void ReplicationCoordinatorImpl::_onVoteRequestComplete(long long originalTerm) {
invariant(_voteRequester);
invariant(!_electionWinnerDeclarer);
LoseElectionGuardV1 lossGuard(this);
if (_topCoord->getTerm() != originalTerm) {
log() << "not becoming primary, we have been superceded already";
return;
}
const VoteRequester::VoteRequestResult endResult = _voteRequester->getResult();
if (endResult == VoteRequester::InsufficientVotes) {
log() << "not becoming primary, we received insufficient votes";
return;
} else if (endResult == VoteRequester::StaleTerm) {
log() << "not becoming primary, we have been superceded already";
return;
} else if (endResult != VoteRequester::SuccessfullyElected) {
log() << "not becoming primary, we received an unexpected problem";
return;
}
log() << "election succeeded, assuming primary role in term " << _topCoord->getTerm();
// Prevent last committed optime from updating until we finish draining.
_setFirstOpTimeOfMyTerm(
OpTime(Timestamp(std::numeric_limits<int>::max(), 0), std::numeric_limits<int>::max()));
_performPostMemberStateUpdateAction(kActionWinElection);
_voteRequester.reset(nullptr);
_replExecutor.signalEvent(_electionFinishedEvent);
lossGuard.dismiss();
}
void ReplicationCoordinatorImpl::_onVoteRequestComplete(long long originalTerm) {
invariant(_voteRequester);
LoseElectionGuardV1 lossGuard(this);
LockGuard lk(_topoMutex);
if (_topCoord->getTerm() != originalTerm) {
log() << "not becoming primary, we have been superceded already";
return;
}
const VoteRequester::Result endResult = _voteRequester->getResult();
switch (endResult) {
case VoteRequester::Result::kInsufficientVotes:
log() << "not becoming primary, we received insufficient votes";
return;
case VoteRequester::Result::kStaleTerm:
log() << "not becoming primary, we have been superceded already";
return;
case VoteRequester::Result::kSuccessfullyElected:
log() << "election succeeded, assuming primary role in term " << _topCoord->getTerm();
break;
}
{
// Mark all nodes that responded to our vote request as up to avoid immediately
// relinquishing primary.
stdx::lock_guard<stdx::mutex> lk(_mutex);
Date_t now = _replExecutor.now();
const unordered_set<HostAndPort> liveNodes = _voteRequester->getResponders();
for (auto& nodeInfo : _slaveInfo) {
if (liveNodes.count(nodeInfo.hostAndPort)) {
nodeInfo.down = false;
nodeInfo.lastUpdate = now;
}
}
}
// Prevent last committed optime from updating until we finish draining.
_setFirstOpTimeOfMyTerm(
OpTime(Timestamp(std::numeric_limits<int>::max(), 0), std::numeric_limits<int>::max()));
_performPostMemberStateUpdateAction(kActionWinElection);
_voteRequester.reset(nullptr);
_replExecutor.signalEvent(_electionFinishedEvent);
lossGuard.dismiss();
}