← Back to team overview

openstack team mailing list archive

Re: Howto Nova setup with HA?

 

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


2012/2/21 Diego Parrilla Santamaría <diego.parrilla.santamaria@xxxxxxxxx>

> 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 | * diego.parrilla@xxxxxxxxxxxx** | +34 649 94 43 29 |
> skype:diegoparrilla*
> * <http://www.stackops.com/>
> **
>
>
>
> On Tue, Feb 21, 2012 at 1:04 PM, i3D.net - Tristan van Bokkem <
> tristanvanbokkem@xxxxxx> 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: tristanvanbokkem@xxxxxxx
>> E-mail Support: info@xxxxxxx
>> E-mail NOC: noc@xxxxxxx
>> 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:* Darren Birkett [mailto:darren.birkett@xxxxxxxxx]
>> *To:* i3D.net - Tristan van Bokkem [mailto:tristanvanbokkem@xxxxxx]
>> *Cc:* Florian Haas [mailto:florian@xxxxxxxxxxx],
>> openstack@xxxxxxxxxxxxxxxxxxx
>> *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
>>
>> <tristanvanbokkem@xxxxxx> 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: tristanvanbokkem@xxxxxxx
>> > E-mail Support: info@xxxxxxx
>> > E-mail NOC: noc@xxxxxxx
>> > 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: Florian Haas [mailto:florian@xxxxxxxxxxx]
>> > To: openstack@xxxxxxxxxxxxxxxxxxx
>> > 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
>> > <tristanvanbokkem@xxxxxx> 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
>> > Post to : openstack@xxxxxxxxxxxxxxxxxxx
>> > Unsubscribe : https://launchpad.net/~openstack
>> > More help : https://help.launchpad.net/ListHelp
>> >
>> >
>> > _______________________________________________
>> > Mailing list: https://launchpad.net/~openstack
>> > Post to     : openstack@xxxxxxxxxxxxxxxxxxx
>> > Unsubscribe : https://launchpad.net/~openstack
>> > More help   : https://help.launchpad.net/ListHelp
>> >
>>
>>
>> _______________________________________________
>> Mailing list: https://launchpad.net/~openstack
>> Post to     : openstack@xxxxxxxxxxxxxxxxxxx
>> Unsubscribe : https://launchpad.net/~openstack
>> More help   : https://help.launchpad.net/ListHelp
>>
>>
>
> _______________________________________________
> Mailing list: https://launchpad.net/~openstack
> Post to     : openstack@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~openstack
> More help   : https://help.launchpad.net/ListHelp
>
>


-- 
Ghe Rivero
*OpenStack & Distribution Engineer
**www.stackops.com | * ghe.rivero@xxxxxxxxxxxx <diego.parrilla@xxxxxxxxxxxx>
** | +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.
Si no consintiese en la utilización del correo electrónico o de las
comunicaciones vía Internet le rogamos nos lo comunique y ponga en nuestro
conocimiento de manera inmediata. Este mensaje va dirigido, de manera
exclusiva, a su destinatario y contiene información confidencial y sujeta
al secreto profesional, cuya divulgación no está permitida por la ley. En
caso de haber recibido este mensaje por error, le rogamos que, de forma
inmediata, nos lo comunique mediante correo electrónico remitido a nuestra
atención y proceda a su eliminación, así como a la de cualquier documento
adjunto al mismo. Asimismo, le comunicamos que la distribución, copia o
utilización de este mensaje, o de cualquier documento adjunto al mismo,
cualquiera que fuera su finalidad, están prohibidas por la ley.

***************** PRIVILEGED AND CONFIDENTIAL ****************
We hereby inform you, as addressee of this message, that e-mail and
Internet do not guarantee the confidentiality, nor the completeness or
proper reception of the messages sent and, thus, STACKOPS TECHNOLOGIES S.L.
does not assume any liability for those circumstances. Should you not agree
to the use of e-mail or to communications via Internet, you are kindly
requested to notify us immediately. This message is intended exclusively
for the person to whom it is addressed and contains privileged and
confidential information protected from disclosure by law. If you are not
the addressee indicated in this message, you should immediately delete it
and any attachments and notify the sender by reply e-mail. In such case,
you are hereby notified that any dissemination, distribution, copying or
use of this message or any attachments, for any purpose, is strictly
prohibited by law.

Follow ups

References