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From Jason Harmon <jh0...@att.com>
Subject RE: Deployment planning question
Date Mon, 06 Feb 2012 13:22:49 GMT
So I tried out the 'mirrored' option last night. I setup one box as a standalone, with the
intention of an observer as a second box. Unfortunately it complained that there was no quorum.
In looking through the ZK code, it's apparent it expects to support observers only when there
is an active ensemble (3 or more servers). 

Here's the thing: I'm only looking to use leader election for an app at this point, with some
potential to store configuration data and some small coordination data between a few applications.
Our IT requirements demand I have total redundancy in two datacenters for disaster recovery
planning. The more I look at this, the more I think ZooKeeper is beautifully elegant in terms
of code/usage, but the deployment aspect just isn't fitting.

-----Original Message-----
From: Ted Dunning [mailto:ted.dunning@gmail.com] 
Sent: Saturday, February 04, 2012 1:24 AM
To: user@zookeeper.apache.org
Subject: Re: Deployment planning question

> You can do that.  Just define the mirror as an observer.

<snip>

>> corporate security restrictions. It sure would be nice for a 
>> smaller-scale deployment to just have a simple mirrored option, as 
>> opposed to the mandatory 3 server/quorum requirement.
>>

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