Hello, I have a 3 node ovirt 4.3 cluster that I've setup and using gluster (Hyperconverged setup) I need to increase the amount of storage and compute so I added a 4th host (server4.example.com) if it is possible to expand the amount of bricks (storage) in the "data" volume? I did some research and from that research the following caught my eye: old post "https://medium.com/@tumballi/scale-your-gluster-cluster-1-node-at-a-time-62d..." So the question is, if taking that approach feasible? , is it even possible an oVirt point of view? --------------------------- My gluster volume: --------------------------- Volume Name: data Type: Replicate Volume ID: 003ffea0-b441-43cb-a38f-ccdf6ffb77f8 Status: Started Snapshot Count: 0 Number of Bricks: 1 x (2 + 1) = 3 Transport-type: tcp Bricks: Brick1: server1.example1.com:/gluster_bricks/data/data Brick2: server2.example.com:/gluster_bricks/data/data Brick3: server3.example.com:/gluster_bricks/data/data (arbiter) Options Reconfigured: cluster.granular-entry-heal: enable performance.strict-o-direct: on network.ping-timeout: 30 storage.owner-gid: 36 storage.owner-uid: 36 cluster.choose-local: off user.cifs: off features.shard: on cluster.shd-wait-qlength: 10000 cluster.shd-max-threads: 8 cluster.locking-scheme: granular cluster.data-self-heal-algorithm: full cluster.server-quorum-type: server cluster.quorum-type: auto cluster.eager-lock: enable network.remote-dio: enable performance.low-prio-threads: 32 performance.io-cache: off performance.read-ahead: off performance.quick-read: off transport.address-family: inet nfs.disable: on performance.client-io-threads: off Thanks.
On Thu, Feb 21, 2019 at 8:47 PM <adrianquintero@gmail.com> wrote:
Hello, I have a 3 node ovirt 4.3 cluster that I've setup and using gluster (Hyperconverged setup) I need to increase the amount of storage and compute so I added a 4th host (server4.example.com) if it is possible to expand the amount of bricks (storage) in the "data" volume?
I did some research and from that research the following caught my eye: old post "https://medium.com/@tumballi/scale-your-gluster-cluster-1-node-at-a-time-62d..." So the question is, if taking that approach feasible? , is it even possible an oVirt point of view?
Expanding by 1 node is only possible if you have sufficient space on the existing nodes in order to create a replica 2 + arbiter volume. The post talks of how you can create your volumes in a way that you can move the bricks around so that the each of the bricks in a replica set reside on a separate server. We do not have an automatic way to provision and rebalance the bricks yet in order to expand by 1 node.
--------------------------- My gluster volume: --------------------------- Volume Name: data Type: Replicate Volume ID: 003ffea0-b441-43cb-a38f-ccdf6ffb77f8 Status: Started Snapshot Count: 0 Number of Bricks: 1 x (2 + 1) = 3 Transport-type: tcp Bricks: Brick1: server1.example1.com:/gluster_bricks/data/data Brick2: server2.example.com:/gluster_bricks/data/data Brick3: server3.example.com:/gluster_bricks/data/data (arbiter) Options Reconfigured: cluster.granular-entry-heal: enable performance.strict-o-direct: on network.ping-timeout: 30 storage.owner-gid: 36 storage.owner-uid: 36 cluster.choose-local: off user.cifs: off features.shard: on cluster.shd-wait-qlength: 10000 cluster.shd-max-threads: 8 cluster.locking-scheme: granular cluster.data-self-heal-algorithm: full cluster.server-quorum-type: server cluster.quorum-type: auto cluster.eager-lock: enable network.remote-dio: enable performance.low-prio-threads: 32 performance.io-cache: off performance.read-ahead: off performance.quick-read: off transport.address-family: inet nfs.disable: on performance.client-io-threads: off
Thanks. _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/HKPAM65CSDJ7LQ...
Thank you for the explanation, so from my understanding we can't have a hyperconverged setup if more that 3 nodes are required? or is it possible if gluster is setup separate of the oVirt node installs?
From my understanding both are possible. Gluster storage can be completely separate (at that point you would not be working with a hyperconverged configuration). You should also be able to expand a hyperconverged setup past 3 nodes but not by only 1 node, you'd need to add more nodes. On Thu, Apr 11, 2019 at 8:53 AM <adrianquintero@gmail.com> wrote:
Thank you for the explanation, so from my understanding we can't have a hyperconverged setup if more that 3 nodes are required? or is it possible if gluster is setup separate of the oVirt node installs? _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/77URQGHY7LBF4H...
Would you know of any documentation that I could follow for that type of setup? I have read quite a bit about oVIrt and Hyperconverged but I have only found 3 node setup examples, nobody seems to go past that or at least I've yet to find one. I already have a 3 node setup with hyperconverged and working as it should with no issues and tested fail scenarios, but I need to have an environment with at least 12 servers and be able to maintain the correct fail scenarios with storage (gluster), however I cant seem to figure out the proper steps to achieve this. So if anyone can point me in the right direction it will help a lot, and once I test I should be able to provide back any knowledge that I gain with such type of setup. thanks again.
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adrianquintero＠gmail.com -
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Sahina Bose