[jira] [Commented] (TEZ-3345) Diagnostics for a failed AM may not show up on the DAG UI page.

["Kuhu Shukla (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TEZ-3345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15924472#comment-15924472 ] 

Kuhu Shukla commented on TEZ-3345:
----------------------------------

bq. would it be fair to summarize that in certain situations, if the dag diagnostics are not present, we want to display the AM/app diagnostics if that is available somewhere

Yes.
 [~Sreenath], would appreciate any comments on this. Thanks a lot!

> Diagnostics for a failed AM may not show up on the DAG UI page.
> ---------------------------------------------------------------
>
>                 Key: TEZ-3345
>                 URL: https://issues.apache.org/jira/browse/TEZ-3345
>             Project: Apache Tez
>          Issue Type: Improvement
>          Components: UI
>            Reporter: Kuhu Shukla
>         Attachments: DagPage_AMDiagnostics.png
>
>
> In a scenario where AM fails on all its attempts, the DAG page does not show the Diagnostics message on the Tez UI "Diagnostics" section. The messageis available on the AHS and could be pulled into the DAG page just like we do for failed vertices.
> I ran a simple Tez example job that was given way too less memory causing the AM to fail:
> {code}
> hadoop jar /home/gs/tez/current/tez-examples-0.7.1.x.x.jar orderedwordcount -Dtez.am.resource.memory.mb=16 -Dtez.am.launch.cmd-opts="-Xmx13m -Djava.net.preferIPv4Stack=true -XX:+UseNUMA -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:<LOG_DIR>/gc.log"/books /output
> {code}



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