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Posted to issues@tez.apache.org by "Jonathan Eagles (JIRA)" <ji...@apache.org> on 2018/03/02 17:22:00 UTC

[jira] [Updated] (TEZ-3897) Tez Local Mode hang for vertices with broadcast input

     [ https://issues.apache.org/jira/browse/TEZ-3897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Eagles updated TEZ-3897:
---------------------------------
    Attachment: TEZ-3897.002.patch

> Tez Local Mode hang for vertices with broadcast input
> -----------------------------------------------------
>
>                 Key: TEZ-3897
>                 URL: https://issues.apache.org/jira/browse/TEZ-3897
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Jonathan Eagles
>            Assignee: Jonathan Eagles
>            Priority: Major
>         Attachments: TEZ-3897.001.patch, TEZ-3897.002.patch
>
>
> Broadcast edges are not taken into consideration for slow-start edges so downstream tasks in local mode can start before upstream tasks. Without preemption in the scheduler, there will be a hang.



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