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Message-ID: <3e9ed2c20808130934q6b39211kd44900baff9c63f7@mail.gmail.com>
Date: Wed, 13 Aug 2008 18:34:58 +0200
From: "Trygve Hardersen" <trygve.hardersen@gmail.com>
To: user@geronimo.apache.org
Subject: Re: Monitoring Memory Usage
In-Reply-To: <48A3058F.40407@berghold.net>
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References: <48A3058F.40407@berghold.net>

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What about:

Runtime rt = Runtime.getRuntime();
long free = rt.maxMemory() - (rt.totalMemory - rt.freeMemory());

I've been using this (with Tomcat, not Geronimo), and while it's not perfect
it gives you an idea of the JVM memory consumption.

Trygve

2008/8/13 Peter L. Berghold <peter@berghold.net>

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> Is there a way to programmatically extract from a running Geronimo
> instance it's memory usage?  Reason I'm asking is I'd like to write a
> Nagios plugin for this to provide alarms when the JVM runs out of memory.
>
>
> - --
>
> Peter L. Berghold     http://www.berghold.net   peter@berghold.net
> Unix Professional     Dog Agility Fan   Crazed Cook
> "Those who fail to learn from history are condemned to repeat it."
>
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<div dir="ltr">What about:<br><br>Runtime rt = Runtime.getRuntime();<br>long free = rt.maxMemory() - (rt.totalMemory - rt.freeMemory());<br><br>I&#39;ve been using this (with Tomcat, not Geronimo), and while it&#39;s not perfect it gives you an idea of the JVM memory consumption.<br>
<br>Trygve<br><br><div class="gmail_quote">2008/8/13 Peter L. Berghold <span dir="ltr">&lt;<a href="mailto:peter@berghold.net">peter@berghold.net</a>&gt;</span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
-----BEGIN PGP SIGNED MESSAGE-----<br>
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<br>
Is there a way to programmatically extract from a running Geronimo<br>
instance it&#39;s memory usage? &nbsp;Reason I&#39;m asking is I&#39;d like to write a<br>
Nagios plugin for this to provide alarms when the JVM runs out of memory.<br>
<br>
<br>
- --<br>
<br>
Peter L. Berghold &nbsp; &nbsp; <a href="http://www.berghold.net" target="_blank">http://www.berghold.net</a> &nbsp; <a href="mailto:peter@berghold.net">peter@berghold.net</a><br>
Unix Professional &nbsp; &nbsp; Dog Agility Fan &nbsp; Crazed Cook<br>
&quot;Those who fail to learn from history are condemned to repeat it.&quot;<br>
<br>
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<br>
iD8DBQFIowWOUM9/01RIhaARAn9WAKCN8+CnDcYYEaQZQItt47dRl5QTcACgsWFt<br>
NHjPF+uuKEvxzXI7vHUNNBc=<br>
=5hm6<br>
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</blockquote></div><br></div>

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