Re: Tomcat Hogging CPU
John, I'm using 5.5.17. I'm actually not using it right now for the 15,000 visits per day site, though. I just develop these things and usually kick my clients off my server when their bandwidth gets too high. I remember lots of problems with 5.0 including race conditions like you've mentioned. I'm in the process of moving to 6.0, but am very cautious because 5.5 is so reliable. Omar [EMAIL PROTECTED] wrote: Omar: What version of Tomcat do you use? -- Original message -- From: Omar Eljumaily [EMAIL PROTECTED] What's your definition of a connection? Is it a session? I've had an average of about 300 active sessions which amounted to about 15,000 unique visits per day. This was on a machine with substantially less power than yours. We average 150 active connections per web server. What do others average? - 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]
Re: Tomcat Hogging CPU
Tomcat 5.0 Java 1.5 Thank you. -- Original message -- From: Leon Rosenberg [EMAIL PROTECTED] tomcat and java versions would help a lot :-) Leon On 5/31/07, [EMAIL PROTECTED] wrote: We have been experiencing a problem where Tomcat causes CPU usage to go to 100%. This slows down our web servers. Has anyone else ever experienced such a problem? We average 150 active connections per web server. What do others average? How do others configure initial memory pool, maximum memory pool and thread stack size (relative to RAM)? We have 2.0 GB of RAM and 2 2.60 GHz CPUs on Windows 2003. Thank you very much. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat Hogging CPU
which tomcat version exactly? tomcat 5.0.19 - 5.0.30 had a weird bug with session synchronization, if you have one of those versions try kill -QUIT tomcat (not sure how to perform the same under windows, maybe with jmap). and check the threaddump. One of your thread is consuming CPU, maybe in an infinite (or very long) loop, find out which one this is. Btw, does the 100% cpu goes down or do you have to restart the tomcat? regards Leon On 6/1/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Tomcat 5.0 Java 1.5 Thank you. -- Original message -- From: Leon Rosenberg [EMAIL PROTECTED] tomcat and java versions would help a lot :-) Leon On 5/31/07, [EMAIL PROTECTED] wrote: We have been experiencing a problem where Tomcat causes CPU usage to go to 100%. This slows down our web servers. Has anyone else ever experienced such a problem? We average 150 active connections per web server. What do others average? How do others configure initial memory pool, maximum memory pool and thread stack size (relative to RAM)? We have 2.0 GB of RAM and 2 2.60 GHz CPUs on Windows 2003. Thank you very much. - 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]
Re: Tomcat Hogging CPU
Omar: What version of Tomcat do you use? -- Original message -- From: Omar Eljumaily [EMAIL PROTECTED] What's your definition of a connection? Is it a session? I've had an average of about 300 active sessions which amounted to about 15,000 unique visits per day. This was on a machine with substantially less power than yours. We average 150 active connections per web server. What do others average? - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat Hogging CPU
We have been experiencing a problem where Tomcat causes CPU usage to go to 100%. This slows down our web servers. Has anyone else ever experienced such a problem? We average 150 active connections per web server. What do others average? How do others configure initial memory pool, maximum memory pool and thread stack size (relative to RAM)? We have 2.0 GB of RAM and 2 2.60 GHz CPUs on Windows 2003. Thank you very much.
RE: Tomcat Hogging CPU
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Subject: Tomcat Hogging CPU We have been experiencing a problem where Tomcat causes CPU usage to go to 100%. Odds are it's one of your webapps, not Tomcat. Try running a CPU profiler to see where time is being spent. You could also take thread dumps to find out where each thread is at a given point. - Chuc THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat Hogging CPU
What's your definition of a connection? Is it a session? I've had an average of about 300 active sessions which amounted to about 15,000 unique visits per day. This was on a machine with substantially less power than yours. We average 150 active connections per web server. What do others average? - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat Hogging CPU
tomcat and java versions would help a lot :-) Leon On 5/31/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: We have been experiencing a problem where Tomcat causes CPU usage to go to 100%. This slows down our web servers. Has anyone else ever experienced such a problem? We average 150 active connections per web server. What do others average? How do others configure initial memory pool, maximum memory pool and thread stack size (relative to RAM)? We have 2.0 GB of RAM and 2 2.60 GHz CPUs on Windows 2003. Thank you very much. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
