[
https://issues.apache.org/jira/browse/HADOOP-5330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12689819#action_12689819
]
Nathan Marz commented on HADOOP-5330:
-------------------------------------
The tasks aren't actually shown in the jobtracker UI. They're processes with
"attempt***" in the name running throughout the cluster. After a few weeks
there are about a hundred of them in our 40 node cluster. The only way to get
rid of them is to kill -9 them - a normal kill does not work.
> Zombie tasks remain after jobs finish/fail/get killed
> -----------------------------------------------------
>
> Key: HADOOP-5330
> URL: https://issues.apache.org/jira/browse/HADOOP-5330
> Project: Hadoop Core
> Issue Type: Bug
> Affects Versions: 0.19.1
> Reporter: Nathan Marz
>
> I'm seeing a lot of "task attempts" around our hadoop cluster for jobs that
> are no longer around. The attempts seem to be "hung", as they sit there
> forever. Additionally, they seem to take up map and reduce slots in the
> cluster unless MapReduce is restarted. This causes real jobs to be unable to
> utilize the whole cluster.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
