[OpenAFS] possible microsoft excel 2010 corruption issue on openafs volumes

Wed, 7 Dec 2011 19:23:50 -0500

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there's an issue in the 1.6.0 fileserver but if you are also having it on 1.=
4.14 that's new

Derrick

On Dec 7, 2011, at 19:19, Jonathan Nilsson <jnilsson@uci.edu> wrote:

> Hello,
>=20
> We've had some strange file corruption and missing data issues with Micros=
oft Excel 2010 on a Windows 7 OpenAFS 1.5.78 client.
>=20
> 1) A user creates an Excel file on their local drive, then copies it to an=
 AFS RW mount point (via mapped network drive).
> 2) several clients read the file (no changes made)
> 3) at some point the file is no longer able to be opened, or it opens but w=
arns of corruption and missing data
>=20
> When I recover the file from the backup on the day of the file's modificat=
ion timestamp, the restored file is fine. Curiously, the restored file appea=
rs identical to the corrupted file: the file size (bytes) and timestamp are i=
dentical.
>=20
> The fileservers housing volumes where this has happened are:
>  CentOS 6.0 2.6.32-71.29.1.el6.x86_64 with OpenAFS 1.6.0
>  RHEL 6.1 2.6.32-131.2.1.el6.x86_64 with OpenAFS 1.4.14
>=20
> We have upgraded the client to OpenAFS 1.7.2 (we did this just before the 1=
.7.3 announcement) hoping to fix the issue if it is a bug... Is there any kn=
own issue with 1.5.78 client that could have caused corruption like this?
>=20
> --=20
> Jonathan.Nilsson at uci dot edu
> Social Sciences Computing Services
> SSPB 1265 | 949.824.1536
>=20

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<html><body bgcolor="#FFFFFF"><div>there's an issue in the 1.6.0 fileserver but if you are also having it on 1.4.14 that's new<br><br>Derrick<div><br></div></div><div><br>On Dec 7, 2011, at 19:19, Jonathan Nilsson &lt;<a href="mailto:jnilsson@uci.edu">jnilsson@uci.edu</a>&gt; wrote:<br><br></div><div></div><blockquote type="cite"><div>Hello,<div><br></div><div>We've had some strange file corruption and missing data issues with Microsoft Excel 2010 on a Windows 7 OpenAFS 1.5.78 client.</div><div><br></div><div>1) A user creates an Excel file on their local drive, then copies it to an AFS RW mount point (via mapped network drive).</div>

<div>2) several clients read the file (no changes made)</div><div>3) at some point the file is no longer able to be opened, or it opens but warns of corruption and missing data</div><div><br></div><div>When I recover the file from the backup on the day of the file's modification timestamp, the restored file is fine. Curiously, the restored file appears identical to the corrupted file: the file size (bytes) and timestamp are identical.</div>

<div><br></div><div>The fileservers housing volumes where this has happened are:</div><div>&nbsp;CentOS 6.0 2.6.32-71.29.1.el6.x86_64 with OpenAFS 1.6.0</div><div>&nbsp;RHEL 6.1 2.6.32-131.2.1.el6.x86_64 with OpenAFS 1.4.14</div><div>

<br></div><div>We have upgraded the client to OpenAFS 1.7.2 (we did this just before the 1.7.3 announcement) hoping to fix the issue if it is a bug...&nbsp;Is there any known issue with 1.5.78 client that could have caused corruption like this?</div>

<div><div><br></div>-- <br><div><font face="'courier new', monospace">Jonathan.Nilsson at uci dot edu</font></div><div><font face="'courier new', monospace">Social Sciences Computing Services</font></div>
<div>
<span style="font-family:'courier new', monospace">SSPB 1265 | 949.824.1536</span></div><br>
</div>
</div></blockquote></body></html>
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