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From "Panagiotis Garefalakis (Jira)" <j...@apache.org>
Subject [jira] [Comment Edited] (HIVE-22966) LLAP: Consider including waitTime for comparing attempts in same vertex
Date Thu, 05 Mar 2020 14:51:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-22966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17052191#comment-17052191
] 

Panagiotis Garefalakis edited comment on HIVE-22966 at 3/5/20, 2:50 PM:
------------------------------------------------------------------------

As long as the stage is making progress and tasks get resources its not starvation – anyhow,
I believe the important thing here is that even thought this patch takes into account task
*aging* we do not cure the long-tail task issue and we need to properly take care of it.


was (Author: pgaref):
As long as the stage is making progress and tasks get resources its not starvation – anyhow,
I believe the important thing here is that we do not cure the long-tail task issue and we
need to properly take care of it.

> LLAP: Consider including waitTime for comparing attempts in same vertex
> -----------------------------------------------------------------------
>
>                 Key: HIVE-22966
>                 URL: https://issues.apache.org/jira/browse/HIVE-22966
>             Project: Hive
>          Issue Type: Improvement
>          Components: llap
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Minor
>             Fix For: 4.0.0
>
>         Attachments: HIVE-22966.3.patch, HIVE-22966.4.patch
>
>
> When attempts are compared within same vertex, it should pick up the attempt with longest
wait time to avoid starvation.



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