I've read many response to this thread, but when you redeploy in an
enterprise environment (many httpd+mod_jk -> 4 tomcat server -> a db)
independently if use shared or not appBase, manual or scripted deployer,
with or without tomcat manager, you return to your client at 404 or
worst a 503 when a request reach the tomcat. And for my application it's
not permitted....

This is what I think I can do:
Environment (24 Apache+mod_jk -> 4 tomcat server)
mod_jk with ping_mode=A and prepost_timeout=1000
to redeploy a wabapp:
For each tomcat server:
   Connect to JMX MBean and stop AJP connector.
   Wait the end of all APJ RequestProcessor.
   Redeploy webapp with tomcat manager.
   Restart tomcat.
   Wait for 60 sec (The default maintenance of mod_jk).
end.

How about this?

Regards,
Domenico



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