What are channel selectors?
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How would you tackle counting words in several text documents?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
Explain what happens in textinformat ?
What are the important differences between apache and hadoop?
What happens to job tracker when namenode is down?
What is the best hardware configuration to run Hadoop?
What is small file problem in hadoop?
What if a namenode has no data?
What are the two main parts of the hadoop framework?
What is oozie in hadoop?
What is Row Key?
Which are the two types of 'writes' in HDFS?
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