JVM reach 100% CPU Usage, thread/core dump

[alejandro martinez_1]

Hi,

I am running a WebMethods Server 3.5.1 in the environment below. A couple of days ago it just reached CPU usage 100% and hanged or core dumped, later on I was told had happened before. It did this 4-5 times we bring it up it went down a few mins later.
There was a EMC sofware update for the Disk Array the day of the problem, that was not the case the previous time.

Any ideas what the cause of this could be?
Which log could I take a look, things to try?

BTW, Yes I need to update my JVM and no, no error messages in the application log.



Environment
<>java -version
java version "1.2.2.02"
HotSpot VM (1.0.1fcs, mixed mode, PA2.0 build 1.2.2.02-99/12/09-PA_RISC2.0)
<>uname -a
HP-UX rtpdbvl1 B.11.00 A 9000/800 651329333 two-user license

Error message
#
# Java version:
# HotSpot VM (1.0.1fcs, mixed mode, PA2.0 build 1.2.2.02-99/12/09-PA_RISC2.0)
#
# HotSpot Virtual Machine Error, Unexpected Signal 10
#
# Error ID: 4F533F48500D55580E4350500B22
#
Full thread dump:

"User Tasks Pool" prio=9 tid=0x8f6ba0 nid=0x32 waiting on monitor [0x5ab43000..0x5ab434e0]
at java.lang.Object.wait(Native Method)
at java.lang.Object.wait(Object.java:424)
at com.wm.util.pool.PooledThread.run(PooledThread.java:101)
at java.lang.Thread.run(Thread.java:479)
...
...
...

[Steven E. Protter]

The most likely cause of this problem is inadequate patching for the HotSpot Server.

check patches and install at:

http://www.hp.com/go/java

Then reinstall the Hot Spot Server.

SEP

[Colin Topliss]

I'd lay odds on patching. Thats an old version of Java you have there. I'm pretty sure that there is a pthread specific patch out there related to problems with Java (certainly for 3.1 onwards).

Sorry - don't have the patch number to hand (saw it in some documents, but as we are on 11.11 not 11.0 I never made a note).