[Gluster-users] Gluster speed

Strahil Nikolov hunter86_bg at yahoo.com
Wed Jan 5 00:04:09 UTC 2022

That doesn't clarify anything.I can mount my GlusterFS brick on a VM, or I can mount the volume via the FUSE .If you have the first, then ensure you don't have double I/O queueing (set the I/O scheduler to noop/none).
Also, you will need to profile your volume to get a clear picture when your volume is having troubles.
Having a lot of event-threads could lead to locking contention, so try with smaller numbers first.
Also, ensure setting sane 'dirty' sysctl tunables, the maximum MTU possible and also test by disabling Large Receive Offload (LRO)

Best Regards,
Strahil Nikolov 
  On Fri, Dec 17, 2021 at 22:50, Erik Frangež<erik at frangez.net> wrote:   <!--#yiv5835891221 _filtered {} _filtered {} _filtered {} _filtered {} _filtered {} _filtered {}#yiv5835891221 #yiv5835891221 p.yiv5835891221MsoNormal, #yiv5835891221 li.yiv5835891221MsoNormal, #yiv5835891221 div.yiv5835891221MsoNormal {margin:0cm;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv5835891221 a:link, #yiv5835891221 span.yiv5835891221MsoHyperlink {color:blue;text-decoration:underline;}#yiv5835891221 p.yiv5835891221p1, #yiv5835891221 li.yiv5835891221p1, #yiv5835891221 div.yiv5835891221p1 {margin-right:0cm;margin-left:0cm;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv5835891221 p.yiv5835891221msonormal, #yiv5835891221 li.yiv5835891221msonormal, #yiv5835891221 div.yiv5835891221msonormal {margin-right:0cm;margin-left:0cm;font-size:11.0pt;font-family:"Calibri", sans-serif;}#yiv5835891221 span.yiv5835891221s1 {}#yiv5835891221 span.yiv5835891221EmailStyle29 {font-family:"Tahoma", sans-serif;color:windowtext;}#yiv5835891221 .yiv5835891221MsoChpDefault {font-size:10.0pt;} _filtered {}#yiv5835891221 div.yiv5835891221WordSection1 {}-->


We are using Gluster as a mounted storage on VM. We mount it in /etc/fstab as glusterfs disk.


Thank you for help!


Best, Erik


From: Strahil Nikolov <hunter86_bg at yahoo.com>
Date: Thursday, 16 December 2021 at 23:04
To: <gluster-users at gluster.org>, Erik Frangež <erik at frangez.net>
Subject: Re: [Gluster-users] Gluster speed


Are you using Gluster as VM Disk storage or you use Gluster as App storage via the FUSE client ?

Best Regards,
Strahil Nikolov

В сряда, 15 декември 2021 г., 17:23:10 Гринуич+2, Erik Frangež <erik at frangez.net> написа: 



Hello guys,


I have set up 3 vm and combine them with GlusterFS which will be used as a MoodleData location. 


On all web servers there is mounted glusterFS volume. Configuration of GlusterFS is not very twicked, its here:


Volume Name: gv0

Type: Replicate

Volume ID: e301ec6b-a051-47a1-ab55-4b201325629b

Status: Started

Snapshot Count: 0

Number of Bricks: 1 x 3 = 3

Transport-type: tcp


Brick1: vm1:/data/gluster/gv0

Brick2: vm2:/data/gluster/gv0

Brick3: vm3:/data/gluster/gv0

Options Reconfigured:

server.event-threads: 8

client.event-threads: 8

performance.readdir-ahead: on

performance.write-behind-window-size: 8MB

performance.io-thread-count: 8

performance.cache-size: 2GB

performance.client-io-threads: off

nfs.disable: on

transport.address-family: inet

storage.fips-mode-rchecksum: on

cluster.granular-entry-heal: on


Whan we accessing our Moodle is (in time of loading course) very slow – the time when GlusterFS searching and publishing data.


Please help me to speed up Gluster.


Thank you!


Best, Erik


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