What is Safemode in Apache Hadoop?


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More Apache Hadoop Interview Questions

Should we use RAID in Hadoop or not?

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Explain the use of tasktracker in the hadoop cluster?

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What do you mean by taskinstance?

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What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?

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What are the two main parts of the hadoop framework?

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Can hbase run without hadoop?

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What are the hadoop's three configuration files?

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How is hadoop different from other data processing tools?

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What is a 'block' in HDFS?

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What is 'Key value pair' in HDFS?

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Which files are used by the startup and shutdown commands?

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Explain the difference between gen1 and gen2 hadoop with regards to the namenode?

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