[OpenAFS] Behavior Changes in XP GUI (and OSX Panther)

Jeffrey Altman jaltman@columbia.edu
Mon, 09 Feb 2004 14:53:09 -0500


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I recommend you file a bug report with Microsoft.  AFS is not the only 
file system
that will suffer due to this behavior. 

Jeffrey Altman


Derrick J Brashear wrote:

>On Mon, 9 Feb 2004, Chris McClimans wrote:
>
>
>>-----BEGIN PGP SIGNED MESSAGE-----
>>Hash: SHA1
>>
>>I still can't find anything worthwhile to fix/address this. So I
>>thought I'd give some simple instructions to recreate the problem and
>>provide fuel for thought.
>>
>
>Your description of the problem was adequate, from a fileserver
>perspective we're behaving correctly. Rewriting a file is not "insert".
>
>The cache manager would need to be excessively clever to avoid the
>problem, basically, recognize it's running as someone with only "insert"
>and avoid flushing the create for some amount of time, and that's evil,
>and stateful.
>
>Perhaps the "right answer" is to use a reserved acl bit for a mode called
>"extend" or "append" ("E" or "A" bit, then, perhaps) which lets you
>strictly extend, but not overwrite or truncate, a file.
>
>_______________________________________________
>OpenAFS-info mailing list
>OpenAFS-info@openafs.org
>https://lists.openafs.org/mailman/listinfo/openafs-info
>

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<font face="Bitstream Cyberbit">I recommend you file a bug report with
Microsoft.&nbsp; AFS is not the only file system <br>
that will suffer due to this behavior.&nbsp; <br>
<br>
Jeffrey Altman<br>
<br>
<br>
Derrick J Brashear wrote:<br>
</font>
<blockquote
 cite="midPine.GSO.4.58-035.0402091436370.19616@johnstown.andrew.cmu.edu"
 type="cite">
  <pre wrap=""><font face="Bitstream Cyberbit">On Mon, 9 Feb 2004, Chris McClimans wrote:

</font></pre>
  <blockquote type="cite">
    <pre wrap=""><font face="Bitstream Cyberbit">-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

I still can't find anything worthwhile to fix/address this. So I
thought I'd give some simple instructions to recreate the problem and
provide fuel for thought.
</font></pre>
  </blockquote>
  <pre wrap=""><!----><font face="Bitstream Cyberbit">
Your description of the problem was adequate, from a fileserver
perspective we're behaving correctly. Rewriting a file is not "insert".

The cache manager would need to be excessively clever to avoid the
problem, basically, recognize it's running as someone with only "insert"
and avoid flushing the create for some amount of time, and that's evil,
and stateful.

Perhaps the "right answer" is to use a reserved acl bit for a mode called
"extend" or "append" ("E" or "A" bit, then, perhaps) which lets you
strictly extend, but not overwrite or truncate, a file.

_______________________________________________
OpenAFS-info mailing list
<a class="moz-txt-link-abbreviated" href="mailto:OpenAFS-info@openafs.org">OpenAFS-info@openafs.org</a>
<a class="moz-txt-link-freetext" href="https://lists.openafs.org/mailman/listinfo/openafs-info">https://lists.openafs.org/mailman/listinfo/openafs-info</a>
</font></pre>
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