nate.tade@gmail.com wrote:
> I help to administer about 40 AIX boxen, about 5 of these are oracle
> application servers (9i r1, aix 4.3.3 & 5.2r4). We are currently
> rebooting these machines nightly because java does not let go of
memory
> correctly and will bog the box down(thats what I have been told
> anyways.) Has anyone else experienced this type of problem and found
a
> work around to free up memory that has been snatched up by
java/oracle
> app server but is not being used.
>
> This gets really silly when our testers ask to have the stress-test
> server rebooted before they run a stress-test... The poor box (p650
aix
> 5.2r4) ends up being rebooted multiple times a day which just seems
so
> wrong with AIX!?!?


I have a server just like the one you describe, running AIX 4.3.3ML11
with Oracle 9i, Oracle App sever and Java 1.1.8.8

We have other Power 4+ AIX boxes running Oracle 9i at AIX 5.2ML4, and
some p5 systems at AIX 5.3ML1 with Oracle 10g.

None of them have memory problems, or need re-booting. I suspect you
have a memory leak in one of your Java applications using the Oracle
App server.

I would install NMON on the servers, select the "T" option for "Top
Processes", then select the "4" option, which will sort processes in
decending order by size.

This will help identify the app with the memory leak.
Make sure you are current on Oracle service for your release, also.

We only boot AIX after ML updates... etc