> > with a simple rsync script that runs on a periodic interval that syncs the > image data. > >> Compute servers >> * Each run their own copy of nova-api (only instances running on the >> node use this) > > No. Compute nodes run nova-compute, not nova-api. > I think the intent here was to have access to the metadata service on each compute node - hence running both n-compute and n-API (this also avoids issues in getting metadata requests between nodes)
>> * nova-network (multi-host configuration) with private network <-- Needs >> its own discussion I guess. >> >> Keystone >> * How about keystone, same as glance I guess? > > Similar to glance-registry. > > Cheers, > -jay > >> Best regards, >> >> Tristan van Bokkem >> Datacenter Operations >> >> Contact: >> E-mail Personal: tristanvanbok...@i3d.net <mailto:tristanvanbok...@i3d.net> >> E-mail Support: i...@i3d.net <mailto:i...@i3d.net> >> E-mail NOC: n...@i3d.net <mailto:n...@i3d.net> >> Website: http://www.i3d.net Office: >> Interactive 3D B.V. >> Meent 93b >> 3011 JG Rotterdam >> The Netherlands >> >> Visit www.smartdc.net – SmartDC is our in-house 36,000 sq. ft. >> datacenter in Rotterdam, The Netherlands. High density hosting – >> multiple fiber carriers in-house – Level3 PoP. >> >> Interactive 3D (i3D.net) is a company registered in The Netherlands at >> Meent 93b, Rotterdam. Registration #: 14074337 - VAT # NL >> 8202.63.886.B01. Interactive 3D (i3D.net) is CDSA certified on content >> protection and security. We are ranked in the Deloitte Technology Fast >> 50 as one of the fastest growing technology companies. >> >> ------------------------------------------------------------------------ >> *From:* Dan Wendlandt [mailto:d...@nicira.com] >> *To:* Ghe Rivero [mailto:ghe.riv...@stackops.com] >> *Cc:* netst...@lists.launchpad.net, darren.birk...@gmail.com, >> openstack@lists.launchpad.net >> *Sent:* Tue, 21 Feb 2012 18:13:55 +0100 >> *Subject:* Re: [Openstack] Howto Nova setup with HA? >> >> >> >> 2012/2/21 Ghe Rivero <ghe.riv...@stackops.com >> <mailto:ghe.riv...@stackops.com>> >> >> BigSwitch and Nicira have created different blueprints in >> quantum to add their plugins for essex-4 about ten days ago, >> Cisco already have it included almost from the beginning. No >> news of them for the moment, but i really hope that both of them >> make it in time! >> Ghe Rivero >> >> https://blueprints.launchpad.net/quantum/+spec/quantum-nvp-plugin >> >> https://blueprints.launchpad.net/quantum/+spec/quantum-bigswitch-plugin >> >> >> To be clear, there are several more existing and planned plugins for >> Quantum, even beyond the three you mention. Each plugin will make >> its own trade-offs in terms of HA for control plane and data plane >> components. I'm planning on organizing a talk at the Folsom >> summit/conference where people have a chance to talk about their >> plugins. No need for a flame war here :) >> >> One other point of confusion that I'd like to address is that there >> is NO requirement that a plugin be merged into the main Quantum repo >> for it to be a "valid" plugin. I know of several plugins that are >> used despite not being merged in (in fact, at the summit, we're >> going to discuss if ANY plugins should remain in the main repo... >> this is likely a larger decision that should be made consistently >> across all openstack projects). >> >> Dan >> >> >> >> 2012/2/21 Diego Parrilla Santamaría >> <diego.parrilla.santama...@gmail.com >> <mailto:diego.parrilla.santama...@gmail.com>> >> >> This is the kind of flame war I love... ;-) >> >> if you think the HA challenges in Openstack Nova are at >> MySQL and Rabbit level, you are not putting the focus on the >> right components. The biggest HA (and scalability) >> challenges in Nova are in the networking side. There are a >> lot of companies tackling the networking challenges of Nova >> (BigSwitch, Nicira, Cisco, etc...), and I would like to see >> how they evolve in the future and how they will address this >> problem. Right now, only promises. >> >> Fight! >> -- >> Diego Parrilla >> <http://www.stackops.com/>*CEO* >> **www.stackops.com* <http://www.stackops.com/> | >> *diego.parri...@stackops.com >> <mailto:diego.parri...@stackops.com>****| +34 649 94 43 29 >> <tel:%2B34%20649%2094%2043%2029> | skype:diegoparrilla* >> * <http://www.stackops.com/> >> ** >> >> >> >> On Tue, Feb 21, 2012 at 1:04 PM, i3D.net - Tristan van >> Bokkem <tristanvanbok...@i3d.nl >> <mailto:tristanvanbok...@i3d.nl>> wrote: >> >> __ >> Hi Darren, >> >> No, I am not looking at a performance increasment at >> this moment. Just trying to make the different >> components Nova is build on redundant. Of course a >> master/master setup of mysql / rabbitmq with a floating >> IP will probably work but it bugs me that Nova is not >> really build with flexibility of it components in mind. >> >> I understand it is impossible to cover every scenario >> and you can make things redundant into the infinitive >> but why doesn't have Nova any of this build in? Why do I >> need to setup a Virtual IP/floating IP where Nova simple >> could accept multiple locations and failover if the >> first location fails. Or even round-robin to distribute >> the load. All I am doing now is yet add another >> component that can possibly fail as well. >> >> >> Best regards, >> >> Tristan van Bokkem >> Datacenter Operations >> >> Contact: >> E-mail Personal: tristanvanbok...@i3d.net >> <mailto:tristanvanbok...@i3d.net> >> E-mail Support: i...@i3d.net <mailto:i...@i3d.net> >> E-mail NOC: n...@i3d.net <mailto:n...@i3d.net> >> Website: http://www.i3d.net Office: >> Interactive 3D B.V. >> Meent 93b >> 3011 JG Rotterdam >> The Netherlands >> >> Visit www.smartdc.net <http://www.smartdc.net> – SmartDC >> is our in-house 36,000 sq. ft. datacenter in Rotterdam, >> The Netherlands. High density hosting – multiple fiber >> carriers in-house – Level3 PoP. >> >> Interactive 3D (i3D.net) is a company registered in The >> Netherlands at Meent 93b, Rotterdam. Registration #: >> 14074337 - VAT # NL 8202.63.886 <tel:8202.63.886>.B01. >> Interactive 3D (i3D.net) is CDSA certified on content >> protection and security. We are ranked in the Deloitte >> Technology Fast 50 as one of the fastest growing >> technology companies. >> >> >> ------------------------------------------------------------------------ >> *From:* Darren Birkett >> [mailto:darren.birk...@gmail.com >> <mailto:darren.birk...@gmail.com>] >> *To:* i3D.net - Tristan van Bokkem >> [mailto:tristanvanbok...@i3d.nl >> <mailto:tristanvanbok...@i3d.nl>] >> *Cc:* Florian Haas [mailto:flor...@hastexo.com >> <mailto:flor...@hastexo.com>], >> openstack@lists.launchpad.net >> <mailto:openstack@lists.launchpad.net> >> *Sent:* Tue, 21 Feb 2012 12:51:11 +0100 >> >> *Subject:* Re: [Openstack] Howto Nova setup with HA? >> >> Surely it depends what you want out of it? If just >> pure high >> availability (ie ability to continue functioning >> when primary node >> goes down), then doesn't a master/master with >> floating IP fit the >> bill? >> >> It sounds like what you're after is better >> performance/throughput >> rather than HA - the ability to write to multiple >> masters at the same >> time. Even here if nova *was* able to hit multiple >> databases, a >> master/master setup isn't going to suit, as each >> write to one master >> still needs to be replicated to the other so >> throughput is going to be >> the same. You'd then need to look to something like >> a native mysql >> cluster to get actual increased throughput. >> >> Darren >> >> On 21 February 2012 11:34, i3D.net - Tristan van Bokkem >> >> <tristanvanbok...@i3d.nl >> <mailto:tristanvanbok...@i3d.nl>> wrote: >> > Ho Florian, >> > >> > I respect your opinion of course and I am not >> here to start a fight. Point >> > is, how I understand it Nova really isn't very >> flexible on High Availability >> > terms. I have now a master/master mysql setup >> with a Virtual IP working just >> > to work around the shortcomings Nova imo >> introduces. This same story goes >> > for RabbitMQ, I need to setup RabbitMQ in HA >> (which is fine) but I need to >> > setup a Virtual IP for it as well just so Nova >> can correctly connect to it. >> > Without the VIP the hole point of setting it up >> in a cluster is useless as >> > you still will point nova to one single host. >> > >> > It shouldn't be that hard to make Nova listen to >> multiple mysql addresses >> > and rabbitmq hosts in a cluster? >> > >> > >> > Best regards, >> > >> > Tristan van Bokkem >> > Datacenter Operations >> > >> > Contact: >> > E-mail Personal: tristanvanbok...@i3d.net >> <mailto:tristanvanbok...@i3d.net> >> > E-mail Support: i...@i3d.net <mailto:i...@i3d.net> >> > E-mail NOC: n...@i3d.net <mailto:n...@i3d.net> >> > Website: http://www.i3d.net Office: >> > Interactive 3D B.V. >> > Meent 93b >> > 3011 JG Rotterdam >> > The Netherlands >> > >> > Visit www.smartdc.net <http://www.smartdc.net> – >> SmartDC is our in-house 36,000 sq. ft. datacenter in >> > Rotterdam, The Netherlands. High density hosting >> – multiple fiber carriers >> > in-house – Level3 PoP. >> > >> > Interactive 3D (i3D.net) is a company registered >> in The Netherlands at Meent >> > 93b, Rotterdam. Registration #: 14074337 - VAT # >> NL 8202.63.886 <tel:8202.63.886>.B01. >> > Interactive 3D (i3D.net) is CDSA certified on >> content protection and >> > security. We are ranked in the Deloitte >> Technology Fast 50 as one of the >> > fastest growing technology companies. >> > >> > ________________________________ >> > From: Florian Haas [mailto:flor...@hastexo.com >> <mailto:flor...@hastexo.com>] >> > To: openstack@lists.launchpad.net >> <mailto:openstack@lists.launchpad.net> >> > Sent: Fri, 17 Feb 2012 13:32:51 +0100 >> > >> > Subject: Re: [Openstack] Howto Nova setup with HA? >> > >> > On Thu, Feb 16, 2012 at 3:28 PM, i3D.net - >> Tristan van Bokkem >> > <tristanvanbok...@i3d.nl >> <mailto:tristanvanbok...@i3d.nl>> wrote: >> >> Hi Tom, >> >> >> >> Thank you very much for sharing your knowledge, >> this will help not only >> >> me! >> >> As I am still working on the MySQL part, you >> mentioned multi-master which >> >> I >> >> have running indeed, but I suppose there still >> will need to be some kind >> >> of >> >> entering point within the cluster. How did you >> managed this? >> > >> > Virtual cluster IP addresses and highly available >> MySQL (either DRBD >> > or MySQL replication based). Pacemaker is very >> well capable of >> > managing this. >> > >> > Of course, since you also quoted >> > >> >> http://openlife.cc/blogs/2011/july/ultimate-mysql-high-availability-solution >> > parts of which I wholeheartedly disagree with (as >> with all of Henrik's >> > Pacemaker bashing, but he's of course entitled to >> his own opinion), >> > then you might run away screaming from anything >> that barely mentions >> > Pacemaker in passing. But in reality[1], >> Pacemaker is an extremely >> > capable HA stack that would be well suited for this. >> > >> > Cheers, >> > Florian >> > >> > [1] To be polite, I should say "in my humble >> opinion," but my opinion >> > on this really isn't humble at all, so I prefer >> being honest over >> > being polite. :) >> > >> > -- >> > Need help with High Availability? >> > http://www.hastexo.com/now >> > >> > _______________________________________________ >> > Mailing list: https://launchpad.net/~openstack >> <https://launchpad.net/%7Eopenstack> >> > Post to : openstack@lists.launchpad.net >> <mailto:openstack@lists.launchpad.net> >> > Unsubscribe : https://launchpad.net/~openstack >> <https://launchpad.net/%7Eopenstack> >> > More help : https://help.launchpad.net/ListHelp >> > >> > >> > _______________________________________________ >> > Mailing list: https://launchpad.net/~openstack >> <https://launchpad.net/%7Eopenstack> >> > Post to : openstack@lists.launchpad.net >> <mailto:openstack@lists.launchpad.net> >> > Unsubscribe : https://launchpad.net/~openstack >> <https://launchpad.net/%7Eopenstack> >> > More help : https://help.launchpad.net/ListHelp >> > >> >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~openstack >> <https://launchpad.net/%7Eopenstack> >> Post to : openstack@lists.launchpad.net >> <mailto:openstack@lists.launchpad.net> >> Unsubscribe : https://launchpad.net/~openstack >> <https://launchpad.net/%7Eopenstack> >> More help : https://help.launchpad.net/ListHelp >> >> >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~openstack >> <https://launchpad.net/%7Eopenstack> >> Post to : openstack@lists.launchpad.net >> <mailto:openstack@lists.launchpad.net> >> Unsubscribe : https://launchpad.net/~openstack >> <https://launchpad.net/%7Eopenstack> >> More help : https://help.launchpad.net/ListHelp >> >> >> >> >> -- >> Ghe Rivero >> *OpenStack & Distribution Engineer >> ***www.stackops.com* <http://www.stackops.com/> | >> *ghe.riv...@stackops.com >> <mailto:diego.parri...@stackops.com>****| +34 625 63 45 23 | >> skype:ghe.rivero* >> * <http://www.stackops.com/> >> * >> >> **** >> >> * >> >> ******************** ADVERTENCIA LEGAL ******************** >> Le informamos, como destinatario de este mensaje, que el correo >> electrónico y las comunicaciones por medio de Internet no >> permiten asegurar ni garantizar la confidencialidad de los >> mensajes transmitidos, así como tampoco su integridad o su >> correcta recepción, por lo que STACKOPS TECHNOLOGIES S.L. no >> asume responsabilidad alguna por tales circunstancias. 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