Problem:
It is not guranteed that the self-heal daemon would apply the new option
as soon as volume set is executed because all the command gurantees is that
the process is notified of the change in volfile. Shd still needs to fetch
volfile and reconfigure. If the next volume heal command comes even before
the reconfigure happens, then the heal won't happen.

Fix:
Restart shd to make sure it has the option loaded with new value.

BUG: 1358976
Change-Id: I3ed30ebbec17bd06caa632e79e9412564f431b19
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/14978
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Tested-by: Jeff Darcy <jdarcy@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>

Introduce cluster.favorite-child-policy which when enabled with
[ctime|mtime|size|majority], automatically heals files that are in
split-brian.

The majority policy will not pick a source if there is no majority.
The other three policies pick the first brick with a valid reply and
non-zero ctime/mtime/size as source.

Change-Id: I3c099a0404082213860f74f2c9b4d207cfaedb76
BUG: 1328224
Original-author: Richard Wareing <rwareing@fb.com>
Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-on: http://review.gluster.org/14026
Smoke: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anuradha Talur <atalur@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>