Why is Apache Spark faster than Apache Hadoop?
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Explain the basic architecture of Hadoop?
Which are the two types of 'writes' in HDFS?
How to restart Namenode?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
What do slaves consist of?
What is partioner in hadoop? Where does it run,mapper or reducer?
Did you ever ran into a lop sided job that resulted in out of memory error
What are different hdfs dfs shell commands to perform copy operation?
What is a block and block scanner in HDFS?
What is formatting of the dfs?
What do you know about keyvaluetextinputformat?
What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?
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