What is Partioner in hadoop? Where does it run
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Explain the core components of hadoop?
What are the port numbers of namenode, job tracker and task tracker?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
Is map like a pointer?
Can NameNode and DataNode be a commodity hardware?
Explain the use of tasktracker in the hadoop cluster?
What are the different methods to run Spark over Apache Hadoop?
How did you debug your Hadoop code ?
How would you tackle counting words in several text documents?
How is HDFS fault tolerant?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
What are the site-specific configuration files in Hadoop?
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