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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-2901) Document practical use-cases for replication
Date Tue, 17 Jun 2014 06:12:02 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14033470#comment-14033470
] 

ASF subversion and git services commented on ACCUMULO-2901:
-----------------------------------------------------------

Commit 3ed4b2796ac95808af7aef62d93e6607cedc4d62 in accumulo's branch refs/heads/master from
[~elserj]
[ https://git-wip-us.apache.org/repos/asf?p=accumulo.git;h=3ed4b27 ]

ACCUMULO-2901 Document cases where replication won't work well

the architecture serves itself well for a certain set of problems, but is not a universal
solution in its current implementation. provide a warning for some of those edge cases to
manage user expectations and not mislead them.


> Document practical use-cases for replication
> --------------------------------------------
>
>                 Key: ACCUMULO-2901
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2901
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: replication
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>             Fix For: 1.7.0
>
>
> Replication, while it is a cool feature, does have situations where it's not 100% foolproof
and isn't guaranteed to provide eventual consistency given all situations.
> Document these cases, how they could be avoided with certain configuration, and any implications
of those configurations.
> Short list
> * Failure on ACK from peer to primary could result in re-replication
> * Combiners might not be accurate



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