What is the default replication factor?
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Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
What are the main components of a Hadoop Application?
How can one increase replication factor to a desired value in Hadoop?
What is a block and block scanner in HDFS?
What platform and java version are required to run hadoop?
What happens to a NameNode that has no data?
How to come out of the insert mode?
how can we change Replication Factor?
What is the main purpose of HDFS fsck command?
Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?
What is Rack Awareness in Apache Hadoop?
What are the modules that constitute the Apache Hadoop 2.0 framework?