[Gluster-users] different size of file in replicated volume using sparse file

[Pranith Kumar Karampuri]

On 06/05/2014 02:52 PM, Marco Agostini wrote:
> Hi,
>
> I'm using Gluster 3.4.2 to manage qcow2 file used by some virtual machines.
>
> I'm using Proxmox as virtualization system (3 node) with 2 gluster
> external server (san1 and san2).
>
> I'm storing the .qcow2 file (virtual image of virtual server) to gluster.
>
> The .qcow2 are sparse file.
>
> These the configuration of the volume:
> # gluster volume info glusterb1
>
> Volume Name: glusterb1
> Type: Replicate
> Volume ID: 76106c18-e7eb-4f02-bd86-cb90d41d8960
> Status: Started
> Number of Bricks: 1 x 2 = 2
> Transport-type: tcp
> Bricks:
> Brick1: san1:/glusterfs2/glusterb1
> Brick2: san2:/glusterfs2/glusterb1
>
> These the mountpoint on my Proxmox (3 node):
> san1:/glusterb1 on /mnt/pve/glusterb1 type fuse.glusterfs
> (rw,relatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072)
>
> Everything seems to work correctly, but when I try to check the size
> of the .qcow2 file on every gluster node, the dimensions do not match:
>
> # ssh root at san1 du /glusterfs2/glusterb1/images/119 && ssh root at san2
> du /glusterfs2/glusterb1/images/119
> 19124304        /glusterfs2/glusterb1/images/119
> 19124108        /glusterfs2/glusterb1/images/119
>
> 19124304 the file dimension on san1
> 19124108 the file dimension on san2
Do you think a self-heal could have happened on this file at any point?

Pranith
>
> The volume are not in split-brain mode:
> # gluster volume heal glusterb1 info split-brain
> Gathering Heal info on volume glusterb1 has been successful
>
> Brick san1:/glusterfs2/glusterb1
> Number of entries: 0
>
> Brick san2:/glusterfs2/glusterb1
> Number of entries: 0
>
>
> Is it possible that the two files on two nodes Gluster, have different
> sizes ? or something is not working ?
>
> sorry for my poor english
> thank you very much
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