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Flight Engineer fmiranda Flight Engineer
Flight Engineer

Gluster Geo-replication setup differences between version 3.1 to 3.2

Hello,

I have put together a list of tasks for Geo-Replication based of our offcial documentation on Red Hat Gluster Storage : 

This is what I found: 

Gluster 3.1:

Step by Step Geo-Replication:

1- Enable shared storage on master node
 
#gluster volume set all cluster.enable-shared-storage enable
 
2 - create a SSH keypair without a passphrase on master node
 
#ssh-keygen
 
3 - Copy the SSH key password less SSH access to your slave nodes (on master node)
 
#ssh-copy-id <standard user>@<slave node>
 
4 - On the slave node
 
#mkdir /var/mountbroker-root
#chmod 0711 /var/mountbroker-root
#semanage fcontext -a -e /home /var/mountbroker-root
#restorecon -Rv /var/mountbroker-root
 
5 - Configure the options for the glusterd and restart service (on slave node)
 
#gluster system:: execute mountbroker opt mountbroker-root /var/mountbroker-root
#gluster system:: execute mountbroker user geoaccount slavevol
#gluster system:: execute mountbroker opt geo-replication-log-group geogroup
#gluster system:: execute mountbroker opt rpc-auth-allow-insecure on
# systemctl restart glusterd
 
6 - On the master node
 
#gluster system:: execute gsec_create
#gluster volume geo-replication mastervol geoaccount@servere::slavevol create push-pem
 
7 - On slave server
 
#/usr/libexec/glusterfs/set_geo_rep_pem_keys.sh geoaccount mastervol slavevol 
 
8 - On Master
 
#gluster volume geo-replication mastervol geoaccount@servere::slavevol config use_meta_volume true
 
#gluster volume geo-replication mastervol geoaccount@servere::slavevol start
 
Gluster 3.2:
On the slave node:
 
#gluster-mountbroker setup </var/mountbroker-root> <geogroup>
#gluster-mountbroker add <slavevol> <geoaccount>
#systemctl restart glusterd 
 
On the Master node:
#ssh-keygen
#ssh-copy-id <geoaccount>@<slave_node>
#gluster system:: execute gsec_create
#gluster volume geo-replication <mastervol> <geoaccount>@<slave_node>::<slavevol> create push-pem
 
On the Slave node:
/usr/libexec/glusterfs/set_geo_rep_pem_keys.sh <geoaccount> <mastervol> <slavevol>
 
On the Master node:
#gluster volume geo-replication <mastervol> <slave_node>::<slavevol> config use_meta_volume true
 
#gluster volume geo-replication <mastervol> <geoaccount>@<slave_node>::<slavevol> start
 
#gluster volume geo-replication <mastervol> <geoaccount>@<slave_node>::<slavevol> status
 
You can see that on Gluster 3.2 we don't have to type as much, but my questions are:
 
3.1:
#mkdir /var/mountbroker-root
#chmod 0711 /var/mountbroker-root
#semanage fcontext -a -e /home /var/mountbroker-root
#restorecon -Rv /var/mountbroker-root 
#gluster system:: execute mountbroker opt mountbroker-root /var/mountbroker-root
#gluster system:: execute mountbroker user geoaccount slavevol
#gluster system:: execute mountbroker opt geo-replication-log-group geogroup
#gluster system:: execute mountbroker opt rpc-auth-allow-insecure on
# systemctl restart glusterd
 
3.2:
 
#gluster-mountbroker setup </var/mountbroker-root> <geogroup>
#gluster-mountbroker add <slavevol> <geoaccount>
#systemctl restart glusterd 
 
Are those two steps equivalent (given the correct Gluster version) ?
 
Thank you,
 
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