flag the required state saves. Perform the saves using synchronous I/O
from just one thread. Under heavy loads this results in much faster
responsiveness and lowers slurmctld's memory and CPU overhead considerably.

 o also show node state when -l is used with -R
 o Don't let environment var override command line (SINFO_FORMAT)

  of reasons and nodes with those reasons.

right away and treat failure as a fatal error.

write to.

    slurmctld startup
Create StateSaveLocation directory if changes via slurmctld reconfig

Properly support sinfo --state option value including "*" suffix.

  (which exhaust available memory).
Restructure slurmctld agent logic for higher throughput.

Fixes problem running very large number of simultaneous jobs when
their inactivity limit was reached due to a backlog of message.

data structure. This eliminates risks associated with re-reading slurm.conf.

   invalid or expired job.

as needed. This is important when values are reset on SIGHUP.

(gnats:381)

to relinquish control. This is necessary since a temporary network problem
can result in the BackupController becoming the primary server even while
the server on the ControllerMachine continues execution. While this event
is impossible to prevent, the new code restores proper operation when
communications are restored.
(gnats:387)

   expiration. (Also added at least one fix to the code)

state recovery.