Peter Szucs created YARN-11897:
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Summary: 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: 3.1.5
Reporter: Peter Szucs
Assignee: Peter Szucs
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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