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Posted to user@zookeeper.apache.org by "abhigyan.sharma" <ab...@gmail.com> on 2013/03/14 14:14:14 UTC
flexible replication
By default each znode is replicated on all zookeper servers.
Is it possible to replicate a znode only at a subset of zookeeper servers?
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Re: flexible replication
Posted by "abhigyan.sharma" <ab...@gmail.com>.
Our system has a policy of replicating each data-item/znode at 3 random
servers out of N servers. We wanted to use Zookeeper for consistency.
-Abhigyan
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Re: flexible replication
Posted by Flavio Junqueira <fp...@yahoo.com>.
For scalability maybe? To me it sounds like a partitioning scheme.
-Flavio
On Mar 14, 2013, at 2:23 PM, Camille Fournier <ca...@apache.org> wrote:
> No. Why do you want to do this?
>
>
> On Thu, Mar 14, 2013 at 9:14 AM, abhigyan.sharma
> <ab...@gmail.com>wrote:
>
>> By default each znode is replicated on all zookeper servers.
>>
>> Is it possible to replicate a znode only at a subset of zookeeper servers?
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://zookeeper-user.578899.n2.nabble.com/flexible-replication-tp7578558.html
>> Sent from the zookeeper-user mailing list archive at Nabble.com.
Re: flexible replication
Posted by Camille Fournier <ca...@apache.org>.
No. Why do you want to do this?
On Thu, Mar 14, 2013 at 9:14 AM, abhigyan.sharma
<ab...@gmail.com>wrote:
> By default each znode is replicated on all zookeper servers.
>
> Is it possible to replicate a znode only at a subset of zookeeper servers?
>
>
>
>
> --
> View this message in context:
> http://zookeeper-user.578899.n2.nabble.com/flexible-replication-tp7578558.html
> Sent from the zookeeper-user mailing list archive at Nabble.com.
Re: flexible replication
Posted by Alexander Shraer <sh...@gmail.com>.
No. You can however define the set of servers which need to acknowledge an
update before it completes. Others will still get the update
asynchronously.
By default a majority needs to ack every update but you can change that
using Hierarchical quorums. For example you can give different servers'
acks different weights, and more.
Alex
On Mar 14, 2013 7:02 AM, "abhigyan.sharma" <ab...@gmail.com>
wrote:
>
> By default each znode is replicated on all zookeper servers.
>
> Is it possible to replicate a znode only at a subset of zookeeper servers?
>
>
>
>
> --
> View this message in context:
http://zookeeper-user.578899.n2.nabble.com/flexible-replication-tp7578558.html
> Sent from the zookeeper-user mailing list archive at Nabble.com.