Explain what is the purpose of RecordReader in Hadoop?
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What is the main purpose of HDFS fsck command?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
Mention what is the number of default partitioner in Hadoop?
What are different types of filesystem?
What's the best way to copy files between HDFS clusters?
What happens to a namenode, when job tracker is down?
What do the master class and the output class do?
What is the jobtracker?
how to share the metastore within multiple users?
What is salary of hadoop developer?
What is Distributed Cache?
explain Metadata in Namenode?
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