Perl 6 - the future is here, just unevenly distributed

IRC log for #fuel, 2016-02-23

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08:07 sc-rm Is there anyway besides starting shutdown of a controller node, to migrate dhcp and router away from the node, so we can do some hardware maintenacen on the node?
08:10 sc-rm The reason I want to tricker it: is that I want to see the services migrate before starting the shutdown of the given controller node
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10:36 Miouge sc-rm: have you checked neutron l3-agent-router-add && neutron l3-agent-router-remove ?
10:40 sc-rm Miouge: Nope, because I had no clue of where to start looking ;-)
10:42 Miouge lquince: if you want cinder to have 5 replicas you can run “ceph osd pool set volumes size 5” on any controller
10:46 sc-rm Miouge: So simply running neutron l3-agent-router-remove on the node I want to take down would force the node to move the router to another controller? I can’t seem to find some documentation for it, do you have a link for it?
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11:01 Miouge sc-rm: Not that simple. you have to remove/add the l3 agent for each router. Here is an example I just tested: http://pastebin.com/Av3Ca60Q
11:03 Miouge I’ll look into if there is a HA mechanism for l3 agents
11:04 sc-rm Miouge: Okay, how did you get the router_id and the new_l3_agent_id ?
11:08 sc-rm Miouge: Figured it out
11:11 sc-rm Miouge: but then there is the question, where do you get the id for the new_l3_agent_id? I guess it’s an id from one of the other nodes i want to move the router to?
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12:00 Miouge sc-rm: “neutron agent-list | grep L3” should help
12:02 sc-rm Miouge: neutron agent-list does not render anything
12:03 sc-rm Miouge: fount the error
12:05 sc-rm Miouge: Works like a charm :-) Now just the same for the dhcp agent
12:14 Miouge From waht I tested with MOS 6.1, when a controller reboots all VMs using a router hosted on that controller loose their default gateway while the server reboots
12:27 sc-rm Miouge: With this movement of the l3 agent I can see that the instances does not loose the default gateway, because the router has been moved to another controller
12:28 Miouge Yep, I just wish that it would be done automatically: if the l3-agent does not answer, the router could be moved to another controller after a set timeout
12:29 sc-rm Miouge: It also does so on MOS 7.0 is my experience, but just wanted to move it before take the current router controller down
13:06 Rodrigo_BR I am using the netapp plugin (NFS) when I try execute the live migrate I recieve the follow error: "[instance: 02c278ba-b79a-49bb-bfd0-b5e7c5667679] Live Migration failure: Unsafe migration: Migration may lead to data corruption if disks use cache != none"
13:28 mwik Is neutron dvr required for floating ips to be handled directly by the compute nodes? If so do they also have to have public ips assigned?
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14:32 Miouge mwik: I think neutron+dvr or nova-network
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17:43 Rodrigo_BR I am using the netapp plugin (NFS) when I try execute the live migrate I recieve the follow error: "[instance: 02c278ba-b79a-49bb-bfd0-b5e7c5667679] Live Migration failure: Unsafe migration: Migration may lead to data corruption if disks use cache != none"
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19:07 xarses Rodrigo_BR: few of us have experience with the NFS migrations, you may have better luck asking the cinder guys about this message or just plow through the code
19:08 xarses my guess is, that as the error message indicates, you have to get the instances rebuilt with disk caching disabled prior to live migrate
19:08 xarses it seems like someone needs submit this to the plugin so they can disable it at deployment
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20:51 Verilium How does pacemaker detect the status of lma_collector to know how/when to shut it down and restart it?
20:53 xarses Verilium: you would have to figure out what pcs says the script is, then you can read that to see what it does
20:55 Verilium I seem to recall talking with pasquier-s about something related to this a while back, but hmm...
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21:39 xarses Verilium: probably, but it's past his working hours (he is in central europe) and is likely sleeping
21:42 Verilium Someone else with a bug similar to mine, I'll post in there.  https://bugs.launchpad.net/fuel/+bug/1531509  Thanks.
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23:50 Karim_ Hi folks
23:50 Karim_ has anyone ever run on "Error running RPC method verify_networks: Network verification not avaliable because nodes ["10", "13", "14"] not avaliable via mcollective,"
23:53 Karim_ mco ping for these nodes work fine

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