What are the modules that constitute the Apache Hadoop 2.0 framework?
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On what basis name node distribute blocks across the data nodes?
Did you ever ran into a lop sided job that resulted in out of memory error
How to enable recycle bin in hadoop?
Explain the features of pseudo mode?
How does master slave architecture in the hadoop?
Explain Erasure Coding in Apache Hadoop?
What is a Record Reader in hadoop?
What are the port numbers of namenode, job tracker and task tracker?
what factors the block size takes before creation?
Where do you specify the Mapper Implementation?
What is Hadoop Custom partitioner ?
How can you overwrite the replication factors in HDFS?