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Kill a java process (on linux) by process name instead of PID

When setting up / installing a Hadoop cluster, we often need to kill the Java Process / Daemon. We see that Java / Daemons processes work with the jps team. Usually we kill the Java process using the PID. For example.

 kill -9 112224

It's a little difficult to enter PID. Is there a way to kill a process by its name? In one team?

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Here is the command to kill a Java process - this is the name of the process instead of its ProcessID.

 kill `jps | grep "DataNode" | cut -d " " -f 1`

Let me explain more about the benefits of this team. Suppose you are working with a Hadoop cluster. It is often required that you check java daemons working with the jps command. Say, when you give this command on work nodes, you see the following result.

 1915 NodeManager 18119 DataNode 17680 Jps

Usually, if we want to kill the DataNode process, we will use the following command

 kill -9 18119

But, it’s a little difficult to enter a PID to use the kill command. Using the command provided in this answer, it is easy to write the process name. We can also prepare shell scripts to destroy commonly used daemons in a cluster of haops, or we can prepare one shell script and use the parameter as the name of the process.

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How about using

 killall firefox
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To get the process id for this java process

netstat -tuplen

The process identifier (PID) of this process that you want to kill and run

kill -9 PID

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