Hey All,
Take the two hosts below as example. One host shows NFS Server on
192.168.0.60 (FQDN is mdskvm-p01.nix.mds.xyz).
The other shows mdskvm-p02 (FQDN is mdskvm-p02.nix.mds.xyz).
Why is there no consistency or correct hostname resolution? Where does
gluster get the hostnames from?
[root@mdskvm-p02 glusterfs]# gluster volume status
Status of volume: mdsgv01
Gluster process TCP Port RDMA Port Online Pid
------------------------------------------------------------------------------
Brick mdskvm-p02.nix.mds.xyz:/mnt/p02-d01/g
lusterv02 49153 0 Y
17503
Brick mdskvm-p01.nix.mds.xyz:/mnt/p01-d01/g
lusterv01 49153 0 Y
15044
NFS Server on localhost N/A N/A N N/A
Self-heal Daemon on localhost N/A N/A Y
17531
NFS Server on 192.168.0.60 N/A N/A N N/A
Self-heal Daemon on 192.168.0.60 N/A N/A Y
15073
Task Status of Volume mdsgv01
------------------------------------------------------------------------------
There are no active volume tasks
[root@mdskvm-p02 glusterfs]#
[root@mdskvm-p01 ~]# gluster volume status
Status of volume: mdsgv01
Gluster process TCP Port RDMA Port Online Pid
------------------------------------------------------------------------------
Brick mdskvm-p02.nix.mds.xyz:/mnt/p02-d01/g
lusterv02 49153 0 Y
17503
Brick mdskvm-p01.nix.mds.xyz:/mnt/p01-d01/g
lusterv01 49153 0 Y
15044
NFS Server on localhost N/A N/A N N/A
Self-heal Daemon on localhost N/A N/A Y
15073
NFS Server on mdskvm-p02 N/A N/A N N/A
Self-heal Daemon on mdskvm-p02 N/A N/A Y
17531
Task Status of Volume mdsgv01
------------------------------------------------------------------------------
There are no active volume tasks
[root@mdskvm-p01 ~]#
But when verifying everything all seems fine:
(1):
[root@mdskvm-p01 glusterfs]# dig -x 192.168.0.39
;; QUESTION SECTION:
;39.0.168.192.in-addr.arpa. IN PTR
;; ANSWER SECTION:
39.0.168.192.in-addr.arpa. 1200 IN PTR mdskvm-p02.nix.mds.xyz.
[root@mdskvm-p01 glusterfs]# hostname -f
mdskvm-p01.nix.mds.xyz
[root@mdskvm-p01 glusterfs]# hostname -s
mdskvm-p01
[root@mdskvm-p01 glusterfs]# hostname
mdskvm-p01.nix.mds.xyz
[root@mdskvm-p01 glusterfs]#
(2):
[root@mdskvm-p02 glusterfs]# dig -x 192.168.0.60
;; QUESTION SECTION:
;60.0.168.192.in-addr.arpa. IN PTR
;; ANSWER SECTION:
60.0.168.192.in-addr.arpa. 1200 IN PTR mdskvm-p01.nix.mds.xyz.
[root@mdskvm-p02 glusterfs]# hostname -s
mdskvm-p02
[root@mdskvm-p02 glusterfs]# hostname -f
mdskvm-p02.nix.mds.xyz
[root@mdskvm-p02 glusterfs]# hostname
mdskvm-p02.nix.mds.xyz
[root@mdskvm-p02 glusterfs]#
Gluster version used is:
[root@mdskvm-p01 glusterfs]# rpm -aq|grep -Ei gluster
glusterfs-server-3.12.15-1.el7.x86_64
glusterfs-client-xlators-3.12.15-1.el7.x86_64
glusterfs-rdma-3.12.15-1.el7.x86_64
glusterfs-3.12.15-1.el7.x86_64
glusterfs-events-3.12.15-1.el7.x86_64
libvirt-daemon-driver-storage-gluster-4.5.0-10.el7_6.12.x86_64
glusterfs-libs-3.12.15-1.el7.x86_64
glusterfs-fuse-3.12.15-1.el7.x86_64
glusterfs-geo-replication-3.12.15-1.el7.x86_64
python2-gluster-3.12.15-1.el7.x86_64
glusterfs-cli-3.12.15-1.el7.x86_64
vdsm-gluster-4.20.46-1.el7.x86_64
glusterfs-api-3.12.15-1.el7.x86_64
glusterfs-gnfs-3.12.15-1.el7.x86_64
[root@mdskvm-p01 glusterfs]#
--
Thx,
TK.
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