Is Apache spark worth learning?

Related questions

1. What is the difference between Scala and Spark?
2. Which one is better Hadoop or spark?
3. Is Apache Spark part of Hadoop?
4. Is Kafka a Amqp?
5. Does Kafka store data in HDFS?
6. Do data scientist need to know Hadoop?
7. Is spark based on Hadoop?
8. What is the benefit of Kafka?
9. How long will it take to learn Hadoop?
10. What is the difference between Hadoop and Spark?

Tags

1. #hadoop
2. #technology
3. #faster
4. #implementing
5. #apache
6. #analytics
7. #learn
8. #spark
9. #developed
10. #world
11. #about
12. #provide
13. #engine
14. #important
15. #before
16. #today
17. #mapreduce
18. #processing
19. #emerging