Greetings --
As I announces about a week ago, as a part of my research, I have
developed a mechanism for terminating individual Tomcat webapps (at the
context level) called soft termination. For your further enjoyment,
I've taken the liberty of setting up a demo install of my soft
termination system. The demo install is at:
http://puppet.cs.rice.edu:8080/
In particular, the following URL runs an infinite loop that prints the
current time each second (note it does this with a "while(true)" and no
sleeps):
http://puppet.cs.rice.edu:8080/examples/servlet/ExceptionExample
And this URL prints the current system status of the machine in question (updated once per second):
http://www.cs.rice.edu/~arudys/loadavg.html
Every 10 seconds, termination of the examples webapp is triggered. Note that it is triggered by updating the modification date of the ExceptionExample.class file (forcing a reload which terminates the old webapp) and not from within Tomcat.
Once again, links for downloading the code and to the journal article
describing soft termination can be found off this site:
http://www.cs.rice.edu/~arudys/software/#softterm
And feel free to badger me with any questions you see fit.
Enjoy. Be nice.
Ok, that sounds cool :)
That kind of tech could add extra robustness to TC. Right now, I don't quite undestand how it works, though :-P I'll try to look at it next week.
Remy
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