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Posted to issues@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2016/12/21 07:57:58 UTC

[jira] [Commented] (HIVE-15482) LLAP: When pre-emption is disabled task scheduler gets into loop

    [ https://issues.apache.org/jira/browse/HIVE-15482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15766399#comment-15766399 ] 

Gopal V commented on HIVE-15482:
--------------------------------

LGTM  - +1 tests pending.

Minor readability nit,  {{enablePreemption == false}} instead of the ! implied precedence over the ||?

> LLAP: When pre-emption is disabled task scheduler gets into loop
> ----------------------------------------------------------------
>
>                 Key: HIVE-15482
>                 URL: https://issues.apache.org/jira/browse/HIVE-15482
>             Project: Hive
>          Issue Type: Bug
>          Components: llap
>    Affects Versions: 2.2.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>            Priority: Critical
>         Attachments: HIVE-15482.1.patch
>
>
> When pre-emption is disabled and when number of slots is 0, the scheduler can get into a loop trying to schedule the tasks without actually waiting for free slots.



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