[Gluster-devel] IMPORTANT: AFR Users

[Brandon Lamb]

On Fri, May 9, 2008 at 2:53 PM, Anand Babu Periasamy <ab at gnu.org.in> wrote:
> RACE CONDITION IN AFR:
> ----------------------
> * Who is affected?
> If you are using AFR in a multi-user environment and your applications
> are writing to common files without locks, there is a possibility
> CORRUPTION.
>
> GlusterFS is expected to write atomically across replicated volumes
> when the files are opened with O_APPEND mode, irrespective of locks.
> Fix in works will ensure all writes to be atomic always. We will
> make an announcement shortly.
>
> Thanks to Gordan Bobic and Martin Fick for identifying this bug.
>
> --
> Anand Babu Periasamy
> GPG Key ID: 0x62E15A31
> Blog [http://ab.freeshell.org]
> The GNU Operating System [http://www.gnu.org]
> Z RESEARCH Inc [http://www.zresearch.com]
>
>
>
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Is corruption the correct word here, or would it be more accurate to
say "inconsistent"? I suppose it is a point of view.

It is just that to me corruption means the data in my files is
unusable, which is slightly different than the data is "good" on both
copies, they just are not the SAME. I could still at least pick one to
use, whereas corruption to means I have no good data.

Unimportant maybe but corruption might freak people out a little more

=P