I can confirm what Deepak said. I ran into this problem as well. As a reference, I am running CUIC 10.5(1).
Let me preface this by saying, that I would work through the TAC, since you need to get into the guts of CUOS to fix the issue (root access).
Our action plan:
Restart CUIC service. If symptoms persist, restart CUIC server. Or:
1. Gain root access to the system (requires TAC on WebEx)
2. Edit the /opt/cisco/cuic/cuicsrvr/webapps/cuic/WEB-INF/classes/oscache.properties file.
3. Add the following line after the line that starts with "cache.event.listeners":
cache.capacity=300000
4. Restart the CUIC service (about 2-5 minutes where the web interface and reports will
not be available to end users).
I was still having memory issues and after review there was an ES1 COP for the version I was running. It addressed two issues which were memory related:
CSCup39743<>: CUIC - Schedules configured with SFTP causing OutOfMemory errors at time
CSCuq83060<>: CUIC Stuck no response to http requests
After installing this COP file, I didn't run into the 90% memory utilization.
There was one more option that I was given, and that was to disable the LiveData feature. That utilizes up to 30% Virtual memory according to the TAC engineer I was working with. If you're not using LiveData, turn it off. I don't know why it's on by default. Again, TAC will need root access to fix the problem.
Good Luck.
