Big Data Analytics
mapreduce
input-output
hdfs
record-reader
input-format
output-format
Understanding Inputs and Outputs of MapReduce
MapReduce program mein input raw data hota hai jo HDFS mein store kiya jata hai. Input Splits, Input Format aur Record Reader data ko Mapper tak le jaate hain. Processing ke baad Reducer final output generate karta hai jo Output Format ke through HDFS mein save hota hai.