Hadoop MapReduce and Hadoop Distributed File System (HDFS)

Task:

• Count of words in a text file that starts with 'a'
• Indentifying prime numbers in a list of numbers

Features:

• Hadoop
• Map-Reduce
• HDFS

Questions:

Word Count: calculate the frequency of the words in a text file:

code:

input:

output:

wordcount for words starting with 'a':

code:

input:

output:

Prime number:

code:

input:

output: