Does Tomcat server support Graceful Shutdown? [CLOSED]

Question

Does Tomcat server support Graceful Shutdown (like all other App Servers: Weblogic, Websphere), where new requests are rejected, and the server finishes in-flight work on existing requests?

Something like the apachectl -k graceful, but instead to restart to stop the server.

Comments

What you describe is the default behaviour although Tomcat only waits a relatively short time (10s ?) for in-flight requests to complete.

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This behavior exists using the regular shutdown.sh script? Is the timeout (10s) configurable?

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This behavior exists using the regular shutdown.sh script?
Yes.

Is the timeout (10s) configurable?
Yes.

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./$CATALINA_HOME/bin/catalina.sh stop 30

(30 sec. wait)

Don't remember same option inside shutdown.sh, but anyway - it call  catalina.sh with stop option.

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catalina.sh stop 30 will only wait 30 seconds to check to see if the process stopped: it will not force a shutdown.

Under default setup, Tomcat will only perform a graceful shutdown. That is, no explicit process termination will occur. A SHUTDOWN command is sent to the server which will pause the connectors (so they will not accept new connections) but any in-progress connections will complete, the thread pool(s) will drain, etc.

If you use:

$ CATALINA_PID=/tmp/tomcat.pid bin/catalina.sh stop 30 -force

... then catalina.sh will wait 30 seconds and then try to kill the JVM using "kill -9" once per second for 5 seconds until the process is dead or the 5 tries don't work.