Hi Brett,
I think I was wrong here in the requirement description. It is not about data replication , we need same content stored in different object/name.
We store video contents inside the ceph cluster. And our new requirement is we need to store same content for different users , hence need same content in different object name . if client sends write request for object x and sets number of copies as 100, then cluster has to clone 100 copies of object x and store it as object x1, objectx2,etc. Currently this is done in the client side where objectx1, object x2...objectx100 are cloned inside the client and write request sent for all 100 objects which we want to avoid to reduce network consumption.
Similar usecases are rbd snapshot , radosgw copy .
Is this possible in object class ?
thanks,
Muthu
On Mon, Jul 1, 2019 at 7:58 PM Brett Chancellor <bchancellor@xxxxxxxxxxxxxx> wrote:
Ceph already does this by default. For each replicated pool, you can set the 'size' which is the number of copies you want Ceph to maintain. The accepted norm for replicas is 3, but you can set it higher if you want to incur the performance penalty.On Mon, Jul 1, 2019, 6:01 AM nokia ceph <nokiacephusers@xxxxxxxxx> wrote:Hi Brad,Thank you for your response , and we will check this video as well.Our requirement is while writing an object into the cluster , if we can provide number of copies to be made , the network consumption between client and cluster will be only for one object write. However , the cluster will clone/copy multiple objects and stores inside the cluster.Thanks,Muthu_______________________________________________On Fri, Jun 28, 2019 at 9:23 AM Brad Hubbard <bhubbard@xxxxxxxxxx> wrote:On Thu, Jun 27, 2019 at 8:58 PM nokia ceph <nokiacephusers@xxxxxxxxx> wrote:
>
> Hi Team,
>
> We have a requirement to create multiple copies of an object and currently we are handling it in client side to write as separate objects and this causes huge network traffic between client and cluster.
> Is there possibility of cloning an object to multiple copies using librados api?
> Please share the document details if it is feasible.
It may be possible to use an object class to accomplish what you want
to achieve but the more we understand what you are trying to do, the
better the advice we can offer (at the moment your description sounds
like replication which is already part of RADOS as you know).
More on object classes from Cephalocon Barcelona in May this year:
https://www.youtube.com/watch?v=EVrP9MXiiuU
>
> Thanks,
> Muthu
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--
Cheers,
Brad
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