Uninitialized variable caused skipping fix-rrd
When upgrading a Frontend is necessary to run 'reconfig --fix-rrd' if something changed in the monitoring (e.g. in 3.2.20).
When this is skipped some values are not available in the RRD DB.
This was triggering a crash due to an incorrect try block.
[2018-01-10 14:56:02,932] ERROR: glideinFrontend:579: Exception occurred trying to spawn: Traceback (most recent call last): File "/usr/sbin/glideinFrontend", line 566, in main restart_interval, restart_attempts) File "/usr/sbin/glideinFrontend", line 355, in spawn restart_attempts, "run") File "/usr/sbin/glideinFrontend", line 205, in spawn_iteration fm_classad.setIdleJobCount(idle_jobs) UnboundLocalError: local variable 'idle_jobs' referenced before assignment