Return ESLURM_NODES_BUSY rather than ESLURM_NODE_NOT_AVAIL error on job
submit when required nodes are up, but completing a job or in exclusive
job allocation.

previous 20 minute time limit.  The previous behavior would fail for
large files 20 minutes into the transfer.

If a user tries to to clear message that he does not own, return
access denied rather than not found error

Close the batch job's environment file when it contains no data to avoid
leaking file descriptors.

to operate the same way salloc or sbatch did and assign a task per cpu
by default instead of task per node.

correctly.  Before the errno wasn't being checked correctly

correctly as of IBM driver V1R1M1 efix 008.

configured correctly.

Move code to handle multiple clusters.  Previous code could have issues
where job_db_inx space could overlap.

current or in the past.

from Mark Nelson

Using the syscalls directly rather than calling bin/(u)mount via
system() avoids a few fork + exec calls, and provides better error
handling if something goes wrong.

Users of this functionality are also updated to use slurm_strerror in
order to provide a more informative error message.

The mount and umount syscalls are Linux-specific, but so are cgroups
so no portability is lost.

Using the syscalls directly rather than calling bin/(u)mount via
system() avoids a few fork + exec calls, and provides better error
handling if something goes wrong.

Users of this functionality are also updated to use slurm_strerror in
order to provide a more informative error message.

The mount and umount syscalls are Linux-specific, but so are cgroups
so no portability is lost.

Using the syscalls directly rather than calling bin/(u)mount via
system() avoids a few fork + exec calls, and provides better error
handling if something goes wrong.

Users of this functionality are also updated to use slurm_strerror in
order to provide a more informative error message.

The mount and umount syscalls are Linux-specific, but so are cgroups
so no portability is lost.

    the current plugin has been loaded when using runjob_mux_refresh_config

These comments were orphaned with this commit:  874f797f
Move the start time calculation of pending jobs into a separate pthread on Nov 3, 2010.

Correct parsing of srun/sbatch input/output/error file names so that only
the name "none" is mapped to /dev/null and not any file name starting
with "none" (e.g. "none.o"). This fixes bug #98.

Gres: If a gres has a count of one and an associated file then when doing
a reconfiguration, the node's bitmap was not cleared resulting in an
underflow upon job termination or removal from scheduling matrix by the
backfill scheduler.

Cray and BlueGene - Do not treat lack of usable front-end nodes when
slurmctld deamon starts as a fatal error. Also preserve correct front-end
node for jobs when there is more than one front-end node and the slurmctld
daemon restarts.