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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6177) Yarn client should exit with an informative error message if an incompatible Jersey library is used at client
Date Wed, 15 Feb 2017 22:14:41 GMT

    [ https://issues.apache.org/jira/browse/YARN-6177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15868669#comment-15868669
] 

Weiwei Yang commented on YARN-6177:
-----------------------------------

Hi [~gtCarrera9]

Yes I understand your concern, but i think the patch is providing a reasonable work around
if clients ship a jersey2 lib, such as spark2 (more in SPARK-15343), they will 100% hit this.
 Such services don't really use timeline service but if without this fix, yarn client exits
with no information prompted and user needs to study the code, and manually disable timeline
client. The error message provided in this patch helps to make this process easier. The patch
is not "swallowing" any error (new UT guarantees that), it is just aim to provide useful information
plus a work around and user is the decision maker. Does that make sense?

> Yarn client should exit with an informative error message if an incompatible Jersey library
is used at client
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-6177
>                 URL: https://issues.apache.org/jira/browse/YARN-6177
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.8.0, 3.0.0-alpha2
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>         Attachments: spark2-job-output-after-besteffort.out, spark2-job-output-after.out,
spark2-job-output-before.out, YARN-6177.01.patch, YARN-6177.02.patch, YARN-6177.03.patch,
YARN-6177.04.patch, YARN-6177.05.patch
>
>
> Per discussion in YARN-5271, lets provide an error message to suggest user to disable
timeline service instead of disabling for them.



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