What is the difference between HDFS block and input split?
Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?
How would you tackle calculating the number of unique visitors for each hour by mining a huge apache log? You can use post processing on the output of the mapreduce job.
In Map Reduce why map write output to Local Disk instead of HDFS?
What are mapreduce new and old apis while writing map reduce program?. Explain how it works
In Hadoop what is InputSplit?
What is streaming?
What is the Job interface in MapReduce framework?
List the network requirements for using Hadoop ?
what is WebDAV in Hadoop?
What do you understand by mapreduce?
What is OutputCommitter?
What is the best way to copy files between HDFS clusters?