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https://issues.apache.org/jira/browse/YARN-2401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14524058#comment-14524058
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Junping Du commented on YARN-2401:
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Just sync with Zhijie offline that we have new version of TimelineService and
we should keep compatible of API for old service. Will close it as won't fix.
> Rethinking of the HTTP method of TimelineWebServices#postEntities
> -----------------------------------------------------------------
>
> Key: YARN-2401
> URL: https://issues.apache.org/jira/browse/YARN-2401
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Zhijie Shen
> Assignee: Zhijie Shen
>
> Now TimelineWebServices#postEntities is using POST. However, semantically,
> postEntities is creating an entity or append more data into it. POST may not
> be the most proper method to for this API.
> AFAIK, PUT is used to update the entire resource and supposed to be
> idempotent. Therefore, I'm not sure it's an idea to change the method to PUT
> because once the entity is created, the following updates are actually
> appending more data to the existing one. The best fit should be PATCH,
> however, it requires the additional implementation at the web services side.
> Hence, somebody online suggested using POST for partial non-idempotent update
> as well. We need to think more about it.
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