Thank you very much for pointing me into that direction. I think that definitely answers my question. Since haproxy itself might keep more than one process alive after dealing with an "-sf" (at least for as long as it takes to finish the work) I assume that keeping alive more than one process, in principle, can't be a problem :)
And maybe I can simplify our solution a bit by applying the "-sf" solution. On 11.07.2011, at 15:34, Fahd Sultan wrote: > Depending on your setup, you could do a "hot-reconfig": > > http://sysbible.org/2008/07/26/haproxy-hot-reconfiguration/ > http://www.mgoff.in/2010/04/18/haproxy-reloading-your-config-with-minimal-service-impact/ > > On Mon, Jul 11, 2011 at 7:38 AM, Alexander Hollerith > <alex.holler...@gmail.com> wrote: > Hi, > > one of our haproxy environments needs to deal with frequent config changes > that force us to add or remove proxies quite often, however at the same time > we can't disturb already running proxies. > We are addressing this problem by running more than one haproxy process on > one and the same host/IP, adding new proxies to a new haproxy instance and > then moving them on to the main haproxy instance during a following > maintenance window. > > We are doing this by using separate configuration files, a separate set of > init.d start/stop scripts, separate monit configuration, different admin > ports, etc. and it seems to run fine so far. > Before moving this solution to our production environment I thought I'll > double check if there is any known issue that should keep us away from doing > it in this way. > I already searched around and didn't find anything that tells me to not do > it, but on the other hand I didn't find any hints about doing it this way > either, hence my question on this list. > > Thanks and with kind regards > A. > > -- > Si forte in alienas manus oberraverit hec peregrina epistola incertis ventis > dimissa, sed Deo commendata, precamur ut ei reddatur cui soli destinata, nec > preripiat quisquam non sibi parata. > > > > > > -- > Fahd Sultan | Director, IT Infrastructure > Brilig - Powering Free Market Advertising™ > fsul...@brilig.com | +1.347.878.5826 > >
