Perl 6 - the future is here, just unevenly distributed

IRC log for #fuel, 2014-02-10

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14:01 Dr_Drache morning #fuel!
14:03 evgeniyl` good evening Dr_Drache :)
14:06 Dr_Drache blah. evening. damn.... eastern europeans (spelling, but is that even correct location assumption?)
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14:18 mattymo Dr_Drache, many in Russia believe Europe to be a separate continent from Russia
14:19 Dr_Drache ahhh, i thought that I a typed.
14:19 Dr_Drache as I typed.
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14:22 Dr_Drache I just have an issue with that, being, the last time it was explained to me, the "line" wasn't at all following anything continental. just goverment lines.
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14:41 TVR__ Dr_Drache .. you must hate the oceans and their naming... after all, not only do most all of them connect, but the water called one ocean suddenly becomes water called another ocean.... at least the land doesn't move .... much...
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16:26 phamby Hello all. I'm having a bit of trouble getting a HA setup to actually be HA and was wondering if anyone was around that might be able to help. I've deployed Havana on Ubuntu 12.04 using Fuel 4.0.
16:26 MiroslavAnashkin phamby, So, what is your issue?
16:29 phamby When all three controllers are up, everything is fine, but when I power one of the nodes off, some or all services are down. For instance, in the test I just performed, I powered down one controller and was unable to talk to heat. I was also unable to ssh into a vm that I had provisioned earlier
16:33 phamby CRM status is here: https://gist.github.com/paulhamby/8919259
16:34 MiroslavAnashkin phamby, It depends on quorum. 3 controller nodes is minimum for HA cluster.
16:35 MiroslavAnashkin phamby, gimme 5 minutes, i'll reboot my PC.
16:35 phamby ok, thanks!
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16:55 MiroslavAnashkin phamby: Please check if Galera cluster has quorum. Please run `mysql -e "show status like 'wsrep%';"` on any controller.
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17:00 phamby appears to be fine. wsrep_local_state_comment=Synced, wsrep_ready=On,wsrep_cluster_size=3,
17:02 phamby That status is with all 3 nodes powered on and working. Did you want the status when one of the nodes is powered off?
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17:06 phamby I suppose I should be more clear about my goal, as well. I'm trying to simulate a failure scenario where one node is unreachable in order to test  High Availability, so that when we provision a cluster in production, we will know what to expect.
17:09 MiroslavAnashkin phamby: Then, simply poweroff one node and wait about 5 minutes, It may require 5 minutes to Pacemaker to move network agents from powered down node.
17:12 phamby That is how I have been performing my tests, and so far, have not had great luck. I will perform the test now and report back my results
17:21 Dr_Drache MiroslavAnashkin, good evening.
17:22 MiroslavAnashkin Dr_Drache: good morning.
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17:51 phamby Results from latest HA test:
17:51 phamby Power pulled on node-115 at 17:14. Lost connectivity to the test provisioned VM. I waited approximately 10-15 minutes until taking any action to restore connectivity. A "nova-manage service list" showed nova-compute on the compute node as unhealthy. Restarted the service, no change. A "crm resource restart p_neutron-l3-agent" appeared to restore connectivity back to the test VM.
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18:03 MiroslavAnashkin phamby: Could you please repeat your experiment, but instead of powering down the third controller, please poweroff the controller where L3-agent is currently running.
18:05 phamby MiroslavAnashkin: I'd be happy to. Going to grab some lunch first and then I'll report back my findings. Thanks for your help so far!
18:05 MiroslavAnashkin phamby: And, actually, max time to switch agents in 4.0 is less than minute, last time I asked you to wait 5 minutes to check if there is Pacemaker bug. So, please wait no longer than minute after controller poweroff.
18:05 phamby ok
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18:53 Dr_Drache MiroslavAnashkin, how are we on that patch?
18:53 Dr_Drache (not rushing, just figured i'd ask)
18:54 MiroslavAnashkin Assembling it to one piece.
18:54 Dr_Drache cool cool
18:54 Dr_Drache no rush, I am not sure I can get to it today even.
18:55 MiroslavAnashkin Mee too:)
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