0 votes
1 view
in Big Data Hadoop & Spark by (5.2k points)
I always see this term whenever I'm trying to set up a new node on Cloudera.

1 Answer

0 votes
by (11.3k points)

Quite literally, the word 'heartbeat' is used to refer to the health of components of a Hadoop cluster. To elaborate, in technical terms, a 'heartbeat' is a name for a signal sent between a DataNode and NameNode. 

This signal is taken as a sign of vitality. If there is no response to the signal, then it is understood that there are certain health issues/ technical problems going on with the DataNode or the TaskTracker. 

Master the concepts like "Heartbeat' in Hadoop by enrolling yourself in Intellipaat's Hadoop Online Training.

Welcome to Intellipaat Community. Get your technical queries answered by top developers !