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Posted to issues@hive.apache.org by "Sergey Shelukhin (JIRA)" <ji...@apache.org> on 2017/09/07 22:10:00 UTC
[jira] [Updated] (HIVE-17256) add a notion of a guaranteed task to
LLAP
[ https://issues.apache.org/jira/browse/HIVE-17256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sergey Shelukhin updated HIVE-17256:
------------------------------------
Issue Type: Sub-task (was: Bug)
Parent: HIVE-17481
> add a notion of a guaranteed task to LLAP
> -----------------------------------------
>
> Key: HIVE-17256
> URL: https://issues.apache.org/jira/browse/HIVE-17256
> Project: Hive
> Issue Type: Sub-task
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Labels: TODOC3.0
> Fix For: 3.0.0
>
> Attachments: HIVE-17256.01.patch, HIVE-17256.patch
>
>
> Tasks are basically on two levels, guaranteed and speculative, with speculative being the default. As long as noone uses the new flag, the tasks behave the same.
> All the tasks that do have the flag also behave the same with regard to each other.
> The difference is that a guaranteed task is always higher priority, and preempts, a speculative task.
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