This is for Hadoop eco system like HDFS, Map reduce, Hive, Hbase, Pig, sqoop,sqoop2, Avro, solr, hcatalog, impala, Oozie, Zoo Keeper and Hadoop distribution like Cloudera, Hortonwork etc.
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Phases for Mappers:
Input Split and Record Reader, Mapper, Combiner and Partitioner.
Phases for Reducers:
Shuffle, Sort and Reducer and Output as per Key Value Type.
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