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https://issues.apache.org/jira/browse/YARN-4265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14981540#comment-14981540
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Li Lu commented on YARN-4265:
-----------------------------

This patch relies on YARN-3942.002 and YARN-4234.3 patches. 

> Provide new timeline plugin storage to support fine-grained entity caching
> --------------------------------------------------------------------------
>
>                 Key: YARN-4265
>                 URL: https://issues.apache.org/jira/browse/YARN-4265
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Li Lu
>            Assignee: Li Lu
>         Attachments: YARN-4265-trunk.poc_001.patch
>
>
> To support the newly proposed APIs in YARN-4234, we need to create a new 
> plugin timeline store. The store may have similar behavior as the 
> EntityFileTimelineStore proposed in YARN-3942, but cache date in cache id 
> granularity, instead of application id granularity. Let's have this storage 
> as a standalone one, instead of updating EntityFileTimelineStore, to keep the 
> existing store (EntityFileTimelineStore) stable. 



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