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Posted to common-dev@hadoop.apache.org by "Hemanth Yamijala (JIRA)" <ji...@apache.org> on 2008/03/17 05:31:24 UTC
[jira] Assigned: (HADOOP-2947) [HOD] Hod should redirect stderr and
stdout of Hadoop daemons to assist debugging
[ https://issues.apache.org/jira/browse/HADOOP-2947?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hemanth Yamijala reassigned HADOOP-2947:
----------------------------------------
Assignee: Vinod Kumar Vavilapalli
> [HOD] Hod should redirect stderr and stdout of Hadoop daemons to assist debugging
> ---------------------------------------------------------------------------------
>
> Key: HADOOP-2947
> URL: https://issues.apache.org/jira/browse/HADOOP-2947
> Project: Hadoop Core
> Issue Type: Improvement
> Components: contrib/hod
> Affects Versions: 0.16.0
> Reporter: Hemanth Yamijala
> Assignee: Vinod Kumar Vavilapalli
> Fix For: 0.17.0
>
>
> Copied from internal bug details from Koji:
> ==========================
> Sometimes JobTracker/TaskTracker starts consuming 99% cpu and stops responding to 'jstack' call. In those cases,
> usually it still responds to kill -QUIT signal which forces the jvm to dump the stack to stdout.
> Please have the stdout of JT/TT redirected to a file.
> Adding stderr.
> If thread has an uncaught exception, it prints out to stderr and dies.
> ==========================
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