What is configured in /etc/hosts and what is its role in setting Hadoop cluster?
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What is heartbeat in hadoop?
What is TaskTracker?
Why cloudera is used?
What does the mapred.job.tracker command do?
Explain InputSplit in Hadoop?
What is the default replication factor in Hadoop and how will you change it?
What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
What is a record reader?
List of the some best tools that can be useful for data-analysis?
How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
What are the network requirements for hadoop?
What is pseudo-distributed mode?
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