Hello, first, please avoid sending HTML mails to mailing lists, thanks.
On Mon, Jul 27, 2009 at 09:47:14AM +1000, William Angus wrote: > Thanks for that, as it turns out (hangs head in shame) the problem was > with syslog. I had not configured HAProxy to usr the local0 socket > properly. for more precision, local0 is not a socket, it's called a facility. It's just a number at the beginning of the message corresponding to a syslog channel approximatively, so that you're not forced to mix all your messages together. > I should have had the entry !haproxy above the local0 entry > instead of +127.0.0.1 this allowed the haproxy process to communicate > with the log. Logging works fine now. I also added the entry +localhost > to the top of /etc/syslog.conf but I don't really think that had much > to do with it. The one you added to your rc.conf is important, because it is the one indicating syslog it has to listen to UDP messages : > --from /etc/rc.conf: > apache22_enable="YES" > syslogd_flags="-a 127.0.0.1:*" > --from /etc/syslog.conf > local0.* /var/log/haproxy.log I don't know for FreeBSD, but some syslog daemons tend to perform synchronous logging by default, unless you prefix the filename with a '-' like this : local0.* -/var/log/haproxy.log It is very important to disable synchronous logging because it could saturate your machine's I/O capacity with just a few hundred requests/s. With the '-', he writes become buffered and you can reach 10-100 times more performance (and limit the wear of the disks but that's another issue). > $ ps auxw | grep syslog > root 1505 0.0 0.0 5692 1204 ?? Ss Fri05PM 0:01.72 > /usr/sbin/syslogd -a 127.0.0.1:* > > in my haproxy.conf is: > global > log 127.0.0.1 local0 notice Seems OK. You should try to shut all your servers down, haproxy will emit an 'emerg' level message. But some syslog are configured to broadcast these messages to all consoles, which is very annoying. If so, you can add a max level on your line to limit the output severity like this : global log 127.0.0.1 local0 notice err Regards, Willy
