What are the site-specific configuration files in Hadoop?
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On what basis Namenode will decide which datanode to write on?
how to share the metastore within multiple users?
What is Disk Balancer in Apache Hadoop?
Is hadoop obsolete?
Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
Define a combiner?
Explain what if rack 2 and datanode fails?
What if a namenode has no data?
Is hadoop based on google mapreduce?
What is hbase in hadoop?
What is formatting of the dfs?