tomcat performance

server administration XI Server Discussion
1

All,

I have been trying to enhance the tomcat performance on BOXI3.1 set-up. Based on recommendations in the forums
i have set it up in Tomcat Configuration → Java as
Initial Memory Pool 1024
Maximum Memory pool 1024
Thread stack size 256

through the graphical interface. Now my machine has ample GB and i want to increase this. However the tomcat/VM does not start if i increase say Max memory pool to 2048 etc.
It just says “Unable to initiate virtual machine” in it’s logs.

Can some one provide me suggestions on how we can optimize tomact?

Thanks
tomcat.jpg

ramaks (BOB member since 2009-03-31)

2

How did you resolve the performance issue ? We are encountering the same issue and we are trying to see if we have to upgrade our windows to a 64bit o/s version.

thanks

srinivenkatesan (BOB member since 2009-06-25)

3

You can not increase tomcat Maximum Memory pool beyond 1024 MB. Limitation for maximum memory is 1024 MB(cinformed with BO support).

I also tried to increase memory to 2048 MB on UNIX environment and that time also tomcat was unable to restart.

To increase performance, you might need to do tomcat clustering. But BO doest not give support to tomcat clustering.

CMC clustering is also one of the option to increase performance.

Thanks,

Swapnil

swapnilrodge (BOB member since 2009-01-03)

4

Sorry, not CMC clustering. But it is CMS clustering.

swapnilrodge (BOB member since 2009-01-03)

5

Hi all,

thanks for your feedback. yeah it looks like 1024 MB is the max limit- i confirmed the same with BO support too.

ramaks (BOB member since 2009-03-31)