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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14060) Hive: Remove bogus "localhost" from Hive splits
Date Tue, 21 Jun 2016 17:27:58 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15342245#comment-15342245
] 

Sergey Shelukhin commented on HIVE-14060:
-----------------------------------------

+1

> Hive: Remove bogus "localhost" from Hive splits
> -----------------------------------------------
>
>                 Key: HIVE-14060
>                 URL: https://issues.apache.org/jira/browse/HIVE-14060
>             Project: Hive
>          Issue Type: Bug
>          Components: Tez
>    Affects Versions: 2.1.0, 2.2.0
>            Reporter: Gopal V
>            Assignee: Gopal V
>         Attachments: HIVE-14060.1.patch
>
>
> On remote filesystems like Azure, GCP and S3, the splits contain a filler location of
"localhost".
> This is worse than having no location information at all - on large clusters yarn waits
upto 200[1] seconds for heartbeat from "localhost" before allocating a container.
> To speed up this process, the split affinity provider should scrub the bogus "localhost"
from the locations and allow for the allocation of "*" containers instead on each heartbeat.
> [1] - yarn.scheduler.capacity.node-locality-delay=40 x heartbeat of 5s



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