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From "Naganarasimha G R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5423) Yarn applications are failing when job submitter use is re-created in OS.
Date Mon, 25 Jul 2016 06:41:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15391422#comment-15391422

Naganarasimha G R commented on YARN-5423:

[~vvasudev], In our scenario In OM side we were ensuring before deleteting the user any running
apps are deleted, but in a general case would suggest that we can return with a error code
when application initialization fails in NM for a given user and if its the reason for different
ID, then we can check whether any containers are running for this user and if not then we
can delete the folder recursively. Also if the user is deleted whether any further operations(like
log aggregation, in Mapred case writing intermediate folders/files etc) will get successfully
completed ? 
IMO atleast appropriate error message needs to be displayed (which is missing currently) and
if possible to handle it gradaully if not immediately, thoughts? 

> Yarn applications are failing when job submitter use is re-created in OS.
> -------------------------------------------------------------------------
>                 Key: YARN-5423
>                 URL: https://issues.apache.org/jira/browse/YARN-5423
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: applications
>    Affects Versions: 2.7.1
>            Reporter: Surendra Singh Lilhore
> When we re-create user in OS, user ID may change. If we run application from the same
user again, application will not able to write data in user NM local directory

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