cnodes can be reserved directly since 14.11. The plugin itself
printed warnings that it would be removed circa 15.08, following
through before 16.05.

Cray: Not running the Node Health Check after every job and step is now the
    default. Configure SelectTypeParameters with the NHC and/or NHC_STEP to
    run them.

Add an "scontrol top <jobid>" command to re-order the priorities of a user's
    pending jobs. May be disabled with the "disable_user_top" option in the
    SchedulerParameters configuration parameter.
bug 1133

The partition-specific SelectTypeParameters parameter can now be used to
    change the memory allocation tracking specification in the global
    SelectTypeParameters configuration parameter. Supported partition-specific
    values are CR_Core, CR_Core_Memory, CR_Socket and CR_Socket_Memory. If the
    global SelectTypeParameters value includes memory allocation management and
    the partition-specific value does not, then memory allocation management for
    that partition will NOT be supported (i.e. memory can be over-allocated).
    Likewise the global SelectTypeParameters might not include memory management
    while the partition-specific value does.
bug 2239

If a reservation's nodes value is "all" then track the current nodes in the
    system, even if those nodes change. Nodes will automatically be added to
    or removed from a reservation when slurm.conf changes.
bug 2204

Bug 2281

Rename the variable to match rest of codebase while here. This is related to
bug 2295, although snprintf() protects against buffer overflow in 15.08 and up.

Burst buffer advanced reservation units treated as bytes (per documentation)
    rather than GB.

time.

static/overlap systems when some hardware issue happens when restarting
the slurmctld.

a dynamic system and mark the block in error on a static/overlap system.

Bug 2273

Don't use lower weight nodes for job allocation when topology/tree used.
bug 2284

Preemption/gang scheduling: If a job is suspended at slurmctld restart or
    reconfiguration time, then leave it suspended rather than resume+suspend.
bug 2274

task/affinity: Disable core-level task binding if more CPUs required than
    available cores.
bug 2267

Log as error if more than 3 aeld connects per second that cause is
  likely duplicate slurmctld daemon
bug 2278

This is needed to properly enforce limits and account for usage.

Change default CgroupMountpoint (in cgroup.conf) from "/cgroup" to
    "/sys/fs/cgroup" to match current standard.
For details, see https://wiki.freedesktop.org/www/Software/systemd/PaxControlGroups/

Remove the 1024-character limit on lines in batch scripts, which was
causing long lines to be silently truncated. I noticed it when jobs were
getting created with fewer dependencies than specified.

Also increase the line length when showing job info.

sched/backfill: If a job can not be started within the configured
    backfill_window, set it's start time to 0 (unknown) rather than the end
    of the backfill_window.
bug 2100

If a pending job array has multiple reasons for being in a pending state,
    then print all reasons in a comma separated list.

Before:
             JOBID PARTITION     NAME     USER ST       TIME  NODES NODELIST(REASON)
       97354_[1-4]     debug      tmp    jette PD       0:00      1 (Resources)

After:
             JOBID PARTITION     NAME     USER ST       TIME  NODES NODELIST(REASON)
       97354_[1-4]     debug      tmp    jette PD       0:00      1 (Resources,JobHeldUser)

Bug 2130

Move slurmctld mail handler to separate thread for improved performance.
Original logic did fork/exec without separate thread and if the
slurmctld memory size is huge, then the time required for fork()
to complete can be significant.
bug 2252

Avoid hard-link/copy of script/environment files for job arrays. Use the
    master job record file for all tasks of the job array.
back port of commit 41eead64
bug 2220

Refactor logic to synchronize active bach jobs and their script/environment
    files, reducing overhead dramatically for large numbers of active jobs.
backport of commit 41eead64
bug 2220

If a job can never be started due to unsatisfied job dependencies, report
    the full original job dependency specification rather than the dependencies
    remaining to be satisfied (typically NULL).
bug 2197

in use.

_slurm_rpc_complete_job_allocation.

This is a rewrite of 438365ec which didn't catch the job_ptr wasn't
in a lock so the memory issue could still of existed.  This hopefully fixes
all the spots the job_ptr wasn't in the lock.

Fixes bug 2146

Bug 2261

15.08.5.

Bug 2243