[jira] Updated: (MAPREDUCE-1143) runningMapTasks counter is not properly decremented in case of failed Tasks.

["Arun C Murthy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1143?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy updated MAPREDUCE-1143:
-------------------------------------

    Status: Open  (was: Patch Available)

Had an offline discussion with Owen and Devaraj about this mess...

Owen suggested a better, albeit more involved, fix:

Update the counters in TIP.updateStatus since it's the single entry point for updating TaskStatus for a task-attempt and since JIP is already locked we reach into into and update runningMapTasks, runningReduceTasks, failedMapTasks, failedReduceTasks, speculativeMapTasks and speculativeReduceTasks.

Thoughts?

> runningMapTasks counter is not properly decremented in case of failed Tasks.
> ----------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1143
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1143
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: rahul k singh
>            Priority: Blocker
>         Attachments: MAPRED-1143-1.patch, MAPRED-1143-2.patch, MAPRED-1143-2.patch, MAPRED-1143-3.patch, MAPRED-1143-4.patch, MAPRED-1143-ydist-1.patch, MAPRED-1143-ydist-2.patch, MAPRED-1143-ydist-3.patch, MAPRED-1143-ydist-4.patch, MAPRED-1143-ydist-5.patch, MAPRED-1143-ydist-6.patch
>
>


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