What are the core methods of a Reducer?
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Which database is used in hadoop?
What happens when two clients try to access the same file in the hdfs?
Can we create a hadoop cluster from scratch?
Name the most common Input Formats defined in Hadoop? Which one is default?
What are the most common InputFormats in Hadoop?
Mention what is the difference between an rdbms and hadoop?
How to specify more than one path for storage in Hadoop?
What happens if the number of reducers is 0 in Hadoop?
What is streaming access?
How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
Why can we not create directory /user/dataflair/inpdata001 when name node is in safe mode?
What is the use of cloudera?
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