What is meant by streaming access?
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Explain about Hadoop file system and processing framework?
Why do the nodes are removed and added frequently in a hadoop cluster?
What are the different commands used to startup and shutdown Hadoop daemons?
What do you understand by standalone (or local) mode?
What daemons run on master nodes?
How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
Clarify how job tracker schedules an assignment?
How does speculative execution work in Hadoop?
What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?
What are the differences between hadoop 1 and hadoop 2?
What is Federation?
Clarify what is sequence file input format?
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