@Override
public void handleClusterView(boolean mergeView, int newViewId) {
synchronized (viewHandlingLock) {
// check to ensure this is not an older view
if (newViewId <= viewId) {
log.tracef("Ignoring old cluster view notification: %s", newViewId);
return;
}
boolean becameCoordinator = !isCoordinator && transport.isCoordinator();
isCoordinator = transport.isCoordinator();
if (trace) {
log.tracef(
"Received new cluster view: %d, isCoordinator = %s, becameCoordinator = %s",
(Object) newViewId, isCoordinator, becameCoordinator);
}
mustRecoverClusterStatus |= mergeView || becameCoordinator;
if (!isCoordinator) return;
if (mustRecoverClusterStatus) {
// Clean up leftover cache status information from the last time we were coordinator.
// E.g. if the local node was coordinator, started a rebalance, and then lost coordinator
// status because of a merge, the existing cache statuses may have a rebalance in progress.
cacheStatusMap.clear();
try {
recoverClusterStatus(newViewId, mergeView, transport.getMembers());
mustRecoverClusterStatus = false;
} catch (InterruptedException e) {
log.tracef("Cluster state recovery interrupted because the coordinator is shutting down");
// the CTMI has already stopped, no need to update the view id or notify waiters
return;
} catch (SuspectException e) {
// We will retry when we receive the new view and then we'll reset the
// mustRecoverClusterStatus flag
return;
} catch (Exception e) {
if (!isShuttingDown) {
log.failedToRecoverClusterState(e);
} else {
log.tracef("Cluster state recovery failed because the coordinator is shutting down");
}
}
}
// update the view id last, so join requests from other nodes wait until we recovered existing
// members' info
synchronized (viewUpdateLock) {
viewId = newViewId;
viewUpdateLock.notifyAll();
}
}
if (!mustRecoverClusterStatus) {
try {
updateCacheMembers(transport.getMembers());
} catch (Exception e) {
log.errorUpdatingMembersList(e);
}
}
}
@Override
public void handleClusterView(boolean mergeView, int newViewId) {
synchronized (viewHandlingLock) {
// check to ensure this is not an older view
if (newViewId <= viewId) {
log.tracef("Ignoring old cluster view notification: %s", newViewId);
return;
}
boolean becameCoordinator = !isCoordinator && transport.isCoordinator();
isCoordinator = transport.isCoordinator();
log.tracef(
"Received new cluster view: %s, isCoordinator = %s, becameCoordinator = %s",
newViewId, isCoordinator, becameCoordinator);
if (!isCoordinator) return;
if (mergeView || becameCoordinator) {
try {
recoverClusterStatus(newViewId, mergeView, transport.getMembers());
} catch (InterruptedException e) {
log.tracef("Cluster state recovery interrupted because the coordinator is shutting down");
// the CTMI has already stopped, no need to update the view id or notify waiters
return;
} catch (Exception e) {
// TODO Retry?
log.failedToRecoverClusterState(e);
}
} else {
try {
updateCacheMembers(transport.getMembers());
} catch (Exception e) {
log.errorUpdatingMembersList(e);
}
}
// update the view id last, so join requests from other nodes wait until we recovered existing
// members' info
synchronized (viewUpdateLock) {
viewId = newViewId;
viewUpdateLock.notifyAll();
}
}
}