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https://issues.apache.org/jira/browse/TEZ-1666?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siddharth Seth updated TEZ-1666:
--------------------------------
    Attachment: TEZ-1666.2.txt

Updated patch with the null check re-instated. Will mention the incompatibility 
in CHANGES.txt. Also, this makes 0.5.1 clients incompatible with a 0.5.2 AM.

> UserPayload should be null if the payload is not specified
> ----------------------------------------------------------
>
>                 Key: TEZ-1666
>                 URL: https://issues.apache.org/jira/browse/TEZ-1666
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Siddharth Seth
>            Assignee: Siddharth Seth
>            Priority: Critical
>         Attachments: TEZ-1666.1.txt, TEZ-1666.2.txt
>
>
> As an example in the ProcessorDescriptor - if no payload is specified, 
> context.getUserPayload should return null.
> SleepProcessor has an explicit check for a null payload, to enable default 
> sleep value - which fails.
> Marking as critical since this is an API behaviour inconsistency.



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