[
https://issues.apache.org/jira/browse/HADOOP-3333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594379#action_12594379
]
Christian Kunz commented on HADOOP-3333:
----------------------------------------
This is a good enough work-around, i.e. it is okay with me to wait for 0.18.0
with the official fix
BTW, just for the record, the tasktracker's were not actually bouncing as in
restarting, but they got lost and rejoined.
> job failing because of reassigning same tasktracker to failing tasks
> --------------------------------------------------------------------
>
> Key: HADOOP-3333
> URL: https://issues.apache.org/jira/browse/HADOOP-3333
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.16.3
> Reporter: Christian Kunz
> Assignee: Arun C Murthy
> Priority: Critical
> Fix For: 0.18.0
>
> Attachments: HADOOP-3333_0_20080503.patch,
> HADOOP-3333_1_20080505.patch
>
>
> We have a long running a job in a 2nd atttempt. Previous job was failing and
> current jobs risks to fail as well, because reduce tasks failing on marginal
> TaskTrackers are assigned repeatedly to the same TaskTrackers (probably
> because it is the only available slot), eventually running out of attempts.
> Reduce tasks should be assigned to the same TaskTrackers at most twice, or
> TaskTrackers need to get some better smarts to find failing hardware.
> BTW, mapred.reduce.max.attempts=12, which is high, but does not help in this
> case.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
