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hi Anthony,<br>
Parent directory is directory that contains the file.<br>
<br>
Pranith<br>
<br>
On 09/07/2011 08:18 PM, Anthony Delviscio wrote:
<blockquote
cite="mid:CAKE0inT9MdcfnRfX0xKRZXZbiZAKgxz8C+Tj+UfWnSA3npAVnw@mail.gmail.com"
type="cite">
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charset=windows-1252">
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);">Pranith, by parent directory, do you mean the directory
that contains
the file or the top level directory of the brick?</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);">My gluster volume info:</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);"><a moz-do-not-send="true"
href="http://pastie.org/2493045">http://pastie.org/2493045</a></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);">The hostnames used in the gluster volume info are DNS
hostnames that
resolve to 10GB interfaces on the Gluster nodes.<span style="">
</span></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);">The hostname used in the mount options is a RR DNS
hostname that
resolves to all eight Gluster nodes.</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);">Stat/md5sum/getfattr data of the identical files with
different md5sums.</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);"><a moz-do-not-send="true"
href="http://pastie.org/2497461">http://pastie.org/2497461</a></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; font-family:
"Calibri","sans-serif"; color: rgb(31, 73,
125);">Thank you</span></p>
<br>
<br>
<div class="gmail_quote">On Wed, Sep 7, 2011 at 4:43 AM, Pranith
Kumar K <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:pranithk@gluster.com">pranithk@gluster.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000"> hi Anthony,<br>
Could you send the output of the getfattr -d -m . -e
hex <filepath> on both the bricks and also the stat
output on the both the backends. Give the outputs for its
parent directory also.<br>
<br>
Pranith.
<div>
<div class="h5"><br>
<br>
On 09/07/2011 04:22 AM, Anthony Delviscio wrote: </div>
</div>
<blockquote type="cite">
<div>
<div class="h5">
<div>
<div>
<p class="MsoNormal">I was wondering if anyone
would be able to shed some light on how a file
could end up with inconsistent md5sums on
Gluster backend storage.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Our configuration is running
on Gluster v3.1.5 in a distribute-replicate
setup consisting of 8 bricks.</p>
<p class="MsoNormal">Our OS is Red Hat 5.6 x86_64.<span>
</span>Backend storage is an ext3 RAID 5.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">The 8 bricks are in RR DNS
and are mounted for reading/writing via NFS
automounts.<span> </span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">When comparing md5sums of the
file from two different NFS clients, they were
different.<span> </span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">The extended attributes of
the files on backend storage are identical.<span>
</span>The file size and permissions are
identical.<span> </span>The stat data
(excluding inode on backend storage file system)
is identical.</p>
<p class="MsoNormal">However, running md5sum on
the two files, results in two different md5sums.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Copying both files to another
location/server and running the md5sum also
results in no change – they’re still different.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Gluster logs do not show
anything related to the filename in question.<span>
</span>Triggering a self-healing operation
didn’t seem to do anything and it may have to do
with the fact that the extended attributes are
identical.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">If more information is
required, let me know and I will try to
accommodate.<span> </span></p>
<p class="MsoNormal">Thank you</p>
</div>
</div>
</div>
</div>
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</pre>
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