bool BackgroundSync::shouldStopFetching() const {
if (inShutdown()) {
LOG(2) << "Stopping oplog fetcher due to shutdown.";
return true;
}
// If we are transitioning to primary state, we need to stop fetching in order to go into
// bgsync-stop mode.
if (_replCoord->isWaitingForApplierToDrain()) {
LOG(2) << "Stopping oplog fetcher because we are waiting for the applier to drain.";
return true;
}
if (_replCoord->getMemberState().primary() && !_replCoord->isCatchingUp()) {
LOG(2) << "Stopping oplog fetcher because we are primary.";
return true;
}
// Check if we have been stopped.
if (isStopped()) {
LOG(2) << "Stopping oplog fetcher due to stop request.";
return true;
}
// Check current sync source.
if (getSyncTarget().empty()) {
LOG(1) << "Stopping oplog fetcher; canceling oplog query because we have no valid sync "
"source.";
return true;
}
return false;
}
bool BackgroundSync::shouldStopFetching() const {
if (inShutdown()) {
LOG(2) << "Interrupted by shutdown while checking sync source.";
return true;
}
// If we are transitioning to primary state, we need to stop fetching in order to go into
// bgsync-stop mode.
if (_replCoord->isWaitingForApplierToDrain()) {
LOG(2) << "Interrupted by waiting for applier to drain while checking sync source.";
return true;
}
if (_replCoord->getMemberState().primary() && !_replCoord->isCatchingUp()) {
LOG(2) << "Interrupted by becoming primary while checking sync source.";
return true;
}
// Check if we have been stopped.
if (isStopped()) {
LOG(2) << "Interrupted by a stop request while checking sync source.";
return true;
}
// Check current sync target.
if (getSyncTarget().empty()) {
LOG(1) << "Canceling oplog query because we have no valid sync source.";
return true;
}
return false;
}
bool BackgroundSync::_shouldChangeSyncSource(const HostAndPort& syncSource) {
// is it even still around?
if (getSyncTarget().empty() || syncSource.empty()) {
return true;
}
// check other members: is any member's optime more than MaxSyncSourceLag seconds
// ahead of the current sync source?
return _replCoord->shouldChangeSyncSource(syncSource);
}
bool BackgroundSync::shouldStopFetching() const {
// Check if we have been stopped.
if (getState() != ProducerState::Running) {
LOG(2) << "Stopping oplog fetcher due to stop request.";
return true;
}
// Check current sync source.
if (getSyncTarget().empty()) {
LOG(1) << "Stopping oplog fetcher; canceling oplog query because we have no valid sync "
"source.";
return true;
}
return false;
}