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Questions tagged [openstack-nova]

Openstack's Compute is a component that can be used to host and manage systems

98 questions
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Openstack: What the difference between nova migrate and nova evacuate?

On liberty, I've been searching for a way to "empty" a hypervisor from all its VMs. At the nova client docs, I've found the following commands related to this: nova evacuate : Evacuate server from failed host. nova migrate : Migrate a server. The…
G. Kaklam.
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Is it possible to monitor how OpenStack is allocating virtual infrastructure on a physical one?

I've been wondering whether there's a tool for monitoring how OpenStack is using physical resources (cluster [cpus, ram], network [interfaces, switches]) for its virtual infrastructures? The virtual infrastructures are visible in Horizon, however…
Michal
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Virtualization limits for Ubuntu Server 14.04 LTS with KVM?

Essentially I'm after something like this: Virtualization limits for Red Hat Enterprise Linux with KVM but for Ubuntu Server 14.04 LTS. I'm trying to create some KVM guests with very large 1TB+ RAM (through OpenStack Nova). I can boot the 1TB VM…
El Peso Muerto
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Openstack: Is it possible to migrate an instance from a dead compute server to a live one?

I've got a cluster with 84 Openstack Essex compute nodes, one of which decided to pine for the fjords about 2 hours ago, with 8 running instances on it. The instances are all running off qcow2 disks on an NFS share, so the disk images are still…
cas
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Exhausted all hosts available for retrying build failures for instance

Trying to make a proof of concept cloud by following this guide https://www.rdoproject.org/install/packstack/ I managed to get OpenStack installed and I'm able to access the dashboard. When I go to make an instance, I get an error. Error: Failed to…
sfxworks
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Permission denied error when launching instance ("Could not open backing file")

Working with OpenStack, installed from packages available on Debian testing (buster). When I try to launch an instance, it fails after building with this message in nova-compute.log: Could not open backing file: Could not open…
d3query
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2 answers

Default SSH credentials for CoreOS?

I am trying to play around with CoreOS, and I just went to their ISO download site and downloaded the latest stable ISO. I then created a new VM instance with that ISO, and it looks like the instance is up and running beautifully. I would now like…
smeeb
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Openstack Nova and Ceph Volume Attachment Issue

I am trying out the volume attachment function at Openstack (version:wallaby) to the server as additional device but failed. The volume backend is ceph which all of the osds are up and healthy. ceph-osd/38* active idle 0 …
ony4869
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How to provision baremetal kuberenetes cluster using magnum with only one vlan?

There does not seem to be a guide that follows through on how to deploy a baremetal Kubernetes cluster using magnum. I got to the point of having the baremetal servers turn on and initiate the pxe request, however, the dnsmasq server does not…
John Karasev
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Openstack Error: No valid host was found. There are not enough hosts available

As a purpose of testing, I am trying to spin up instances of large size, I mean of 8 vCPU's and greater than 20 GB memory, with 50 GB storage. Physical host has 48 GB RAM and 16 CPU. But everytime receives the same error Failed to perform requested…
serverstackqns
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OpenStack Hyper-V vSwitch not being selected

I'm updating this, as the original did not get much support. And, I'm not seeing that error anymore since restarting with a fresh install using packstack. To help try to "help you, help me." I am posting all the relevant configs for my install, in…
John C
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Changing boot order while using ipxe with nova

I am using ipxe to boot a VM with openstack Nova. Here is the answer link i have used to setup my boot process Does nova support pxe boot? I am using the answer by larsks to boot the VM using ipxe. It works well but when i try to reboot a VM it…
The_Lost_Avatar
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How to get list of openstack Instances with Project name

My openstack setup is Mitaka version. I want to list all the Instances with Project Name. I tried with below command but it shows Tenant ID but not name. nova list --all-tenants
Gopalakrishnan Subramanian
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Cloud-init not finding metadata server (Openstack)

I am trying to understand why my server is failing to connect to the metadata server (and thus not able to log in with the SSH key). Similar problems online seem to be caused by Security Group problems, that I am confident is not the problem…
Mark Perryman
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OpenStack Juno Live-Migration never completes for instances with high load and size >64GB

I have run into situations where live migrations never seem to complete or error out. Here is how I have been able to reproduce the problem. Here is the instance I am migrating: [root@osc1-mgmt-001 tmp]# nova show…
Red Cricket
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