[Openstack-operators] Problem with multiple nova-consoleauth

Emilien Macchi emilien.macchi at enovance.com
Mon May 13 14:08:10 UTC 2013


Interesting bugs, thank's. But I'm not sure they concern nova-consoleauth in my opinion. 

Is somebody here still working on Folsom ? I'm curious if nova-consoleauth is working in active / active too. 


----- Original Message -----

From: "Daneyon Hansen (danehans)" <danehans at cisco.com> 
To: "Emilien Macchi" <emilien.macchi at enovance.com>, "Juan José Pavlik Salles" <jjpavlik at gmail.com> 
Cc: openstack-operators at lists.openstack.org 
Sent: Monday, May 13, 2013 3:52:25 PM 
Subject: Re: [Openstack-operators] Problem with multiple nova-consoleauth 


Keep in mind there are a couple memcached bugs that were recently resolved in 2013.1.1: 

https://bugs.launchpad.net/nova/+bug/1158958 
https://bugs.launchpad.net/nova/+bug/1160900 

Regards, 
Daneyon Hansen 
Software Engineer 
Email: danehans at cisco.com 
Phone: 303-718-0400 
http://about.me/daneyon_hansen 

From: Emilien Macchi < emilien.macchi at enovance.com > 
Date: Monday, May 13, 2013 1:38 AM 
To: Juan José Pavlik Salles < jjpavlik at gmail.com > 
Cc: " openstack-operators at lists.openstack.org " < openstack-operators at lists.openstack.org > 
Subject: Re: [Openstack-operators] Problem with multiple nova-consoleauth 

Hi, 


We are running : 


    * 2 memcached servers on dedicated nodes 
    * 2 nova-consoleauth with memcached_servers flag in nova.conf (don't forget to install python-memcache on nova-consoleauth nodes) 
    * 2 nova-html5proxy in load balancing with HAproxy in front-end. 
It works fine. 


Cheers ! 


Emilien 


----- Original Message -----

From: "Juan José Pavlik Salles" < jjpavlik at gmail.com > 
To: "Sam Morrison" < sorrison at gmail.com > 
Cc: openstack-operators at lists.openstack.org 
Sent: Monday, May 13, 2013 2:37:56 AM 
Subject: Re: [Openstack-operators] Problem with multiple nova-consoleauth 

Great, thank guys!!, Should i run one memcache server??? instead of running many of them, one in every compute node, using the configuration John Dewey says. 


2013/5/12 Sam Morrison < sorrison at gmail.com > 



If you run multiple consoleauths they need to talk to the same memcached server. 

Sam 


On 12/05/2013, at 11:46 AM, Juan José Pavlik Salles < jjpavlik at gmail.com > wrote: 


<blockquote>



Hi guys, on friday i was trying to reach my vms through novnc proxy and i ran into some kind of odd behaviour. One every two attempts were successfull so we started watching logs. after a couple of hours stopping and starting services we realized that this strange behaviour was due to we had two nova-consoleauth instances running, one per compute node. We stopped one of the instances a everything started to work just fine, even both novncproxies. 
I found this https://bugs.launchpad.net/nova/+bug/989337 but it's suppossed to be fixed in folsom, and i'm running grizzly. 

Should i run just one instance of nova-consoleauth? 
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</blockquote>




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Pavlik Salles Juan José 

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