Re: Cloudstack 4.2 on XenServer vs KVM

2014-01-26 Thread Geoff Higginbottom
Of all the cloud deployments we have been involved with (and that's a lot) XenServer has been the most popular Hypervisor by far. A number of deployments were planning on using KVM but switched to XenServer after initial testing for one reason or another. KVM is being used, and where it's a

Re: Connect to a MySQL Galera Cluster

2014-01-26 Thread Shanker Balan
Comments inline. On 26-Jan-2014, at 11:14 am, Shanker Balan shanker.ba...@shapeblue.com wrote: Comments inline. On 26-Jan-2014, at 10:10 am, Francois Gaudreault fgaudrea...@cloudops.com wrote: Yes, we tried with a NetScaler, but as soon as one MySQL dies, both management servers fence

Re: Connect to a MySQL Galera Cluster

2014-01-26 Thread Nux!
On 26.01.2014 04:40, Francois Gaudreault wrote: Yes, we tried with a NetScaler, but as soon as one MySQL dies, both management servers fence themselves on DB exceptions :S I think part of your problem is you run only 2 galera nodes. Thus it is strongly advised that the minimum Galera cluster

Re: Cloudstack 4.2 on XenServer vs KVM

2014-01-26 Thread Nux!
On 26.01.2014 09:47, Geoff Higginbottom wrote: As Shanker says, deploying a cloud with multiple hypervisors is a common approach, ensuring you get the best of both worlds. I think that's the bottom line, there's no one hv to rule them all, so test and use whatever fits your needs. Lucian

Re: Connect to a MySQL Galera Cluster

2014-01-26 Thread Francois Gaudreault
I just noticed some DB HA parameters in the db.properties.in file. Anyone ever tried them? It looks like CloudStack is able to handle slaves and autoReconnectForPool? Francois I was not able to get much information but Looks like it does not manage sessions across the cluster. So if a node

Re: Connect to a MySQL Galera Cluster

2014-01-26 Thread Francois Gaudreault
On 1/26/2014, 5:34 AM, Shanker Balan wrote: The other way would be to make the whole fault tolerance an app problem. If the app could automagically reconfigure itself to do round robin writes across the galera cluster based on health checks, we will get “HA” automatically. A failed node would

installing libvirt 1.0.0 or higher on CentOS 6.5

2014-01-26 Thread chris snow
I need to install the following versions of libvirt and qemu on CentOS 6.5 as listed in the Apache Cloudstack 4.2.0 Installation Guide[1]: - libvirt: 1.0.0 or higher - qemu: 1.0 or higher The CentOS versions are: - libvirt: 0.10.2 - qemu: 0.12.1.2 Question 1) Where can I find rpms that

Re: installing libvirt 1.0.0 or higher on CentOS 6.5

2014-01-26 Thread Nux!
On 26.01.2014 17:45, chris snow wrote: I need to install the following versions of libvirt and qemu on CentOS 6.5 as listed in the Apache Cloudstack 4.2.0 Installation Guide[1]: - libvirt: 1.0.0 or higher - qemu: 1.0 or higher The CentOS versions are: - libvirt: 0.10.2 - qemu: 0.12.1.2

RE: Cloudstack 4.2 on XenServer vs KVM

2014-01-26 Thread John Mancuso
All good advice- thanks everyone! __ John Mancuso | System Engineer | FREEWHEEL mobile: +1 516.652.2475  skype: jmancuso_freewheel www.freewheel.tv SILICON VALLEY • NEW YORK • BEIJING  • LONDON -Original Message-

Urgent : Network stuck in implementing state

2014-01-26 Thread Bjoern Teipel
Hi guys, I had trouble while I was creating a new VLAN and now I can't delete it anymore, because it's stuck in implementing state. I guess that happened after the VR did not came up and I restarted the management server so I could delete the VR and all addresses. If I would spin up a guest, the