[Openstack] Howto Nova setup with HA?

i3D.net - Tristan van Bokkem tristanvanbokkem at i3d.nl
Tue Feb 21 14:40:55 UTC 2012


Yes, thank you.

Best regards,

Tristan van Bokkem
Datacenter Operations

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From: Darren Birkett [mailto:darren.birkett at gmail.com]
To: Michael Stein [mailto:Michael.Stein at q9.com]
Cc: Diego Parrilla Santamaría [mailto:diego.parrilla.santamaria at gmail.com], i3D.net - Tristan van Bokkem [mailto:tristanvanbokkem at i3d.nl], openstack at lists.launchpad.net
Sent: Tue, 21 Feb 2012 15:36:23 +0100
Subject: Re: [Openstack] Howto Nova setup with HA?

2012/2/21 Michael Stein <Michael.Stein at q9.com>:
  > I think that the idea behind Nova and “cloud” computing, in general, is that
  > applications, middle-ware, databases and other services, will be delivered
  > across multiple availability zones and provide HA via application-layer
  > replication.  The concept of failure is assumed and designed for by any
  > forward thinking “cloud” designer.  I think less time need to be spent on
  > preserving nodes that maintain the “holy grail” of functionality and
  > availability and more time needs to be spent on making apps cloud-friendly.
  
  Agreed, but you're talking about HA at a different layer - within the
  applications that will sit on top of the cloud infrastructure.  Whilst
  that's absolutely valid, and a message that needs to be spread more
  amongst those designing apps for the cloud, it's not addressing the
  concerns of the OP.
  
  We still need to be thinking about HA of the cloud infrastructure
  components themselves, so that there are less failures for the app
  designers to have to tolerate in the first place.
  
  Darren
    
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