I am working on an environment where the OnCommand 5.0.1 server also has System Manager 2.x, SMOSS, and SnapDrive. I know this is not recommended, but I need to identify what the conflict is before the decision can be made to move an application to another server.
I've determined that something is modifying the Java settings or holding all resources so that the webui service cannot be started.
The only workaround I've found is to reinstall Java, reboot and then the webui and http services of OnCommand Core will start. The problem occurs if the OnCommand services are stopped, and then webui/http cannot be restarted. I've tried modifying the maxheapsize, anywhere from 768-3078, with no success.
Any ideas what could be modifying the Java settings or consuming all available heap memory? The server has around 3GB of free physical memory (8GB total) at the time of restarting webui/http, so the heap size should not be an issue.
Java version was 6U20 32-bit, uninstalled and re-installed Java 7U3 64-bit. Issue still occured, requiring Java 7 to be re-installed and server rebooted before webui and http would start.