Mention what does the text input format do?
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Name the most common Input Formats defined in Hadoop? Which one is default?
Why Hadoop performs replication, although it results in data redundancy?
What is the command to change the replication factor ?
Mention what is rack awareness?
How many daemon processes run on a hadoop cluster?
What happen when namenode enters in safemode in hadoop?
Clarify what webdav is in hadoop?
For using hadoop list the network requirements?
How can you native libraries be included in yarn jobs?
Give a brief overview of Hadoop history?
Mention what is data cleansing?
what happens when namenode goes down during file read operation in hadoop?
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