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From "Donald Woods (JIRA)" <j...@apache.org>
Subject [jira] Commented: (GERONIMO-2878) JVM stats exposed through JMX are incorrect and missing init/max heap size
Date Mon, 30 Jul 2007 15:03:52 GMT

    [ https://issues.apache.org/jira/browse/GERONIMO-2878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12516410
] 

Donald Woods commented on GERONIMO-2878:
----------------------------------------

>From http://java.sun.com/j2se/1.5.0/docs/guide/management/jconsole.html - Uptime: Total
amount of time since the JVM was started.
A "Time" attribute would be the current OS time since 1970...
Since we now require Java 5 or later, I'm going to use the new in VM ManagementFactory to
get the actual JVM provided mxbean for the correct results.

> JVM stats exposed through JMX are incorrect and missing init/max heap size
> --------------------------------------------------------------------------
>
>                 Key: GERONIMO-2878
>                 URL: https://issues.apache.org/jira/browse/GERONIMO-2878
>             Project: Geronimo
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>          Components: management
>    Affects Versions: 2.0-M5
>         Environment: WinXP, Java 1.5.0_11, JMX Viewer
>            Reporter: Donald Woods
>            Assignee: Donald Woods
>             Fix For: 2.0
>
>
> The statistics for geronimo:J2EEServer=geronimo,name=JVM,j2eeType=JVM are:
> 1) incorrect for JVM Up Time, which shows 1171999222859 msecs. after only about 10 mins.
> 2) does not provide init or max Heap size values for health monitoring - http://java.sun.com/j2se/1.5.0/docs/api/java/lang/management/MemoryUsage.html
> 3) does not provide all of the JVM attributes, as the JVM portlet does

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