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

[justglusterfs at gmail.com]

Hi  Joe Julian
     thank  you very much， according to you advice，  I use command du --apparent-size -sh get result as  follow：
      
As follows：

check  server  result：
        [root at test-gluster004 vol-replica]# du  --apparent-size  -sh  linux-kernel
           2.9G              linux-kernel

check  client  result：
        [root at test-gluster003 share]# du --apparent-size  -sh  linux-kernel
           2.9G              linux-kernel


thank  you  very  much



justglusterfs at gmail.com
 
From: Joe Julian
Date: 2014-09-04 10:12
To: gluster-devel
Subject: Re: [Gluster-devel] Glusterfs the same file but data size is different between server and client
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  -sh  linux-kernel
           4.3G              linux-kernel/

check  client  result：
        [root at test-gluster003 share]# du  -sh  linux-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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