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From "George Courtsunis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-2495) Add a proper retry mechanism for counters in case of failed request
Date Sat, 06 Oct 2012 23:49:18 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13471115#comment-13471115
] 

George Courtsunis commented on CASSANDRA-2495:
----------------------------------------------

Any update? Would really love to have this feature in place.
                
> Add a proper retry mechanism for counters in case of failed request
> -------------------------------------------------------------------
>
>                 Key: CASSANDRA-2495
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2495
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 0.8 beta 1
>            Reporter: Sylvain Lebresne
>         Attachments: marker_idea.txt
>
>
> Contrarily to standard insert, counter increments are not idempotent. As such, replaying
a counter mutation when a TimeoutException occurs could lead to an over-count. This alone
limits the use cases for which counters are a viable solution, so we should try to come up
with a mechanism that allow the replay of a failed counter mutation without the risk of over-count.


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