Where is the Mapper Output stored?
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Do we need to give a password, even if the key is added in ssh?
Explain what if rack 2 and datanode fails?
What will you do when NameNode is down?
How to change from su to cloudera?
Can we have multiple entries in the master files?
Define a task tracker?
what factors the block size takes before creation?
Explain the basic architecture of Hadoop?
Explain what is the purpose of RecordReader in Hadoop?
What is the purpose of dfsadmin tool?
What are the site-specific configuration files in Hadoop?
What are the two main components of ResourceManager?
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