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Are Namenode and job tracker on the same host?
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
Which are the three main hdfs-site.xml properties?
What is the InputFormat ?
How to enable/configure the compression of map output data in hadoop?
How to come out of the insert mode?
Name the various types of lists supported by bootstrap.
Which command is used for the retrieval of the status of daemons running the hadoop cluster?
Explain the master class and the output class do?
Do we need to give a password, even if the key is added in ssh?
How indexing is done in HDFS?
Explain why do we need hadoop?
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