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From "Vinod K V (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4290) In jobdetails.jsp page the values of Pending and Complete tasks for map keeps on interchanging with each other.
Date Tue, 30 Sep 2008 06:05:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12635673#action_12635673
] 

Vinod K V commented on HADOOP-4290:
-----------------------------------

Changing the issue dependencies, I've found out the actual reason to be HADOOP-4288. Because
of HADOOP-4288, a tasktracker that gets a NullPointerException in its heartbeat resends the
heartbeat repetitively for ever. And, on each heartbeat, JT finds a completed task reported
by the TT to be already marked as completed in its data-structures, so marks it as killed
and thus the state toggle happens repetitively. (JobInProgress.java +619).

It wasn't mentioned earlier, but, note that this issue surfaces only after applying HADOOP-4053,
which in turn triggers HADOOP-4288.

> In jobdetails.jsp page the values of Pending and Complete tasks for map keeps on interchanging
with each other.
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-4290
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4290
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/capacity-sched
>    Affects Versions: 0.19.0
>            Reporter: Karam Singh
>
> In jobdetails.jsp page the values of Pending and Complete tasks for map keeps on interchanging
with each other.

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