/// <exception cref="System.IO.IOException"/>
private void Recover()
{
if (stateStore.CanRecover())
{
NMStateStoreService.RecoveredLogDeleterState state = stateStore.LoadLogDeleterState
();
long now = Runtime.CurrentTimeMillis();
foreach (KeyValuePair <ApplicationId, YarnServerNodemanagerRecoveryProtos.LogDeleterProto
> entry in state.GetLogDeleterMap())
{
ApplicationId appId = entry.Key;
YarnServerNodemanagerRecoveryProtos.LogDeleterProto proto = entry.Value;
long deleteDelayMsec = proto.GetDeletionTime() - now;
if (Log.IsDebugEnabled())
{
Log.Debug("Scheduling deletion of " + appId + " logs in " + deleteDelayMsec + " msec"
);
}
NonAggregatingLogHandler.LogDeleterRunnable logDeleter = new NonAggregatingLogHandler.LogDeleterRunnable
(this, proto.GetUser(), appId);
try
{
sched.Schedule(logDeleter, deleteDelayMsec, TimeUnit.Milliseconds);
}
catch (RejectedExecutionException)
{
// Handling this event in local thread before starting threads
// or after calling sched.shutdownNow().
logDeleter.Run();
}
}
}
}
public virtual void Handle(LogHandlerEvent @event)
{
switch (@event.GetType())
{
case LogHandlerEventType.ApplicationStarted:
{
LogHandlerAppStartedEvent appStartedEvent = (LogHandlerAppStartedEvent)@event;
this.appOwners[appStartedEvent.GetApplicationId()] = appStartedEvent.GetUser();
this.dispatcher.GetEventHandler().Handle(new ApplicationEvent(appStartedEvent.GetApplicationId
(), ApplicationEventType.ApplicationLogHandlingInited));
break;
}
case LogHandlerEventType.ContainerFinished:
{
// Ignore
break;
}
case LogHandlerEventType.ApplicationFinished:
{
LogHandlerAppFinishedEvent appFinishedEvent = (LogHandlerAppFinishedEvent)@event;
ApplicationId appId = appFinishedEvent.GetApplicationId();
// Schedule - so that logs are available on the UI till they're deleted.
Log.Info("Scheduling Log Deletion for application: " + appId + ", with delay of "
+ this.deleteDelaySeconds + " seconds");
string user = Sharpen.Collections.Remove(appOwners, appId);
if (user == null)
{
Log.Error("Unable to locate user for " + appId);
break;
}
NonAggregatingLogHandler.LogDeleterRunnable logDeleter = new NonAggregatingLogHandler.LogDeleterRunnable
(this, user, appId);
long deletionTimestamp = Runtime.CurrentTimeMillis() + this.deleteDelaySeconds *
1000;
YarnServerNodemanagerRecoveryProtos.LogDeleterProto deleterProto = ((YarnServerNodemanagerRecoveryProtos.LogDeleterProto
)YarnServerNodemanagerRecoveryProtos.LogDeleterProto.NewBuilder().SetUser(user).
SetDeletionTime(deletionTimestamp).Build());
try
{
stateStore.StoreLogDeleter(appId, deleterProto);
}
catch (IOException e)
{
Log.Error("Unable to record log deleter state", e);
}
try
{
sched.Schedule(logDeleter, this.deleteDelaySeconds, TimeUnit.Seconds);
}
catch (RejectedExecutionException)
{
// Handling this event in local thread before starting threads
// or after calling sched.shutdownNow().
logDeleter.Run();
}
break;
}
default:
{
break;
}
}
}