Why MapReduce is slower than the other processing frameworks is a common question. When it comes to data processing, it is batch-oriented. The mapper and
HDFS Questions and Answers-2
Is it good practice to use HDFS for small data files? Since NameNode is a pricey high performance device, using HDFS for numerous little files
HDFS Questions and Answers-1
What is HDFS? HDFS, or Hadoop Distributed File System, is a distributed file system that runs on commodity hardware. HDFS, or Hadoop Distributed File System,
hdfs dfs vs hadoop fs
Most people used to think that the shell commands hdfs dfs and hadoop fs were interchangeable. They list the directories’ contents in question. But there
It’s all about Map Reduce – Part-2
Click here for the previous part. Reducer Phase: Record writers, a function in the reducer phase of processing, take the output from the mapper phase
It’s all about Map Reduce – Part-1
Big Data definition: Big data is defined as data with increased variety, arriving in increasing volumes, with incredible velocity, a high degree of variability, and veracity, all of which
Big Data & SQL 