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From Rakesh Rajan <rakes...@gmail.com>
Subject Zookeeper v/s hardware loadbalancer
Date Sat, 13 Aug 2011 04:49:54 GMT
I've been looking at Zookeeper recently and wondered how it compares with a
hardware loadbalancer for the following usecases:

1) Service discovery
- Using ZooKeeper, the server would register itself on a common znode which
can be looked up by the client to get a list of registered servers.
- Using H/W loadbalancer, I can have couple of server IPs behind a VIP name
and the client is only aware of the VIP address.

2) Load balancing
- Using ZooKeeper, the load-balancing happens at the client side. (
connection is directly made from the client to the server )
- Using H/W LB, the load-balancing happens at the load-balancer side ( and
hence the connection is routed via LB)

So for the above 2 usescase, are there any specific advantages in using
ZooKeeper over a H/W load-balancer?

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