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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-2860) Support ConditionalMutations with Replication
Date Wed, 18 Jun 2014 20:18:26 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2860?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14036306#comment-14036306
] 

Josh Elser commented on ACCUMULO-2860:
--------------------------------------

[~ecn] just sent me a note about this: apparently when a {{ConditionalMutation}} is sent over
the wire to the tserver, a regular {{Mutation}} is written to the WAL, not a {{ConditionalMutation}}.

I believe I implemented replication to just ignore any {{ConditionalMutations}} that are found
reading the WALs, which means that replication of {{ConditionalMutation}}s may already work
(but not be "safe" in the context of a multi-primary configuration with overlapping updates).

This deserves some testing to verify.

> Support ConditionalMutations with Replication
> ---------------------------------------------
>
>                 Key: ACCUMULO-2860
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2860
>             Project: Accumulo
>          Issue Type: Wish
>          Components: replication
>            Reporter: Josh Elser
>
> ConditionalMutations are presently unsupported with a table that is being replicated.
It would be nice if we could figure out a way to make them work, although I have absolutely
no idea what such a solution would look like.



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