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From "Vlad Rozov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (APEXCORE-642) Catch all exceptions in StreamingAppMasterService.serviceInit() and create a StramEvent
Date Wed, 08 Feb 2017 17:06:41 GMT

    [ https://issues.apache.org/jira/browse/APEXCORE-642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15858243#comment-15858243
] 

Vlad Rozov commented on APEXCORE-642:
-------------------------------------

[~sanjaypujare] Is not the exception already logged in StreamingAppMaster.main()?

> Catch all exceptions in StreamingAppMasterService.serviceInit() and create a StramEvent
> ---------------------------------------------------------------------------------------
>
>                 Key: APEXCORE-642
>                 URL: https://issues.apache.org/jira/browse/APEXCORE-642
>             Project: Apache Apex Core
>          Issue Type: Bug
>            Reporter: Sanjay M Pujare
>            Assignee: Sanjay M Pujare
>            Priority: Minor
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> When the AM (Stram) starts, it executes StreamingAppMasterService.serviceInit() to perform
service initialization as per the Hadoop service contract. In this, the Stram deserializes
the DAG which can fail (e.g. bad jar versions or other deserialization issues) and any exception
is thrown is not logged in Apex log files or events. It is proposed to catch these exceptions
and log them to the dt log file as well as Stram events so the Apex user knows about these
exceptions.



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