What is the use of Combiner?
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How to Administering Hadoop?
What is DistributedCache and its purpose?
Can we have multiple entries in the master files?
How many instances of tasktracker run on a hadoop cluster?
Explain the features of pseudo mode?
What are the steps to submit a Hadoop job?
How does a namenode handle the failure of the data nodes?
How to change Replication Factor For below cases ?
What happens to a NameNode that has no data?
How indexing is done in HDFS?
What is the purpose of dfsadmin tool?
How to resolve small file problem in hdfs?