How can you overwrite the replication factors in HDFS?
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What is partioner in hadoop? Where does it run,mapper or reducer?
Explain what if rack 2 and datanode fails?
What is inputformat in hadoop?
What is Schema on Read and Schema on Write?
What is a namenode? How many instances of namenode run on a hadoop cluster?
Define a daemon?
Are Namenode and job tracker on the same host?
What happens to job tracker when namenode is down?
What is NoSQL?
What are sink processors?
Can Hadoop be compared to NOSQL database like Cassandra?
Is fs.mapr.working.dir a single directory?
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