Tomcat manager takes forever to load after hard restart

Tomcat will randomly decide to take forever retrieving URLs that would normally occur instantaneously. When this happens I run a shutdown.sh, find and kill the tomcat process that is still running after shutdown for some reason, then startup.sh it back up. Accessing manager/html takes many minutes after such a reset. It shouldn't be taking this long.

Has anyone else run into this problem?

Thanks!

jd wong wrote:
Has anyone else run into this problem?

No. Does your machine have enough RAM? Does the disk light stop blinking and remain solidly on?

It's a server, it is still running. It is only tomcat that freezes. What I do is cntrl+C it, then follow those steps i mentioned above. My machine has over 32G of ram, and tomcat usually runs fast on it. Could it be that running a hard restart (of tomcat not the machine) causes it to startup slower?

Cheers!

Unless either your hardware or Tomcat are damaged, Tomcat alone, or Tomcat + admin webapps typically starts up in under 10 seconds. You should be able to track the startup process in the stdout (catalina.out) file. You can try clearing out the TOMCAT_HOME/temp and TOMCAT_HOME/work directories to get rid of possibly-stale files before starting. I always do that when deploying a new version of a webapp.

On the other hand, one particularly ill-written app I once inherited took over 30 minutes to "start up Tomcat" because the fool that designed it attempted to load entire database tables into RAM on startup - in the servlet init methods.