How does an hadoop application look like or their basic components?
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what are the steps involved in decommissioning removing
What are the port numbers of namenode, job tracker and task tracker?
Are Namenode and job tracker on the same host?
What is your favourite tool in the hadoop ecosystem?
Why do we need a password-less ssh in fully distributed environment?
Explain how do ‘map’ and ‘reduce’ works?
What is hadoop framework?
What is a speculative execution in Apache Hadoop MapReduce?
What is HDFS Block size? How is it different from traditional file system block size?
Define a datanode?
What happens to a namenode, when job tracker is down?
What is the meaning of the term "non-DFS used" in Hadoop web-console?
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