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From Mikael Sitruk <mikael.sit...@gmail.com>
Subject Re: Small cluster setup
Date Tue, 19 Jun 2012 20:45:56 GMT
you should not put ZK server on the RS or data nodes, since you don't want
their work to interfere ZK responsiveness.
You can put ZK on any lightweigth server like HMaster, NN.
I use almost same configuration as yours: 10 Region Server + DataNode+ Task
Tracker, 1HMaster + ZK, 1NameNone + JobTracker + ZK, 1 ZK alone.


On Tue, Jun 19, 2012 at 11:27 PM, Bryan Keller <bryanck@gmail.com> wrote:

> I have a small cluster with 10 nodes. 8 nodes are datanodes/regionservers,
> and 2 nodes are running HA namenodes and HMaster. The question I have is,
> what would be the best way to configure Zookeeper in my cluster? Currently
> I have it running on one of the HMaster nodes. Running an instance on the
> other HMaster node seems somewhat pointless as I need at least 3 nodes for
> failover. Should I run Zookeeper on the other HMaster node and a 3rd
> Zookeeper on one of the regionservers? What are the performance
> implications of running Zookeeper on a regionserver?

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