An LSF upgrade is in progress. See
On Monday, 29 Oct, CERN will migrate the batch system from the current version 6.1 of LSF to 7.0 and new master node hardware. The main benefit will be better scalability.
The intervention will start at 8:00 am and is scheduled until 11:00.
During that period short service interruptions will be likely, and job submission and scheduling will be disabled for about one hour.
for a list of the most important changes.
Please note that after the migration the bpeek command will not work properly on individual worker nodes, until old jobs have finished and LSF has been restarted on them.