What is Safemode in Apache Hadoop?
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What is Row Key?
What is Your Cluster size ?
How blocks are distributed among all data nodes for a particular chunk of data?
What is a heartbeat in HDFS?
Define a daemon?
How many JVMs run on a slave node?
How indexing is done in HDFS?
Explain the overview of hadoop history breifly?
How can one increase replication factor to a desired value in Hadoop?
What is the purpose of RawComparator interface?
What stored in HDFS?
what are the nodes in the Hadoop cluster?
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