Did you ever ran into a lop sided job that resulted in out of memory error, if yes then how did you handled it ?
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What is the non dfs used?
Clarify what webdav is in hadoop?
How to do ‘map’ and ‘reduce’ works?
What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
List out the some common problems faced by data analyst?
What is the key difference between NameNode and DataNode in Hadoop?
What is Mapper in Hadoop?
We have already sql then why nosql?
When we send a data to a node, do we allow settling in time, before sending another data to that node?
What is Fault Tolerance?
Mention what are the most common input formats defined in hadoop?
What is replication factor?
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