Re: erasure pool with isa plugin

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On Mon, Jun 22, 2015 at 10:34 PM, Loic Dachary <loic@xxxxxxxxxxx> wrote:
> Hi Tom,
>
> On 22/06/2015 17:10, Deneau, Tom wrote:
>> If one has a cluster with some nodes that can run with the ISA plugin
>> and some that cannot, is there a way to define a pool such that the
>> ISA-capable nodes can use the ISA plugin and the others can use say
>> the jerasure plugin?
>
> There is no way to do that, because there is no guarantee that an object encoded by jerasure can be decoded by isa and vice versa.

Shouldn't we be able to set up something that *does* guarantee that,
though? Either by combining them into a single plugin which
dynamically configures to the fastest possible for that machine, or by
running them against the same object corpus and requiring that they
produce the same output?
-Greg
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