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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1374) TaskTracker falls into an infinite loop.
Date Wed, 23 May 2007 09:13:16 GMT

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

Arun C Murthy updated HADOOP-1374:
----------------------------------

    Fix Version/s:     (was: 0.13.0)
                   0.14.0

The 'ant test' seems to run fine on both linux and cygwin (sans contrib/hbase as noted by
HADOOP-1423) and I can't think of any way to reproduce this yet... hence I'm marking this
to fix for 0.14.0. 

Konstantin, I'm not sure how much of this has to do with the heterogenous environment you
have... I'd appreciate if you could attach logs when run into this again (JT/TT and tasklogs).
Thanks!



> 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
>             Fix For: 0.14.0
>
>
> 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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