Rack awareness of Namenode?
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How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
What is difference between split and block in hadoop?
What is crontab? Explain with suitable example?
What Mapper does?
How to enable recycle bin or trash in hadoop?
What is output format in hadoop?
What is the function of ApplicationMaster?
What is Derby database?
Explain the benefits of block transfer?
Explain the overview of hadoop history breifly?
What are the port numbers of namenode, job tracker and task tracker?
How to use Apache Zookeeper command line interface?
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