Can you tell us more about ssh?
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Which are the two types of 'writes' in HDFS?
On which port does ssh work?
What is commodity hardware?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
How we can change Replication factor when Data is on the fly?
How will you make changes to the default configuration files?
What infrastructure do we need to process 100 TB data using Hadoop?
What are different hdfs dfs shell commands to perform copy operation?
How many JVMs run on a slave node?
How to enable trash/recycle bin in hadoop?
What are the modules that constitute the Apache Hadoop 2.0 framework?
Define a job tracker?
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