Hi Sage,
I created "erasure code : convenience functions to code / decode"
http://tracker.ceph.com/issues/6064 to implement the suggested functions.
Please let me know if this should be merged with another task.
Cheers
On 19/08/2013 17:06, Loic Dachary wrote:
>
>
> On 19/08/2013 02:01, Sage
On Mon, 19 Aug 2013, Loic Dachary wrote:
>
>
> On 19/08/2013 02:01, Sage Weil wrote:
> > On Sun, 18 Aug 2013, Loic Dachary wrote:
> >> Hi Sage,
> >>
> >> Unless I misunderstood something ( which is still possible at this stage
> >> ;-) decode() is used both for recovery of missing chunks and ret
On 19/08/2013 02:01, Sage Weil wrote:
> On Sun, 18 Aug 2013, Loic Dachary wrote:
>> Hi Sage,
>>
>> Unless I misunderstood something ( which is still possible at this stage ;-)
>> decode() is used both for recovery of missing chunks and retrieval of the
>> original buffer. Decoding the M data ch
Hi Sage,
This makes a lot more sense indeed. I updated the
http://tracker.ceph.com/issues/5878 description accordingly.
ceph osd pool create poolname erasure-code-dir=/var/lib/ceph/erasure-code
erasure-code-plugin=jerasure erasure-code-m=10 erasure-code-k=3
erasure-code-algorithm=Reed-Solomon
Hi Loic,
One other thought on http://tracker.ceph.com/issues/5878:
The user interface there would let you adjust various parameters of the
pool's erasure coding scheme after the pool is created. As a practical
matter, I suspect that many/most of these fields will be specified exactly
once (at
On Sun, 18 Aug 2013, Loic Dachary wrote:
> Hi Sage,
>
> Unless I misunderstood something ( which is still possible at this stage ;-)
> decode() is used both for recovery of missing chunks and retrieval of the
> original buffer. Decoding the M data chunks is a special case of decoding N
> <= M c
Hi Sage,
Unless I misunderstood something ( which is still possible at this stage ;-)
decode() is used both for recovery of missing chunks and retrieval of the
original buffer. Decoding the M data chunks is a special case of decoding N <=
M chunks out of the M+K chunks that were produced by enc
On Sun, 18 Aug 2013, Loic Dachary wrote:
> Hi Ceph,
>
> I've implemented a draft of the Erasure Code plugin loader in the context of
> http://tracker.ceph.com/issues/5878. It has a trivial unit test and an
> example plugin. It would be great if someone could do a quick review. The
> general ide
Hi Ceph,
I've implemented a draft of the Erasure Code plugin loader in the context of
http://tracker.ceph.com/issues/5878. It has a trivial unit test and an example
plugin. It would be great if someone could do a quick review. The general idea
is that the erasure code pool calls something like:
