Hi, With one tomcat instance ( = 1 JVM) running 10 apps, if one causes the machine to crash for whatever reason (malicious code, infinite loop, OutOfMemoryError, etc.), the other 9 are hosed as well. Thus separation is frequently desirable.
Yoav Shapira Millennium Research Informatics >-----Original Message----- >From: Adam T. Gautier [mailto:[EMAIL PROTECTED] >Sent: Thursday, May 06, 2004 12:37 PM >To: Tomcat Users List >Subject: Load-Balancing > >I have a three server configuration with 1 Apache (httpd) and 2 Tomcat >(10 instances a piece) servers. The configuration is working but it is >a little complicated. I choose this configuration for performance. I >loaded the tomcat servers with lots of RAM and let the multiple instance >run as independant processes under linux. This would allow, I beleieve >for beter CPU usage. There were serveral other reasons for my original >choice of load balancing across multiple instances on multiple machines >which I won't go into unless asked. But, my question is this. Is it >needed? Can I get the same performance from single tomcat instances on >the two boxes (rely on threads instead of POSIX proccesses)? Wouldn't >running 1 JVM instead of 10 provide a better use of memory per machine? >The configuration would be easier, definatly... What are the thought of >the others in this group? Thanks... > > > [ Apache 10.10.10.20] > | > | > |------------------------------------------------| >[Tomcat 10.10.10.100] [Tomcat 10.10.10.101] > | | > [APP01-01] [APP02-01] > ... ... > [APP01-10] [APP02-10] > > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
