Storm is a distributed computation framework written predominantly in the Clojure programming language. Originally created by Nathan Marz and team at BackType, the project was open sourced after being acquired by Twitter. It uses custom created “spouts” and “bolts” to define information sources and manipulations to allow batch, distributed processing of streaming data. The initial release was on September 17, 2011.
A Storm application is designed as a topology of interfaces which create a “stream” of transformations. It provides similar functionality as a MapReduce job with the exception that the topology will theoretically run indefinitely until it is manually terminated.
In 2013 the Apache Software Foundation has accepted Storm into its incubator program.
Apache Storm google

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