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https://issues.apache.org/jira/browse/HBASE-5617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13240982#comment-13240982
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ramkrishna.s.vasudevan commented on HBASE-5617:
-----------------------------------------------
@Andy
Yes, this patch adds some more hooks other than the one specified in the JIRA
title.
My intention was to know if it is ok to add new hooks like the one in the patch.
If it is fine i can raise another JIRA for the same and leave this JIRA with
only hooks for rollbackOfMemStore.
> Provide coprocessor hooks in put flow while rollbackMemstore.
> -------------------------------------------------------------
>
> Key: HBASE-5617
> URL: https://issues.apache.org/jira/browse/HBASE-5617
> Project: HBase
> Issue Type: Improvement
> Components: coprocessors
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 0.96.0
>
> Attachments: HBASE-5617_1.patch
>
>
> With coprocessors hooks while put happens we have the provision to create new
> puts to other tables or regions. These puts can be done with writeToWal as
> false.
> In 0.94 and above the puts are first written to memstore and then to WAL. If
> any failure in the WAL append or sync the memstore is rollbacked.
> Now the problem is that if the put that happens in the main flow fails there
> is no way to rollback the
> puts that happened in the prePut.
> We can add coprocessor hooks to like pre/postRoolBackMemStore. Is any one
> hook enough here?
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