[Savannah-hackers-public] Please avoid removing ntp on nfs1

[Bob Proulx]

The time on nfs1 is drifing badly.  It is currently 1m8s fast.

  root@mgt0:~# dsh.sh date -R | sort
  + dsh -M -c -f hostlist date -R
  download0: Sat, 07 Dec 2019 15:22:01 -0500
  frontend-dev: Sat, 07 Dec 2019 15:22:00 -0500
  frontend0: Sat, 07 Dec 2019 15:22:01 -0500
  frontend1: Sat, 07 Dec 2019 15:22:01 -0500
  internal0: Sat, 07 Dec 2019 15:22:01 -0500
  mgt0: Sat, 07 Dec 2019 15:22:01 -0500
  nfs1: Sat, 07 Dec 2019 15:23:09 -0500
  vcs0: Sat, 07 Dec 2019 15:22:01 -0500
  vcs1: Sat, 07 Dec 2019 15:22:01 -0500

  root@mgt0:~# dsh.sh date +%s | sort
  + dsh -M -c -f hostlist date +%s
  download0: 1575750140
  frontend-dev: 1575750139
  frontend0: 1575750140
  frontend1: 1575750140
  internal0: 1575750140
  mgt0: 1575750140
  nfs1: 1575750208
  vcs0: 1575750140
  vcs1: 1575750140

In an NFS environment keeping system clock time in sync between client
and servers is a critical requirement.  Having them out of sync causes
many very strange problems that are hard to debug.  Been there.  Done
that.  System clock time being out of sync is one of the things I
routinely check now when I am looking at anything related to nfs.

I can see in the logs that although ntp has been installed a few times
that it always gets removed.  I am installing it again.  I'll mark it
'hold' so that it sticks around.

Thanks!
Bob