Tomcat server shutsdown very often

[pattar]

Hello,

We are running Apache/Tomcat/Mysql on linux. The site was working fine
till a few days back. When we introduced a few services, the tomcat
server hangs very often. Then we have to restart it using startup.sh.

Sometimes it shutsdown. Any idea why. Before we had faced a similar
problem with mysql & then we increased the max limit to 10000 users.

Is there a similar problem with Tomcat. One other thing we did was turn
off keep alives. Now the Tomcat does not shutdown but the jsp pages are
very slow. The htm pages are ok.

Kindly guide.

Thanks & Regards,
Srinivasan.