Vinod Kumar Vavilapalli commented on YARN-3031:

Quick comment: Following the proposal at YARN-3166, let's put the storage APIs 
in hadoop-yarn-server/hadoop-yarn-server-timelineservice under package 
o.a.h.yarn.server.timelineservice.storage? We shouldn't be exposing these to 
application writers as part of the hadoop-yarn-api records.

> [Storage abstraction] Create backing storage write interface for ATS writers
> ----------------------------------------------------------------------------
>                 Key: YARN-3031
>                 URL: https://issues.apache.org/jira/browse/YARN-3031
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Sangjin Lee
>            Assignee: Vrushali C
>         Attachments: Sequence_diagram_write_interaction.2.png, 
> Sequence_diagram_write_interaction.png, YARN-3031.01.patch, 
> YARN-3031.02.patch, YARN-3031.03.patch
> Per design in YARN-2928, come up with the interface for the ATS writer to 
> write to various backing storages. The interface should be created to capture 
> the right level of abstractions so that it will enable all backing storage 
> implementations to implement it efficiently.

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