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beddari | on that road myself so would love to know the answer of the above ^^ :) | 08:40 |
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beddari | omg the "help us build openstack talent" survey ... | 08:58 |
beddari | I was expecting to have a hard time but not this :) | 08:58 |
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clayton | klindgren or mdorman, are you guys running rabbit behind a load balancer now that you have heartbeats turned on? | 12:19 |
clayton | I'd like to run it behind a load balancer to make some migrations easier we'll be doing soon, and if so, I'd like to just do that when we move to kilo at the same time | 12:21 |
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clayton | also, what do you guys have heartbeat_timeout_threshold set to? I see in 1.8.3 of oslo.messaging it's disabled, but I know it used to be 60 seconds | 12:34 |
clayton | that seems kind of long | 12:35 |
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klindgren | clayton, 60 seconds, 2 something, it also heartbeats every time it receives a message as well. So it usually ends up throwing out a fair number of heartbeats. We moved to listing all the rabbitmq hosts. Behind the LB still had some issues when I was testing | 14:25 |
clayton | heartbeating every time it sends a message is pretty broken | 14:26 |
clayton | any message it sends is supposed to effectively count as a heartbeat according to the AMQP spec | 14:26 |
klindgren | it heartbeats first to make sure its still connected | 14:26 |
klindgren | then send the message | 14:26 |
clayton | so you're only supposed to send heartbeats when the connection is idle | 14:26 |
clayton | I'd really like to move rabbit behind the LB because it'd make taking a node out of service a lot easier and we're going to be moving a pretty much all of our gear to another part of the datacenter relatively soon | 14:27 |
clayton | what kind of issues did you see behind the LB? | 14:27 |
clayton | I did some packet captures this morning and it actually sends the heartbeats every 25 seconds if you have it set to 60 and 2 | 14:29 |
clayton | which is fine, I'd rather it send them early rather than have a race condition | 14:29 |
klindgren | when I failed out rabbitmq server | 14:29 |
klindgren | either by iptables or buy stopping the broken | 14:30 |
klindgren | I would start logging ssl errors on some of the clients | 14:30 |
klindgren | I know a guy from rabbitmq was going to actively work with the oslo.messaging guys to make it better | 14:30 |
klindgren | but thts what I remember as of 1.8.1 | 14:31 |
clayton | we were planning to take the node out the LB before restarting clients | 14:31 |
klindgren | from my xp - with a list - you just dont need to worry about it | 14:31 |
klindgren | but agreed I would like to get to ^^ that state | 14:32 |
clayton | so force them to move over before taking down a specific node | 14:32 |
klindgren | in my xp everythign detected and reconnected pretty fast with the list | 14:32 |
clayton | well, we're hoping to upgrade prod to kilo in the next week or so, so I think we're going to try to test it going through the LB a lot during that time and see if we have issues | 14:32 |
klindgren | to the point that I didn't have to restart clients | 14:32 |
clayton | I'd like to avoid service restarts in the future to move to the LB if we're going to end up at that point anyway | 14:32 |
klindgren | +100 | 14:33 |
klindgren | I am jsut syaing - thought behind a LB seems like (is a better) config with the state of oslo.messaging and rabbitmq | 14:33 |
klindgren | for us - it was nothing but pain | 14:33 |
clayton | nod, we'll see, I'll let you know how it goes | 14:33 |
clayton | do you guys have everything on kilo now? I saw you asking about conductor cpu load | 14:34 |
clayton | We've had so many more problems going to kilo than we did with juno, and juno was a giant pain | 14:34 |
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klindgren | that was my own fault | 14:42 |
klindgren | we have a random issue with our staticroute api | 14:42 |
klindgren | thats fails to remove routes for floating ip's | 14:42 |
klindgren | so we created a deletion task in nova-computes | 14:43 |
klindgren | to find vm's in deleting state and retry the deltion | 14:43 |
klindgren | apparently somehtign made the change that actually deletes the vm's but they dont get the deleting state removed from them | 14:43 |
klindgren | so we hada number of those vm's in that state and every2 minutes were tryign to get info about the vm's and nuke them | 14:44 |
clayton | ugh | 14:44 |
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mdorman | clayton: re: kilo. we have one of our prod environments up on kilo now, the other one upgrades on monday | 15:19 |
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