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From "Li Lu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3431) Sub resources of timeline entity needs to be passed to a separate endpoint.
Date Tue, 21 Apr 2015 23:24:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-3431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14506003#comment-14506003
] 

Li Lu commented on YARN-3431:
-----------------------------

Hi [~zjshen], the latest patch LGTM. One quick question: maybe we'd like to add some prefix
to the fields we (implicitly) add to the info field of an entity? In this way we can further
reduce the chance for user defined info fields to conflict with our implicitly added fields.


> Sub resources of timeline entity needs to be passed to a separate endpoint.
> ---------------------------------------------------------------------------
>
>                 Key: YARN-3431
>                 URL: https://issues.apache.org/jira/browse/YARN-3431
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>         Attachments: YARN-3431.1.patch, YARN-3431.2.patch, YARN-3431.3.patch, YARN-3431.4.patch,
YARN-3431.5.patch
>
>
> We have TimelineEntity and some other entities as subclass that inherit from it. However,
we only have a single endpoint, which consume TimelineEntity rather than sub-classes and this
endpoint will check the incoming request body contains exactly TimelineEntity object. However,
the json data which is serialized from sub-class object seems not to be treated as an TimelineEntity
object, and won't be deserialized into the corresponding sub-class object which cause deserialization
failure as some discussions in YARN-3334 : https://issues.apache.org/jira/browse/YARN-3334?focusedCommentId=14391059&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14391059.



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