Meaning of terms spark as computing engine and spark cluster

Is spark compute engine only or it's also cluster which comes with set of hardware /nodes ? What exactly is spark clusterr? Dear Experts please help -- Sent from: http://apache-spark-user-list.1001560.n3.nabble.com/ - To unsu

Spark as computing engine vs spark cluster

Is spark compute engine only or it's also cluster which comes with set of hardware /nodes ? What exactly is spark clusterr? -- Sent from: http://apache-spark-user-list.1001560.n3.nabble.com/ - To unsubscribe e-mail: user-unsu