Hi, Thank you for the work on making nova components HA. Did you have a chance to move further in this topic? I especially interested in making nova-network HA and looking for possible active-active implementations, so the downtime of the service would me minimal.
Thank you, On Tue, May 3, 2011 at 1:22 PM, Edward Konetzko <[email protected]>wrote: > I have attached the slides and Tushar Patil doc on making nova-network ha > along with the etherpad notes on the bottom. > > > I hope to follow this email up later on in the week with plans for a full > reference document based on Cacti. Thanks for everyone’s participation at > the Summit. > > Thanks > Edward Konetzko > > Etherpad notes > > > This Etherpad is for the > Discussion on Design & Software Considerations for Making Nova HA/Fault > Tolerant > Please put ideas or comments in the appropriate sections > > > Database > - Does zones alleviate the need for HAing the DB? > > > > RabbitMQ > For comparison http://wiki.secondlife.com/**wiki/Message_Queue_Evaluation_ > **Notes <http://wiki.secondlife.com/wiki/Message_Queue_Evaluation_Notes> > - Need to update managers to create persistant queues and messages > - XMPP an alternate? > Talk to RabbitMQ devs about > - Long term can we use Burrow? > > > Nova-Network > NTT Data documentation mailed to openstack list for their heartbeat POC > tests > Are there issues running multiple network nodes and assigning the same IP > to mutlple instances? > How about VRRP protocol? > --> we (NTT) are planning to evaluate VRRP using keepalived or some other > software. Does anyone knows suitable software? > > > Nova-scheduler > Vish said you can run more then one > - Yeah with zones and how the scheduler is structured now, it can > > > Nova-api > Possibliy to run this behind real web server, apache, nginx > > > Nova-volume > > Nova-Objectstore > > Nova-Compute > > > Other ideas > Services should use dns srv records or something to automate service > discovery, this would make running large infrastructures and ipv6 > configureation alot easier. > - zeroconf? -<-- like the idea but anyone can announce anything in > zeroconf it has no idea of a master for security. > Agreed > Look at vrrp and keepalived > > > Take aways > Start Discussion with Rabbitmq > Message Bus needs more investigation > Discussion on how do we make messages have delievery > Give feed back to end user, fail or pass just dont leave state in pending > forever > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > > -- Mike Scherbakov
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