Hi,
On 6/29/20 7:30 AM, wkmail@xxxxxxxxx wrote:
For many years, we have maintained a number of standalone,
hyperconverged Gluster/Libvirt clusters Replica 2 + Arbiter using Fuse
mount and Sharding.
Performance has been mostly acceptable. The clusters have high
availability and we have had very zero problems over the years as long
as we do green field upgrades to new major versions.
So that is the beauty of Gluster in our opinion. It is easy to setup and
use and it simply works without much thought.
As we ask more of our VMs, we see that disk i/o sometimes is a
bottleneck and I am looking at improving things.
On this list I keep on seeing comments that VM performance is better on
NFS and a general dissatisfaction with Fuse. So we are looking to see
for ourselves if NFS would be an improvement.
We looked into gfapi but our hosts are mostly Ubuntu and gfapi is not
built in. We would prefer to stay with stock components for the critical
underbelly of the infrastructure.
So in looking into NFS, I find instructions for NFS-Ganesha as a
standalone, and I see mentions of Gluster Drivers but then I see
mentions of StorHaug which sort of seems to be worked on. I also see
pacemaker type failover instructions.
There are gluster docs available to manually setup NFS-Ganesha on top of
gluster -
Standalone-
https://docs.gluster.org/en/latest/Administrator%20Guide/NFS-Ganesha%20GlusterFS%20Integration/#step-by-step-procedures-to-exporting-glusterfs-volume-via-nfs-ganesha
HA (using Pacemaker) -
https://docs.gluster.org/en/latest/Administrator%20Guide/NFS-Ganesha%20GlusterFS%20Integration/#using-highly-available-active-active-nfs-ganesha-and-glusterfs-cli
Its been a while since this document was added. So please let us know if
you run into any errors or any details are missing.
Also there are ansible playbooks written automating all the above manual
steps to configure NFS-Ganesha HA on Gluster. Maybe you could try that.
https://github.com/gluster/gluster-ansible-features
Thanks,
Soumya
Is there a set of instructions for replacing our Fuse Mount setup with
NFS/Ganesha and how HA is achieved (with or without StorHaug).
Any advice in this area would be appreciated.
-wk
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