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Date: Thu, 16 Feb 2012 20:54:59 +0000 (UTC)
From: "Hiram Chirino (Assigned) (JIRA)" <jira@apache.org>
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Subject: [jira] [Assigned] (APLO-160) Apollo becoming unresponsive under
 stress test
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     [ https://issues.apache.org/jira/browse/APLO-160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hiram Chirino reassigned APLO-160:
----------------------------------

    Assignee: Hiram Chirino
    
> Apollo becoming unresponsive under stress test
> ----------------------------------------------
>
>                 Key: APLO-160
>                 URL: https://issues.apache.org/jira/browse/APLO-160
>             Project: ActiveMQ Apollo
>          Issue Type: Bug
>         Environment: apollo-1.1-20120209.032648-24
>            Reporter: Lionel Cons
>            Assignee: Hiram Chirino
>         Attachments: apollo.dump
>
>
> While running a stress test against apollo-1.1-20120209.032648-24 (many concurrent TCP connections), the broker became unresponsive.
> It logged several times: java.lang.OutOfMemoryError: GC overhead limit exceeded
> It also logged other warnings, probably related:
> 2012-02-14 14:14:49,273 | WARN  | handle failed | org.eclipse.jetty.io.nio | Apollo Task
> 2012-02-14 14:18:39,073 | WARN  | Problem scavenging sessions | org.eclipse.jetty.server.session | HashSessionScavenger-0
> It could not be stopped either, I had to kill -9 it.
> What can be done to avoid these problems?
> FWIW, java has been started with -server -Xmx8192m -Xms4096m

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