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Posted to issues@hive.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/06/02 22:45:00 UTC

[jira] [Updated] (HIVE-23596) Encode guaranteed task information in containerId

     [ https://issues.apache.org/jira/browse/HIVE-23596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated HIVE-23596:
----------------------------------
    Labels: pull-request-available  (was: )

> Encode guaranteed task information in containerId
> -------------------------------------------------
>
>                 Key: HIVE-23596
>                 URL: https://issues.apache.org/jira/browse/HIVE-23596
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Mustafa Iman
>            Assignee: Mustafa Iman
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> We should avoid calling LlapTaskScheduler to get initial isguaranteed flag for all the tasks. It causes arbitrary delays in sending tasks out. Since communicator is a single thread, any blocking there delays all the tasks.
> There are [https://jira.apache.org/jira/browse/TEZ-4192] and [https://jira.apache.org/jira/browse/HIVE-23589] for a proper solution to this. However, that requires a Tez release which seems far right now. We can replace the current hack with another hack that does not require locking.



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