inside a jsp class references have to be qualified e.g. ArrayList becomes java.util.ArrayList
dont be afraid to jump into %CATALINA_HOME%/work/Catalina/%hostname%/WebApp/org/apache/jsp folder .. find the jsp and compile it manually from command line javac index_jsp.java Martin Gainty ______________________________________________ please do not alter/modify or disrupt this transmission.. Thank You > Date: Wed, 10 Feb 2010 12:11:41 -0800 > From: jor...@viviotech.net > To: users@tomcat.apache.org > Subject: Re: JSP Page "hangs"... clues? > > Hey Joseph, > > Honestly I'm not sure about the code. We didn't write the code for it > and I haven't dug around in that part of it because the first few > requests seem to go through without a hitch. > > We doubled the Xmx value from 512 to 1024 and added the MaxPermSize so > I've been going under the impression that if those were part of the > problem that I should be able to pull at least a few more hits out of > the page, right? > > Warm regards, > Jordan Michaels > Vivio Technologies > http://www.viviotech.net/ > Open BlueDragon Steering Committee > Railo Community Distributions > > > Joseph Morgan wrote: > > Jordan, > > > > It sounds to me like a memory issue as well, but you should see an > > OutOfMemory error in the logs, or so I would think. > > > > Is the page (or the actions within it) caching anything in the context > > or session? > > > > Joe > > > > -----Original Message----- > > From: Jordan Michaels [mailto:jor...@viviotech.net] > > Sent: Wednesday, February 10, 2010 1:53 PM > > To: users@tomcat.apache.org > > Subject: JSP Page "hangs"... clues? > > > > We have an interesting situation and I'm wondering if anyone has any > > ideas on where we could look for possible solutions. > > > > We have a JSP page that performs a large mysql query of product titles > > (just the names). The list is then spit out on the page with drill-down > > links. Pretty simple really. The problem is that just after a tomcat > > restart, the first and occasionally the second and third requests will > > process all the way just fine, but most subsequent requests will "hang" > > on a random record. Occasionally one will go all the way through, but > > most will hang. > > > > Let me clarify, we restart tomcat, hit the page, and the page loads > > fine. We hit refresh once or twice, and the page will fail to load > > fully. The page will hang after a random product title and just stop > > responding. You can click on any other page on the site, but this one > > page with the large product listing query hangs in random spots. > > > > We've studied this intently. The server this is running on is a CentOS > > 4, 32-bit box with 1.5 GB RAM, Apache 2, and mod_jk. > > > > Our first thought was memory issues. We increased Tomcat's memory using > > the setenv.sh file, which now contains the following line: > > > > JAVA_OPTS="-Xms128m -Xmx1024m -Xss256m -XX:MaxPermSize=256m "; export > > JAVA_OPTS > > > > We've verified that the settings are in place by using the "ps ax" > > command and making sure the java process includes the updated settings. > > Unfortunately, this seems to have no effect at all. > > > > We then reviewed the logs: catalina.out, mod_jk.log, and apache's > > error_log, among others. We monitored these logs using "tail" so we > > could see if any errors were thrown as we hit the page. No errors were > > thrown if the request went through good or it failed. The logs were > > completely quiet. > > > > We've updated Tomcat, mod_jk, the JVM, and the MySQL driver to the > > absolute latest versions available as of this writing. > > > > Does anyone have any clues as to where we might look for what is > > happening to make this one page hang? It still feels like a memory > > issue, but with nothing in the logs and no indicators other then the > > problem itself, we'd appreciate any suggestions on what to look for at > > this point. > > > > Thank you in advance! > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > _________________________________________________________________ Hotmail: Trusted email with Microsoft’s powerful SPAM protection. http://clk.atdmt.com/GBL/go/201469226/direct/01/
