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Posted to mapreduce-issues@hadoop.apache.org by "Vrushali C (JIRA)" <ji...@apache.org> on 2017/08/02 21:02:00 UTC

[jira] [Commented] (MAPREDUCE-6929) TimelineClient hangs MR AM

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16111724#comment-16111724 ] 

Vrushali C commented on MAPREDUCE-6929:
---------------------------------------

Hmm, so the NMs did not have timeline collector as an auxiliary service but the AM was trying to connect to timeline service? It should retry for a few times (30 I think by default) and then just "complete". Do you have any logs? 

> TimelineClient hangs MR AM
> --------------------------
>
>                 Key: MAPREDUCE-6929
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6929
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mr-am
>            Reporter: Haibo Chen
>
> I happened to misconfigure ATSv2 settings, that is, I enabled emitting to ATSv2 in MR and did not start YARN with ATSv2. The job was stuck after it finished all its work. 
> Noticed that in MRAppMaster, TimelineClient is never added as a service, which I think is why the AM was hanging. 



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