Previously only a single task of a job array could preempt during
backfill scheduling. This allows multiple tasks to preempt and have
resources reserved in backfill.

Bug 5405.

The getopt format string needs to handle an option here,
and the --help output had not been corrected after 99b2c4e8.

Bug 5522.

for displaying unformtted timelimit numbers.

Bug 5407

Bug 5094

to dictate what state of node is after reboot.

Bug 5070

Bug 5468

This is a backport of commit cefc9ec1.

Bug 4918

scheduling cycle.  Primarily caused by EnforcePartLimits=ALL.

Bug 5452

Bug 5248.

Without Delegate=yes, systemd will "fix" the cgroup hierarchies whenever
'systemctl daemon-reload' is called, which will then remove any
restrictions placed on memory or device access for a given job.

This is a problem especially since 'systemctl daemon-reload' may be called
automatically by rpm/yum or a variety of config file mangers, leading to
jobs escaping from slurmd/slurmstepd's control.

This setting should work for systemd versions >= 205.
https://www.freedesktop.org/wiki/Software/systemd/ControlGroupInterface/

Bug 5292.

When a job with time_end=0 and TRES null exists from an association that is
currently inside a reservation, the hourly rollup segfaults.

Bug 5143

As reported by Avalon Johnson on slurm-users
https://groups.google.com/forum/#!topic/slurm-users/BsMQ7Uk1PLw
Bug 5287.

srun was already fixed in b7053bda (Bug 3294).

Bug 5126

Add salloc/sbatch/srun option of --gres-flags=disable-binding to disable
    filtering of CPUs with respect to generic resource locality. This option is
    currently required to use more CPUs than are bound to a GRES (i.e. if a GPU
    is bound to the CPUs on one socket, but resources on more than one socket
    are required to run the job). This option may permit a job to be allocated
    resources sooner than otherwise possible, but may result in lower job
    performance.
bug 5189

When printing arrays in squeue and setting the SLURM_BITSTR_LEN variable to 0
or to NULL, the length of the output defaulted to 64, when the documentation
says it will default to "unlimited". This patch fixes this situation.

Bug 5440

Documented, and code reads as needing, the node lock. But these
were incorrectly set as the job locks.

Bug 5394.

Needs the job write lock, as it may change job status not just node
status. Especially after commit 33e352a6.

Bug 5406.

Previously, slashes '\' in job->cwd were always expanded regardless of they
were part of the name of a directory or not.

Bug 4859

When dealing with special characters like %A, %u, %s and so on and escaping it
on the command line, problems arises when one have directories with multiple
slashes in their names. This patch fixes this situation removing only one
slash on each pair of slashes just as normal escaping works i.e. in bash.

Bug 4859

Add errno to info message in the SlurmDBD log, and pass the actual
errno back to the sacctmgr process so the user can see it.

Bug 5152.

- avoid `abort()` when collective is failed
- added logging of coll details for fail cases

Bug 5067

Note, this is setting it up so we can use defunct functions.  It will
probably need to be properly fixed in a future version so we don't
do this.

with preemption or when job requests a specific list of hosts.

Bug 5293.

Continuation of 923c9b37.

There is a delay in the cgroup system when moving a PID from one cgroup
to another. It is usually short, but if we don't wait for the PID to
move before removing cgroup directories the PID previously belonged to,
we could leak cgroups. This was previously fixed in the cpuset and
devices subsystems. This uses the same logic to fix the freezer
subsystem.

Bug 5082.

the database.

Bug 5247

So that multiple nodes changes will be reported on one line rather than one
line per node. Otherwise this could lead to performance issues when reloading
slurmctld in big systems.

Bug4980

Cleaned up code that could've caused performance issues when reading config
and there was nodes with features defined.

bug4980

bug 5337

Currently, no caller checks the return code.

Bug 5164

Some job fields can change in the course of scheduling. This patch
reinitializes previously adjusted job fields to their original value
when validating the job memory in multi-partition requests.

Bug 4895.

This reverts commit bf4cb0b1.

Bug 5240, Bug 4895 and Bug 4976.

When one asks for an inactive feature and also specifies the node with -w flag,
the node will be rebooted despite it may contain running jobs.

bug4821