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From "Suma Shivaprasad (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5219) When an export var command fails in launch_container.sh, the full container launch should fail
Date Tue, 01 Aug 2017 22:08:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-5219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16109875#comment-16109875
] 

Suma Shivaprasad commented on YARN-5219:
----------------------------------------

The updated patch LGTM. +1

> When an export var command fails in launch_container.sh, the full container launch should
fail
> ----------------------------------------------------------------------------------------------
>
>                 Key: YARN-5219
>                 URL: https://issues.apache.org/jira/browse/YARN-5219
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Hitesh Shah
>            Assignee: Sunil G
>         Attachments: YARN-5219.001.patch, YARN-5219.003.patch, YARN-5219.004.patch, YARN-5219.005.patch,
YARN-5219.006.patch, YARN-5219.007.patch, YARN-5219-branch-2.001.patch
>
>
> Today, a container fails if certain files fail to localize. However, if certain env vars
fail to get setup properly either due to bugs in the yarn application or misconfiguration,
the actual process launch still gets triggered. This results in either confusing error messages
if the process fails to launch or worse yet the process launches but then starts behaving
wrongly if the env var is used to control some behavioral aspects. 
> In this scenario, the issue was reproduced by trying to do export abc="$\{foo.bar}" which
is invalid as var names cannot contain "." in bash. 



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