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Posted to commits@cassandra.apache.org by "Brandon Williams (JIRA)" <ji...@apache.org> on 2015/02/20 17:14:12 UTC

[jira] [Assigned] (CASSANDRA-8835) 100% CPU spikes from disruptor thrift server

     [ https://issues.apache.org/jira/browse/CASSANDRA-8835?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brandon Williams reassigned CASSANDRA-8835:
-------------------------------------------

    Assignee: Pavel Yaskevich

> 100% CPU spikes from disruptor thrift server
> --------------------------------------------
>
>                 Key: CASSANDRA-8835
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8835
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: 2.0.11, hsha, JDK7u65, ~6,000 connections per machine
>            Reporter: Rick Branson
>            Assignee: Pavel Yaskevich
>
> Seeing big CPU spikes (to 100%) inside of the TDisruptorServer when running hsha. perf top loaded with JVM symbols shows this one floating to the top for anywhere between 15 and 90 seconds and then falling down:
> Lcom/thinkaurelius/thrift/TDisruptorServer$SelectorThread;.selectorIterationComplete in Lcom/thinkaurelius/thrift/TDisruptorServer$AbstractSelectorThread;.select



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