configure an access logging valve for your application also configure application logging for the app.
the docs are pretty clear on how to do this. is tomcat serving the images? David Delbecq wrote: > Hi bob > > There are several ways to try to find where this comes from > > 0) Check in the tomcat manager the status of memory. You may be running > out of java memory and so the garbage collector is running like crazy. > > 1) When issue arise, go to an AIX console (the timer is ticking, you > have 60 seconds according to your message) and send a SIGQUIT to the > java vm. You will get a complete thread dump of you javaprocess inside > catalina.out > > 2) run the webapp inside a tomcat itself running inside eclipse (there > are several eclipse plugin to do so), when this arise, suspend the java > process and analyse the Thread > > 3) If all else fail, play with a profiler, maybe you will get useful > infos from it > > Search for dead lock and / or memory leaks > > Also, nothing noticeable in catalina.out? > > Bob Wyatt wrote: >> Sorry, but this is re-request. My original request didn't elicit any >> replies, so I thought I'd try again. >> >> >> >> Our web application has a search feature that can be activated by >> pressing >> the F2 key in Internet Explorer, or by clicking a small (978 bytes) gif >> image file of a magnifying glass in our myapp/images directory. >> >> This directory is populated with 45 gif image files, the largest being >> 144 >> KB, the smallest being 69 bytes, and the median being about 8 KB. >> >> >> >> Occasionally, this search icon does not display; I'll get a black box for >> several (10 - 15) seconds, then the image 'paints' in small spurts. >> >> Even rarer are cases where we will click upon an action that should >> bring up >> a new page, but after 60 seconds or so, we get the dreaded 'Page Not >> Found' >> (PNF) message. >> >> Whenever we get it, we have to disconnect and reconnect to the webapp; >> we do >> not reboot the PC but must close Internet Explorer. >> >> . >> >> It seems that the faster the operator is, the more frequently the image >> issue arises; about 3 times a day. The PNF occurs about twice a week. >> >> There are no more than 6 users running the webapp when these all >> occur; this >> is occurring on a development system. >> >> >> >> Are there any diagnostic or logging activities in Tomcat that I can >> enable >> to try to catch the culprit? >> >> It does not appear to be a networking issue, as other connections to >> other >> systems or the internet appear unaffected. >> >> >> >> This is Tomcat 5.0.28 on AIX 5.2. >> >> >> >> Regards, >> >> >> >> Bob >> >> >> > > > --------------------------------------------------------------------- > 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]
