Subject: Re: [netatalk-admins] Subtle file corruption
From: Palle Girgensohn (girgen@partitur.se)
Date: Thu Mar 18 1999 - 21:44:41 EST
Hi!
did you remove the cr/lf conversion? if the files are defined as TEXT,
it will get you into trouble.
/Palle
Yuji Shinozaki wrote:
>
> server: Sun Sparc 5 / SunOS 2.5.1 / netatalk-2.1.1
> clients: MacOS 8.1 via Appleshare 3.8.1 (using ASIP)
>
> I have run into a strange problem copying files from a netatalk volume:
>
> We use RevRdist to maintain our clusters. I recently moved the source
> volumes from an Appleshare 4.2.1 server to our netatalk server, to take
> advantage of ASIP. The performance increase was astounding. [ A detail
> that I should point out which may or may not be significant is that
> RevRDist will normally mount things via AFP every time, so to "force" it
> to use ASIP I use an applescript "wrapper" to do the ASIP mount and then
> run RevRDist ].
>
> However, we ran into a problem which I can only attribute to file
> corruption: Certain programs (specifically Labview 4.x and Mathematica
> 3.0.1) are adversely affected by being copied from the netatalk volume.
> In the case of Labview 4, specific Labview libraries don't ever load, and
> in the case of Mathematica 3.0.1 the mathkernel always reports an "Out of
> Memory" error. Using the EXACT set of source files on our old AS 4.2.1
> via AFP (since it cannot do ASIP) works fine.
>
> Further evidence: if I copy the installer disks to a netatalk volume,
> and do an install from the ASIP mounted volume, it exhibits the exact
> same problem (so now RevRDist is out of the equation), BUT when I put the
> installer on a volume mounted on our newly-acquired ASIP6.1 server, the
> installation works fine.
>
> It would appear that even the installer files are getting corrupted either
> on copying to or from the netatalk volume.
>
> [ It just occurred to me that I am not sure whether I have tried the
> installation using netatalk via AFP. Perhaps that might tell me if the
> assumed occurs in transport or storage. Maybe something for me to
> investigate. ]
>
> My questions:
>
> 1) Has anyone noticed similar behavior? Anyone know what the
> problem/solution is?
>
> 2) Does anyone know of a mac application that does bitwise compares or
> file checksums, so that I can pinpoint the file/s that are getting
> corrupted.
>
> 3) Anyone have a suggestion for debuggin this problem? Perhaps I might
> try a newer version of netatalk. Wasn't there a change in the way the
> AppleDouble info is stored recently?
>
> Thanks for your time and sage advice...
> yuji
> ----
> Yuji Shinozaki Systems Administrator
> yuji@physics.unc.edu Dept of Physics and Astronomy
> http://www.physics.unc.edu Univ. of North Carolina - CH
> (919)962-7214 (voice) CB 3255 Philips Hall
> (919)962-0480 (fax) Chapel Hill, NC 27599
This archive was generated by hypermail 2b28 : Sat Dec 18 1999 - 16:16:28 EST