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From "Lyuben Todorov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6920) LatencyMetrics can return infinity
Date Thu, 03 Apr 2014 15:52:15 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13958901#comment-13958901
] 

Lyuben Todorov commented on CASSANDRA-6920:
-------------------------------------------

Just to verify, the stress tool shows no signs of performance degradation (legacy completes
within 48 sec on my machine regardless of the {{synchronise}} block)

> 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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