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https://issues.apache.org/jira/browse/TEZ-2426?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14534404#comment-14534404
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Jeff Zhang commented on TEZ-2426:
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lgtm +1
> Task input not complete before sending Task completed event
> -----------------------------------------------------------
>
> Key: TEZ-2426
> URL: https://issues.apache.org/jira/browse/TEZ-2426
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.7.0
> Reporter: Bikas Saha
> Assignee: Siddharth Seth
> Priority: Critical
> Attachments: TEZ-2426.1.txt, TEZ-2426.2.txt, am.log, container.log
>
>
> Sequence of events
> 1) Task A starts in a container
> 2) Task A complete event comes to AM
> 3) Task B starts in the same container
> 4) Task A's input calls some method on its context. Crashes with NPE
> 5) The crash sends an input failed event for Task A to the AM
> 6) Task A state machine crashes saying cannot handle failed after success
> In some cases, it could be that status update event is also sent after
> completion, though not sure if its related to the failed event being sent.
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