Hi,
The goal was to swap the haproxy configuraiton file with a new updated one
w/o any downtime.
On Sun, Apr 28, 2013 at 1:54 PM, Christian Ruppert id...@qasl.de wrote:
On 04/28/13 at 01:00PM -0400, S Ahmed wrote:
Hi,
1. Is there a way to update the config file without having to stop/start
the haproxy service? e.g. when I need to update the ip addresses of the
backend servers (using ec2)
2. During migrations, say I have 10 backend servers, what if I want to
stop
taking requests for 5 of the 10 servers, is the best way to update the
config and just remove them? Or is there a smoother transition somehow
that won't causes errors during the transition?
i.e. would it be possible to finish the requests, but stop responding to
new requests for those 5 servers I want to take offline.
See https://code.google.com/p/haproxy-docs/wiki/disabled
You can restart HAProxy by e.g.:-D -p /var/run/haproxy.pid -f
/etc/haproxy.cfg -sf $(cat
/var/run/haproxy.pid)
Alternatively you could use the control socket by using socat:
https://code.google.com/p/haproxy-docs/wiki/UnixSocketCommands
So e.g. disable server backend1/server1
Or even via the stats interface with stats admin if
--
Regards,
Christian Ruppert
