What is inputsplit in hadoop? Explain.
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Do we need to give a password, even if the key is added in ssh?
Why do we need a password-less ssh in fully distributed environment?
What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?
Explain the overview of hadoop history breifly?
What are different hdfs dfs shell commands to perform copy operation?
What is the default replication factor?
How a task is scheduled by a jobtracker?
Define a daemon?
What is crontab? Explain with suitable example?
What is the jobtracker?
How you can contact your client everyday ?
What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?
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