[jira] [Updated] (HBASE-7093) Couple Increments/Appends with Put/Delete(s)

["Varun Sharma (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-7093?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Varun Sharma updated HBASE-7093:
--------------------------------

    Attachment: 7093-v1.txt
    
> Couple Increments/Appends with Put/Delete(s)
> --------------------------------------------
>
>                 Key: HBASE-7093
>                 URL: https://issues.apache.org/jira/browse/HBASE-7093
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.96.0
>            Reporter: Varun Sharma
>            Assignee: Varun Sharma
>         Attachments: 7093-v1.txt
>
>
> See related issue - https://issues.apache.org/jira/browse/HBASE-4583
> Currently, we cannot bundle increment/append with put/delete operations. The above JIRA MVCC'izes the increment/append operations.
> One issue is that increment(s)/append(s) are not idempotent and hence repeating the transaction has an associated issue of leading to incorrect value/append results. This could be solved by passing additional tokens as part of the append(s).
> One possible high level approach could be:
> 1) Class IncrementMutation which inherits from Increment and Mutation
> 2) In the mutateRow call, we add a case for "IncrementMutation" object
> 3) Factor out the code wrapped inside the "lock and MVCC" from increment() function to internalIncrement.
> 4) Call internalIncrement from mutateRow and increment()

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