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Questions tagged [openstack-nova]

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

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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 ...
gekaklam's user avatar
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4 votes
3 answers
17k views

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's user avatar
4 votes
4 answers
6k views

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 ...
cas's user avatar
  • 6,793
4 votes
1 answer
367 views

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 ...
Michal's user avatar
  • 91
4 votes
2 answers
960 views

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 ...
El Peso Muerto's user avatar
3 votes
2 answers
6k views

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 ...
smeeb's user avatar
  • 211
3 votes
2 answers
5k views

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 ...
d3query's user avatar
  • 61
3 votes
0 answers
784 views

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-...
ony4869's user avatar
  • 33
3 votes
0 answers
1k views

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 ...
serverstackqns's user avatar
3 votes
0 answers
7k views

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 ...
sfxworks's user avatar
  • 157
2 votes
1 answer
1k views

What is the best way to repair a situation where the nova database contains an attachment, but cinder doesn't?

In our OpenStack cloud there are a server with server_id and a volume with <volume_id>. We are in a situation where there is a volume that appears to be attached from the perspective of Nova, ...
BakaKuna's user avatar
  • 146
2 votes
1 answer
977 views

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 ...
Red Cricket's user avatar
2 votes
3 answers
16k views

Error on nova-compute strart - libvirt: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory

Any attempt to start nova compute services fails with the error HypervisorUnavailable: Connection to the hypervisor is broken on host: The trace log is the following (taken from /var/log/nova/nova-...
Athafoud's user avatar
  • 149
2 votes
0 answers
557 views

How to provision a baremetal kubernetes cluster using a 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 ...
John Karasev's user avatar
2 votes
0 answers
2k views

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 ...
John C's user avatar
  • 99
2 votes
0 answers
493 views

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....
The_Lost_Avatar's user avatar
2 votes
2 answers
14k views

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 ...
Mark Perryman's user avatar
2 votes
1 answer
5k views

Cloud-init unable to retrieve metadata

I set up OpenStack with Puppet, and it's working great for the most part, but I've come across a rather pernicious issue: my Ubuntu guests (and likely others) are unable to retrieve metadata during ...
ironhardchaw's user avatar
1 vote
1 answer
584 views

Openstack only building one VM per machine in cluster, then runs out of resources

I am building an openstack cluster and am having some issues with what I think may be a quota problem. I can successfully build vms on every host, but only one vm per host. I deployed the system using ...
Jeff_M's user avatar
  • 13
1 vote
1 answer
1k views

Openstack change IP address of compute node, controller will not change

Ran into some trouble... when installing more compute nodes, I acidentially left the local_ip located in /etc/neutron/plugins/ml2/linuxbridge_agent.ini the same for the additional compute nodes. Now a ...
number9's user avatar
  • 263
1 vote
1 answer
145 views

Can I use OpenStack Rocky with a neoverse-n1?

Situation: For now, I'm stuck on OpenStack Rocky on Ubuntu 18.04.6 and I have some beefy Neoverse-n1 hardware (aarch64, 64-core, 1TB memory) to integrate. Can I accomplish this with on my current OS ...
jimbob's user avatar
  • 26
1 vote
1 answer
368 views

How to use hosts with no storage disks and virtual machine instances with no local drive in Openstack

In Openstack, is it possible to create compute nodes with no hard drives and use PXE in order to boot the host's system and therefore launch instances with no local drive which is needed to boot the ...
Rafik's user avatar
  • 35
1 vote
1 answer
1k views

Openstack: How to make a VM to autostart

I have deployed Openstack queens for testing purposes. nova --version 14.2.0 I noticed that when I reboot a compute host, all VMs running on it turn into SHUTOFF state. I tried to change this ...
Anton M.'s user avatar
  • 111
1 vote
1 answer
113 views

Does Open-stack supports heterogeneous servers as infrastructure

My company uses Apache cloud stack, but we are planing on upgrading our on premise cluster, and change our IAAS from Cloud-Stack to Open-stack my question is, can we use different servers generations, ...
Saleh Alshaikh-navigator's user avatar
1 vote
1 answer
4k views

openstack: can't launch instance, multiple errors

I'm working with Openstack Mitaka, at the point to try launch an instance. When creating the instance it hangs in ERROR-state , just after built. I collected the errors from the logs, but so far I ...
oblak's user avatar
  • 11
1 vote
2 answers
294 views

Alternative ways to detect hung OpenStack/Linux services?

I have noticed on some of my linux servers that a linux service will be hung. The only way I know that it is hung is operations that rely on the service fails and when I restart the service it fails ...
huan0602's user avatar
1 vote
1 answer
148 views

Questions on Openstack networking (Neutron) configuration

newbie here who's trying to understand Openstack networking topic. My setup: I have 3 physical machines with Openstack installed and running: - controller (with Keystone, Glance, Placement, Neutron, ...
Pybubb's user avatar
  • 13
1 vote
1 answer
3k views

Nova Compute State "down"

I am doing a live migration test in an OpenStack cluster. (Mitaka). I have 3 VMs deployed on 2 compute hosts. The nova-compute state is UP when I start the cluster. But after sometime the although the ...
Anvay's user avatar
  • 13
1 vote
0 answers
176 views

Start instances from specific subnet

we have a network with two subnets (subnet1, subnet2). However when instances are launched they receive IP only one from subnet1 (probably until it has no more IPs to offer) Do you know the rule on ...
donkihott's user avatar
1 vote
0 answers
94 views

openstack nova have a long startup after the fast created volume

i have reinstalled OpenStack with the newest version (Yoga) and all base modules. The system is running fine but the time between the creation of the volume and the startup ist very long with ~10 ...
emil0815's user avatar
1 vote
1 answer
3k views

MySQL ERROR 1045 Access denied for 'nova'@'controller'

Description I installed Openstack Wallaby using OpenStack Installation Guide, all command and configuration is on my Github. This LAB is running on VirtualBox and I have another LAB with the same ...
Hojat Gazestani's user avatar
1 vote
0 answers
210 views

(Solved) How to setup aodh and heat to auto scale in openstack victoria based on cpu usage?

As the metric cpu_util is now deprecated, how can someone use heat to auto scale up and down using cpu usage of the instance? Any insight is appreciated. Edited: We used to have transformers that did ...
swogat pradhan's user avatar
1 vote
0 answers
564 views

Cannot create an instance due to failed binding

I'm deploying openstack on 3 nodes (controller, compute and block storage). Each of my nodes have 2 attachements eno1 on the management network and eno2 on a provider network (192.168.3.0/24). I'm ...
Mdstn's user avatar
  • 11
1 vote
0 answers
234 views

item not found in create server console

I would like to create server console. It has the below error. {"itemNotFound":{"code":404,"message":"The resource could not be found."} I send request to :...
Bani's user avatar
  • 19
1 vote
1 answer
633 views

LUKS encryption for mounted disk - how to decrypt cinder volume

I have a question about the possible decryption of LUKS volume. I'm testing currently barbican+cinder, but I'm just wondering if there is a way, to somehow decrypt my LUKS volume with payload ...
Jan Wasilewski's user avatar
1 vote
0 answers
88 views

New compute node with openstack base bundle

In my scenario which is deployed with maas and juju, I have a network 10.10.10.0/24 which is used to deploy openstack base churm bundle. Also the maas and juju are within this network/subnet. Recently ...
AliReza NaSRi's user avatar
1 vote
0 answers
521 views

AttributeError: module 'openstack.proxy' has no attribute 'Proxy'

I'm runing an Ussuri install on openSUSE 15.2. According the official install guide, the Keystone, Glance, and Placemente has run withou any bigger issues. But, when i try run any command with nova-...
Angelo Sossela's user avatar
1 vote
0 answers
1k views

nova conductor and scheduler not starting

Another question which I think is related to my previous question: When I do: nova service-list nova-conductor and scheduler seems to be enabled, but status is down. How can I start these services.?...
serverstackqns's user avatar
1 vote
0 answers
99 views

Bootstraping Openstack instances using sql injection?

I have been tasked with migrating multiple VMware virtual machines to Openstack without rebooting them. We currently use the VMwareVCDriver to allow Openstack to manage the virtual machines. The ...
J. Mitchell's user avatar
1 vote
0 answers
45 views

Visibility of VM in DevStack

I just configured my DevStack environment on a VM with IP 192.168.249.1. I would like that instance to generate VMs that are reachable within my private company network. Thus, I configured DevStack to ...
Eleanore's user avatar
  • 111
1 vote
0 answers
586 views

Doubts about OpenStack nova and swap files

I have some doubts about the qcow2 swap files created by nova when launching instances. I've launched two instances with respectively 1G and 8G of swap memory. So, I verified that four disks where ...
Rarylson Freitas's user avatar
1 vote
0 answers
159 views

Is it possible to manage group of vms in openstack as a single instance?

I am reviewing openstack technology as a possible solution for creating sandboxes. What I am going to do is to create instances that contains several vms connected within virtual network. There will ...
Eduard's user avatar
  • 111
1 vote
1 answer
3k views

How to source admin credentials to gain access to admin-only CLI commands in Openstack's Nova?

According to this documentation the admin credentials need to be sourced as follows: [vagrant@localhost ~]$ source admin-openrc.sh -bash: admin-openrc.sh: No such file or directory The suspicion is ...
030's user avatar
  • 6,015
0 votes
2 answers
487 views

How to have node affinity in openstack?

For Example, I have 3 Compute servers and I want to have 1 Specific Instance on each of them and I want to have Node Affinity on them. instance_1 --> compute_node_1 (Always on this node) ...
Milad Jahandideh's user avatar
0 votes
1 answer
660 views

openstack using name instead of id

Can I use name instead of id for openstack api such as show instance? When I send server name in the url, I got 404. Is there any way to get the id of the instance by means of its name?
Bani's user avatar
  • 19
0 votes
2 answers
660 views

OpenStack Juno: Is it possible to keep instance on same compute host after resizing?

I have OpenStack Juno setup with 1 controller and 3 compute nodes. I have enabled password less authentication between compute nodes for re-sizing to work. Instance re-sizing is working fine up till ...
Yugendra's user avatar
  • 151
0 votes
1 answer
788 views

nova-compute for compute node in openstack not working No DB access allowed in nova-compute

I have followed this guide https://docs.openstack.org/neutron/yoga/install/compute-install-ubuntu.html the configuration i have is $ sudo egrep -v '^#|^$' /etc/nova/nova.conf [DEFAULT] log_dir = /var/...
shorif2000's user avatar
0 votes
1 answer
106 views

difference between creating server via nova and heat [closed]

What are the pros and cons of creating server via nova and heat stack? When should we use nova and when we should use heat?
Bani's user avatar
  • 19
0 votes
1 answer
76 views

containerized Openstack services

I have a difficulties in the following question: "Does it make sense to containerized/dockerize the openstack controlling services like Neurtron/Cinder/Glance/Keystone server services (neutron-...
user393397's user avatar
0 votes
1 answer
2k views

Update instance and flavor

How can I update flavor and image of an instance? It is not possible with this api. As another question, how can I update ram, disk and vcpu of the flavor?
Bani's user avatar
  • 19