[Gluster-users] dummy node issue

Marcos Renato da Silva Junior marcosjr at dee.feis.unesp.br
Tue Jan 12 17:52:39 UTC 2016


Hi,

I'm testing a scenario with 3 servers and 1 client.

I wonder if it is the best way for high availability and redundancy.

In my test worked well even when server1 or server2 is down, but i dont now.

Sorry for english.


version : glusterfs 3.6.1


server1
server2
server3 - dummy node/arbiter node
client


on server1 :

gluster peer probe server2
gluster peer probe server3

gluster volume create testvol replica 2 transport tcp 
server1:/data/export server2:/data/export

gluster volume start testvol


on server2 :

gluster peer probe server1


on client :

mount.glusterfs server1:/testvol /mnt/glusterfs -o 
backupvolfile-server=server2




Hostname: server2
Uuid: 73ccd5d1-c672-4bc7-875c-d874e568632a
State: Peer in Cluster (Connected)

Hostname: server3
Uuid: b712284c-5b42-4c0e-b67c-a908aa47bd3c
State: Peer in Cluster (Connected)


Volume Name: testvol
Type: Replicate
Volume ID: f0c7a490-285d-43f6-8e36-c6eb5edb6d20
Status: Started
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: server1:/data/export
Brick2: server2:/data/export


Gathering list of entries to be healed on volume testvol has been 
successful

Brick server1:/data/export
Number of entries: 0

Brick server2:/data/export
Number of entries: 0


Status of volume: testvol
Gluster process                                    Port    Online Pid
------------------------------------------------------------------------------
Brick server1:/data/export                    49152    Y    3576
Brick server2:/data/export                    49152    Y    3370
NFS Server on localhost                        2049      Y    3583
Self-heal Daemon on localhost              N/A        Y    3588
NFS Server on server3                           2049     Y    13095
Self-heal Daemon on server3                N/A        Y    13108
NFS Server on server2                           2049     Y    3363
Self-heal Daemon on server2                N/A        Y    3371

Task Status of Volume testvol
------------------------------------------------------------------------------
There are no active volume tasks



Thanks.

-- 
Marcos Renato da Silva Junior
Universidade Estadual Paulista - Unesp
Faculdade de Engenharia de Ilha Solteira - FEIS
Departamento de Engenharia Elétrica
15385-000 - Ilha Solteira/SP
(18) 3743-1164



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