[Gluster-devel] BitRot notes
Nagaprasad Sathyanarayana
nsathyan at redhat.com
Thu Nov 6 15:29:02 UTC 2014
Interesting use case. Can AFR also use bit rot detection and heal from a good copy (if possible)?
Thanks
Naga
> On 06-Nov-2014, at 8:48 pm, Alok Srivastava <asrivast at redhat.com> wrote:
>
> Thanks Venky for sharing the details.
> I have included Pranith and Atin for a specific question:
>
> With current implementation of erasure coding, Do we have the capability of detecting and correcting bit rot?
>
> Let's say we have fragments of a file on multiple bricks and a read request is sent to the bricks, a brick doesn't respond as it may have disk(s) damaged by bit rot or any other failure. Will EC detect and correct bit rot in this case?
>
> Regards
> Alok
>
>
> ----- Original Message -----
> From: "Venky Shankar" <vshankar at redhat.com>
> To: gluster-devel at gluster.org
> Cc: "Vijay Bellur" <vbellur at redhat.com>, "Ric Wheeler" <rwheeler at redhat.com>, "Alok Srivastava" <asrivast at redhat.com>, "Raghavendra Bhat" <rabhat at redhat.com>
> Sent: Friday, October 31, 2014 4:09:03 PM
> Subject: BitRot notes
>
> Hey folks,
>
> Myself and Raghavendra (@rabhat) have been discussing about BitRot[1]
> and came up with a list of high level tasks (breakup items) captured
> here[2]. The pad will be updated on an ongoing basis reflecting the
> current status/items that are being worked on. As always, contributions
> in any form (design, code, doc, etc..) are more than welcome (just make
> sure you're heard on the pad/email :))
>
> [1]:
> http://www.gluster.org/community/documentation/index.php/Features/BitRot
> [2]: https://public.pad.fsfe.org/p/glusterfs-bitrot-notes
>
> Thanks,
> venky
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