did you maintain the hadoop cluster in-house or used hadoop in the cloud?
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How to enable recycle bin or trash in hadoop?
Is secondary namenode a substitute to the namenode?
What are the limitations of importing RDBMS tables into Hcatalog directly?
What is a spill factor with respect to the ram?
Mention what is the number of default partitioner in Hadoop?
Does the hdfs client decide the input split or namenode?
What is a Secondary Namenode? Is it a substitute to the Namenode?
What are the modes in which Apache Hadoop run?
Explain what is sqoop in Hadoop ?
what are Task Tracker and Job Tracker?
How a task is scheduled by a jobtracker?
How to enable/configure the compression of map output data in hadoop?
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