What is Spark SQL?

306

---

Can you explain how to minimize data transfers while working with Spark?

539

---

What are the ways to launch Apache Spark over YARN?

283

---

is it necessary to install Spark on all nodes while running Spark application on Yarn?

303

---

What is a worker node in Apache Spark?

301

---

What is worker node in Apache Spark cluster?

300

---

What is action, how it process data in apache spark

335

---

What is sparkContext?

284

---

Name various types of Cluster Managers in Spark.

347

---

How much faster is Apache spark than Hadoop?

294

---

Difference between groupByKey vs reduceByKey in Apache Spark?

470

---

How you can use Akka with Spark?

360

---

Name three features of using Apache Spark

289

---

How to start and stop spark in interactive shell?

344

---

To use Spark on an existing Hadoop Cluster, do we need to install Spark on all nodes of Hadoop?

358

---