We have configured nginx + haproxy + mongrels [ more than 150 instances]. While it works perfectly fine for small configuration, a larger set of mongrels - fail completely.<br><br>I have attached the configuration file for your reference. Apologies for the inconvenience if this is coming into the wrong list.<br>
<br>Each of those servers are 16G RAM, Quad Core, Dual Processor Machines by Dell. So - the memory shouldn't really be a problem.<br><br>Although someone did mention that ip_conntrack module might be a problem.<br><br>
I am not sure what the issue is and not able to understand - why haproxy is unable to route requests.<br><br>Can you please tell me if there could be some other issue? All the servers are marked DOWN even through they're up<br>
<br><br><br>Nov 21 14:08:46 mw-server9 haproxy[323]: Server rails_proxy/mon170 is DOWN. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>Nov 21 14:08:46 mw-server9 haproxy[323]: Proxy rails_proxy has no server available !<br>
Nov 21 14:08:49 mw-server9 haproxy[323]: Server rails_proxy/mon078 is DOWN. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>Nov 21 14:08:49 mw-server9 haproxy[323]: Proxy rails_proxy has no server available !<br>
Nov 21 14:08:54 mw-server9 haproxy[323]: Server rails_proxy/mon166 is DOWN. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>Nov 21 14:08:54 mw-server9 haproxy[323]: Proxy rails_proxy has no server available !<br>
Nov 21 14:08:54 mw-server9 haproxy[323]: Server rails_proxy/mon167 is DOWN. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>Nov 21 14:08:54 mw-server9 haproxy[323]: Proxy rails_proxy has no server available !<br>
Nov 21 14:08:56 mw-server9 haproxy[323]: Server rails_proxy/mon081 is DOWN. 1 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>Nov 21 14:08:56 mw-server9 haproxy[323]: Server rails_proxy/mon089 is DOWN. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>
Nov 21 14:08:56 mw-server9 haproxy[323]: Proxy rails_proxy has no server available !<br>Nov 21 14:09:01 mw-server9 haproxy[323]: Server rails_proxy/mon155 is DOWN. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>
Nov 21 14:09:01 mw-server9 haproxy[323]: Proxy rails_proxy has no server available !<br>Nov 21 14:09:01 mw-server9 haproxy[323]: Server rails_proxy/mon074 is DOWN. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>
Nov 21 14:09:01 mw-server9 haproxy[323]: Proxy rails_proxy has no server available !<br>Nov 21 14:09:04 mw-server9 haproxy[323]: Server rails_proxy/mon124 is DOWN. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>
Nov 21 14:09:04 mw-server9 haproxy[323]: Proxy rails_proxy has no server available !<br>Nov 21 14:09:04 mw-server9 haproxy[323]: Server rails_proxy/mon162 is DOWN. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>
Nov 21 14:09:04 mw-server9 haproxy[323]: Proxy rails_proxy has no server available !<br>Nov 21 14:09:04 mw-server9 haproxy[323]: Server rails_proxy/mon142 is DOWN. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue<br>
Nov 21 14:10:16 mw-server9 haproxy[323]: Server rails_proxy/mon090 is DOWN. 74 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>Nov 21 14:10:16 mw-server9 haproxy[323]: Server rails_proxy/mon095 is DOWN. 73 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>
Nov 21 14:10:16 mw-server9 haproxy[323]: Server rails_proxy/mon118 is DOWN. 72 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>Nov 21 14:10:16 mw-server9 haproxy[323]: Server rails_proxy/mon079 is DOWN. 71 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>
Nov 21 14:10:16 mw-server9 haproxy[323]: Server rails_proxy/mon096 is DOWN. 70 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>Nov 21 14:10:16 mw-server9 haproxy[323]: Server rails_proxy/mon162 is DOWN. 69 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.<br>
Nov 21 14:10:16 mw-server9 haproxy[323]: Server rails_proxy/mon125 is DOWN. 68 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue<br>