[Casper] Java freezing up JSS - Which version of JSS

Mon Jun 1 12:18:32 PDT 2009

We were having the issue with the JSS freezing up when our scheduled
task to report in would run.    We bumped from 8GB of RAM to 32GB of RAM
and gave the max to web app and now we're good to go.   No issues.
That was on a leopard server running casper 6.01 and in 64 bit mode.

-Dusty-

Dustin  Dorey

Technology Support Cluster Specialist

Independant School District 196

Rosemount-Apple Valley-Eagan Public Schools

dustin.dorey at district196.org

651|423|7971

From: casper-bounces at list.jamfsoftware.com
[mailto:casper-bounces at list.jamfsoftware.com] On Behalf Of Ben W Young
Sent: Monday, June 01, 2009 7:49 AM
To: Casper List
Subject: Re: [Casper] Java freezing up JSS - Which version of JSS

On the issue of Java crashing, has anyone upgraded to the lasted Java
release 7 for 10.4 Server and had any problems or improvements?

Ben.

On 2/04/09 7:44 AM, "Criss Myers" <cmyers at uclan.ac.uk> wrote:

Ah well I have 32gb of ram but about 10 startup items

On 1 Apr 2009, at 21:39, Ben W Young <ben.w.young at det.nsw.edu.au> wrote:

At once stage I had 10 policies running on startup for about 300+
computers at all at the same time on a server with 1GB RAM. 

On 31/03/09 6:52 PM, "Criss Myers" <cmyers at uclan.ac.uk
<mailto:cmyers at uclan.ac.uk> > wrote:

How many startup policies do u have?

On 31 Mar 2009, at 05:49, Ben W Young <ben.w.young at det.nsw.edu.au
<mailto:ben.w.young at det.nsw.edu.au> > wrote:

We have this issue as well and have found that we are hitting the JSS to
hard with Policies that run at startup.  I have made some changes to the
JSS as recommended below and will advise on the outcome.

Regards,

Ben W Young
Technology Services Administrator

On 27/03/09 3:06 AM, "Dorey, Dustin" <Dustin.Dorey at district196.org
<mailto:Dustin.Dorey at district196.org>
<mailto:Dustin.Dorey at district196.org
<mailto:Dustin.Dorey at district196.org> > > wrote:

Well that was my thought at first too, except when it just happened
yesterday, and we are on spring break.   Most of our client machines are
off.   
That being said we have only one scheduled task scoped to all of our
computers and randomized by 45 minutes with just under 5k clients.    
We set that one up on our roll out and I haven't messed with it since.
Just seems weird that it would still hang due to that even though most
of the clients are off and not reporting in anyway.  

I'll try increasing the packet size again, not sure that I can change
the everyhour bit though since I don't want to set it to report only one
day a week or something.   And there are not any options in scheduled
tasks to do like every 3 hours and randomize by 2 hours or something.

Thanks for the tips,
-Dusty-

From: casper-bounces at list.jamfsoftware.com
<mailto:casper-bounces at list.jamfsoftware.com>
<mailto:casper-bounces at list.jamfsoftware.com
<mailto:casper-bounces at list.jamfsoftware.com> >
[mailto:casper-bounces at list.jamfsoftware.com
<mailto:casper-bounces at list.jamfsoftware.com>
<mailto:casper-bounces at list.jamfsoftware.com
<mailto:casper-bounces at list.jamfsoftware.com> > ] On Behalf Of Ernst,
Craig S.
Sent: Thursday, March 26, 2009 10:51 AM
To: Dorey, Dustin; Jason Halvorson; Casper List
Subject: Re: [Casper] Java freezing up JSS - Which version of JSS

What and how often do you have scheduled tasks setup for, and how many
clients would hit any of those scheduled tasks at any given time.

I'm wondering if your hitting your JSS too much with the clients.

Craig E

On 3/26/09 10:44 AM, "Dorey, Dustin" <Dustin.Dorey at district196.org
<mailto:Dustin.Dorey at district196.org>
<mailto:Dustin.Dorey at district196.org
<mailto:Dustin.Dorey at district196.org> > > wrote:
Casper Suite 6.01
Web App memory set to just a tick under 2GB
Database Size: 1.7 G
Max Packet size set to  6MB
Tomcat Min. Memory 256; max 2048
Server has 8Gb total

From: casper-bounces at list.jamfsoftware.com
<mailto:casper-bounces at list.jamfsoftware.com>
<mailto:casper-bounces at list.jamfsoftware.com
<mailto:casper-bounces at list.jamfsoftware.com> >
[mailto:casper-bounces at list.jamfsoftware.com
<mailto:casper-bounces at list.jamfsoftware.com>
<mailto:casper-bounces at list.jamfsoftware.com
<mailto:casper-bounces at list.jamfsoftware.com> > ] On Behalf Of Jason
Halvorson
Sent: Thursday, March 26, 2009 10:12 AM
To: Casper List
Subject: Re: [Casper] Java freezing up JSS - Which version of JSS

Which version of the JSS do you have?

Jason D. Halvorson 
Analyst/Programmer 
Workstation Support Services
Phone: 507-538-4225
Email:  halvorson.jason at mayo.edu <mailto:halvorson.jason at mayo.edu>
<mailto:halvorson.jason at mayo.edu <mailto:halvorson.jason at mayo.edu> > 
____________________________
Mayo Clinic
200 First Street SW
Rochester, MN 55905
www.mayoclinic.org <http://www.mayoclinic.org>
<http://www.mayoclinic.org <http://www.mayoclinic.org> > 

________________________________

From: "Dorey, Dustin" <Dustin.Dorey at district196.org
<mailto:Dustin.Dorey at district196.org>
<mailto:Dustin.Dorey at district196.org
<mailto:Dustin.Dorey at district196.org> > >
Date: Wed, 25 Mar 2009 15:18:07 -0500
To: Casper List <casper at list.jamfsoftware.com
<mailto:casper at list.jamfsoftware.com>
<mailto:casper at list.jamfsoftware.com
<mailto:casper at list.jamfsoftware.com> > >
Subject: [Casper] Java freezing up JSS

Hey has anyone else encountered an issue where every once in a while
java seems to eat up a bunch of available memory and then the JSS will
stop responding?   If I go in and kill the java process it just restarts
and everything is good to go, but it's kind of obnoxious, and very
random.   It just happened here, and no one was actively using Casper.
In fact we're on spring break so most  of the computers that are in our
policies and such are shut off too.  I had 0 connections to the casper
share, and java was eating up just over 2GB of Real Memory and I believe
over 5GB of virtual.

Thanks
-Dusty-

Dustin  Dorey
Technology Support Cluster Specialist
Independant School District 196
Rosemount-Apple Valley-Eagan Public Schools
dustin.dorey at district196.org <mailto:dustin.dorey at district196.org>
<mailto:dustin.dorey at district196.org
<mailto:dustin.dorey at district196.org> > 
651|423|7971

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