[Gluster-devel] Glusterfs the same file but data size is different between server and client

Joe Julian joe at julianfamily.org
Thu Sep 4 02:12:04 UTC 2014

I'm going to reiterate to make sure I understand correctly.

You created a replica 2 volume. Mounted the new volume on a client. 
Copied a directory to the client mountpoint using cp -a (I assume).

Then, on the two bricks, you checked a du -sh for that directory.

If all that is correct, then I'm not really sure. Try a du 
--apparent-size -sh. Perhaps your two filesystems have different block 
sizes causing files that are smaller than a block to use more disk space 
on one than the other?

Perhaps compare sha1sum between the two and see if there are 
differences. There shouldn't be.

On 09/03/2014 07:01 PM, justglusterfs at gmail.com wrote:
> Hi,I create a glusterfs replica volume (replica count is 2 ), and 
>  mount the volume in client,  then  I  copy a dir <linux-kernel>, 
>  when finish copy,
> I  use du command check the dir <linux-kernel> size,  I find the 
>  linux-kernel size is different between server and client,
> As follows:
> check  server  result:
> [root at test-gluster004 vol-replica]# du-shlinux-kernel
>            4.3G              linux-kernel/
> check  client  result:
> [root at test-gluster003 share]# du-shlinux-kernel
>            2.9G              linux-kernel
>  it is observed that same file but data size is different between 
> server and client,  why??
> thanks !
> ------------------------------------------------------------------------
> justglusterfs at gmail.com
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