[Gluster-users] Gluster questions

[Peter Michael Calum]

Hi group,

I'm new to Gluster, and still have a lot to learn..

I've build a 4 node setup for testing with Gluster 3.5.7  on CentOS 7.1.1503 (Core) an a replica 2 distributed volume
optimized for VM's. - I have a RHEV 3.5 (Redhat Enterprise Virtuliazation) setup connected to my volume with NFS
as a storage domain, and I have 3 test VM's running.

I have 3 questions :

1 : If I reboot one of the cluster nodes it won't start the gluster up correctly. Gluster is started but RPC does dot run.
I have tried to enable it with systemctl but it don't work. I have to start RPC manually and restart glusterd before the
local NFS service in glusterd starts. - Does anyone have seen this problem ?

2 : I have tried to connect from RHEV 3.5 and create a storage domain with the GLUSTERFS protocol, but this is not possible,
I get an error (Not possible to mount storage domain) In RHEV manager. I made a tcpdump and I can see that some version check
is performed. Am I right it it could be the RHEV3.5 is build for Red Hat Gluster version and therefore has an earlier client version
for gluster than 3.5.7 ? - Or are there backwards compability between clients and server ? - I think this could give problems in
the future when upgrading RHEV or Gluster.. Maybe Ovirt is better to use with gluster. - What do you think ?

3 : Does anyone knows a good maintenance guide for gluster to handle daily maintenance tasks, like taking a node out of service,
handling common errors, rebalancing and that kind of things..

Thanks for reading,

kind regards
Peter Calum


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