Disabling Studio database caching

Database caching provides better network efficiency for most clusters, but can in some cases cause issues in Studio.

You will likely want to disable database caching if you installed Studio on multiple nodes and either of the following is true:

Your network or host environment doesn't support multicast UDP traffic. This is sometimes true of VM environments.
Your Studio nodes are on separate LANs that don't use multicast routing.

To disable database caching for Studio:

Open $DOMAIN_HOME/bin/setUserOverrides.sh on each Studio node and add the following argument to JAVA_OPTIONS, before the final quotation mark:
```
-Dnet.sf.ehcache.disabled=true
```
Restart each Studio node.