cmd/jujud: machine agent keeps reconnecting to state

[Dave Cheney]

Discovered during load testing, the machine agent keeps reconnecting to the state server

--

ubuntu@juju-goscale2-machine-27:~$ tail -f /var/log/juju/machine-27.log
2013/04/16 01:22:37 INFO state: connecting to 15.185.169.145:37017
2013/04/16 01:22:37 INFO state: connection established
2013/04/16 01:22:38 INFO state: connecting to 15.185.169.145:37017
2013/04/16 01:22:38 INFO state: connection established
2013/04/16 01:22:52 DEBUG state/presence: pinging "m#27" with seq=52
2013/04/16 01:23:08 INFO state: connecting to 15.185.169.145:37017
2013/04/16 01:23:08 INFO state: connection established
2013/04/16 01:23:08 INFO state: connecting to 15.185.169.145:37017
2013/04/16 01:23:08 INFO state: connection established
2013/04/16 01:23:15 DEBUG state/presence: pinging "m#27" with seq=52
2013/04/16 01:23:38 DEBUG state/presence: pinging "m#27" with seq=52
2013/04/16 01:23:38 INFO state: connecting to 15.185.169.145:37017
2013/04/16 01:23:38 INFO state: connection established
2013/04/16 01:23:39 INFO state: connecting to 15.185.169.145:37017
2013/04/16 01:23:39 INFO state: connection established
2013/04/16 01:24:01 DEBUG state/presence: pinging "m#27" with seq=52
2013/04/16 01:24:09 INFO state: connecting to 15.185.169.145:37017
2013/04/16 01:24:09 INFO state: connection established
2013/04/16 01:24:09 INFO state: connecting to 15.185.169.145:37017
2013/04/16 01:24:09 INFO state: connection established

[Dave Cheney (dave-cheney)]

Same with the unit agent.

--

ubuntu@juju-goscale2-machine-27:~$ tail -f /var/log/juju/unit-hadoop-slave-25.log
2013/04/16 01:24:01 DEBUG state/presence: pinging "u#hadoop-slave/25" with seq=53
2013/04/16 01:24:09 INFO state: connecting to 15.185.169.145:37017
2013/04/16 01:24:09 INFO state: connection established
2013/04/16 01:24:24 DEBUG state/presence: pinging "u#hadoop-slave/25" with seq=53
2013/04/16 01:24:40 INFO state: connecting to 15.185.169.145:37017
2013/04/16 01:24:40 INFO state: connection established
2013/04/16 01:24:47 DEBUG state/presence: pinging "u#hadoop-slave/25" with seq=53
2013/04/16 01:25:10 DEBUG state/presence: pinging "u#hadoop-slave/25" with seq=53
2013/04/16 01:25:10 INFO state: connecting to 15.185.169.145:37017
2013/04/16 01:25:10 INFO state: connection established

[William Reade (fwereade)]

This is mgo scanning for servers by reusing our supplied dial func, I think, I think. I've stopped it logging those attempts -- which is a concrete benefit, I think -- but I'm tentatively closing this WONTFIX until we can relate the reconnecting to another problem that justifies messing with it.