Define streaming?
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Where is the Mapper Output stored?
Why password is needed in ssh localhost?
shouldn't DFS be able to handle large volumes of data already?
What is the use of combiners in the hadoop framework?
How indexing is done in HDFS?
What are the limitations of importing RDBMS tables into Hcatalog directly?
What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
Explain Erasure Coding in Apache Hadoop?
What is Rack Awareness in Apache Hadoop?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
What is the jobtracker?
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