How is HDFS fault tolerant?
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On What concept the Hadoop framework works?
Can we do online transactions(oltp) using hadoop?
What is Disk Balancer in Apache Hadoop?
What problems have you faced when you are working on Hadoop code?
What is the communication channel between client and namenode/datanode?
Why password is needed in ssh localhost?
what should be the ideal replication factor in hadoop?
Is map like a pointer?
Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?
What happens to job tracker when namenode is down?
What does /etc /init.d do?
How to restart Namenode?
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