I have not seen it in writing, but when we were doing performance testing of the 7.x mid-tiers over the last two years we found that any max setting over 1536 made tomcat unstable or hindered startup. This was true in both Win2K3 x86 and x64 environments, with several versions of tomcat (all 32-bit of course). Until we get a 64-bit tomcat, 64-bit JVM, and 64-bit mid-tier that actually work together properly, I'm guessing that this restriction will remain in place.
Christopher Strauss, Ph.D. Call Tracking Administration Manager University of North Texas Computing & IT Center http://itsm.unt.edu/ From: Action Request System discussion list(ARSList) [mailto:[email protected]] On Behalf Of Begosh, Kevin Sent: Friday, February 13, 2009 8:35 AM To: [email protected] Subject: Re: Tomcat Settings for ARS 7.1 ** I was actually told by a web server person at BMC, I will leave their name out that said when dealing with java heap size and Tomcat for RKM/Midtier you should not put the maximum size any higher than 1536MB regardless of how much RAM you server might have. They said that if you do Tomcat will not start. Has anyone ever heard of this. Kevin Begosh, RSP Tech Ops Enterprise Business Services 301-791-3540 Phone 410-422-3623 Cell [email protected] From: Action Request System discussion list(ARSList) [mailto:[email protected]] On Behalf Of Joe DeSouza Sent: Friday, February 06, 2009 1:43 PM To: [email protected] Subject: Re: Tomcat Settings for ARS 7.1 ** The max should not be larger than 65 to 70 percent of the total available free memory (unused) before Tomcat is started. Anything larger and you will have problems even starting the service or it may crash while stopping tomcat. Joe ________________________________ From: "Begosh, Kevin" <[email protected]> To: [email protected] Sent: Thursday, February 5, 2009 9:30:58 PM Subject: Re: Tomcat Settings for ARS 7.1 ** For the Min and Max of the memory pool can you make it to big? Like for instance we have it as 300 and 1024. I do not know who made it that I just checked after this email. Kevin Begosh, RSP Tech Ops Enterprise Business Services 301-791-3540 Phone 410-422-3623 Cell [email protected]<mailto:[email protected]> From: Action Request System discussion list(ARSList) [mailto:[email protected]] On Behalf Of YHK Sent: Thursday, February 05, 2009 3:08 PM To: [email protected] Subject: Re: Tomcat Settings for ARS 7.1 ** Go into program files>apache tomcat 5x>monitor tomcat this will open the properties dialog go to Java tab and set min to 512mb and max to 1536(on Apache for webserver you can set up to 2gb) from General tab, Stop tomcat and Start You maybe crashing due to default JVM max which is way too low, 256mb Hope this helps! YHK On Thu, Feb 5, 2009 at 4:34 PM, kishorkv <[email protected]<mailto:[email protected]>> wrote: ** We've just moved to Remedy 7.1 with IIS-Tomcat for Mid Tier. Q1. Where I can get the Remedy recommended configuration for IIS-Tomcat? Q2. How to change the JVM setting for Tomcat? Q3. How to make Tomcat logs timestamp along with the log messages. Reason: I see my Tomcat crashing every 2 days once without any error messages. __Platinum Sponsor: RMI Solutions ARSlist: "Where the Answers Are" html___ __Platinum Sponsor: RMI Solutions ARSlist: "Where the Answers Are" html___ _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org Platinum Sponsor: RMI Solutions ARSlist: "Where the Answers Are"
