Where do you specify the Mapper Implementation?
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How do you categorize a big data?
Is hadoop a database?
What is a speculative execution in Apache Hadoop MapReduce?
Why do we use HDFS for applications having large data sets and not when there are lot of small files?
What is Apache Hadoop YARN?
Explain Erasure Coding in Apache Hadoop?
What is the difference between hadoop and other data processing tools?
Can you tell us more about ssh?
What are the port numbers of namenode, job tracker and task tracker?
Do we need to give a password, even if the key is added in ssh?
Why do we use Hadoop?
what is a datanode?
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