Under Hadoop High Availability, Fencing means
a)Preventing a previously active namenode from start running again.
b)Preventing the start of a failover in the event of network failure with the
active namenode.
c)Preventing the power down to the previously active namenode.
d)Preventing a previously active namenode from writing to the edit log.

1 Answer

Answer :

Preventing a previously active namenode from writing to the edit log.

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