Introduction to Apache Storm

Apache Storm is used to handle very sensitive applications where even a delay of 1 second can mean huge losses. There are many companies using Storm for fraud detection, building recommendation engines, triggering suspicious activity, and so on. Storm is stateless; it uses Zookeeper for coordinating purposes, where it maintains important metadata information.

Note

Apache Stormis a distributed real-time processing framework which has the ability to process a single event at a time with millions of records being processed per second per node. The streaming data can be bounded or unbounded; in both situations Storm has the capability to reliably process it.  

Storm cluster architecture

Storm also follows the master-slave architecture pattern, where Nimbus is the master and Supervisors are the slaves:

• Nimbus: The master node of Storm cluster. All other nodes in the cluster are called worker nodes. Nimbus distributes data among the worker nodes and also assigns task to...