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From Shalom Sagges <>
Subject Re: Openstack and Cassandra
Date Tue, 27 Dec 2016 09:21:19 GMT
Hi Romain,

Thanks for the input!

We currently use the Kilo release of Openstack. Are you aware of any known
bugs/issues with this release?
We definitely defined anti-affinity rules regarding spreading C* on
different hosts. (I surely don't want to be woken up at night due to a
failed host ;-) )

Regarding Trove, I doubt we'll use it in Production any time soon.

Thanks again!

Shalom Sagges
T: +972-74-700-4035
<> <>
<> We Create Meaningful Connections

On Mon, Dec 26, 2016 at 7:37 PM, Romain Hardouin <>

> Hi Shalom,
> I assume you'll use KVM virtualization so pay attention to your stack at
> every level:
> - Nova e.g. CPU pinning, NUMA awareness if relevant, etc. Have a look to
> extra specs.
> - libvirt
> - KVM
> - QEMU
> You can also be interested by resources quota on other OpenStack VMs that
> will be colocated with C* VMs.
> Don't forget to define anti-affinity rules in order to spread out your C*
> VMs on different hosts.
> Finally, watch out versions of libvirt/KVM/QEMU. Some optimizations/bugs
> are good to know.
> Out of curiosity, which OpenStack release are you using?
> You can be interested by Trove but C* support is for testing only.
> Best,
> Romain

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