Hello Ravi, Thats good info to start with..
Since you are running Tomcat as your web server, it has a built in web servelet, so it doesn't need a separate web servelet. Under your tomcat installation folder there will be a file called catalina.out. This file will have some information of your general health of Tomcat. Look for OutOfMemory errors. If this is happening, it is a indication that your heap size is not what it should be at. This on windows can be set on the exectuable that manages Tomcat thats usually found in the sytem tray if you have stuck to defaults while installing tomcat on Windows. Double click on this icon, and set the minimum and max size of heap in the Java tab. Since you asked, note that your max size of heap should never be more than 60 to 70% of the 'total available FREE memory' just before Tomcat is started. And also note that 'total available FREE memory' is different from the 'total memory' on the server. I would also check on the swap space available on the server. Optimize this. Usually Windows auto manages the swap space but that doesn't really mean that the windows auto management works best all the time. Have your system admins look at the swap space and ask them to set it to what may best work on your server given your resources. I may also ask you to consider upgrading to Mid-Tier Patch 2. While they do not claim there to be any performance fixes on the Mid-Tier, since 7.5 is relatively new anyways, you might not have a lot to loose to go up to Patch 2 and see how that works, afterall if it gets worse you can always backout since its just like a client install and doesn't alter the database or anything. Another consideration would also be to step up to a later version of JRE/JDK 1.6.0_13 and am doing fairly well with these. Also check ur Network settings and make sure its set to full duplex mode. Turn on Cache persitency in the Mid-Tier configuration. It helps with the load of forms once the cache has been built, and preserves the cache if the tomcat server is brought down, unless the server crashes in which case I think it assumes the cache may have been bad and deletes it.. Joe ________________________________ From: "Kiran, Ravi" <[email protected]> To: [email protected] Sent: Tuesday, June 30, 2009 12:26:25 PM Subject: Re: Mid Tier running very slow ** For eg it would be nice if you could tell us what version of the ARS Server you are running and what version of the mid tier you are running down to the very last patch installed. ARS 7.5.00 Patch 001, Mid Tier 7.5.00 Patch 001 The versions and types of operating systems count too.. Windows Server 2003 R2 Enterprise Edition The versions of the web servers count as well. APACHE/TOMCAT 5.5.25 Version of JDK and JRE that the Mid-Tier is using. What are the browsers that the clients typically connect with. JRE,JDK 1.5._12, Internet Explorer 6 What web servelet are you running? where can i find this info ? It would be nice to see all of this before anyone could suggest anything. This has been discussed here several times before, and you must realize that most people out here on the list are busy with their projects, but still make time to answer and help the members of the list so it would be nice if you could take some time as well when you need help to provide that little bit of information upfront so we get a broader idea of the kind of problem you are facing. It doesn't help too much if you tell us you have a problem with your car that runs only a top speed of 80 mph if we do not know what car you are talking about.. Thanks for your reply with adequate example of car. Makes if more clear. Without all that I could just attempt one shot in the dark.. Have you cared to adjust your Java Heap Size?where should i look for this information. What should be the ideal heap size ? ________________________________ From: Action Request System discussion list(ARSList) [mailto:[email protected]] On Behalf Of Joe DeSouza Sent: Tuesday, June 30, 2009 10:15 AM To: [email protected] Subject: Re: Mid Tier running very slow ** Raj, Before anyone can even suggest anything there could be various factors that might be impacting your performance, so if you outline those, they might be very useful for people who have had similar experiences in the past to help you. For eg it would be nice if you could tell us what version of the ARS Server you are running and what version of the mid tier you are running down to the very last patch installed. The versions and types of operating systems count too.. The versions of the web servers count as well. Version of JDK and JRE that the Mid-Tier is using. What are the browsers that the clients typically connect with. What web servelet are you running? It would be nice to see all of this before anyone could suggest anything. This has been discussed here several times before, and you must realize that most people out here on the list are busy with their projects, but still make time to answer and help the members of the list so it would be nice if you could take some time as well when you need help to provide that little bit of information upfront so we get a broader idea of the kind of problem you are facing. It doesn't help too much if you tell us you have a problem with your car that runs only a top speed of 80 mph if we do not know what car you are talking about.. Without all that I could just attempt one shot in the dark.. Have you cared to adjust your Java Heap Size? Cheers Joe ________________________________ From: Raj <[email protected]> To: [email protected] Sent: Tuesday, June 30, 2009 11:47:21 AM Subject: Mid Tier running very slow Hello all, We have our mid tier on a virtual server. Last week, it was working fine and fast. But all of a sudden this week, it has become pretty slow. when i type in the url, then the mid tier login page loads but once i enter usename and password , it says loading userdata.js at the bottom of the page but the page never loads . Where should i look what is wrong with Mid Tier ? Although I did install mid tier on main test system as well, and it works fast and everthing seems fine. I looked in the mid tier logs by going into the webserver system , at the end of the log file it says Reaping Cache Groups. Please advice what should i do to make it work faster. regards, Raj _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org Platinum Sponsor:[email protected] ARSlist: "Where the Answers Are"
