Wherever (Different Directory) I run the hive query, it creates new metastore_db, please explain the reason for it?
mapper or reducer?
what is the maximum size of the message does Kafka server can receive?
Explain what is kafka?
List out the various advantages of dataframe over rdd in apache spark?
What does MLlib do?
What is the difference between hadoop and other data processing tools?
Can you define udf?
Name some internal daemons used in spark?
What is spark mapvalues?
What is a bag in Pig Latin?
Is spark a mapreduce?
In Hive, can you overwrite Hadoop MapReduce configuration in Hive?
Explain what is a consumer group?