Reset a job's memory limit based upon what's available after node
  reboot, which can change on a KNL if the MCDRAM mode is changes
  on reboot

This bug was likely the root cause of bug 3366. If the backfill scheduler
  allocates resources for a batch job and a node reboot is required, the
  batch launch RPC would be sent to the agent. At that point, there is a
  race condition between the agent and the job_time_limit() function
  testing for boot completion. If the job_time_limit() function ran
  first, it would trigger a second launch RPC request getting sent to
  the agent.
bug 3366

Clean up logic to test if job is configuring
bug 3366

Do not launch a batch step while the job is configuring. Previous
  logic checked for the PrologSlurmctld running, but not nodes
  booting. Checking the job's CONFIGURING state flag will validate
  both.
bug 3366

Add check to avoid step allocation logic from executing job
  configuration completion logic multiple times (check if job
  is configurating before clearing flag and resetting time limit).
bug 3366

slurmctld/agent race condition fix: Prevent job launch while PrologSlurmctld
    daemon is running or node boot in progress.
bug 3366

This is required to manage the configuration completion.
bug 3366

This will be required to lock the job structure
bug 3366

Remove the return value from the agent_retry() function. It is not
  used anywhere and needs to be removed to run as a pthread.
bug 3366

Reasonable NFS systems do not need a minute to propagate changes.

In favor of just using the -a option to show the tracking federated
jobs. This allows scontrol -a show jobs to show the tracking jobs as
well.

to indicate wheter the job was requeue held or not. This enables the
federation to trigger off whether the job was requeue held or not.

So that the origin job tell a remote cluster to cancel the job but mark
the job as requeued in the database.

See note about the KILL_* flags actually using 12bits instead of noted
8bits.

Follows pattern from c5ace562

If a job was requeued while in the completing state, the database wasn't
being updated with the requeue state.

When a fed job is requeued, it needs to be requeued to clusters that it was
submittted to.

When the a fed job is requeued and new siblings are submitted to the
other siblings, the restart_cnt needs to go to the siblings in case the
job runs on a remote sibling.

The federation needs to make a job_desc when requeueing jobs to
siblings.