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Posted to common-dev@hadoop.apache.org by "Karam Singh (JIRA)" <ji...@apache.org> on 2008/09/26 11:49:44 UTC
[jira] Commented: (HADOOP-4288) java.lang.NullPointerException is
observed in Jobtracker log while call heartbeat
[ https://issues.apache.org/jira/browse/HADOOP-4288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12634801#action_12634801 ]
Karam Singh commented on HADOOP-4288:
-------------------------------------
Full Stack trace is -:
2008-09-26 09:28:53,254 INFO org.apache.hadoop.ipc.Server: IPC Server handler 2 on 34441, call heartbeat(org.apache.hadoop.mapred.TaskTrackerStatus@29d75, false, true, 99) from <ip:port>: error: java.io.IOException: java.lang.Nu
llPointerException
java.io.IOException: java.lang.NullPointerException
at org.apache.hadoop.mapred.CapacityTaskScheduler$TaskSchedulingMgr.updateQSIObjects(CapacityTaskScheduler.java:503)
at org.apache.hadoop.mapred.CapacityTaskScheduler$TaskSchedulingMgr.assignTasks(CapacityTaskScheduler.java:717)
at org.apache.hadoop.mapred.CapacityTaskScheduler$TaskSchedulingMgr.access$1100(CapacityTaskScheduler.java:243)
at org.apache.hadoop.mapred.CapacityTaskScheduler.assignTasks(CapacityTaskScheduler.java:1093)
at org.apache.hadoop.mapred.JobTracker.heartbeat(JobTracker.java:1853)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:452)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:888)
> java.lang.NullPointerException is observed in Jobtracker log while call heartbeat
> -----------------------------------------------------------------------------------
>
> Key: HADOOP-4288
> URL: https://issues.apache.org/jira/browse/HADOOP-4288
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/capacity-sched
> Affects Versions: 0.19.0
> Reporter: Karam Singh
>
> 2008-09-26 09:33:08,190 INFO org.apache.hadoop.ipc.Server: IPC Server handler 5 on 34441, call heartbeat(org.apache.hadoop.mapred.TaskTrackerStatus@177a878, false, true, 100) from <ipaddress:port>: error: java.io.IOException: java.lang.NullPointerException
> is observed in Jobtracker log.
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