Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Plain View
Zookeeper >> mail # user >> Deployment planning question

Jason Harmon 2012-02-03, 21:01
Copy link to this message
Re: Deployment planning question
what do you want to happen if both datacenters are up, but there is a
partition so that they cannot communicate with each other? answering
that question may get you closer to an answer.

i think your two main options are to:

1) designate a data center that you require to be up for things to
work. then you can put two in that one and one in the other
2) otherwise you need to setup a machine in another datacenter or
amazon instance or something that will in effect decide which data
center can run if one of the datacenters goes down or you are in the
partition scenario above.


On Fri, Feb 3, 2012 at 1:01 PM, Jason Harmon <[EMAIL PROTECTED]> wrote:
> We are planning a ZooKeeper deployment, but are struggling with some aspects of our current architecture. We have two data centers; most applications use load balancing between the two data centers to ensure redundancy for disaster recovery etc. ZooKeeper has been challenging for us, because we can't quite figure out how to structure our servers. We aren't starting with lots of clients, so 3 servers should be a good fit initially. However, if we put two servers in one datacenter, and one server in the other, we're setup for a quorum failure if we have a power outage at the datacenter with two boxes.
> Short of setting up a third data center for our division, what options do we have for deploying ZooKeeper effectively, with disaster recovery in mind etc.
> Thanks!
> Jason Harmon
> Senior Software Architect
Ted Dunning 2012-02-03, 23:52
Benjamin Reed 2012-02-04, 00:19
Jason Harmon 2012-02-04, 20:44
Jason Harmon 2012-02-04, 00:01
Benjamin Reed 2012-02-04, 00:16
Ted Dunning 2012-02-04, 07:23
Jason Harmon 2012-02-06, 13:22