Cyclic Connection Dumping

Hello,

We use haproxy in a high volume site and have noticed that connections are dumped every 5mins because haproxy thinks the backends are unavailable. Here is a typical log entry:

Sep 24 13:45:12 web01.int.s-cloud.net haproxy[24153]: 10.12.22.101:11537 [24/Sep/2010:13:45:10.688] live live/<NOSRV> 0/2004/-1/-1/2005 503 1933 - - sQ-- 605/601/601/0/0 0/845 {sou} {} "GET /andreknubel/following HTTP/1.0"

This happens like clock work every 5 mins and last for about 5-15 secs then things go back to normal.

  From haproxy.conf:

 mode        http
  balance     roundrobin
  retries     3
  timeout     connect 500ms
  timeout     client  30s
  timeout     server  30s
  timeout     queue   2s

Anyone have any suggestions?

Thanks

-- 
Jake Maizel
Soundcloud

Mail & GTalk: jake#soundcloud.com
Skype: jakecloud

Rosenthaler strasse 13, 101 19, Berlin, DE