What is Partioner in hadoop? Where does it run
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How would you tackle counting words in several text documents?
how would you modify that solution to only count the number of unique words in all the documents?
What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?
What is HDFS ? How it is different from traditional file systems?
How can we check whether namenode is working or not?
Explain Erasure Coding in Apache Hadoop?
How to resolve IOException: Cannot create directory
How many Daemon processes run on a Hadoop system?
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
Explain the hadoop-core configuration?
What is the difference between rdbms and hadoop?
Is secondary namenode a substitute to the namenode?
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