What are channel selectors?
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What is the main purpose of HDFS fsck command?
Can we do online transactions(oltp) using hadoop?
Command to format the NameNode?
What does ‘jps’ command do?
Who invented hadoop?
Can you explain how do ‘map’ and ‘reduce’ work?
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
What are the stable versions of Hadoop?
What is a secondary namenode?
What should be the ideal replication factor in Hadoop Cluster?
How to enable/configure the compression of map output data in hadoop?
Is hadoop the future?
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