[Gluster-devel] GlusterFS High Availability setup and DNS round-robin

[Sebastien LELIEVRE]

Anand Avati a écrit :

> 2. the protocol/client handles round-robin DNS gracefully. you can have just
> one protocol/client section in the client specification which has a hostname
> which resolves to 3 differnt server IPs (either via bind configuration, or
> multiple /etc/hosts entries for differnt IP and same hostname). 

So something like :

   volume santa
     type protocol/client
     option transport-type tcp/client
     option remote-host servers.mygluster.lan
     option remote-subvolume mailspool
   end-volume

Where servers.mygluster.lan resolves either 10.64.98.147, 10.64.98.144,
and 10.64.98.146 (in this example)

> When one server disconnects, glusterfs now automatically tries the
> second IP from the dns reply. (loops over to the next IP per
> reconnection and then does a fresh DNS lookup after one iteration) -
> This option can work as an intermediate solution until the HA xlator
> comes in.



Sebastien.