Added flag to slurmdbd.conf TrackSlurmctldDown where if set will mark idle resources as down on a cluster when a slurmctld disconnects or is no longer reachable.

Added that when a slurmctld closes the connection to the database it's registered host and port are removed.

BLUEGENE - Speedup by skipping blocks that are deallocating for other jobs when starting overlapping jobs in dynamic mode.

BLUEGENE - Fix for issue in dynamic mode when trying to create a block overlapping a block with no job running on it but in configuring state.

    from Mark Grondona, LLNL.

    releases allocation on real-time signals. Patch from Gerrit Renker, CSCS.

Fix for sacctmgr to work correctly when modifying user associations where all the associations contain a partition.

    job allocation is revoked. Patch from Gerrit Renker, CSCS.

    an integer number of minutes to "[days-]hours:minutes:seconds".

    rather than cnode count in scontrol output for NodeCnt field).

    than using "ALL".

    after the job allocation will properly release the allocation and cause
    salloc to exit.

Normalized the way pidfile are created by the slurm daemons.  With extra documentation for better understanding of when to call the create_pidfile function.

    sbatch, and srun commands to work properly with a suffix of "MB", "GB",
    etc. and not only with a single letter (e.g. "M", "G", etc.).

    allocations created using srun (not just sbatch).

    that user ID. Patch from Hongjia Cao, NUDT.

    backfill scheduling while a job is completing. Patch from Gerrit Renker,
    CSCS.

Fix issue with associations attached to a specific partition with no other association, and requesting a different partition.

Fixed issue where assoc_mgr cache wasn't always loaded correctly if the slurmdbd wasn't running when the slurmctld was started.

Fixed issue where if a system has unset messages to the dbd in 2.1 and upgrades to 2.2.  Messages are now processed correctly now.