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What is JPS? Why is it used in Hadoop?

Answer Posted / Nirvesh Kumar

JPS (Java Process Status) is a command-line tool provided by Java that lists all currently running Java processes on a given machine. In Hadoop, JPS is used to check the status of various Hadoop services like the NameNode, DataNodes, JobTracker, and TaskTrackers. It helps in troubleshooting issues related to Hadoop service startup or failure.

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