The qrerun command directs that the specified jobs are to be rerun if possible. To rerun a job is to terminate the session leader of the job and return the job to the queued state in the execution queue in which the job currently resides.
If a job is marked as not rerunable then the rerun request will fail for that job. If the mini-server running the job is down, or it rejects the request, the Rerun Job batch request will return a failure unless -f is used.
Using -f violates IEEE Batch Processing Services Std and should be handled with great care. It should only be used under exceptional circumstances. Best practice is to fix the problem mini-server host and let qrerun run normally. The nodes may need manual cleaning. See the -r option on the qsub and qalter commands.
