I have what looks like rogue caching jobs that won't cancel.
Clicking "Cancel Caching" in Cache Status doesn't work.
Cancelling Job in "Job Status" doesn't work.
Restarting ArcGIS service doesn't work.
Any ideas?
Can you go into the jobs directory (cachingtools_gpserver) and have deleting session?
EDIT: And now getting the following error when starting any new caching.
Could not service request. java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is: java.net.SocketException: Connection reset
Luckily, stopping the caching service has worked for me. Unfortunately I can't think of what would be causing your issue. If I remember correctly, 10.1 SP1 will add a job status window where we can see what jobs are currently running - hopefully it also offers an easier way to cancel jobs.
Interested to see if anyone else can offer up some advice.