Perhaps I misread the intent, I apologize if I did. I read "static
entries" as "ip addresses" which I've seen suggested (from my
perspective) far too often. /etc/hosts is a valid solution that can
still adapt if the network needs to evolve.
On 9/23/19 8:29 AM, ROUVRAIS Cedric wrote:
Hello,
I guess everyone sort of has his perspective on this topic.
I don't want to take this thread on an off-topic conversation (discussing the
merits of having a local hosts file) but I do dissent, and therefore had to
respond, on the shortcut that using a local etc/host file creates a fixed
network configuration that can never adapt as business needs change. I'm
running a k8s infrastructure and actually have local conf files, FWIW.
Regards,
Cédric
-----Original Message-----
From: [email protected] <[email protected]> On
Behalf Of Joe Julian
Sent: lundi 23 septembre 2019 17:06
To: [email protected]
Subject: Re: [Gluster-users] Where does Gluster capture the hostnames from?
I disagree about it being "best practice" to lock yourself in to a fixed
network configuration that can never adapt as business needs change.
There are other resilient ways of ensuring your hostnames resolve consistently
(so that your cluster doesn't run loose ;-)).
On 9/23/19 7:38 AM, Strahil wrote:
Also,
It's more safe to have static entries for your cluster - after all if DNS fails
for some reason - you don't want to loose your cluster.A kind of 'Best
Practice'.
Best Regards,
Strahil NikolovOn Sep 23, 2019 15:01, TomK <[email protected]> wrote:
Do I *really* need specific /etc/hosts entries when I have IPA?
[root@mdskvm-p01 ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4
localhost4.localdomain4
::1 localhost localhost.localdomain localhost6
localhost6.localdomain6
[root@mdskvm-p01 ~]#
I really shouldn't need too. ( Ref below, everything resolves fine.
)
Cheers,
TK
On 9/23/2019 1:32 AM, Strahil wrote:
Check your /etc/hosts for an entry like:
192.168.0.60 mdskvm-p01.nix.mds.xyz mdskvm-p01
Best Regards,
Strahil NikolovOn Sep 23, 2019 06:58, TomK <[email protected]> wrote:
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
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Community Meeting Calendar:
APAC Schedule -
Every 2nd and 4th Tuesday at 11:30 AM IST
Bridge: https://bluejeans.com/118564314
NA/EMEA Schedule -
Every 1st and 3rd Tuesday at 01:00 PM EDT
Bridge: https://bluejeans.com/118564314
Gluster-users mailing list
[email protected]
https://lists.gluster.org/mailman/listinfo/gluster-users
________
Community Meeting Calendar:
APAC Schedule -
Every 2nd and 4th Tuesday at 11:30 AM IST
Bridge: https://bluejeans.com/118564314
NA/EMEA Schedule -
Every 1st and 3rd Tuesday at 01:00 PM EDT
Bridge: https://bluejeans.com/118564314
Gluster-users mailing list
[email protected]
https://lists.gluster.org/mailman/listinfo/gluster-users
________
Community Meeting Calendar:
APAC Schedule -
Every 2nd and 4th Tuesday at 11:30 AM IST
Bridge: https://bluejeans.com/118564314
NA/EMEA Schedule -
Every 1st and 3rd Tuesday at 01:00 PM EDT
Bridge: https://bluejeans.com/118564314
Gluster-users mailing list
[email protected]
https://lists.gluster.org/mailman/listinfo/gluster-users
