Re: Openstack and Cassandra

Thanks for the info Romain, Can you tell me please what are the implications of not using CPU Pinning? Shalom Sagges DBA T: +972-74-700-4035 We Create Meaningful Connections

Re: Openstack and Cassandra

Kilo is a bit old but the good news is that CPU pinning is available which IMHO is a must to run C* on Production.Of course your bottleneck will be shared HDDs. Best, Romain Le Mardi 27 décembre 2016 10h21, Shalom Sagges a écrit : Hi Romain,  Thanks for the input! We currently use the

Re: Openstack and Cassandra

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 ;-) )

Re: Openstack and Cassandra

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 w

Re: Openstack and Cassandra

Thanks for the info Aaron! I will test it in hope there will be no issues. If no issues will occur, this could actually be a good idea and would save a lot of resources. Have a great day! Shalom Sagges DBA T: +972-74-700-4035

Re: Openstack and Cassandra

Shalom, We (Target) have been challenged by our management team to leverage OpenStack whenever possible, and that includes Cassandra. I was against it at first, but we have done some stress testing with it and had application teams try it out. So far, there haven't been any issues. A good use c

Re: Openstack and Cassandra

Thanks Vladimir! I guess I'll just have to deploy and continue from there. Shalom Sagges DBA T: +972-74-700-4035 We Create Meaningful Connections

Re: Openstack and Cassandra

Hi Shalom, I don't see any reason why it wouldn't work, but obviously, any resource sharing affects performance. You can expect less degradation with SSD disks, I guess. Best regards, Vladimir Yudovin, Winguzone - Cloud Cassandra Hosting On Wed, 21 Dec 2016 13:31:22 -0500 Sh

Openstack and Cassandra

Hi Everyone, I am looking into the option of deploying a Cassandra cluster on Openstack nodes instead of physical nodes due to resource management considerations. Does anyone has any insights regarding this? Can this combination work properly? Since the disks (HDDs) are part of one physical machi