We've had our production intranet running on CFMX 6.1
(6,1,0,hf53852_61) for about 3 years now. In the last few weeks,
we've been noticing a higher incidence of spontaneous restarts of
the CF service (maybe 3-4 times per week), but there's no
indication in the JRUN or CF logs of why the service is restarting.
We use SeeFusion to monitor JVM memory usage and active requests,
and memory is never an issue at the time of the restarts, and there
are no "chunky" jobs running at the time either.
Are there any other known reasons for the CFMX service to
restart itself, or any place else I should be looking for clues? My
only response to my boss right now is that I hope when we upgrade
to CF8 this year, the problem will go away (and be replaced by a
Ahmed_El-Rasheedy, Oct 18, 2007 7:39 AM
Try increasing your MaxPermSize from MaxPermSize=128 to
MaxPermSize=256. This is a JVM argument in the JVM.Config file. It
is the memory utilized by JRun for its own processes.
If you are on a windows system and have enough physical
memory then the total memory that can be used for both the MaxHeap
and MaxPermSize(-xmx512m + MaxPermSize=256) cannot be more than
1500m. If it is more than that the CF server will not start. Also
changing this setting will require a CF server restart.
You can also try upgrading you JVM to the latest on Sun's
site (last time I checked a few months ago it was 1.4.2_12).
The above worked for CFMX 7 not 6 but I am thinking that the
issue is the same.
CF8 is using the JVMs 1.5 and 1.6 so I think the restart
issues are resolved since in the past they were blamed on the JVM.