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| Appa | Problem having setting up haproxy with openstack | 06:50 |
|---|---|---|
| Appa | Anybody faced same type of issue? | 06:50 |
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| haukebruno | Appa, what issue in detail? | 08:02 |
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| Appa | haukebruno: i could able to create loadbalancer through dashboard but members are not connecting. | 08:35 |
| Appa | its showing issue like - haproxy[26442]: backend 8e9dc5da-0588-41d8-bdd1-52552220c825 has no server available! | 08:35 |
| haukebruno | Appa, are you talking about haproxy inside your controle plane or about haproxy inside LBaaS? | 08:44 |
| Appa | haproxy inside LBaaS | 08:44 |
| Appa | haukebruno: i am successfully able to create load balancer with listener,pool and members | 08:45 |
| Appa | previously haproxy was not running so i hv restarted by assigning different port as 5000 was allready been used | 08:46 |
| haukebruno | Appa, did you implement a health check? maybe icmp or _your service_ is blocked because of secgroup or fwaas rules | 08:46 |
| Appa | how to implement healthcheck? | 08:48 |
| Appa | by adding monitor correct? | 08:48 |
| haukebruno | ah yes | 08:50 |
| haukebruno | monitor is the right term :p | 08:50 |
| Appa | yes i hv | 08:50 |
| haukebruno | Appa, also you can try to reach your backends via icmp or service from inside the lbaas namespace | 08:50 |
| Appa | its giving me issue after adding loadbalancer as - haproxy[8537]: backend ef831df7-8949-4be6-9ca6-5fc3fe4d5f6e has no server available! | 08:50 |
| haukebruno | that will also point out whether somehing is really unreachable or not | 08:51 |
| Appa | icmp? how i should do that | 08:51 |
| haukebruno | just ping from the lbaas namespace to your backend | 08:52 |
| Appa | i could able to ping ip of loadbalancer from my local machine as we as controller node | 08:53 |
| Appa | and after time ping stops due to following issue | 08:54 |
| haukebruno | ok, but the error message means that the haproxy instance isn't able to reach its backends | 08:54 |
| Appa | 2016-09-07 01:53:32.675 23427 ERROR neutron.common.rpc [-] Timeout in RPC method get_ready_devices. Waiting for 24 seconds before next attempt. If the server is not down, consider increasing the rpc_response_timeout option as Neutron server(s) may be overloaded and unable to respond quickly enough. | 08:54 |
| Appa | and getting warning as ... | 08:55 |
| Appa | 2016-09-07 01:55:24.735 23401 WARNING neutron_lbaas.drivers.haproxy.namespace_driver [-] Stats socket not found for loadbalancer 30423244-6e02-41d6-b5d3-e50dd3845e71 | 08:55 |
| haukebruno | so I would suggest to try to ping the backend servers from the haproxy/lbaas namespace (that runs on your lbaas-agent nodes) | 08:55 |
| Appa | i am not sure about haproxy/lbaas namespace | 08:56 |
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| haukebruno | Appa, on the node you installed the lbaas-agent, type 'ip netns' and you'll see all existing namespaces on that node. there should be one 'qlbaas-UUID' | 08:59 |
| haukebruno | then you can try 'ip netns exec qlbaas-UUID ping ...' | 09:00 |
| Appa | i see but there are more then one qlbaas-* | 09:00 |
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| haukebruno | you need to use the UUID of the balancer that throws the error above | 09:02 |
| Appa | haukebruno: ok thanks let me check that | 09:02 |
| haukebruno | it is the same UUID like in horizon or 'neutron lbaas-loadbalancer-list' and stuff | 09:03 |
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| Appa | haukebruno: ok so ping working | 09:36 |
| Appa | ip netns exec qlbaas-30423244-6e02-41d6-b5d3-e50dd3845e71 ping -c | 09:36 |
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| Appa | still its showing - haproxy[10350]: backend ef831df7-8949-4be6-9ca6-5fc3fe4d5f6e has no server available! | 09:43 |
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| Appa | haukebruno: Ohh one thing i hv noticed is in haproxy config file - /var/lib/neutron/lbaas/v2/30423244-6e02-41d6-b5d3-e50dd3845e71/haproxy.conf | 09:49 |
| Appa | its having local ip | 09:49 |
| Appa | and it is not pingable from controller node | 09:50 |
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| haukebruno | Appa, that shouldn't matter. are you able to reach the service on the backends from the namespace? | 10:13 |
| Appa | haukebruno: yes i can able to ping backend floating ip using ip netns exec qlbaas-30423244-6e02-41d6-b5d3-e50dd3845e71 ping -c 3 <backend floating ip> | 10:19 |
| haukebruno | ah sorry, you need to ping the private IP address of the backend | 10:20 |
| Appa | haukebruno: yeah thats the problem | 10:20 |
| Appa | when i am using private ip its not working | 10:20 |
| haukebruno | so there is your problem :P now you need to find out why. secgroup or fwaas could be an issue, or maybe some packetfilter like iptables inside the instances | 10:21 |
| Appa | i hv stopped iptables from instances | 10:22 |
| haukebruno | IIRC the _normal_ flow is FIP -> balancer VIP (private) -> backends (private) | 10:22 |
| Appa | haukebruno: i see | 10:22 |
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| Appa | haukebruno: is it required to have local private ip access from controller node or host from we are running haproxy? | 12:55 |
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