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From "James Taylor (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-18482) Enable state to be passed between the batch mutate coprocessors
Date Sun, 30 Jul 2017 17:36:02 GMT
James Taylor created HBASE-18482:
------------------------------------

             Summary: Enable state to be passed between the batch mutate coprocessors
                 Key: HBASE-18482
                 URL: https://issues.apache.org/jira/browse/HBASE-18482
             Project: HBase
          Issue Type: Improvement
            Reporter: James Taylor


For secondary indexing, Phoenix leverages the coprocessors that fire during the processing
of a batch mutate: preBatchMutate, postBatchMutate, and postBatchMutateIndispensably. It would
be very helpful if we had a way of passing state between these calls. One solution would be
to provide a member variable in the MiniBatchOperationInProgress class that gets passed from
invocation to invocation. Within doMiniBatchMutation, the instantiation of the MiniBatchOperationInProgress
would simply set this context member variable based on the value from the previous MiniBatchOperationInProgress
instantiation. Another solution would be to allow the a context object to be set on the ObserverContext
which would then be available to the other calls.



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