Lars Hofhansl created PHOENIX-3892:
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             Summary: Allow regionobserver to optionally skip 
postPut/postDelete when postBatchMutate was called
                 Key: PHOENIX-3892
                 URL: https://issues.apache.org/jira/browse/PHOENIX-3892
             Project: Phoenix
          Issue Type: Bug
            Reporter: Lars Hofhansl


Right now a RegionObserver can only statically implement one or the other. In 
scenarios where we need to work sometimes on the single postPut and postDelete 
hooks and sometimes on the batchMutate hooks, there is currently no place to 
convey this information to the single hooks. I.e. the work has been done in the 
batch, skip the single hooks.

There are various solutions:
1. Allow some state to be passed _per operation_.
2. Remove the single hooks and always only call batch hooks (with a default 
wrapper for the single hooks).
3. more?

[~apurtell], what we had discussed a few days back.



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