If I create a folder in HDFS, will there be metadata created corresponding to the folder? If yes, what will be the size of metadata created for a directory?

20

What is the inputsplit in map reduce software?

368

How to copy a file into HDFS with a different block size to that of existing block size configuration?

23

List few benefits of spark over map reduce?

208

Explain the difference between mapreduce engine and hdfs cluster?

36

What are the complicated steps in Flume configurations?

103

What is the problem with small files in Apache Hadoop?

443

What a task tracker is in hadoop?

237

Big Data Engineer Can you explain what REST is?

5

Mention what is the hadoop mapreduce apis contract for a key and value class?

417

What is active and passive NameNode in Hadoop?

243

Hadoop sqoop is which type of tool?

5

Does kafka use hdfs?

294

How does reducebykey work in spark?

177

What is a reliable and unreliable receiver in Spark?

227