Real World Use of Zookeeper

java configuration apache-zookeeper distributed
Jon picture Jon · Sep 25, 2009 · Viewed 58.5k times · Source

I've been looking at Zookeeper recently and wondered whether anybody was using it currently and what they were specifically using it for storing.

The most common use case is for configuration information, but what kind of data and how much data are you storing?

Answer

SquareCog picture SquareCog · Sep 26, 2009

HBase uses Zookeeper for coordinating activities its "head node" was responsible for prior to the current version. The move to using Zookeeper means the central control is no longer a single point of failure.

Zookeeper is very versatile; here is an example of using it to build a distributed concurrent queue:

http://blog.cloudera.com/blog/2009/05/building-a-distributed-concurrent-queue-with-apache-zookeeper/

You can of course also use it to create resource locks, etc, in a distributed system.

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