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https://issues.apache.org/jira/browse/TEZ-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bikas Saha updated TEZ-2193:
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Comment: was deleted
(was: Attaching patch with more more changes.)
> Check returned value from EdgeManagerPlugin before using it
> -----------------------------------------------------------
>
> Key: TEZ-2193
> URL: https://issues.apache.org/jira/browse/TEZ-2193
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Jeff Zhang
> Assignee: Jeff Zhang
> Attachments: TEZ-2193-1.patch, TEZ-2193-2.patch
>
>
> e.g. dag has vertices v1, v2 and shuffle edge between them, and v2 has custom
> vertex manager and -1 parallelism. In this case v1's output spec may be has
> -1 physical edge which will cause task hangs in TezChild.
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