[
https://issues.apache.org/jira/browse/HADOOP-5908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12713563#action_12713563
]
Ramya R commented on HADOOP-5908:
---------------------------------
With the above patch, observed NPE in heartbeats with zero map jobs.
Below is the stacktrace
{noformat}
java.lang.NullPointerException
java.io.IOException: java.lang.NullPointerException
at
org.apache.hadoop.mapred.JobInProgress.findNewMapTask(JobInProgress.java:1777)
at
org.apache.hadoop.mapred.JobInProgress.obtainNewMapTask(JobInProgress.java:982)
at
org.apache.hadoop.mapred.CapacityTaskScheduler$MapSchedulingMgr.obtainNewTask(CapacityTaskScheduler.java:572)
at
org.apache.hadoop.mapred.CapacityTaskScheduler$TaskSchedulingMgr.getTaskFromQueue(CapacityTaskScheduler.java:418)
at
org.apache.hadoop.mapred.CapacityTaskScheduler$TaskSchedulingMgr.assignTasks(CapacityTaskScheduler.java:498)
at
org.apache.hadoop.mapred.CapacityTaskScheduler$TaskSchedulingMgr.access$500(CapacityTaskScheduler.java:277)
at
org.apache.hadoop.mapred.CapacityTaskScheduler.assignTasks(CapacityTaskScheduler.java:977)
at org.apache.hadoop.mapred.JobTracker.heartbeat(JobTracker.java:2605)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:508)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:959)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:955)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:953)
{noformat}
> ArithmeticException in heartbeats with zero map jobs
> ----------------------------------------------------
>
> Key: HADOOP-5908
> URL: https://issues.apache.org/jira/browse/HADOOP-5908
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Reporter: Vinod K V
> Assignee: Amar Kamat
> Attachments: HADOOP-5908-v3.0.patch
>
>
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
