" << "h3:1") <<
BSON("_id" << 4 << "host" << "h4:1") <<
BSON("_id" << 5 << "host" << "h5:1"))));
const int myConfigIndex = 2;
const BSONObj hbRequest = makeHeartbeatRequest(rsConfig, myConfigIndex);
_net->addResponse(RemoteCommandRequest(HostAndPort("h1", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h2", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h4", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h5", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 0 << "set" << "rs0" << "v" << 1)));
Status status = checkQuorumForInitiate(_executor.get(), rsConfig, myConfigIndex);
ASSERT_EQUALS(ErrorCodes::NewReplicaSetConfigurationIncompatible, status);
ASSERT_REASON_CONTAINS(
status, "Our config version of");
ASSERT_REASON_CONTAINS(
status, "is no larger than the version");
ASSERT_NOT_REASON_CONTAINS(status, "h1:1");
ASSERT_NOT_REASON_CONTAINS(status, "h2:1");
ASSERT_NOT_REASON_CONTAINS(status, "h3:1");
ASSERT_NOT_REASON_CONTAINS(status, "h4:1");
ASSERT_REASON_CONTAINS(status, "h5:1");
}
TEST_F(CheckQuorumForInitiate, QuorumCheckFailedDueToInitializedNodeOnlyOneRespondent) {
// In this test, "we" are host "h3:1". Only node "h5" responds before the test completes,
// and quorum check fails because "h5" declares that it is already initialized.
//
// Compare to QuorumCheckFailedDueToInitializedNode, above.
const ReplicaSetConfig rsConfig = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 1 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1:1") <<
BSON("_id" << 2 << "host" << "h2:1") <<
BSON("_id" << 3 << "host" << "h3:1") <<
BSON("_id" << 4 << "host" << "h4:1") <<
BSON("_id" << 5 << "host" << "h5:1"))));
const int myConfigIndex = 2;
const BSONObj hbRequest = makeHeartbeatRequest(rsConfig, myConfigIndex);
// Responses from nodes h1, h2 and h4 and blocked until after the test
// completes.
_net->addResponse(RemoteCommandRequest(HostAndPort("h1", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)),
true);
_net->addResponse(RemoteCommandRequest(HostAndPort("h2", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)),
true);
_net->addResponse(RemoteCommandRequest(HostAndPort("h4", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)),
true);
// h5 responds, with a version incompatibility.
_net->addResponse(RemoteCommandRequest(HostAndPort("h5", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 0 << "set" << "rs0" << "v" << 1)));
Status status = checkQuorumForInitiate(_executor.get(), rsConfig, myConfigIndex);
ASSERT_EQUALS(ErrorCodes::NewReplicaSetConfigurationIncompatible, status);
ASSERT_REASON_CONTAINS(
status, "Our config version of");
ASSERT_REASON_CONTAINS(
status, "is no larger than the version");
ASSERT_NOT_REASON_CONTAINS(status, "h1:1");
ASSERT_NOT_REASON_CONTAINS(status, "h2:1");
ASSERT_NOT_REASON_CONTAINS(status, "h3:1");
ASSERT_NOT_REASON_CONTAINS(status, "h4:1");
ASSERT_REASON_CONTAINS(status, "h5:1");
}
TEST_F(CheckQuorumForReconfig, QuorumCheckVetoedDueToHigherConfigVersion) {
// In this test, "we" are host "h3:1". The request to "h2" times out,
// and the request to "h1" comes back indicating a higher config version.
const ReplicaSetConfig rsConfig = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 2 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1:1") <<
BSON("_id" << 2 << "host" << "h2:1") <<
BSON("_id" << 3 << "host" << "h3:1"))));
const int myConfigIndex = 2;
const BSONObj hbRequest = makeHeartbeatRequest(rsConfig, myConfigIndex);
_net->addResponse(RemoteCommandRequest(HostAndPort("h1", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 0 << "set" << "rs0" << "v" << 5)));
Status status = checkQuorumForReconfig(_executor.get(), rsConfig, myConfigIndex);
ASSERT_EQUALS(ErrorCodes::NewReplicaSetConfigurationIncompatible, status);
ASSERT_REASON_CONTAINS(
status, "Our config version of");
ASSERT_REASON_CONTAINS(
status, "is no larger than the version");
ASSERT_REASON_CONTAINS(status, "h1:1");
ASSERT_NOT_REASON_CONTAINS(status, "h2:1");
ASSERT_NOT_REASON_CONTAINS(status, "h3:1");
}
TEST_F(CheckQuorumForReconfig, QuorumCheckVetoedDueToIncompatibleSetName) {
// In this test, "we" are host "h3:1". The request to "h1" times out,
// and the request to "h2" comes back indicating an incompatible set name.
const ReplicaSetConfig rsConfig = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 2 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1:1") <<
BSON("_id" << 2 << "host" << "h2:1") <<
BSON("_id" << 3 << "host" << "h3:1"))));
const int myConfigIndex = 2;
const BSONObj hbRequest = makeHeartbeatRequest(rsConfig, myConfigIndex);
_net->addResponse(RemoteCommandRequest(HostAndPort("h2", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 0 << "mismatch" << true)));
Status status = checkQuorumForReconfig(_executor.get(), rsConfig, myConfigIndex);
ASSERT_EQUALS(ErrorCodes::NewReplicaSetConfigurationIncompatible, status);
ASSERT_REASON_CONTAINS(status, "Our set name did not match");
ASSERT_NOT_REASON_CONTAINS(status, "h1:1");
ASSERT_REASON_CONTAINS(status, "h2:1");
ASSERT_NOT_REASON_CONTAINS(status, "h3:1");
}
TEST_F(CheckQuorumForReconfig, QuorumCheckFailsDueToInsufficientVoters) {
// In this test, "we" are host "h4". Only "h1", "h2" and "h3" are voters,
// and of the voters, only "h1" responds. As a result, quorum check fails.
const ReplicaSetConfig rsConfig = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 2 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1:1") <<
BSON("_id" << 2 << "host" << "h2:1") <<
BSON("_id" << 3 << "host" << "h3:1") <<
BSON("_id" << 4 << "host" << "h4:1" << "votes" << 0) <<
BSON("_id" << 5 << "host" << "h5:1" << "votes" << 0))));
const int myConfigIndex = 3;
const BSONObj hbRequest = makeHeartbeatRequest(rsConfig, myConfigIndex);
_net->addResponse(RemoteCommandRequest(HostAndPort("h1", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h5", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
Status status = checkQuorumForReconfig(_executor.get(), rsConfig, myConfigIndex);
ASSERT_EQUALS(ErrorCodes::NodeNotFound, status);
ASSERT_REASON_CONTAINS(status, "not enough voting nodes responded; required 2 but only");
ASSERT_REASON_CONTAINS(status, "h1:1");
ASSERT_NOT_REASON_CONTAINS(status, "h2:1");
ASSERT_NOT_REASON_CONTAINS(status, "h3:1");
ASSERT_NOT_REASON_CONTAINS(status, "h4:1");
ASSERT_NOT_REASON_CONTAINS(status, "h5:1");
}
TEST_F(CheckQuorumForReconfig, QuorumCheckFailsDueToNoElectableNodeResponding) {
// In this test, "we" are host "h4". Only "h1", "h2" and "h3" are electable,
// and none of them respond.
const ReplicaSetConfig rsConfig = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 2 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1:1") <<
BSON("_id" << 2 << "host" << "h2:1") <<
BSON("_id" << 3 << "host" << "h3:1") <<
BSON("_id" << 4 << "host" << "h4:1" << "priority" << 0) <<
BSON("_id" << 5 << "host" << "h5:1" << "priority" << 0))));
const int myConfigIndex = 3;
const BSONObj hbRequest = makeHeartbeatRequest(rsConfig, myConfigIndex);
_net->addResponse(RemoteCommandRequest(HostAndPort("h5", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
Status status = checkQuorumForReconfig(_executor.get(), rsConfig, myConfigIndex);
ASSERT_EQUALS(ErrorCodes::NodeNotFound, status);
ASSERT_REASON_CONTAINS(status, "no electable nodes responded");
}
// TODO: Succeed with minimal quorum.
TEST_F(CheckQuorumForReconfig, QuorumCheckSucceedsWithAsSoonAsPossible) {
// In this test, "we" are host "h4". Only "h1", "h2" and "h3" can vote.
// This test should succeed as soon as h1 and h2 respond, so we block
// h3 and h5 from responding or timing out until the test completes.
const ReplicaSetConfig rsConfig = assertMakeRSConfig(
BSON("_id" << "rs0" <<
"version" << 2 <<
"members" << BSON_ARRAY(
BSON("_id" << 1 << "host" << "h1:1") <<
BSON("_id" << 2 << "host" << "h2:1") <<
BSON("_id" << 3 << "host" << "h3:1") <<
BSON("_id" << 4 << "host" << "h4:1" << "votes" << 0) <<
BSON("_id" << 5 << "host" << "h5:1" << "votes" << 0))));
const int myConfigIndex = 3;
const BSONObj hbRequest = makeHeartbeatRequest(rsConfig, myConfigIndex);
_net->addResponse(RemoteCommandRequest(HostAndPort("h1", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
_net->addResponse(RemoteCommandRequest(HostAndPort("h2", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 1)));
// If this message arrived, the reconfig would be vetoed, but it is delayed
// until the quorum check completes, and so has no effect.
_net->addResponse(RemoteCommandRequest(HostAndPort("h3", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 0 << "set" << "rs0" << "v" << 3)),
true);
// Ditto RE veto and no effect.
_net->addResponse(RemoteCommandRequest(HostAndPort("h5", 1),
"admin",
hbRequest),
StatusWith<BSONObj>(BSON("ok" << 0 << "set" << "rs0" << "v" << 3)),
true);
ASSERT_OK(checkQuorumForReconfig(_executor.get(), rsConfig, myConfigIndex));
}
} // namespace
} // namespace repl
} // namespace mongo
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