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Apache Storm Programming Model

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Questions and Answers

What is the primary function of ZooKeeper in a Storm topology?

To process tuples in the topology

To maintain the cluster state and manage configuration (correct)

To monitor the progress and performance of the topology

To assign tasks to available Supervisor nodes

What is the purpose of the SentenceSpout class in the example architecture?

To assign tasks to available Supervisor nodes

To split sentences into words

To monitor the progress and performance of the topology

To emit tuples containing sentences (correct)

What happens when a node failure occurs in a Storm topology?

Nimbus will reassign the tasks to other nodes, utilizing the information from ZooKeeper (correct)

The Supervisor nodes will restart the worker processes

The topology will be redeployed from the beginning

The Storm UI is used to reassign tasks to other nodes

What is the purpose of the Supervisor nodes in a Storm topology?

To start worker processes to execute the tasks Signup and view all the answers

What is the output of the SentenceSpout class in the example architecture?

A stream of single-value tuples containing sentences Signup and view all the answers

What is the role of Nimbus in a Storm topology?

To create tasks for each spout and bolt and assign them to available Supervisor nodes Signup and view all the answers

What is the purpose of the Blot1: Split Sentence Bolt in the example architecture?

To split sentences into words Signup and view all the answers

What is the primary data source used in the example architecture?

A static list of sentences Signup and view all the answers

What is the purpose of the Storm UI in a Storm topology?

To monitor the progress and performance of the topology in real-time Signup and view all the answers

What is the output of the Blot1: Split Sentence Bolt in the example architecture?

A stream of single-value tuples containing words Signup and view all the answers