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Accepted
adrianTNT
Asked: 2012-12-19 12:35:27 +0800 CST

How can I stop a Java jar file application that was started with this command

  • 772

In order to run a game server (minecraft) I start it by running this command in CentOS:

java -Xms512M -Xmx1G -jar minecraft_server.jar

But I have no idea how to stop this file from running. I assume it has it's own internal command but considering it might be started in background and running for a very long time, how can I stop this Java command?

Thank you.

application

2 Answers

  1. Best Answer

    You can use a combination of ps and kill to stop the particular process.

    You would first do ps -aux | grep minecraft to get the process number - which is the second field, first number.

    Then you can issue kill $PID to send SIGTERM to the process and have it gracefully shutdown.

    • 3

  2. You can use the following 2 files to start/stop service.jar

    start.sh

    #!/usr/bin/env bash
PID=0
if [ -f './pid' ]; then
    PID=$(cat ./pid)
fi

if ps -p $PID > /dev/null
then
   echo "Service with $PID is already running"
else
    nohup java -jar ./service.jar > service.out 2> errors.txt < /dev/null & PID=$!; echo $PID > ./pid
fi

    stop.sh

    #!/usr/bin/env bash
if [ -f './pid' ]; then
    PID=$(cat ./pid) && kill -15 $PID
fi
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