How do you define "block" in HDFS?
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Explain the hadoop-core configuration?
Can you give us some more details about ssh communication between masters and the slaves?
What is HDFS Block size? How is it different from traditional file system block size?
when hadoop enter in safe mode?
What problems can be addressed by using Zookeeper?
What is Your Cluster size ?
Explain the core components of hadoop?
What do masters consist of?
What is hbase in hadoop?
What are the port numbers of namenode, job tracker and task tracker?
What does ‘jps’ command do?
what is a datanode?