How many instances of JobTracker can run on a Hadoop Cluser?
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What other technologies have you used in hadoop sta ck?
What is a Secondary Namenode? Is it a substitute to the Namenode?
What are the different methods to run Spark over Apache Hadoop?
On what basis name node distribute blocks across the data nodes?
How does an hadoop application look like or their basic components?
What is a Record Reader in hadoop?
What does the command mapred.job.tracker do?
Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
What is HDFS High Availability?
How the HDFS Blocks are replicated?
What is MapFile?
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