What will you do when NameNode is down?
Can Apache Kafka be used without Zookeeper?
What are the different Relational Operators available in pig language?
what is Speculative Execution?
Why Mapreduce output written in local disk?
Does Pig support multi-line commands?
Is it possible to split 100 lines of input as a single split in MapReduce?
What is the MapReduce plan in pig architecture?
How can an application connect to Hive run as a server?
what is a datanode?
What are the limitations of importing RDBMS tables into Hcatalog directly?
What are Flume events?
What is the difference between HDFS and NAS ?
What ate the key components of Hive Architecture?
How can you add the arbitrary key-value pairs in your mapper?