You are right! If I close this IE window(doesn't have to be all of them) and open another one, Tomcat will respond. After that, I go to my application and do a few clicks, the dropdown lists won't refresh still and then if I go back to tomcat page, it will not respond also.
So how can I fix this Ajax problem? Where can I make sure that it only uses one connection? I inherited these two pages from somebody else and don't have any experience with Ajax. Any help would be highly appreciated. Jennifer -----Original Message----- From: David Smith [mailto:[EMAIL PROTECTED] Sent: Thursday, September 20, 2007 5:27 PM To: Tomcat Users List Subject: Re: Problem with Tomcat hangs for no obvious reason I'm wondering if the Ajax is consuming the two or so connections your browser allows so all other calls to the server get blocked. If you close all your browser windows and re-launch IE, does tomcat start responding again? If so, tomcat isn't hanging -- it's a javascript issue with your client. --David Mingus, Jennifer (JC) wrote: > Hi, > > I have tomcat 5.5.23 installed on Red Hat Enterprise Linux 5 and a simple web application using JSF/AJAX. The web application only has two pages. In the first page, it has a few dropdown lists, which get the options from a SQL server database. The last dropdown list is refreshed when selections on the others changed. There are two buttons: reset and ok. Click reset to reset all dropdownlist. And when the user click ok, it goes to the next page to confirm the choices the user made. Then after click on a button on the second page, the code will simply write a text file to the server. > > The problem I'm having is that after a few submissions, the last dropdown list won't refresh. Then no clicks will get a response. And I can even not go to the manager page. Tomcat just hangs. And there is no error printed out at catalina.out or localhost.log. I've checked and made sure that all connections to the database is closed. I found on google that if tomcat is installed on Redhat 9, you need to put export LD_ASSUME_KERNEL=2.4.1 to catalina.sh. But I'm using Red hat Enterprise linux 5. However, I tried it anyway and it didn't work. One thing I noticed when I start up tomcat is that I always get "The Apache Tomcat Native library which allows optional performance in production environments was not found on the java.library.path". Should I install the library? I didn't think it'll cause Tomcat to hang though. > > So, my question is whether this is caused by tomcat installation and configuration on the environment or it is caused by the JSF implementation. Will some code in JSF cause tomcat to hang? I would think if it's a bug in the web application, it will just cause the application not working, not tomcat to be not responsive at all. How can I find out the reason and how can I fix it? I'm new with JSF also. I inherited these couple pages from somebody else. > > Any suggestions will be greatly appreciated. > > Thanks, > Jennifer > > > --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
