What is heartbeat in HDFS?

Category: HadoopWhat is heartbeat in HDFS?
Editor">Editor Staff asked 2 years ago

What is heartbeat in HDFS?

1 Answers
Editor">Editor Staff answered 2 years ago

Heartbeat is a signal which is used between a data node and name node, and between task tracker and job tracker. If the name node or job tracker doesn’t respond to the signal then it is considered that there is some issue with data node or task tracker.