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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1374) TaskTracker falls into an infinite loop.
Date Fri, 25 May 2007 02:17:16 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantin Shvachko updated HADOOP-1374:
----------------------------------------

    Fix Version/s:     (was: 0.14.0)
                   0.13.0
         Priority: Blocker  (was: Major)

I've attached all logs.
This a single node cluster. I am running TestDFSIO, not the unit tests.
I do not know how Owen derived this is related to ArrayIndexOutOfBoundsException.
I don't see any exceptions at all.

I do not think we can release our _distributed_ software if it does not run on a _single_
node.

> TaskTracker falls into an infinite loop.
> ----------------------------------------
>
>                 Key: HADOOP-1374
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1374
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.12.3
>            Reporter: Konstantin Shvachko
>         Assigned To: Arun C Murthy
>            Priority: Blocker
>             Fix For: 0.13.0
>
>         Attachments: DataNode1.log, DataNode2.log, JobTracker.log, NameNode.log, TaskTracker1.log,
TaskTracker2.log, TestDFSIO.log
>
>
> All maps had been completed successfully. I had only one reduce task during which
> TaskTracker infinitely outputs:
> 07/05/15 19:35:41 INFO mapred.TaskTracker: task_0001_r_000000_0 0.16666667% reduce >
copy (4 of 8 at 0.00 MB/s) > 
> 07/05/15 19:35:42 INFO mapred.TaskTracker: task_0001_r_000000_0 0.16666667% reduce >
copy (4 of 8 at 0.00 MB/s) > 
> 07/05/15 19:35:43 INFO mapred.TaskTracker: task_0001_r_000000_0 0.16666667% reduce >
copy (4 of 8 at 0.00 MB/s) > 
> 07/05/15 19:35:44 INFO mapred.TaskTracker: task_0001_r_000000_0 0.16666667% reduce >
copy (4 of 8 at 0.00 MB/s) > 
> 07/05/15 19:35:45 INFO mapred.TaskTracker: task_0001_r_000000_0 0.16666667% reduce >
copy (4 of 8 at 0.00 MB/s) > 
> JobTracker does not log anything about task task_0001_r_000000_0 except for
> 07/05/15 19:49:01 INFO mapred.JobTracker: Adding task 'task_0001_r_000000_0' to tip tip_0001_r_000000,
for tracker 'tracker_my-host.com:50050'

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