Hi,
On Wed, Mar 26, 2014 at 10:13:37AM +0100, Lukas Tribus wrote:
> Hi,
>
>
> > I am using 1.5-dev21-6b07bf7. The haproxy process was running, the web
> > gui was responding. According to the web gui, all the backends were up,
> > and I restarted all backend services to make sure as well.
> >
> > When I send connections to the front-end, TCP connection was
> > established to haproxy, and then stuck - clearly not forwarded to the
> > backend servers. After restarting haproxy everything started to work
> > again.
>
>
> Next time, please:
> - make screenshots of the webgui or better yet, export the csv
> - check CPU usage on the HAproxy box (is haproxy draining a lot of CPU)?
>
>
> Are you sure you didn't just hit some of the maxconn limits and HAproxy
> queued the request?
>
> Did you wait for 30 seconds (your queue timeout) to see if HAproxy returns
> an error?
Other ideas that come to mind :
- a very long queue in a backend or server causing each request to wait
for all other ones to be processed ;
- a bug in dev21 which was got rid of with the polling rewrite that went
in dev22.
Regards,
Willy