Upgraded from Weblogic 9.1 to 9.2.3 and JRockit hangs and freezes

[JAYROO5245]

This last weekend 3-28 to 3-30, we upgraded our Hardware to all be on virtual servers. Each of our environments has a single Admin server and a clustered A and B server on three different virtual boxes. Before our upgrade, we had the admin and managed a on the same physical server and managed b on its own physical server. We also, upgraded our weblogic versions from 9.1 to 9.2.3 and we are using JRockit version jrockit_150_12 in the new environment and jrockit90_150_0 4 in the old one. When we open our application and have multiple users in our environment one of the managed servers freezes and produces no log output or stack traces. When we connect with jconsole we just stop getting output back, we do not even get a stack trace.

Old Environment:
JRockit version: jrockit90_150_0 4
Weblogic version: 9.1

New Virtual Environment:
JRockit version: jrockit_150_12
Weblogic version: 9.2.3

Basically what happens when the issue occurs is that either Managed A or B will just freeze and be in an infinite loop and be in a "Failed not restartable state". We have to resume then stop then start again in the weblogic console to get the server back up. Oh one other thing we noticed, when i rdp into the affected managed server, and open the taskmgr, the java process is eating up 99 - 100% of our cpu.

Any ideas what is going on and how to fix it?

THANKS!!

Jared Sheehan
jsheehan@caci.c om

[JosAH]

There are too many degrees of freedom: a new Weblogic version, a new JRockit version and the entire shebang is virtualized. Can you roll back to the old situation and change your stuff one by one and check where it goes wrong?

kind regards,

Jos

[JAYROO5245]

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