Cycling a node or entire domain
by Bela Ban
In mod-jk, we had the ability to disable and/or stop a worker. Disabling
a wroker W meant that existing sessions would be served, but new
sessions would not be created on W, until W was enabled again.
I'd like to have the same capability in mod-cluster. It would be good to
have
* this capability added to /mod_cluster-manager and possibly
* provide a script (in jboss/bin ?) which allows an admin to do the
same thing, e.g. "./disable-worker.sh node2" or "./disable-domain D3"
The functionality should include
* Disabling a worker W
* Stopping a worker W. Note that we can achive this by shutting W
down, but 'stopping a worker' merely removes W from httpd's worker
list, but doesn't require a shutdown of W (W would also not
register with httpd at this point)
* Starting a worker W. The opposite of stopping W. Have W resume
registering with httpd
* Enabling a worker W. Allows for new sessions to be created on W
* Disabling / stopping / starting / enabling a domain D. Same as
above, but for all workers in a given domain D.
* It would be nice to be notified when all sessions in a disabled
domain have expired
Can we create a JIRA to do this ?
--
Bela Ban
Lead JGroups / Clustering Team
JBoss - a division of Red Hat
15 years, 2 months
