Mention what is the number of default partitioner in Hadoop?
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What is the main purpose of HDFS fsck command?
How does a namenode handle the failure of the data nodes?
What is the jobtracker?
What should be the ideal replication factor in Hadoop Cluster?
What is Row Key?
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How the Client communicates with HDFS?
Explain Erasure Coding in Apache Hadoop?
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Name some companies that use Hadoop?
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