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From "Edward Capriolo (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-12626) LWT contention appears to be under reported
Date Tue, 18 Oct 2016 15:45:58 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-12626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15585799#comment-15585799
] 

Edward Capriolo commented on CASSANDRA-12626:
---------------------------------------------

+1 non binding

> LWT contention appears to be under reported
> -------------------------------------------
>
>                 Key: CASSANDRA-12626
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12626
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Observability
>            Reporter: Christopher Batey
>            Assignee: Christopher Batey
>            Priority: Minor
>             Fix For: 3.x
>
>
> I was surprised how little contention was being reported and looking at the code we miss
out reporting contention when there is a timeout at the prepare phase.
> If this {{StorageProxy.beginAndRepairPaxos}} throws then the contentions count isn't
added to the histogram.



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