explain Metadata in Namenode?
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What is Hadoop serialization?
Is hadoop based on google mapreduce?
Is secondary namenode a substitute to the namenode?
Can we have multiple entries in the master files?
What do you know by storage and compute node?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
Can Apache Kafka be used without Zookeeper?
What is zookeeper in hadoop?
What is HDFS block size and what did you chose in your project?
What is Rack Awareness in Apache Hadoop?
Define a commodity hardware? Does commodity hardware include ram?
Does hadoop always require digital data to process?
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