void ReplicationCoordinatorImpl::_handleHeartbeatResponse(
const ReplicationExecutor::RemoteCommandCallbackData& cbData) {
// remove handle from queued heartbeats
_untrackHeartbeatHandle(cbData.myHandle);
// Parse and validate the response. At the end of this step, if responseStatus is OK then
// hbResponse is valid.
Status responseStatus = cbData.response.getStatus();
if (responseStatus == ErrorCodes::CallbackCanceled) {
return;
}
const HostAndPort& target = cbData.request.target;
ReplSetHeartbeatResponse hbResponse;
BSONObj resp;
if (responseStatus.isOK()) {
resp = cbData.response.getValue().data;
responseStatus = getStatusFromCommandResult(resp);
}
if (responseStatus.isOK()) {
responseStatus = hbResponse.initialize(resp);
}
if (!responseStatus.isOK()) {
LOG(1) << "Error in heartbeat request to " << target << ";" << responseStatus;
if (!resp.isEmpty()) {
LOG(3) << "heartbeat response: " << resp;
}
}
const Date_t now = _replExecutor.now();
const OpTime lastApplied = _getLastOpApplied(); // Locks and unlocks _mutex.
Milliseconds networkTime(0);
StatusWith<ReplSetHeartbeatResponse> hbStatusResponse(hbResponse);
if (cbData.response.isOK()) {
networkTime = cbData.response.getValue().elapsedMillis;
}
else {
hbStatusResponse = StatusWith<ReplSetHeartbeatResponse>(responseStatus);
}
HeartbeatResponseAction action =
_topCoord->processHeartbeatResponse(
now,
networkTime,
target,
hbStatusResponse,
lastApplied);
_scheduleHeartbeatToTarget(
target,
std::max(now, action.getNextHeartbeatStartDate()));
_handleHeartbeatResponseAction(action, hbStatusResponse);
}
Status ReplicationCoordinatorImpl::processReplSetGetStatus(BSONObjBuilder* response) {
Status result(ErrorCodes::InternalError, "didn't set status in prepareStatusResponse");
CBHStatus cbh = _replExecutor->scheduleWork(
stdx::bind(&TopologyCoordinator::prepareStatusResponse,
_topCoord.get(),
stdx::placeholders::_1,
Date_t(curTimeMillis64()),
time(0) - serverGlobalParams.started,
_getLastOpApplied(),
response,
&result));
if (cbh.getStatus() == ErrorCodes::ShutdownInProgress) {
return Status(ErrorCodes::ShutdownInProgress, "replication shutdown in progress");
}
fassert(18640, cbh.getStatus());
_replExecutor->wait(cbh.getValue());
return result;
}
Status ReplicationCoordinatorImpl::processHeartbeat(const ReplSetHeartbeatArgs& args,
ReplSetHeartbeatResponse* response) {
Status result(ErrorCodes::InternalError, "didn't set status in prepareHeartbeatResponse");
CBHStatus cbh = _replExecutor->scheduleWork(
stdx::bind(&TopologyCoordinator::prepareHeartbeatResponse,
_topCoord.get(),
stdx::placeholders::_1,
Date_t(curTimeMillis64()),
args,
_settings.ourSetName(),
_getLastOpApplied(),
response,
&result));
if (cbh.getStatus() == ErrorCodes::ShutdownInProgress) {
return Status(ErrorCodes::ShutdownInProgress, "replication shutdown in progress");
}
fassert(18508, cbh.getStatus());
_replExecutor->wait(cbh.getValue());
return result;
}
