Define a commodity hardware? Does commodity hardware include ram?
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Is client the end user in HDFS?
On what basis data will be stored on a rack?
what factors the block size takes before creation?
What are combiners and its purpose?
What is the purpose of DataNode block scanner?
Is fs.mapr.working.dir a single directory?
Have you ever used Counters in Hadoop. Give us an example scenario?
What is Safemode in Apache Hadoop?
Is hadoop open source?
What is hbase in hadoop?
What is Partioner in hadoop? Where does it run
What platform and java version are required to run hadoop?
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