What is use 'jps' command in Hadoop?

The full form of JPS is Java Virtual Machine Process Status. JPS offers all the instrumental hotspots that the JVM is running in the system. JPS is a type of command that is implemented to check out all the Hadoop daemons like DataNode, NodeManager, NameNode, and ResourceManager that are currently running on the machine.

JPS command is used to check if a specific daemon is up or not. The command of JPS displays all the processes that are based on Java for a particular user. The command of JPS should run from the root to check all the operating nodes in the host.