When using a HDFS, a heartbeat is sent every ______ to notify the name node that the data mode is still available.
A) 3 hours
B) 3 seconds
C) 6 hours
D) 6 seconds

Question

Quizplus · Accepted Answer

In HDFS, a heartbeat is sent every 3 seconds from a DataNode to the NameNode to signal that it is still alive and functioning properly. This mechanism helps in maintaining the overall health and reliability of the file system.

When Using a HDFS, a Heartbeat Is Sent Every ______