On Sat, Sep 22, 2012 at 10:28 AM, Sreekanth V <[email protected]> wrote: > Hi > > We are considering using the following scheme to do our rolling deploys. > > For each server on haproxy. > > 1) Disable server out of haproxy > 2) Deploy to the server > 3) Enable server into haproxy > > The question is how does disable server handle existing connections to > the server? Would it close them immediately or would it let the > connections to complete but not accept new connections? > > Would setting the weight to 0% be better than disable server? > > Thanks > sreekanth. >
Hi, Disable means that the server won't be used anymore by the load-balance algorithm, hence it won't receive any new connections. Sticked connection are still routed to this server, for a graceful shutdown. Setting the weight to 0 would have the same effect. Note that you can use HAProxy socket to run the disable backend/server command, it will apply the configuration without reloading haproxy. cheers
