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https://issues.apache.org/jira/browse/HBASE-3787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13702160#comment-13702160
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Sergey Shelukhin commented on HBASE-3787:
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FWIW: this paper (I don't remember where I obtained the pdf frankly, I cannot
find it in normal access)
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5697970&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F5685607%2F5697799%2F05697970.pdf%3Farnumber%3D5697970
relies on well-defined return value for increments, as well as on tables with
very large volume of increments to the same value (transaction ids of various
sorts). Granted, HBase is probably not the best tool for the job in this case...
> Increment is non-idempotent but client retries RPC
> --------------------------------------------------
>
> Key: HBASE-3787
> URL: https://issues.apache.org/jira/browse/HBASE-3787
> Project: HBase
> Issue Type: Bug
> Components: Client
> Affects Versions: 0.94.4, 0.95.2
> Reporter: dhruba borthakur
> Assignee: Sergey Shelukhin
> Priority: Critical
> Fix For: 0.95.2
>
> Attachments: HBASE-3787-partial.patch, HBASE-3787-v0.patch,
> HBASE-3787-v1.patch, HBASE-3787-v2.patch, HBASE-3787-v3.patch,
> HBASE-3787-v4.patch, HBASE-3787-v5.patch, HBASE-3787-v5.patch
>
>
> The HTable.increment() operation is non-idempotent. The client retries the
> increment RPC a few times (as specified by configuration) before throwing an
> error to the application. This makes it possible that the same increment call
> be applied twice at the server.
> For increment operations, is it better to use
> HConnectionManager.getRegionServerWithoutRetries()? Another option would be
> to enhance the IPC module to make the RPC server correctly identify if the
> RPC is a retry attempt and handle accordingly.
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