Rack awareness of Namenode?
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What are the site-specific configuration files in Hadoop?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
Whats is distributed cache in hadoop?
What do you know about nlineoutputformat?
What does /etc /init.d do?
Name the examples of some companies that are using hadoop structure?
Can we have multiple entries in the master files?
How indexing is done in HDFS?
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
What is Your Cluster size ?
What are channel selectors?
How to enable recycle bin or trash in hadoop?
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