Questions tagged [openstack-nova]
Openstack's Compute is a component that can be used to host and manage systems
107
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Error Detatching Cinder Volumes in Openstack
When I try and detach cinder volumes in openstack they do not detach properly. They just get stuck in detaching.
The same thing happens if I delete an instance. The instance deletes fine but the ...
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21
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Getting " no such table: cell_mappings" error while installing nova
I was following the product documentation "https://docs.openstack.org/nova/2023.1/install/verify.html" after the nova installation is complete on my controller and compute node Iam seeing ...
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27
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Non Admin openstack user is unable to create compute instances on Horizon Dashboard
Problem Statement:
Non Admin user is unable to create instances using Openstack Horizon Dashboard.
Errors:
Errors seen in sequence on the top right of the page are:
Error: Forbidden. Insufficient ...
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12
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Unable to Attach Volume from Synology Flashstation Backend
The ability to attach Synology volumes has for some reason stopped working. This was working, but after the latest zed update from Ubuntu appears to have stopped working.
Running Openstack Zed on ...
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73
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Openstack - Failed to Create Instance using Availability Zone parameter
Summary
I have fairly small Openstack Cluster with 2 AZ : AZ-GOLD-6248R have 3 compute node and AZ-E5-2630 have 1 compute node (both AZ had different specs)
I can create instance to AZ-E5-2630 using ...
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39
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CRITICAL neutron [-] Unhandled error: neutron.privileged.agent.linux.ip_lib.InterfaceOperationNotSupported Openstack
As per OpenStack nice documentation, I configure the neutron minimal setup with the "self-service network" option. when all configurations done i see the verify command "openstack ...
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1
answer
144
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How to view the used space of a volume in OpenStack
In OpenStack, is there a way to view the used space of a volume? In another words, what is the equivalent of the virt-df <domain> --human command in OpenStack api?
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72
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Nova setup error (MissingAuthPlugin)
so when i was following Openstack Yoga installation i got error adding nova-conductor and nova-scheduler.enter image description here when i read conductor's log, it said
CRITICAL nova [-] Unhandled ...
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51
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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 ...
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643
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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 ...
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CantStartEngineError: No sql_connection parameter is established
I have been trying to install openstack on centos7 but while building it gives error as "CantStartEngineError: No sql_connection parameter is established". The command I am using to build is ...
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1
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81
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Openstack nova cold migration failing on rocky 9 due to sftp subsystem error
I have deployed a multinode deployment of OpenStack using kolla ansible (deployed following the openstack deployment guide) on 2 rocky linux 9.1 machines. When attempting to migrate one instance ...
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1
answer
21
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Different between of the role of Nova-Conductor and Nova-Compute
Assert: I don't understand about OPS/Redhat explaination. Because all of information said nova-conductor will help database-accessing for nova-compute, every chart/image showed, too.
From OPS ...
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248
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openstack compute node not registering
I am trying to manually install Openstack Yoga in virtual environment (Rocky Linux 9). I am struggling to bring my compute node in the * Openstack hypervisor list*. Following this guide to install ...
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216
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openstack oslo messaging exception in nova-conductor
I have set up opensatck yoga in ubuntu 22.04. I have gone through each verify step after install which all worked fine. I have 1x controller and 1x compute. In my controller i keep noticing this ...
- 349
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109
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openstack selfservice network error Invalid input for operation: Segmentation ID should be lower or equal to 4095
I am running ubuntu 22.04 lts with openstack yoga. when i run the following command openstack network create selfservice --debug i get error
POST call to network for http://controller1:9696/v2.0/...
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213
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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/...
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342
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openstack magnum error when create cluster
I create Cluster via this Cluster template
openstack coe cluster template create \
--coe "Kubernetes" \
--image "fedora-coreos" \
--flavor "g1.medium" \
--master-...
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1
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398
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OpenStack Queens: Horizon Fails after rebooting the controller node
The controller node was rebooted and some VMs were running. After that, when logging to Horizon, I keep receiving the following error: Error: Unable to retrieve instances. And I can no longer see the ...
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79
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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 ...
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235
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Openstack instance is unreachable
I am facing the following issue with my new Openstack installation.
The installation is a little bit weird and to elaborate more, I have a controller and a compute node running as VMs in XenServer.
...
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570
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How to debug timeout error during instance creation?
I've created a small OpenStack cloud consisting of 3 nodes that all contain the same services, using kolla ansible. I can start instances using the Cirros toy image no problem, and also an offical ...
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147
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resizing windows instance in openstack - disk wont resize
Openstack resize flavor in windows image show no error. CPU and Memory will increase but the disk won't.
no error log. in the instance description it shows the new flavor but the disk won't resize.
I ...
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73
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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 ...
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209
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Openstack nova terminating guest vms with oom_kill
I am running an openstack Victoria with Kolla ansible deployment , all components are containerised .
The compute node is (oom_kill) killing guest when the memory is max out , is there a way to avoid ...
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2
answers
299
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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)
...
- 143
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2
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457
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kolla ansible deployment stuck at Nova API bootstrap container
I am deploying openstack (for kypo cyber range) using kolla-ansible. I have followed all the steps on official guide. However I am stuck on Nova API bootstrap container for almost half a day. I have ...
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342
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Incorrect ressource allocation on OpenStack
In our cluster, we have 4 computes running and we have an issue with the number 4.
We can't create VMs on it, we can't migrate VMs to or from that node. VMs are still perfectly working though. After a ...
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136
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Openstack ( using libvirt image type as LVM )- Very low IOPS
As part of the base line testing, able to see qcow is providing much higher iops compare to the LVM.
Ideally it should be the reverse ( as per my knowledge gathering ) Kindly please advise me on how ...
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374
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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-...
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513
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Is there a way to access my OpenStack instance without floating IP?
It seems theoretically possible for me to ssh to my instance in OpenStack through credentials and instance id/network IP(Not floating IP) etc.
Is it possible, am I missing something? Is it simply a ...
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1
answer
228
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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 ...
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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 ...
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1
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142
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Can openstack compute be deployed as nested kvm VM for testing purpose?
Just for testing and learning purpose, can openstack compute nodes be deployed as VM with nested-kvm?
I tried to do so with Train version of openstack, but I got this errors :
2021-08-17 14:48:51.039 ...
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67
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How do I add floating IPs to my ansible Openstack deployment?
So, I successfully deployed openstack with two interfaces. One having an external IP (Which I use to connect to my openstack deployment) and another dummy interface with only an internal network IP (...
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336
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How do you log in to an OpenStack VM during rescue operation?
I have a CentOS 8 VM with a corrupt filesystem and I want to recover data by rescuing it. I ran openstack server rescue --password somestring myserver. However, when I tried to log in to the VM by ...
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1
answer
420
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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 ...
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1
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738
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Rebuild of volume-backed server
I create a volume then I use it to create server. I would like to rebuild this server such that its image is changed. When I call nova rebuild api with a new image, it is said:
Image c1d9.... is ...
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170
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(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 ...
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332
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OpenStack Slowness on Centos Stream
I just deployed a new cluster of Openstack Victoria using PackStack on Centos Stream, same hardware but for some reason this new cluster runs terribly slow, from the dashboard to the actual instances (...
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85
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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?
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Openstack- unable to login from snapshot instance
I took a snapshot from one instance in an openstack and put the snapshot as image in another openstack deployment, then tried to run it on a flavor that has greater hardware than required. Everything ...
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354
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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 ...
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67
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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-...
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748
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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, ...
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127
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OpenStack-Ansible: Troubleshooting instance not seeing attached volume
I've been working with OpenStack-Ansible 22.0.1 and have successfully brought up a controller node and a compute node with LVM storage that, on the surface, functions. I can now create an instance and ...
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71
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Resize server succeed but not applied
I would like to resize the server via this api. It returns 202 but the flavor is not applied. Its status is not changed to VERIFY_RESIZE.
The status is Active. I also tried it with SHUTOFF status. The ...
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666
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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?
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355
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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?
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840
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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
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