Karthik Kambatla commented on YARN-2131:

bq. we should use multi operation here
Multi makes sense. [~rkanter] - will you be able to address these two comments? 

In general, the ZKRMStateStore has become complicated with all the retry logic 
and hard to maintain. Should we just use something like Curator and simplify 
it? I recently used Curator for Llama HA fencing - it works like a charm and 
the code is simple and maintainable. 

> Add a way to format the RMStateStore
> ------------------------------------
>                 Key: YARN-2131
>                 URL: https://issues.apache.org/jira/browse/YARN-2131
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: resourcemanager
>    Affects Versions: 2.4.0
>            Reporter: Karthik Kambatla
>            Assignee: Robert Kanter
>             Fix For: 2.6.0
>         Attachments: YARN-2131.patch, YARN-2131.patch
> There are cases when we don't want to recover past applications, but recover 
> applications going forward. To do this, one has to clear the store. Today, 
> there is no easy way to do this and users should understand how each store 
> works.

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