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From "Suma Shivaprasad (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8675) Setting hostname of docker container breaks with "host" networking mode for Apps which do not run as a YARN service
Date Mon, 27 Aug 2018 15:58:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16593869#comment-16593869
] 

Suma Shivaprasad commented on YARN-8675:
----------------------------------------

Fixed checkstyle issues

> Setting hostname of docker container breaks with "host" networking mode for Apps which
do not run as a YARN service
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-8675
>                 URL: https://issues.apache.org/jira/browse/YARN-8675
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Yesha Vora
>            Assignee: Suma Shivaprasad
>            Priority: Major
>              Labels: Docker
>         Attachments: YARN-8675.1.patch, YARN-8675.2.patch, YARN-8675.3.patch, YARN-8675.4.patch
>
>
> Applications like the Spark AM currently do not run as a YARN service and setting hostname
breaks driver/executor communication if docker version >=1.13.1 , especially with wire-encryption
turned on.
> YARN-8027 sets the hostname if YARN DNS is enabled. But the cluster could have a mix
of YARN service/native Applications.
> The proposal is to not set the hostname when "host" networking mode is enabled.



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