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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1374) TaskTracker falls into an infinite loop.
Date Fri, 25 May 2007 20:11:16 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12499213
] 

Konstantin Shvachko commented on HADOOP-1374:
---------------------------------------------

The TaskTracker was lost because I killed it since it was spewing status report every second.
So the problem happend before that. And it looks like it is not reflected in the log.
This is not windows related, I am running all these things on a linux machine.
I'll try to debug it later today since nobody else can reproduce it.

> 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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