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From "Hiram Chirino (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (APLO-351) out of memory
Date Thu, 20 Feb 2014 13:12:21 GMT

    [ https://issues.apache.org/jira/browse/APLO-351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13906941#comment-13906941
] 

Hiram Chirino commented on APLO-351:
------------------------------------

80,000 in 3G of memory is more clients than I would expect.  I suspect your not running any
load on on those clients.  Once you start running messaging load on the broker, it's going
to need even more memory.

'-Xms6G -Xms1G ' does not seem valid to me.  Did you mean to do ' -Xmx6G -Xms1G'?  In any
case if the apollo-broker-service fails to startup a broker, try starting the broker in the
foreground using 'apollo-broker run'.  That way is you can see if the JVM outputs any errors
to the console screen.

> out of memory
> -------------
>
>                 Key: APLO-351
>                 URL: https://issues.apache.org/jira/browse/APLO-351
>             Project: ActiveMQ Apollo
>          Issue Type: Bug
>          Components: apollo-broker
>    Affects Versions: 1.6
>            Reporter: oscar
>         Attachments: 18AADBAA-5058-4344-AAC0-D1C51891C194.png, 37DF6BCA-9707-4583-943D-C0D0B6408FDD.png,
8ADF01D2-47BB-4666-8D40-145BBC55B593.png
>
>
> use apollo + mqtt to publish message,but when have 100,000 clients, the apollo.log prints:
> 2014-02-18 19:31:28,475 | WARN  | java.lang.OutOfMemoryError: Java heap space | 14444b747fc
> 2014-02-18 19:31:28,475 | WARN  | java.lang.OutOfMemoryError: Java heap space | 14444b747fd
> 2014-02-18 19:31:35,422 | WARN  | java.lang.OutOfMemoryError: Java heap space | 14444b747fe
> 2014-02-18 19:31:41,703 | WARN  | java.lang.OutOfMemoryError: GC overhead limit exceeded
| 14444b747ff
> 2014-02-18 19:31:54,934 | WARN  | java.lang.OutOfMemoryError: GC overhead limit exceeded
| 14444b74800
> 2014-02-18 19:32:07,494 | WARN  | java.lang.OutOfMemoryError: Java heap space | 14444b74803
> 2014-02-18 19:32:01,211 | WARN  | java.lang.OutOfMemoryError: Java heap space | 14444b74802
> 2014-02-18 19:32:01,211 | WARN  | java.lang.OutOfMemoryError: Java heap space | 14444b74801
> use export JVM_FLAGS="-server -Xmx3G -Xms1G" in apollo-service
> my system is linux (CentOS 6.5),32G memory,8 cpus



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