[Gluster-users] Brick Reboot => VMs slowdown, client crashes

[Guy Boisvert]

On 2019-08-19 12:08 p.m., Darrell Budic wrote:
> You also need to make sure your volume is setup properly for best performance. Did you apply the gluster virt group to your volumes, or at least features.shard = on on your VM volume?

That's what we did here:


gluster volume set W2K16_Rhenium cluster.quorum-type auto
gluster volume set W2K16_Rhenium network.ping-timeout 10
gluster volume set W2K16_Rhenium auth.allow \*
gluster volume set W2K16_Rhenium group virt
gluster volume set W2K16_Rhenium storage.owner-uid 36
gluster volume set W2K16_Rhenium storage.owner-gid 36
gluster volume set W2K16_Rhenium features.shard on
gluster volume set W2K16_Rhenium features.shard-block-size 256MB
gluster volume set W2K16_Rhenium cluster.data-self-heal-algorithm full
gluster volume set W2K16_Rhenium performance.low-prio-threads 32

tuned-adm profile random-io        (a profile i added in CentOS 7)


cat /usr/lib/tuned/random-io/tuned.conf
===========================================
[main]
summary=Optimize for Gluster virtual machine storage
include=throughput-performance

[sysctl]

vm.dirty_ratio = 5
vm.dirty_background_ratio = 2


Any more optimization to add to this?


Guy

-- 
Guy Boisvert, ing.
IngTegration inc.
http://www.ingtegration.com
https://www.linkedin.com/in/guy-boisvert-8990487

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