Jan 11, 2020 in Big Data | Hadoop
Q: What will happen when NameNode is down and a user submits a new job?

1 Answer

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Jan 11, 2020

Since NameNode is the single point of failure in Hadoop, user job cannot execute. The job will fail when the NameNode is down. User will have to wait for NameNode to restart and come up, before running a job.

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