Is it necessary to write jobs for hadoop in the java language?
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How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
What is Hadoop Custom partitioner ?
What is HDFS Federation?
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
Explain the use of tasktracker in the hadoop cluster?
How many maximum jvm can run on a slave node?
What is version-id mismatch error in hadoop?
How can I install Cloudera VM in my system?
What is compute and Storage nodes?
Explain what happens in textinformat ?
Explain the use of .mecia class?
Is a job split into maps?