In this case I am not load balancing to apache or anything else where I can touch/remove a file, I am load balancing directly to the http application which doesn't serve any local files, it's a jetty app.
On LVS I could touch a file on the LB or use the ipvsadm command to drop a servers weight to 0. However i'm working in EC2 hence my use of haproxy. Could I run apache on the LB and have two health checks? one for a uri on the backend ( option httpchk server1/myapp ) and another with disable-on-404 that's pointing to a file on the LB (localhost/server1) for maintenance? Thanks, Matt 2009/8/20 Willy Tarreau <[email protected]>: > On Wed, Aug 19, 2009 at 11:18:08PM +0200, Magnus Hansen wrote: >> Very true... >> There are some nice examples in the docs. >> You could also use the persist option to keep old users on the server >> while new ones go to other servers. >> I use that to make sure i dont kick users.. > > better use the "http-check disable-on-404" now, as it allows you to set > a server's weight to zero based on a reply to a health-check. If I can > find some time (joke) I'll update the architecture manual with examples > using this, and possibly with simple scripts to move a file on the server > to perform various maintenance operations. > > Willy > >
