[sheepdog-users] Vdi corruption with erasure code if n nodes < x

[Andrew J. Hobbs]

Likely.  In production, we have 8 servers and use copies=3.  Generally, 
we have not experienced corruption.  I suspect there are some corner 
cases when you drop below the minimum copies number where the recovery 
fails. Certainly we know there are a couple of issues in recovery in 
regards to erasure encoding to be fixed.

On 10/09/2014 06:05 AM, Micha Kersloot wrote:
> Hi,
>
> ----- Original Message -----
>> From: "Valerio Pachera" <sirio81 at gmail.com>
>> To: "Lista sheepdog user" <sheepdog-users at lists.wpkg.org>
>> Sent: Tuesday, October 7, 2014 5:06:23 PM
>> Subject: Re: [sheepdog-users] Vdi corruption with erasure code if n nodes < x
>>
>> 2014-10-07 15:32 GMT+02:00 Hitoshi Mitake <mitake.hitoshi at gmail.com>:
>>> It doesn't works because of some bugs.
>>> I'll fix it so halting cluster or freezing VDIs wouldn't be required.
>>> # I'm on a business trip to U.S. so my reply and development is delaying,
>>> sorry
>> Thank for the update.
> would this explain the problems I have as f.e.:
>   10.4 % [=========>                                                                                     ] 10 GB / 100 GB     object cb7f6400000a6b is inconsistent
>
> while I'm testing some failure scenarios? Somehow I seems very easy for me to end with corrupted vdi's.
>
> Met vriendelijke groet,
>
> Micha Kersloot

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