The percentage of available address space currently in use by the server process.
 
Causes
An application on this server or another server to which this server proxies messages is too busy and is unable to process user requests in timely fashion.
 
Resolutions
This might be a temporary condition. If the problem persists, please ensure that hardware and software requirements for this server and servers it proxies messages to as well as network bandwidth allocation for inter-server traffic meet the user usage characteristics.