[ovirt-users] gluster performance oVirt 3.4

[Vadims Korsaks]

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 at 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 at inbox.lv> wrote:
>  
>  Citējot Vijay Bellur <vbellur at 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 at 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 at 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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