3:34 a.m.
Hi Leo,
Gluster is quite smart, but in order to provide any hints , can you provide output of
'gluster volume info <glustervol>'.
If you have 2 more systems , keep in mind that it is best to mirror the storage on the
second replica (2 disks on 1 machine -> 2 disks on the new machine), while for the
arbiter this is not neccessary.
What is your network and NICs ? Based on my experience , I can recommend at least 10
gbit/s interfase(s).
Best Regards,
Strahil NikolovOn May 26, 2019 07:52, Leo David <leoalex(a)gmail.com> wrote:
Hello Everyone,
Can someone help me to clarify this ?
I have a single-node 4.2.8 installation ( only two gluster storage domains - distributed
single drive volumes ). Now I just got two identintical servers and I would like to go for
a 3 nodes bundle.
Is it possible ( after joining the new nodes to the cluster ) to expand the existing
volumes across the new nodes and change them to replica 3 arbitrated ?
If so, could you share with me what would it be the procedure ?
Thank you very much !
Leo
3:54 a.m.
New subject: Single instance scaleup.
Hi Stahil,
Thank you so much for yout input !
gluster volume info
Volume Name: engine
Type: Distribute
Volume ID: d7449fc2-cc35-4f80-a776-68e4a3dbd7e1
Status: Started
Snapshot Count: 0
Number of Bricks: 1
Transport-type: tcp
Bricks:
Brick1: 192.168.80.191:/gluster_bricks/engine/engine
Options Reconfigured:
nfs.disable: on
transport.address-family: inet
storage.owner-uid: 36
storage.owner-gid: 36
features.shard: on
performance.low-prio-threads: 32
performance.strict-o-direct: off
network.remote-dio: off
network.ping-timeout: 30
user.cifs: off
performance.quick-read: off
performance.read-ahead: off
performance.io-cache: off
cluster.eager-lock: enable
Volume Name: ssd-samsung
Type: Distribute
Volume ID: 76576cc6-220b-4651-952d-99846178a19e
Status: Started
Snapshot Count: 0
Number of Bricks: 1
Transport-type: tcp
Bricks:
Brick1: 192.168.80.191:/gluster_bricks/sdc/data
Options Reconfigured:
cluster.eager-lock: enable
performance.io-cache: off
performance.read-ahead: off
performance.quick-read: off
user.cifs: off
network.ping-timeout: 30
network.remote-dio: off
performance.strict-o-direct: on
performance.low-prio-threads: 32
features.shard: on
storage.owner-gid: 36
storage.owner-uid: 36
transport.address-family: inet
nfs.disable: on
The other two hosts will be 192.168.80.192/193 - this is gluster dedicated
network over 10GB sfp+ switch.
- host 2 wil have identical harware configuration with host 1 ( each disk
is actually a raid0 array )
- host 3 has:
- 1 ssd for OS
- 1 ssd - for adding to engine volume in a full replica 3
- 2 ssd's in a raid 1 array to be added as arbiter for the data volume
( ssd-samsung )
So the plan is to have "engine" scaled in a full replica 3, and
"ssd-samsung" scalled in a replica 3 arbitrated.
On Sun, May 26, 2019 at 10:34 AM Strahil <hunter86_bg(a)yahoo.com> wrote:
Hi Leo,
Gluster is quite smart, but in order to provide any hints , can you
provide output of 'gluster volume info <glustervol>'.
If you have 2 more systems , keep in mind that it is best to mirror the
storage on the second replica (2 disks on 1 machine -> 2 disks on the new
machine), while for the arbiter this is not neccessary.
What is your network and NICs ? Based on my experience , I can recommend
at least 10 gbit/s interfase(s).
Best Regards,
Strahil Nikolov
On May 26, 2019 07:52, Leo David <leoalex(a)gmail.com> wrote:
Hello Everyone,
Can someone help me to clarify this ?
I have a single-node 4.2.8 installation ( only two gluster storage domains
- distributed single drive volumes ). Now I just got two identintical
servers and I would like to go for a 3 nodes bundle.
Is it possible ( after joining the new nodes to the cluster ) to expand
the existing volumes across the new nodes and change them to replica 3
arbitrated ?
If so, could you share with me what would it be the procedure ?
Thank you very much !
Leo
--
Best regards, Leo David
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