Hi, This implements the feature discussed in the earlier thread of killing connections on backup servers when a non-backup server comes back up. For example, you can use this to route to a mysql master & slave and ensure clients don't stay on the slave after the master goes from down->up. I've done some minimal testing and it seems to work. Today is the first time I ever looked at haproxy's code but this feature seemed straightforward enough to implement. I hope I've done it properly. Justin http://www.serverphorums.com/read.php?10,502713,502713#msg-502713 Thu, 20 Jun 2013 06:51:24 +0200 Phorum 5.2.18 http://www.serverphorums.com/read.php?10,502713,507070#msg-507070 http://www.serverphorums.com/read.php?10,502713,507070#msg-507070 > I think that overall it's fine. I'm going to add minor restrictions to the
> UP server before killing backup connections :
> - ensure that it's not backup (otherwise it can make things worse when
> you have multiple backup servers)
> - ensure that its weight is > 0, otherwise it will not get any traffic
>
>
> I'll also add some basic doc for this new option.

Sounds great. And I'm glad to see the dev11 release. Thanks!

Justin]]> Justin Karneges HAProxy Mon, 04 Jun 2012 05:20:01 +0200 http://www.serverphorums.com/read.php?10,502713,506993#msg-506993 http://www.serverphorums.com/read.php?10,502713,506993#msg-506993
sorry I didn't notice your mail!

On Thu, May 24, 2012 at 03:28:52PM -0700, Justin Karneges wrote:
> Hi,
>
> This implements the feature discussed in the earlier thread of killing
> connections on backup servers when a non-backup server comes back up. For
> example, you can use this to route to a mysql master & slave and ensure
> clients don't stay on the slave after the master goes from down->up. I've done
> some minimal testing and it seems to work.
>
> Today is the first time I ever looked at haproxy's code but this feature seemed
> straightforward enough to implement. I hope I've done it properly.

I think that overall it's fine. I'm going to add minor restrictions to the
UP server before killing backup connections :
- ensure that it's not backup (otherwise it can make things worse when
you have multiple backup servers)
- ensure that its weight is > 0, otherwise it will not get any traffic


I'll also add some basic doc for this new option.

Thanks,
Willy]]> Willy Tarreau HAProxy Sun, 03 Jun 2012 23:30:01 +0200 http://www.serverphorums.com/read.php?10,502713,502713#msg-502713 http://www.serverphorums.com/read.php?10,502713,502713#msg-502713
This implements the feature discussed in the earlier thread of killing
connections on backup servers when a non-backup server comes back up. For
example, you can use this to route to a mysql master & slave and ensure
clients don't stay on the slave after the master goes from down->up. I've done
some minimal testing and it seems to work.

Today is the first time I ever looked at haproxy's code but this feature seemed
straightforward enough to implement. I hope I've done it properly.

Justin]]> Justin Karneges HAProxy Fri, 25 May 2012 00:30:01 +0200