What is salary of hadoop developer?
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how would you modify that solution to only count the number of unique words in all the documents?
What Mapper does?
Does the hdfs client decide the input split or namenode?
What is the default block size in hdfs?
How does an hadoop application look like or their basic components?
How many JVMs run on a slave node?
How many Daemon processes run on a Hadoop system?
How can you overwrite the replication factors in HDFS?
What are the benefits of block transfer?
how can we change Replication Factor?
Should we use RAID in Hadoop or not?
What do shuffling do?
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