how reload the servlet without restart the tomcat6 server

If I have multiple Host definition on my $TOMCAT_HOME/conf/server.xml How can I reload the servlet without restart the tomcat6 server? What are the parameters for use Tomcat like with multiple host?

unpackWARs autoDeploy liveDeploy deployXML etc.

---new text added-- I don't like restart manually the tomcat manager, because I have differents Virtual Host configured. If a user uploaded a new servlet version, I prefer that tomcat automatically reload the new version WITHOUT the sysadmin interven开发者_StackOverflow中文版tion in order to restart manually the complete tomcat server.

A sample of context definition inside the server.xml is like this:

<Context path="" docBase="/webapps/client.com/servlets" reloadable="true" privileged="true"/>

But, when this client.com has uploaded a new servlet, the tomcat doesn't refresh a new version in many days, and he needs call me in order to restart the tomcat server. This intervention affects the normal operation to other users in the same server.

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Check this thread (in short - set <Context reloadable="true" />) Also, I think running tomcat in debug mode should allow that. (If you don't run it through an IDE, add -Xdebug

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Reloading of servlet contexts can be done via the Tomcat manager application. If you tell what you intend by reloading it'd be easier to give a more specific answer.