Re: [Openstack] Bringing High Availability to OpenStack Keystone and Glance

We have a prototype of similar capabilities targeting Nova services, using ZooKeeper (heartbeat/membership, leader election, etc -- will share with the community soon). Would be interesting to compare the two approaches. Regards, Alex From: Martin Gerhard Loschwitz

Re: [Openstack] Default reply to behavior for mailing list

From: Daniel P. Berrange berra...@redhat.com On Tue, Jul 31, 2012 at 10:50:02AM -0700, Bhuvaneswaran A wrote: Stefano, If a subscriber reply to a mailing list message, it's sent to the author only. Each subscriber should use Reply to All every time, to post a reply to mailing list.

[Openstack] instance evacuation from a failed node (rebuild for HA)

Alex Glikson Manager, Cloud Operating System Technologies, IBM Haifa Research Lab http://w3.haifa.ibm.com/dept/stt/cloud_sys.html | https://www.research.ibm.com/haifa/dept/stt/cloud_sys.shtml Email: glik...@il.ibm.com | Phone: +972-4-8281085

Re: [Openstack] instance evacuation from a failed node (rebuild for HA)

From: Ryan Lane rl...@wikimedia.org We have submitted a patch https://review.openstack.org/#/c/11086/ to address https://blueprints.launchpad.net/nova/+spec/rebuild-for-ha that simplifies recovery from a node failure by introducing an API that recreates an instance on *another* host

Re: [Openstack] Discussion about where to put database for bare-metal provisioning (review 10726)

Can you elaborate what is the purpose of this database? If we compare it to KVM support, the 'primary' location of VMs' metadata is in libvirt internal store (outside of Nova), and then it is cached in Nova DB, for Nova purposes. A similar approach might make for bare-metal machines too -- keep

[Openstack] reservation of CPU cores?

. Alex Glikson Manager, Cloud Operating System Technologies, IBM Haifa Research Lab http://w3.haifa.ibm.com/dept/stt/cloud_sys.html | https://www.research.ibm.com/haifa/dept/stt/cloud_sys.shtml Email: glik...@il.ibm.com | Phone: +972-4-8281085 | Mobile: +972-54-647 | Fax: +972

[Openstack] workflows in OpenStack?

Are there any additional details regarding the usage of workflows in Horizon? http://docs.openstack.org/developer/horizon/ref/workflows.html Is this something that can be also reused outside of Horizon, in the broader context of workflows for OpenStack? Thanks, Alex

[Openstack] usability of putting host in maintenance mode in Nova

Was great to see many stackers at the summit! Following-up on one of the design discussions, the consensus seemed to be that the operation which puts a host in maintenance mode should probably only disable further provisioning requests to that host, while the orchestration of migrating the

Re: [Openstack] VM disk affinity during live migration

Alex Glikson Manager, Cloud Operating System Technologies, IBM Haifa Research Lab http://w3.haifa.ibm.com/dept/stt/cloud_sys.html | http://www.research.ibm.com/haifa/dept/stt/cloud_sys.shtml Email: glik...@il.ibm.com | Phone: +972-4-8281085 | Mobile: +972-54-647 | Fax: +972-4

Re: [Openstack] Benefits for moving live migration/resize/code migration/provision to conductor

One of the goals was to separate between instance placement calculation logic and the orchestration logic, having each in a separate runtime (see https://blueprints.launchpad.net/nova/+spec/query-scheduler). Scheduler and conductor (respectively) seemed like a reasonable choice. Regards, Alex

Re: [Openstack] How can I recover my VM on a broken hardware?

Try nova evacuate VM1 compute-node2 --on-shared-storage. Regards, Alex From: Ray Sun xiaoq...@gmail.com To: OpenStack Maillist openstack@lists.launchpad.net, Date: 24/06/2013 07:04 AM Subject:[Openstack] How can I recover my VM on a broken hardware? Sent by:Openstack