On Saturday 13 March 2010, Willy Tarreau wrote:
> On Sat, Mar 13, 2010 at 02:50:32PM +0000, Nick Chalk wrote:
> > > With 1.4.1 WITH patch applied:
> > > - all 3 lines disabled: system works (serves content, no problem, but
> > > no check)
> > > - only 1. line enabled: ERROR, haproxy tells all hosts are down (when
> > > they are not)
> > > - only 2. line enabled: ERROR, haproxy tells all hosts are down (when
> > > they are not)
> > > - 2. and 3. line or 1. and 3. line enabled: ERROR as above.
> >
> > On the ToDo list is better logging of what httpchk is doing - along
> > with working out all the options to the original patch.
> >
> > As a quick test, try adding the following options in place of the
> > commented-out lines above:
> >
> > option httpchk GET /check.php HTTP/1.0
> > http-check expect rstring all_is_ok
> >
> > The 'string' test should work, but it's had less testing than
> > 'rstring'. I've not tried the HEAD method; I can't see it working with
> > 'expect'.
>
> Ah indeed, I did not notice the method was HEAD. Obviously
> it will not get any contents, explaining the issue. However,
> Anze indicated that as soon as the patch was included, option
> "httpchk" stopped working. I suspect that the status code
> check is always enabled and does not match what is implicitly
> configured (eg: 0). I may be wrong, that's pure guess.
Nick, the above configuration doesn't work. Actually, none of these work:
-----
option httpchk GET /check.php HTTP/1.0
http-check expect rstring all_is_ok
-----
option httpchk GET /check.php HTTP/1.0
http-check expect string all_is_ok
-----
option httpchk GET /check.php HTTP/1.0
http-check expect rstring all_is_ok
-----
option httpchk GET /check.php HTTP/1.0
-----
option httpchk HEAD /check.php HTTP/1.0
-----
I think it is time for that logging feature... ;-D
I will try to trace where the check fails and why. I guess it is easiest for
me to do it because i can replicate the error anytime. If you have some
guidelines where in the code to add printf()-s however, I'd appreciate it. Or
I'll just take a look at what the patch changes... I love open source
software. :)
Thanks,
Anze
