What is Safemode in Apache Hadoop?
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Should we use RAID in Hadoop or not?
Explain the use of tasktracker in the hadoop cluster?
What do you mean by taskinstance?
What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?
What are the two main parts of the hadoop framework?
Can hbase run without hadoop?
What are the hadoop's three configuration files?
How is hadoop different from other data processing tools?
What is a 'block' in HDFS?
What is 'Key value pair' in HDFS?
Which files are used by the startup and shutdown commands?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?