What are the machine learning algorithms supports in apache mahout?

115

What is the difference between kafka and flume?

85

What is Grunt shell?

579

What operations does rdd support?

278

What language is apache spark?

288

Name some Complex types of Data types, Avro Supports?

54

What happen on the namenode when a client tries to read a data file?

461

What does the command mapred.job.tracker do?

777

Is it possible to provide multiple input to Hadoop? If yes then how can you give multiple directories as input to the Hadoop job?

430

Data Engineer Given a list of followers in the format:123, 345234, 678345, 123…Where column one is the ID of the follower and column two is the ID of the followee. Find all mutual following pairs (the pair 123, 345 in the example above). How would you use Map/Reduce to solve the problem when the list does not fit in memory?

748

What is secondary namenode?

54

Specify the different methods of hive?

723

How to write a custom partitioner for a Hadoop MapReduce job?

652

What is salting in spark?

415

what is the traditional method of message transfer?

676