[Gluster-users] Fwd: FileSize changing in GlusterNodes

Vijay Bellur vbellur at redhat.com
Mon Aug 26 06:23:04 UTC 2013

File size as reported on the mount point and the bricks can vary because 
of this code snippet in iatt_from_stat():

                 uint64_t maxblocks;

                 maxblocks = (iatt->ia_size + 511) / 512;

                 if (iatt->ia_blocks > maxblocks)
                         iatt->ia_blocks = maxblocks;

This snippet was brought in to improve accounting behaviour for quota 
that would fail with disk file systems that perform speculative 

If this aides only specific use cases, I think we should make the 
behaviour configurable.



-------- Original Message --------
Subject: 	[Gluster-users] FileSize changing in GlusterNodes
Date: 	Wed, 21 Aug 2013 05:35:40 +0000
From: 	Bobby Jacob <bobby.jacob at alshaya.com>
To: 	gluster-users at gluster.org <gluster-users at gluster.org>


When I upload files into the gluster volume, it replicates all the files
to both gluster nodes. But the file size slightly varies by (4-10KB),
which changes the md5sum of the file.

Command to check file size : du –k *. I’m using glusterFS 3.3.1 with
Centos 6.4

This is creating inconsistency between the files on both the bricks. ?
What is the reason for this changed file size and how can it be avoided. ?

Thanks & Regards,

*Bobby Jacob*

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