Here are some configuration details: Server: Linux CentOS Linux version 2.6.18-8.1.14.el5PAE (mockbu...@builder7.centos.org) (gcc version 4.1.1 20070105 (Red Hat 4.1.1-52)) Server version: Apache Tomcat/5.5.23 Server built: Mar 5 2007 08:25:04 Server number: 5.5.23.0 OS Name: Linux OS Version: 2.6.18-8.1.14.el5PAE JVM Version: 1.5.0_12-b04 JVM Vendor: Sun Microsystems Inc.
Apache serves as main web server in front of tomcat, apache is communicating with tomcat via AJP protocol. Tomcat process running with the following command: /usr/java/jdk/bin/java -Xms1024m -Xmx2048m -Djava.awt.headless=true -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.endorsed.dirs=/usr/local/tomcat/common/endorsed -classpath :/usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/commons-logging-api.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start Bugzilla from gsex...@mhsoftware.com wrote: > > Your description is pretty short of information. It's unlikely you will > get any useful comments. If you would like help, you'll have to provide > more information. > > Which version of 5.5? > > What JVM? > > What Operating System? If Linux, what Kernel? If Windows, what version > and Service Packs? > > What command line arguments are you using for the JVM? > > kegliuz wrote: >> Hello guys, >> >> We are running a Tomcat 5.5 version through proxy_ajp mode via a regular >> Apache webserver. >> >> Within last 2 weeks we had 2 strange downtimes of our system. Our >> application is running on Tomcat 5.5. >> >> ************ >> 1 CASE >> >> One morning I woke up and noticed our website is down. I logged into the >> server and checked for running processes. >> The servers load was around 4% (while normally it's around 1%). I checked >> Tomcat and it was still running, however, the webserver did not respond >> to >> any queries. The browser was unable to load our website. >> >> So I tried to restart Tomcat: >> 1) to stop the service >> and then >> 2) start it. >> >> When I ran a command: service tomcat stop - the Tomcat tried to shut >> down. >> However it stopped responding... No status on command line, nothing. It >> looked like the server halted. So I had to re-login to the server once >> again >> and then again to run the same command to stop tomcat. >> >> Tomcat started to respond only the 2nd time and it stopped. >> >> Then I ran a command to start tomcat: service tomcat start >> Tomcat did not start for the first time. Well, it started, however, it >> did >> not respond. >> So I had to stop it once again and then ran a start command once again to >> get it up and running. >> This time Tomcat started successfully and the application started to >> work. >> >> >> However, the question is: who caused the problem with Tomcat not >> responding? >> It did not crash, however, the web server was no functioning and unable >> to >> process requests. >> >> I checked our ping software's logs to see for a downtime and noticed that >> downtime started to appear something like this: >> >> 5 minute intervals >> down... >> down... >> OK! >> OK! >> down... >> OK! >> down... >> down... >> down... >> down... >> down... >> until i finally restarted the server. >> >> Tomcat did not fully crashed, however, it was not serving the requests. >> ************* >> 2 CASE >> ************* >> >> This week I woke up again in the morning and I noticed that Tomcat is >> serving everything really slow... It was taking 2 minutes or so to load >> the >> website, however, this time it was serving (at least!). >> >> I went to restart Tomcat and application this time again and got the same >> issues as described in CASE 1. Not responding, etc. >> I had to stop tomcat, relogin, stop it again, then start it, stop it and >> finally start it again and it started working. >> >> >> So my question: what should we do in order to find a reason what's >> causing >> these Tomcat's downtimes? How to prevent them? >> We tried checking all tomcats logs, etc. but did not find any real >> problems. >> >> Please, help us to identify the problems so we could fix it... Any >> suggestions? >> >> Thank you in advance! >> >> Sincerely, >> Keglius > > -- > George Sexton > MH Software, Inc. > Voice: +1 303 438 9585 > URL: http://www.mhsoftware.com/ > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > -- View this message in context: http://www.nabble.com/Tomcat-is-not-serving-requests---but-not-crashed...-tp22990181p23001710.html Sent from the Tomcat - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
