What is the problem with HDFS and streaming data like logs
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What is HDFS Block size? How is it different from traditional file system block size?
What is rack-aware replica placement policy?
On what basis Namenode will decide which datanode to write on?
How to resolve IOException: Cannot create directory
What are different hdfs dfs shell commands to perform copy operation?
Can you give us some more details about ssh communication between masters and the slaves?
How the HDFS Blocks are replicated?
What do you know about sequencefileinputformat?
What does ‘jps’ command do?
Explain how can we change the split size if our commodity hardware has less storage space?
How to change from su to cloudera?
How to come out of the insert mode?
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