[jira] [Assigned] (YARN-11897) NodeManager REST API backward compatibility with Jersey1

["Peter Szucs (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-11897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Peter Szucs reassigned YARN-11897:
----------------------------------

    Assignee: chhinlinghean  (was: Peter Szucs)

> NodeManager REST API backward compatibility with Jersey1
> --------------------------------------------------------
>
>                 Key: YARN-11897
>                 URL: https://issues.apache.org/jira/browse/YARN-11897
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: yarn
>    Affects Versions: 3.5.0
>            Reporter: Peter Szucs
>            Assignee: chhinlinghean
>            Priority: Major
>
> Jersey 2 upgrade broke NM REST API, so nodes applications page is not rendering in yarn UI v2 and also logs CLI cannot retrieve container logs.
> To fix this we need to:
>  * introduce moxy in NM similar to YARN-11874
>  * "/containers/\{containerid}/logs" endpoint returns a list, which will always be generated as a JSON array with Jersey 2. In Jersey 1 it returned a JSON object in case the list had a single element, and logs CLI expects a JSON object as well when calling this endpoint. That should be changed to keep backward compatibility. With returning a wrapper object instead of a list we could achieve the same behaviour.
>  * Fix unit tests



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