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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HIVE-14608) LLAP: slow scheduling due to LlapTaskScheduler not removing nodes on kill
Date Tue, 06 Sep 2016 18:05:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15468070#comment-15468070
] 

Sergey Shelukhin edited comment on HIVE-14608 at 9/6/16 6:05 PM:
-----------------------------------------------------------------

[~prasanth_j] [~gopalv] ping? It can introduce large slowdowns during node failures, esp.
for reducers


was (Author: sershe):
[~prasanth_j] [~gopalv] ping? 

> LLAP: slow scheduling due to LlapTaskScheduler not removing nodes on kill 
> --------------------------------------------------------------------------
>
>                 Key: HIVE-14608
>                 URL: https://issues.apache.org/jira/browse/HIVE-14608
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>            Priority: Critical
>         Attachments: HIVE-14608.patch
>
>
> See comments; this can result in a slowdown esp. if some critical task gets unlucky.
> {noformat}
>   public void workerNodeRemoved(ServiceInstance serviceInstance) {
>      // FIXME: disabling this for now
> // instanceToNodeMap.remove(serviceInstance.getWorkerIdentity());
> {noformat}



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