What happens if you get a ‘connection refused java exception’ when you type hadoop fsck /?
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What happens when two clients try to access the same file in the hdfs?
How is the splitting of file invoked in Hadoop framework?
Can you explain bloommapfile.
Do we require two servers for the namenode and the datanodes?
After increasing the replication level, I still see that data is under replicated. What could be wrong?
What is CAP Theorem? What aspects does Hadoop support from this theorem?
What are the hadoop configuration files at present?
Explain the common input formats in hadoop?
What does rack awareness algorithm means?
what happens when namenode goes down during file read operation in hadoop?
Can we write map reduce program in other than java programming language. How?
What are the differences between hadoop 1 and hadoop 2?
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