thankyou Neil!
We are using win2K Server, IIS5, CFMX6.1 UPD 1, 4 Xeon P4s, and 2GB of RAM
We use Oracle 9i and we use the JDBC drivers that come with CF
I have this as teh JVM settings,
java.args=-server -Xms640m -Xmx640m -Dsun.io.useCanonCaches=false
-Xbootclasspath/a:"{application.home}/servers/cfusion/cfusion-ear/cfusion-war/WEB-INF/cfusion/lib/webchartsJava2D.jar"
-XX:MaxPermSize=128m -XX:PermSize=64m -XX:+UseConcMarkSweepGC
-XX:NewSize=48m -DJINTEGRA_NATIVE_MODE -DJINTEGRA_PREFETCH_ENUMS
I have metrics logging on, here is a sample
DateTime,,listenTh,delayTh,idleTh,busyTh,totalTh,delayRq,droppedRq,delayMs,TotalMem,FreeMem,J2EESessions
02/28 08:51:11,metrics ,2,0,7,4,13,0,0,0,655296,499693,1
02/28 08:51:43,metrics ,2,0,9,2,13,0,0,0,655296,541514,1
02/28 08:52:13,metrics ,2,0,11,0,13,0,0,0,655296,511963,1
02/28 08:52:45,metrics ,11,0,5,2,18,0,0,0,655296,571183,1
When the server hangs, the metrics are similar, no indication of
nastiness at all
have some logging of GCs on, a sample here
02/28 15:35:36,debug MM GC collected 0 messages, 0 remaining.
02/28 15:43:36,debug MM GC collected 0 messages, 0 remaining.
02/28 15:51:36,debug MM GC collected 0 messages, 0 remaining.
We have disabled 'maintain connections' for all DSNs thinking its
related to JDBC stuffs.
relevant jrun.xml settings
<service class="jrun.servlet.jrpp.JRunProxyService" name="ProxyService">
<attribute name="activeHandlerThreads">25</attribute>
<attribute name="backlog">500</attribute>
<attribute name="deactivated">false</attribute>
<attribute name="interface">*</attribute>
<attribute name="maxHandlerThreads">1000</attribute>
<attribute name="minHandlerThreads">20</attribute>
<attribute name="port">51002</attribute>
<attribute name="threadWaitTimeout">180</attribute>
<attribute name="timeout">300</attribute>
considering teh metrics logging, there does not appear anything wrong
with these.
At this poitn, the only thing I can see to do is stack/thread traces.
But time constraints, I'm supposed to be developing!, are leading us
to think of a schedule restart of the cf instance.
We have one app that continually gets page request times in the 15 to
20 second range, but the metrics logging seems ok with that. We are
planning on moving it to its own instance, thinking its the problem
child.
hope this helps some.
Doug
On Mon, 28 Feb 2005 19:59:01 -0000, Robertson-Ravo, Neil (RX)
<[EMAIL PROTECTED]> wrote:
> Sorry, coming in latee on this one...what are your Java settings (Heap Size,
> Perm Size, New etc..). What are the specs of your server? This looks like
> a GC issue.
>
> Have you ran any extensive monitoring? What SQL backend do you have? What
> drivers?
>
> I can help you on this issue as I have had 6-8 months of memory/cf debugging
> under my belt - believe me, I have tweaked and set thousands of values for a
> decent performance setup.
>
> Give me as much info as you can on settings/configs etc..and we can
> hopefully resolve this.
>
> Neil
> Member of TMM CF
>
>
> -----Original Message-----
> From: Douglas Knudsen
> To: CF-Server
> Sent: 28/02/2005 19:10
> Subject: Re: memory use and CF
>
> thinking about this....we do use CFLDAP for all authentication. I
> have read somewhere that this tag can be an issue. Anyone experience
> this?
>
> On Mon, 28 Feb 2005 13:20:27 -0500, Douglas Knudsen
> <[EMAIL PROTECTED]> wrote:
> > nope, debugging is off in our production environments, something I
> > speak LOUDLY about amongst my team. Thanks for the input.
> >
> >
> > On Mon, 28 Feb 2005 10:06:26 -0800, Cameron Childress
> > <[EMAIL PROTECTED]> wrote:
> > > I've seen several reports lately that leaving Debugging turned on
> will
> > > also cause memory leaks in CF. Is it turned on on these boxes?
> > >
> > > -Cameron
> > >
> > > On Mon, 28 Feb 2005 08:42:08 -0500, Douglas Knudsen
> > > <[EMAIL PROTECTED]> wrote:
> > > > Running CFMX6.1 UPD1 on JRun with J2EE install.
> > > > What is the difference between memory use as seen in Windows Task
> > > > Manager and memory use in the metrics logging via JRun? I got the
> JVM
> > > > memory set to 640m in the jvm.config file. According to metrics
> > > > logging I see many entries like
> > > >
> > > > TotalMem,FreeMem
> > > > 655296,545928
> > > >
> > > > with the FreeMem rarely less than 400000.
> > > >
> > > > At the same time I see that according to task manager, the jrun
> > > > instance is using about 750,000k. This figure slowy climbs from
> about
> > > > 350,000k when the JRun service is started. When it reachs a bit
> over
> > > > 800,000k the server starts to hang.
> > > >
> > > > Any thoughts?
> > > >
> > > > --
> > > > Douglas Knudsen
> > > > http://www.cubicleman.com
> > > > this is my signature, like it?
> > > >
> > > >
> > >
> > >
>
>
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