Do you know if a request might be accessing the JSP page while another request is trying to compile the updated version? Also, I assume if it is "not found" through Apache, it is also "not found" accessing Tomcat directly?
Cheers, Larry > -----Original Message----- > From: David Bank [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, April 09, 2002 1:56 PM > To: [EMAIL PROTECTED] > Subject: Tomcat intermittent failures > > > Good morning, afternoon, evening, or whichever local > timeperiod you are > currently experiencing. I've just joined the list, seeking help on a > rather perplexing Tomcat problem we've been having. All > assistance will > be greatly appreciated. > > Our environment > Windows 2000 Server (sorry) with SP2 (we're moving to Linux, I > promise!) > Apache v1.3.23 > Tomcat v3.3a (running as a NT service) > Sun JDK 1.3.1_02 > > Our problem > Occasionally, especially after editing a JSP file or files, > Tomcat will > suddenly fail to find the .java and .class files that go with a > particular JSP. Looking in the "work" directory reveals that the files > exist, but when we attempt to access that particular JSP thru > Apache, we > get 404 - File Not Found. > > We have had some success in causing this problem to go away > by shutting > down the Apache and Tomcat services, deleting the appropriate > .java and > .class (and .ver) files, restarting the Tomcat and Apache > services, and > hitting Reload on the browser. Sometimes (about 50% of the > time) when we > do this, Tomcat suddenly "finds" the files and the JSP runs, new .java > and .class files are created, and we get the proper output. The > remaining 50% of the time, it falls to one of two > happenstances. Either > (30%) we do the shutdown-services-and-delete routine followed by a > reboot and the problem goes away, or (20%) we keep retrying > on different > clients until the problem suddenly vanishes. > > This problem is intermittent. Sometimes we'll get it with FOO.JSP but > not BAR.JSP. We'll then take a corrective action (described above) and > suddenly we'll get it with BAR.JSP but not FOO.JSP. Both JSP files are > very similar, and there's nothing exotic about our coding. > Sometimes the > problem goes away with some waiting. > > This happens with both IE and Netscape clients, and with clients on > different networks and behind different firewall/proxy > situations, so we > don't think that firewall, proxy or other network architecture issues > are contributing factors. This happens to clients on the same > LAN as the > servers. > > Needless to say, we're quite perplexed, and don't understand what is > going wrong. If anyone has any suggestions or recommendations, please > respond. > > David Bank > NC CATS Project Manager > Accountability Services - Testing > NC Department of Public Instruction > 301 Wilmington Street > Raleigh, NC 27601 > 919-807-3796 > > > -- > To unsubscribe: <mailto:[EMAIL PROTECTED]> > For additional commands: <mailto:[EMAIL PROTECTED]> > Troubles with the list: <mailto:[EMAIL PROTECTED]> > -- To unsubscribe: <mailto:[EMAIL PROTECTED]> For additional commands: <mailto:[EMAIL PROTECTED]> Troubles with the list: <mailto:[EMAIL PROTECTED]>
