Define tasktracker.
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What is output format in hadoop?
what are the steps involved in commissioning adding
What are the main components of a Hadoop Application?
What is compute and Storage nodes?
Rack awareness of Namenode?
How can you overwrite the replication factors in HDFS?
Where is the Mapper Output intermediate kay-value data stored ?
What is the function of NodeManager?
What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?
How is HDFS fault tolerant?
How to resolve IOException: Cannot create directory
What is a Secondary Namenode? Is it a substitute to the Namenode?
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