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From "Robert Kanter (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-5933) Enable MR AM to post history events to the timeline server
Date Fri, 24 Oct 2014 21:48:35 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5933?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Kanter updated MAPREDUCE-5933:
-------------------------------------
    Attachment: MAPREDUCE-5933.patch

The latest patch adds the missing {{.toString()}} call.  I also found out that {{tfe.getFailedAttemptID()}}
can sometimes be {{null}}, and {{.toString()}} would then throw a {{NullPointerException}}.
 I added some code to handle that here, and on similar get calls that could run into this.

> Enable MR AM to post history events to the timeline server
> ----------------------------------------------------------
>
>                 Key: MAPREDUCE-5933
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5933
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mr-am
>            Reporter: Zhijie Shen
>            Assignee: Robert Kanter
>         Attachments: MAPREDUCE-5933.patch, MAPREDUCE-5933.patch, MAPREDUCE-5933.patch,
MAPREDUCE-5933.patch, MAPREDUCE-5933.patch, MAPREDUCE-5933.patch, MAPREDUCE-5933.patch, MAPREDUCE-5933.patch,
MAPREDUCE-5933.patch, mr_timelineserver_response.txt
>
>
> Nowadays, MR AM collects the history events and writes it to HDFS for JHS to source.
With the timeline server, MR AM can put these events there.



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