How to extend volume after cluster extended from 2 nodes to 3 nodes

[imranrazakhan]

Kind of issue

Feature request

Observed behavior

I have three nodes storage cluster and i deployed like below

1. Installed glusterfs-server, heketi on 2 nodes and created volume from openshift

heketi-cli volume info dd0cbdc724052b59748f668929fda89c

Name: vol_dd0cbdc724052b59748f668929fda89c
Size: 5
Volume Id: dd0cbdc724052b59748f668929fda89c
Cluster Id: 84660f06394d0169e92b174ebeb32a5a
Mount: 10.1.1.2:vol_dd0cbdc724052b59748f668929fda89c
Mount Options: backup-volfile-servers=10.1.1.1
Block: false
Free Size: 0
Block Volumes: []
Durability Type: none

2. I added third node and it was successfully added in cluster and now again created volume

# heketi-cli volume info da33ed8c6e4dae814201da13a8c8baab
Name: vol_da33ed8c6e4dae814201da13a8c8baab
Size: 5
Volume Id: da33ed8c6e4dae814201da13a8c8baab
Cluster Id: 84660f06394d0169e92b174ebeb32a5a
Mount: 10.1.1.2:vol_da33ed8c6e4dae814201da13a8c8baab
Mount Options: backup-volfile-servers=10.1.1.1,10.1.1.3
Block: false
Free Size: 0
Block Volumes: []
Durability Type: replicate
Distributed+Replica: 3

Expected/desired behavior

Now 2 node volume has bricks on only first two nodes, how we can extend 2 nodes volume so it look like
3 nodes volume??

Information about the environment:

• Operating system used: CentOS
• Heketi compiled from sources, as a package (rpm/deb), or container: rpm
• If container, which container image:
• Using kubernetes, openshift, or direct install: openshift
• If kubernetes/openshift, is gluster running inside kubernetes/openshift or outside: outside
• If kubernetes/openshift, how was it deployed (gk-deploy, openshift-ansible, other, custom): openshift-ansible

[imranrazakhan]

I am closing this issue as one issue already created to ask for this feature.