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From "Benedict (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6920) LatencyMetrics can return infinity
Date Thu, 03 Apr 2014 23:07:16 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13959400#comment-13959400
] 

Benedict commented on CASSANDRA-6920:
-------------------------------------

The fact that it is deprecated bears no relation to how much it costs to maintain it, and
the impact of the synchronized block. Let's revert the patch, if we do anything, not leave
this synchronized block in.

> LatencyMetrics can return infinity 
> -----------------------------------
>
>                 Key: CASSANDRA-6920
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6920
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Nick Bailey
>            Assignee: Nick Bailey
>             Fix For: 1.2.17, 2.0.7, 2.1 beta2
>
>         Attachments: 6920-cassandra-1.2.patch, 6920-cassandra-2.0.patch, 6920-infinity-metrics.patch
>
>
> There is a race condition when updating the recentLatency metrics exposed from LatencyMetrics.
> Attaching a patch with a test that exposes the issue and a potential fix.



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