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List:       mapguide-users
Subject:    Re: [mapguide-users] Java memory leak
From:       Zac Spitzer <zac.spitzer () gmail ! com>
Date:       2013-12-21 13:41:24
Message-ID: CAArGWaRd0wgWHE5U5QcfxfEFmqgfy-omwV+b41sjEFGGnnFkSg () mail ! gmail ! com
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"out of memory errors"

where are these showing up? can you please post extracts from the log files?




On Sat, Dec 21, 2013 at 2:33 AM, Jackie Ng <jumpinjackie@gmail.com> wrote:

> You should check if your "memory leak" is not actually the resource demands
> of 150 users outpacing the resource cleanup of the JVM garbage collector.
>
> Try connecting jvisualvm.exe to the Tomcat instance and look at the memory
> usage graphs. Do you see consistent drops indicating the JVM garbage
> collector is at work? Or is it just a slowly rising plateau? The latter
> would indicate some kind of memory leak. The former would indicate more
> fine
> tuning of JVM options is required.
>
> - Jackie
>
>
>
> --
> View this message in context:
> http://osgeo-org.1560.x6.nabble.com/Java-memory-leak-tp5095257p5095322.html
> Sent from the MapGuide Users mailing list archive at Nabble.com.
> _______________________________________________
> mapguide-users mailing list
> mapguide-users@lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapguide-users
>



-- 
Zac Spitzer
+61 405 847 168

[Attachment #5 (text/html)]

<div dir="ltr">&quot;out of memory errors&quot;  <div><br></div><div>where are these \
showing up? can you please post extracts from the log \
files?<div><br></div><div><br></div></div></div><div class="gmail_extra"><br><br><div \
class="gmail_quote">

On Sat, Dec 21, 2013 at 2:33 AM, Jackie Ng <span dir="ltr">&lt;<a \
href="mailto:jumpinjackie@gmail.com" \
target="_blank">jumpinjackie@gmail.com</a>&gt;</span> wrote:<br><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex">

You should check if your &quot;memory leak&quot; is not actually the resource \
demands<br> of 150 users outpacing the resource cleanup of the JVM garbage \
collector.<br> <br>
Try connecting jvisualvm.exe to the Tomcat instance and look at the memory<br>
usage graphs. Do you see consistent drops indicating the JVM garbage<br>
collector is at work? Or is it just a slowly rising plateau? The latter<br>
would indicate some kind of memory leak. The former would indicate more fine<br>
tuning of JVM options is required.<br>
<br>
- Jackie<br>
<br>
<br>
<br>
--<br>
View this message in context: <a \
href="http://osgeo-org.1560.x6.nabble.com/Java-memory-leak-tp5095257p5095322.html" \
target="_blank">http://osgeo-org.1560.x6.nabble.com/Java-memory-leak-tp5095257p5095322.html</a><br>
 <div class="im HOEnZb">Sent from the MapGuide Users mailing list archive at \
Nabble.com.<br> </div><div class="HOEnZb"><div \
class="h5">_______________________________________________<br> mapguide-users mailing \
list<br> <a href="mailto:mapguide-users@lists.osgeo.org">mapguide-users@lists.osgeo.org</a><br>
 <a href="http://lists.osgeo.org/mailman/listinfo/mapguide-users" \
target="_blank">http://lists.osgeo.org/mailman/listinfo/mapguide-users</a><br> \
</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div \
dir="ltr">Zac Spitzer<br>+61 405 847 168<br><br></div> </div>



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