What is the difference between a Hadoop and Relational Database and Nosql?
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What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?
Can we call vms as pseudos?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
What is the full form of fsck?
How can you overwrite the replication factors in HDFS?
Have you ever used Counters in Hadoop. Give us an example scenario?
What is InputSplit and RecordReader?
Explain Erasure Coding in Apache Hadoop?
What is high availability in hadoop?
What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?
What is HDFS Block size? How is it different from traditional file system block size?
How to resolve small file problem in hdfs?
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