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Posted to user@curator.apache.org by Check Peck <co...@gmail.com> on 2014/02/05 08:28:43 UTC

Master and Slave feature using CURATOR?

I have a three node Zookeeper cluster. Let' say three nodes for Zookeeper
are -

    NodeA
    NodeB
    NodeC

And all these three zookeeper nodes are in same DATACENTER. Now I have
couple more machines, let's say I have 6 more machines which are my APP
SERVERS and all these six machines will be connecting to above three node
Zookeeper cluster.

Now is there any way, I can have MASTER, SLAVE feature in my six APP
SERVERS. I want only one to be MASTER out of six app servers and that
master only should perform actions always.

Is this possible to do it using curator?

Re: Master and Slave feature using CURATOR?

Posted by Flavio Junqueira <fp...@yahoo.com>.

Hi Check,

Could you ask this question on the curator list, please?

-Flavio

On 05 Feb 2014, at 07:28, Check Peck <co...@gmail.com> wrote:

> I have a three node Zookeeper cluster. Let' say three nodes for Zookeeper
> are -
> 
>    NodeA
>    NodeB
>    NodeC
> 
> And all these three zookeeper nodes are in same DATACENTER. Now I have
> couple more machines, let's say I have 6 more machines which are my APP
> SERVERS and all these six machines will be connecting to above three node
> Zookeeper cluster.
> 
> Now is there any way, I can have MASTER, SLAVE feature in my six APP
> SERVERS. I want only one to be MASTER out of six app servers and that
> master only should perform actions always.
> 
> Is this possible to do it using curator?

Re: Master and Slave feature using CURATOR?

Posted by Cameron McKenzie <mc...@gmail.com>.

Yes, look at the leader latch recipe
On 05/02/2014 6:29 PM, "Check Peck" <co...@gmail.com> wrote:

> I have a three node Zookeeper cluster. Let' say three nodes for Zookeeper
> are -
>
>     NodeA
>     NodeB
>     NodeC
>
> And all these three zookeeper nodes are in same DATACENTER. Now I have
> couple more machines, let's say I have 6 more machines which are my APP
> SERVERS and all these six machines will be connecting to above three node
> Zookeeper cluster.
>
> Now is there any way, I can have MASTER, SLAVE feature in my six APP
> SERVERS. I want only one to be MASTER out of six app servers and that
> master only should perform actions always.
>
> Is this possible to do it using curator?
>