What is Partioner in hadoop? Where does it run
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Where is the Mapper Output stored?
How many maximum jvm can run on a slave node?
What is HDFS Block size? How is it different from traditional file system block size?
What is Hadoop streaming?
What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
What is Rack Awareness in Apache Hadoop?
Which data storage components are used by hadoop?
How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
What are the two main parts of the hadoop framework?
What is the default replication factor?
Are Namenode and job tracker on the same host?
What is the communication channel between client and namenode/datanode?