Underlying FS is XFS GlusterFS - glusterfs-3.5.0-2.el6 I'm using CentOS, if this is problem could RHEL packages be used? why CentOS packages are compiled without native glusterfs support? Citējot Paul Robert Marino <prmarino1@gmail.com> :
What's the underlying filesystem for gluster is it XFS? What version of gluster are you using? What distro are you using and if its not RHEL or Fedora are you using a version of QEMU with gluster support compiled in keep in mind the versions with CentOS and Scientific Linux do not include Gluster native support compiled in.
-- Sent from my HP Pre3
On May 11, 2014 5:40, Vadims Korsaks <truckk@inbox.lv> wrote:
Citējot Vijay Bellur <vbellur@redhat.com> :
On 05/11/2014 02:04 AM, Vadims Korsaks wrote:
HI!
Created 2 node setup with oVirt 3.4 and CentOS 6.5, for storage created 2 node replicated gluster (3.5) fs on same hosts with oVirt. mount looks like this: 127.0.0.1:/gluster01 on
/rhev/data-center/mnt/glusterSD/127.0.0.1:_gluster01
type fuse.glusterfs
(rw,default_permissions,allow_other,max_read=131072)
when i making gluster test with dd, something
like
dd if=/dev/zero bs=1M count=20000
of=/rhev/data-center/mnt/glusterSD/127.0.0.1\:_gluster01/kaka
i'm gettting speed ~ 110 MB/s, so this is 1Gbps speed of ethernet adapter
but with in VM created in oVirt speed is lower than 20 MB/s
why there is so huge difference? how can improve VMs disks speed?
What are your gluster volume settings? Have you applied the following performance tunables in gluster's virt profile:
eager-lock=enable remote-dio=enable
Regards, Vijay
setting were: [root@centos155 ~]# gluster volume info gluster01
Volume Name: gluster01 Type: Replicate Volume ID: 436edaa3-ac8b-421f-aa35-68b5bd7064b6 Status: Started Number of Bricks: 1 x 2 = 2 Transport-type: tcp Bricks: Brick1: 10.2.75.152:/mnt/gluster01/brick Brick2: 10.2.75.155:/mnt/gluster01/brick Options Reconfigured: storage.owner-gid: 36 storage.owner-uid: 36
add your settings settings now it looks
[root@centos155 ~]# gluster volume info gluster01
Volume Name: gluster01 Type: Replicate Volume ID: 436edaa3-ac8b-421f-aa35-68b5bd7064b6 Status: Started Number of Bricks: 1 x 2 = 2 Transport-type: tcp Bricks: Brick1: 10.2.75.152:/mnt/gluster01/brick Brick2: 10.2.75.155:/mnt/gluster01/brick Options Reconfigured: network.remote-dio: enable cluster.eager-lock: enable storage.owner-gid: 36 storage.owner-uid: 36
but this didn't affected performace in any big way should hosts to be restarted?
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