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https://issues.apache.org/jira/browse/HADOOP-4288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12636997#action_12636997
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Hemanth Yamijala commented on HADOOP-4288:
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- The code adds a debug LOG statement that could print a null value of the
variable {{i}} in {{CapacityTaskScheduler.jobAdded}}. This will not cause any
problem, but will not give the right information (that there is 1 job for the
user).
- The test case does not seem to test that when job is removed, the associated
structures are correctly cleaned up. Isn't that what should be tested? Also, I
think the test case can be named something more relevant like
{{testJobRemoval}} or something like that.
> 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
> Assignee: Amar Kamat
> Priority: Blocker
> Attachments: HADOOP-4288-v1.patch, HADOOP-4288-v2.patch,
> HADOOP-4288-v3.patch
>
> Original Estimate: 0h
> Remaining Estimate: 0h
>
> 2008-09-26 09:33:08,190 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 5 on 34441, call heartbeat([EMAIL PROTECTED], false, true, 100) from
> <ipaddress:port>: error: java.io.IOException: java.lang.NullPointerException
> is observed in Jobtracker log.
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