Bug 6711.

Regression from aca37654

.

Bug 6826.

Co-authored-by: Chad Vizino <chad@schedmd.com>

Overrides any setting for SLURM_EXPORT_ENV, which can make nesting jobs
simpler.

If SBATCH_EXPORT_ENV=NONE (which will cause SLURM_EXPORT_ENV=NONE to be set
in the batch step) is used alongside SRUN_EXPORT_ENV=ALL, this allows for
the batch environment to be reset, but then for changes made in the batch
script (e.g., loading modules with 'module load') to propagate out as part
of the step launch.

The same can be accomplished by the user in their scripts by explicitly
setting 'srun --export=ALL ...' for every step launch, but this should
provide an easier mechanism for sites to make this behavior the default
for their users by pushing this pair of environment variables into their
users default profiles.

Bug 5537.

Matches PrologSlurmctld/EpilogSlurmctld behavior to Prolog.

Bug 6615.

Bug 6737.

Bug 6252

to run RebootProgram from ctld.

Bug 6115

Bug 6010

Bug 6869

to guarantee a minimum runtime before preemption.

Bug 5519

to send user signal at preemption time.

Bug 5867

These are conditions that need to remain constant until something
changes on the job to reevaluate.

Bug 6625

What was happening here is you had to not be >= operator to have the old
limits removed.  This makes it so it always happens.

Bug 6625

Bug 6625

Before we went up the tree to the next assoc_ptr.  As we validate an
association on the id as well as the uid the assoc_ptr was eventually
going to become invalid.  Setting it to NULL here solves a bunch of
issues with things later on.

Bug 6625

Bug 6625

Bug 6625.

Don't abort when the job doesn't have an association that was removed before the job was able to make it to the database.

Bug 6625

Bug 6625

The backfill scheduler keeps a local list of job pointers. Since the
backfill scheduler yields locks, it's possible for pending jobs to be
canceled and purged in these yield periods. The backfill scheduler then
has pointers to now invalid memory, and dereferencing those pointers is
undefined behavior and may result in a segfault.

This commit prevents purging jobs while the backfill scheduler is
running.

Bug 6621

Bug 6739

Bug 6785.

Refactor how memory allocations are managed to accurately track
memory allocations on each node when the --mem-per-cpu option is
used and the CPU count per node varies. Also accounts for
Memory Specialization and wraps much of the logging with
a DebugFlag of SelectType

bug 5562

Bug 6787.

Bug 6608.

Bug 6807.

==8640== Thread 5 bckfl:
==8640== Syscall param openat(filename) points to unaddressable byte(s)
==8640==    at 0x4A81D0E: open (open64.c:48)
==8640==    by 0x5934ABB: _update_job_env (burst_buffer_cray.c:3338)
==8640==    by 0x5934ABB: bb_p_job_begin (burst_buffer_cray.c:3962)
...
==8640==  Address 0x6b96120 is 16 bytes inside a block of size 61 free'd
==8640==    at 0x48369AB: free (vg_replace_malloc.c:530)
==8640==    by 0x49D4873: slurm_xfree (xmalloc.c:244)
==8640==    by 0x490C317: free_command_argv (run_command.c:249)
==8640==    by 0x5934A5C: bb_p_job_begin (burst_buffer_cray.c:3947)
...
==8640==  Block was alloc'd at
==8640==    at 0x4837B65: calloc (vg_replace_malloc.c:752)
==8640==    by 0x49D4566: slurm_xmalloc (xmalloc.c:87)
==8640==    by 0x49D4B67: makespace (xstring.c:103)
==8640==    by 0x49D4C91: _xstrcat (xstring.c:134)
==8640==    by 0x49D4ECF: _xstrfmtcat (xstring.c:280)
==8640==    by 0x593497C: bb_p_job_begin (burst_buffer_cray.c:3936)
...

Bug 6807.

Bug 6807.

Bug 6807.

Bug 6807.

Changed the behavior of "scontrol reboot" to require the user to specify
the nodes to reboot rather than defaulting to ALL.

Bug 6465

This allows jobs to be placed on booting nodes rather than being given a
whole node even if it would have been better to wait for the node boot.

Bug 6782

to make nodes available after being suspended even if down, drain,
failed.

Bug 6212

Bug 6333

Bug 6501.

Bug 6791.

This prevents rebuilding a job's dependency string when it has at least
one invalid (never satisfied) dependency, no matter if such invalid
dependency has already been purged (after MinJobAge) or not. This can
be useful to track down the culprit invalid dependencies even after they
are gone from ctld's in-memory job list.

The flag is cleared upon a successful job dependency update or after
another job in the dependency list has been satisfied if such list is
composed with the '?' symbol (OR'ed).

Bug 5851.