You are viewing a plain text version of this content. The canonical link for it is here.
Posted to mapreduce-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2014/07/21 22:30:40 UTC
[jira] [Resolved] (MAPREDUCE-161) Tasks are not scheduled even
though task trackers have extra slots
[ https://issues.apache.org/jira/browse/MAPREDUCE-161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Allen Wittenauer resolved MAPREDUCE-161.
----------------------------------------
Resolution: Incomplete
Closing this as stale.
> Tasks are not scheduled even though task trackers have extra slots
> ------------------------------------------------------------------
>
> Key: MAPREDUCE-161
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-161
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Runping Qi
>
> I ran a job with 51 reduce tasks on a cluster with 13 task trackers running Hadoop 0.19. Each task tracker has 5 reduce slots.
> Initially, each task tracker accepted 4 reduce tasks as expected. However, 3 task trackers were put into blacklist because many tasks failed on them.
> However, those failed tasks stayed in pending state, not being scheduled to other task trackers, even though each of the other healthy tracker has one free slot.
--
This message was sent by Atlassian JIRA
(v6.2#6252)