What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?


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More Apache Hadoop Interview Questions

What is the difference between HDFS and NAS ?

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Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?

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What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?

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What is a block and block scanner in HDFS?

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did you maintain the hadoop cluster in-house or used hadoop in the cloud?

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How is the option in Hadoop to skip the bad records?

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Command to format the NameNode?

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What is the relation between job and task in hadoop?

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What is the port number for NameNode

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What is rack-aware replica placement policy?

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What happens to a namenode, when job tracker is down?

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How the HDFS Blocks are replicated?

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