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From Devaraj Das <>
Subject Re: [DISCUSSION] Cluster blue print concept
Date Tue, 10 Jul 2012 05:39:52 GMT
For the uninitiated, here is what I remember about blueprint:
Blueprint was a concept for describing cluster configurations (including repositories, stack
definitions and individual component configurations). Blueprints would be versioned, and,
one could inherit from a blueprint, etc. to define/override properties. For example, Ambari
could ship with a default blueprint which defines config values/properties that are appropriate
to the best of the Ambari developer's knowledge. In the production site, one could inherit
that blueprint and only override certain properties with site specific values.
Attached a sample blueprint json file that inherits from another blueprint, and selectively
overrides a property in the namenode config..

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