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

- 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

and avoid race condition calling task before proctrack can introduce.

Bug 5319

delayed until the first job completes execution and it's burst buffer
stage-out is completed.

Bug 4675

If MailProg is not configured and "/bin/mail" (the default) does
not exist, but "/usr/bin/mail" does exist then use "/usr/bin/mail"
as a default value.

Bug 5159.

Previously the function was only testing against the first partition in
the job_record. Now it detects if the job request is multi partition and
if so then loops through all of them until the job will run in any or
until the end of the list, returning the error code from the last one if
the job won't run in any partition.

Bug 5185

When requesting specific jobids with sacct, the starttime of the request
is 0, which will cause the time range to be outside of the
MaxQueryTimeRange range -- if specified. When requesting specific
jobids, sacct should be able to find the job whenever it started --
unless confined to a smaller range with -S and/or -E.

Bug 5009

For heterogeneous job component with required nodes, explicitly exclude
    those nodes from all other job components.

Specifically due to SELECT ... FOR UPDATE ones.

Bug 5086.

Bug 5270.

Instead of unintentionally rejecting the update from a non-Administrator
if the job_submit plugin modified that field.

Bug 5306.

sched/backfill: Reset job time limit if needed for deadline scheduling.
bug 5183

I do not see a use for this syntax, especially given that it appends
an extra comma in between the two halves. Only allow the full string
to change to put this in line with the Comment handling.

Remove special handling of an identical AdminComment as well,
since the end result is unchanged, and this avoids a potentially
expensive xstrcmp call.

Bug 5306.

Bug 5286

RHEL 6 (and related) use lua as the package name, test
if that package exists with a version >= 5.1 if the other
tests have already failed.

Bug 5263.

bug 4987

And do not list each individual sensor reading but just the computed
sum of each one grouped by key.

Bug5274

This is in anticipation of an upcoming change to the cgroup hierarchy
on a future CLE release.

Bug 5145.

If defined, is called when a node failes to resume by ResumeTimeout.

if any task in the array was requeued. This is a hint to use
"sacct --duplicates" to see the whole picture of the array job.

Bug 5105

burst_buffer.conf - Add SetExecHost flag to enable burst buffer access
    from the login node for interactive jobs.

And remove the initialization before all the calls to the function.

It is non-functional and the motivation is more a preventive thing
so that if we ever use slurm_mktime() we know tm_isdst is consistently
set to -1.

Bug 5230.

which were marked down due to ResumeTimeout.

If a cloud node was marked down due to not responding by ResumeTimeout,
the code inadvertently added the node back to the avail_node_bitmap --
after being cleared by set_node_down_ptr(). The scheduler would then
attempt to allocate the node again, which would cause a loop of hitting
ResumeTimeout and allocating the downed node again.

Bug 5264