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Posted to common-dev@hadoop.apache.org by "Sanjay Dahiya (JIRA)" <ji...@apache.org> on 2006/09/18 14:21:23 UTC
[jira] Deleted: (HADOOP-541) Reduces asking for map ouput for dead
tasktrackers causes NullPointerException on JobTracker
[ http://issues.apache.org/jira/browse/HADOOP-541?page=all ]
Sanjay Dahiya deleted HADOOP-541:
---------------------------------
> Reduces asking for map ouput for dead tasktrackers causes NullPointerException on JobTracker
> --------------------------------------------------------------------------------------------
>
> Key: HADOOP-541
> URL: http://issues.apache.org/jira/browse/HADOOP-541
> Project: Hadoop
> Issue Type: Bug
> Reporter: Sanjay Dahiya
>
> For dead task trackers, reduce tasks invoking locateMapOutputs(), results in NullPointerException.
> if (now - newProfile.getLastSeen() > TASKTRACKER_EXPIRY_INTERVAL) {
> // Remove completely
> updateTaskTrackerStatus(trackerName, null); <------ Task tracker removed.
> result.add(new MapOutputLocation(status.getTaskId(),
> mapTasksNeeded[i],
> tracker.getHost(), <------------NullPointerException
> tracker.getHttpPort()));
>
> 2006-09-15 15:15:52,634 INFO org.apache.hadoop.ipc.Server: Server handler 6 on 50020 call error: java.io.IOException: java.lang.NullPointerException
> java.io.IOException: java.lang.NullPointerException
> at org.apache.hadoop.mapred.JobTracker.locateMapOutputs(JobTracker.java:956)
> at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:333)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:473)
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