cluster/afr: Removed misleading log from afr_start_crawl

Problem: If it is fresh volume with no files created the xattrop directory is
         not present. If crawl happens in that time, lookup for xattrop
         directory will fail and it results in  printing a misleading log.

Fix:     Changed misleading log.

Change-Id: Iae5da3e8423564d64096f88abdaf8c98e4935840
BUG: 928575
Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com>
Reviewed-on: http://review.gluster.org/4993
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
mgmt/glusterd: Make sure peerinfo->uuid_str is assigned

Change-Id: I9e2743ab61c8baee92a1dfd376ec4bb145776176
BUG: 963524
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/5016
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
socket: Prevent extra logging in socket_rwv

Problem:
If the socket is not even connected socket_rwv fails
and the error log comes every 3 seconds for every
re-connect.

Fix:
Prevent this error log if the socket is not even
connected.

Change-Id: I963f1345c4b6779dd5491948f7f5c4357a507b67
BUG: 963088
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/5008
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>