Hi,
On 11/05/2016 12:29 AM, ML Wong wrote:
I like to ask for some recommendations here.
1) For /usr/libexec/ganesha/ganesha-ha.sh, as we have been taking
advantages of using pacemaker+corosync for some other services, however,
we always run into the issue of losing other resources we setup in the
cluster when we run ganesha-ha.sh add/delete. Just like to know if
that's what is expected? I have already tried 2 different setups, they
both give me the same result, just like to better understand if i need
to find a way to work around for our environment.
Do you mean you are using pacemaker+corosync to manage services other
than nfs-ganesha and you loose those resources when ganesha.sh
add/delete operation is performed? Could you please provide details
about those resources affected?
2) Have anyone of you running into a scenario - with a demand of only
adding capacity to the Gluster volume, but not necessary to add more
nodes available to the Cluster? Meaning, continue adding bricks
accordingly to the existing Gluster volume, but without doing the
ganesha-ha.sh --add node process? Is it a bad idea? Or, between
Ganesha, and Gluster, do they have to have same number of
"HA_CLUSTER_NODES" as the number of Gluster peers?
Its perfectly acceptable. Ganesha cluster is a subset of Gluster trusted
storage pool. So you can increase the capacity of gluster volume without
the need to alter the nfs-ganesha cluster.
3) Have anyone in the list tried adding nodes into Ganesha without using
ganesha-ha.sh? And, just by using "pcs"? Ganesha team, do i miss any
other resource, and constraints for new nodes?
a) nfs_setup/mon/grace-clone
b) [node]-cluster_ip-1,
c) location constraint for each member-node with score priority
d) location-nfs-grace-clone
e) order constraints
I am not sure if any one has tried out that. We strongly recommend to
use the ganesha.sh script as there could be additions/fixes which went
in that script w.r.t cluster configuration. You may have to double-check
the resources and constraints every time you try to configure them
manually. Do you see any difference between using the script and the
manual configuration?
Thanks,
Soumya
Thanks all,
Melvin
For gluster-user, i am not sure if this is the right list to post. Sorry
for the spam.
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