Hadoop Interview questions


Total available count: 27
Subject - Apache
Subsubject - Hadoop

Please define executors in detail?

Executors have distributed agents in charge of/responsible for executing tasks. Executors provide in-memory storage for RDDs that are cached in Spark applications. When executors are started they register themselves with the driver and communicate directly to execute the tasks. 




Next 5 interview question(s)

1
Please explain, how workers work, when a new Job submitted to them?
2
What are the workers?
3
What is the purpose of Driver in Spark Architecture?
4
Define Spark architecture?
5
What is checkpointing?