On our linux boxes, we have multiple users who run tomcat.
Currently we are using process kill commands to kill the respective user's tomcat , instead of using shutdown.sh
Are there any downsides of using this approach ?
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It depends on what kill signal you are using:
If you use
TERM(the numeric equivalent iskill -15), theoretically you are letting thejavaprocess signal its children and exit in a correct way.If you use
KILL(kill -9), you don't, and you left all sorts of temporary files, sockets, etc... behind.
That said, tomcat has its own mechanism to shutdown properly, namely an RMI call which you should be using, either directly or by using your operating system's interface: service, start, systemctl or any other.
If you can't do that for whatever reason, you could use some help from a wrapper like tanukiwrapper or supervisord, which also has a web frontend.
dawud
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What difference would be there if we use kill -15 and shutdown script ? – Novice User Mar 01 '14 at 12:37
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The answer is above, you need to check what the shutdown script does (hint: it does not `kill -15` the `tomcat` process) – dawud Mar 01 '14 at 12:39
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There is no difference in behaviour if you use Tomcat's shutdown script or use kill -15. The end result is exactly the same - a clean shutdown. The only difference is a slight difference in the code path that starts the shutdown process.
Mark Thomas
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