I was looking at this very recently.
If the init() method throws a javax.servlet.UnavailableException(), it
will be marked as unavailable. Take a look at the javadocs -- one
invocation of this exception takes a time param that tells tomcat to try
again after a set timeout period. That way it
If I understand the situation correctly,
You could use a filter to deny all requests to the servlet (return
HTTP error 500) while the database is down. On initialization you
check the database and set a flag to tell the filter if the database
is down. When the database comes back up (assuming you
Runtime.getRuntime().exit(n)
But this will exit TOMCAT as well as the VM..
perhaps you can make a startup script which checks for the desired process and
then forks depending on found process
M-
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