Hi Gluster users,
First, I'd like to thank you all for this amazing open-source! Thank you!
I'm working on home project – three servers with Gluster and NFS-Ganesha. My goal is to create HA NFS share with three copies of each file on each server.
My systems are CentOS 7.3 Minimal install with the latest updates and the most current RPMs from "centos-gluster310" repository.
I followed this tutorial: http://blog.gluster.org/2015/10/linux-scale-out-nfsv4-using-nfs-ganesha-and-glusterfs-one-step-at-a-time/
(second half that describes multi-node HA setup)
with a few exceptions:
1. All RPMs are from "centos-gluster310" repo that is installed by "yum -y install centos-release-gluster"
2. I have three nodes (not four) with "replica 3" volume.
3. I created empty ganesha.conf and not empty ganesha-ha.conf in "/var/run/gluster/shared_storage/nfs-ganesha/" (referenced blog post is outdated, this is now requirement)
4. ganesha-ha.conf doesn't have "HA_VOL_SERVER" since this isn't needed anymore.
When I finish configuration, all is good. nfs-ganesha.service is active and running and from client I can ping all three VIPs and I can mount NFS. Copied files are replicated to all nodes.
But when I restart nodes (one by one, with 5 min. delay between) then I cannot ping or mount (I assume that all VIPs are down). So my setup definitely isn't HA.
I found that:
# pcs status
Error: cluster is not currently running on this node
and nfs-ganesha.service is in inactive state. Btw. I didn't enable "systemctl enable nfs-ganesha" since I assume that this is something that Gluster does.
I assume that my issue is that I followed instructions in blog post from 2015/10 that are outdated. Unfortunately I cannot find anything better – I spent whole day by googling.
Would you be so kind and check the instructions in blog post and let me know what steps are wrong / outdated? Or please do you have more current instructions for Gluster+Ganesha setup?
Thank you.
Kind regards,
Adam
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