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Real-time Analytics with Storm and Cassandra by Shilpi Saxena

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Executing the topology in the distributed mode

To set up Storm in distributed mode, we will need to perform the following steps.

Set up Zookeeper (V 3.3.5) for Storm

The coordination of a Storm topology is maintained by a Zookeeper cluster. The utilization of Zookeeper is not very high, as it just maintains the runnable state of the Storm cluster. In most cases, a single Zookeeper node should suffice, but in production scenarios, at least a three-node Zookeeper cluster is recommended so that a single node doesn't become a single point of failure.

For reliable Zookeeper service, deploy Zookeeper in a cluster known as an ensemble. As long as the majority of the ensemble is up, the service will be available. One of the nodes in the ensemble is automatically ...

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