- openstack-discuss - lists.openstack.org

[neutron] Bug deputy report (last week of 2023)
by Bernard Cafarelli 02 Jan '24

02 Jan '24

Hey neutrinos, and happy new year! Here is the bug reported between 2023-12-25 and 2023-12-31 (as per tradition, it was a quiet week) The firewall group is ACTIVE without associate with a router or any firewall policies - https://bugs.launchpad.net/neutron/+bug/2047325 neutron-fwaas bug, patch proposed: https://review.opendev.org/c/openstack/neutron-fwaas/+/904317 Best wishes -- Bernard Cafarelli

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ceilometer cli client install help
by garcetto 01 Jan '24

01 Jan '24

good afternoon, i have a running kolla-ansible openstack all-in-one cluster, so far so good (zed version based on ubuntu). i have installed ceilometer, and then i am trying to use this command to show metrics, but seems i cannot find the right command option, what am i missing? " (my-virt-env) marcello@mg-ostack-119:~$ openstack metric resource list openstack: 'metric resource list' is not an openstack command. See 'openstack --help'. Did you mean one of these? service create service delete service list service provider create service provider delete service provider list service provider set service provider show service set service show " thank you.

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[kolla] ceilometer and nova compute agent
by garcetto 01 Jan '24

01 Jan '24

good morning, i would like to measure instances metrics but i cannot understand if i need to add this package on nova containers or the apt package is already installed (or do i need to create a custom nova container?) https://docs.openstack.org/ceilometer/latest/install/install-compute-ubuntu… thank you.

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Trove installation filed
by Tamim Wasif 01 Jan '24

01 Jan '24

Hello openstack team I can not install openstack database service Trove. its some times showing this error "No valid host was found" "polling request timed out" "can not create volume for instance ..." what can be the solution? from Tamim Wasif Software Engineer Teton Private limited

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[trove][victoria] can't connect to trove DB from outside - although ssh to the trove instance works
by ddorra＠t-online.de 31 Dec '23

31 Dec '23

Hello, I can't connect to to my trove mysql DB from an instance in a selfservice network. Strange thing is I CAN connect to the trove instance via ssh: ubuntu@dozbox2:~$ telnet 192.168.0.176 22 Trying 192.168.0.176... Connected to 192.168.0.176. Escape character is '^]'. SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.7 But I CANNOT reach the DB port from on the troave instance: ubuntu@box2:~$ telnet 192.168.0.176 3306 Trying 192.168.0.176... telnet: Unable to connect to remote host: No route to host Within the Trove instance I CAN work with the client... root@ms3:/var/log/trove# mysql -h 192.168.0.176 -u dbadmin -p -P 3306 Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 331 The security group for that trove instance allows ssh AND 3306 (see additional infos/rules below). Any help is really appreciated! ------- Additional Infos ------------------ root@voscontrol:~# openstack server show 534fe146-0d51-4848-98ed-95dc9aaf89b1 +-------------------------------------+------------------------------------------------------------------+ | Field | Value | +-------------------------------------+------------------------------------------------------------------+ | OS-DCF:diskConfig | MANUAL | | OS-EXT-AZ:availability_zone | nova | | OS-EXT-SRV-ATTR:host | voscompute2 | | OS-EXT-SRV-ATTR:hypervisor_hostname | voscompute2 | | OS-EXT-SRV-ATTR:instance_name | instance-000000d0 | | OS-EXT-STS:power_state | Running | | OS-EXT-STS:task_state | None | | OS-EXT-STS:vm_state | active | | OS-SRV-USG:launched_at | 2023-12-18T23:05:15.000000 | | OS-SRV-USG:terminated_at | None | | accessIPv4 | | | accessIPv6 | | | addresses | doznet=192.168.0.176; trovemgmt=10.10.10.134 | | config_drive | True | | created | 2023-12-18T23:04:59Z | | flavor | m1.large (72a7e41e-e0e9-48fe-abc2-8c64838e9e4a) | | hostId | 618af9a8f27a256f291621d611d30ae2186de8c2e8fa03e5a5ba2081 | | id | 534fe146-0d51-4848-98ed-95dc9aaf89b1 | | image | trove-guest-ubuntu-bionic (773aeec6-9caa-48a3-a80a-f9bf440b0d9e) | | key_name | trovekey | | name | ms3 | | progress | 0 | | project_id | d2e35c5479c441dc9ba4dba8e9b914bc | | properties | | | security_groups | name='trove_sg-27547af3-9bb0-4df5-b4ff-e85daa72c6ef' | | | name='default' | | status | ACTIVE | | updated | 2023-12-18T23:05:15Z | | user_id | a72e578837da479895fe4207107ca2fa | | volumes_attached | id='bff9037e-2831-473b-b6ae-8027ee4053dc' | +-------------------------------------+------------------------------------------------------------------+ root@voscontrol:~# openstack security group show trove_sg-27547af3-9bb0-4df5-b4ff-e85daa72c6ef +-----------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Field | Value | +-----------------+----------------------------------------------------------------------------------- | created_at | 2023-12-18T23:04:51Z | description | Security group for trove instance 27547af3-9bb0-4df5-b4ff-e85daa72c6ef | id | d73ff24a-5288-486b-b10b-fe9902f80e15 | name | trove_sg-27547af3-9bb0-4df5-b4ff-e85daa72c6ef | project_id | d2e35c5479c441dc9ba4dba8e9b914bc | revision_number | 3 | rules | created_at='2023-12-18T23:04:52Z', direction='ingress', ethertype='IPv4', id='0484ddff-c945-45d0-b271-7d30e7fbf619', port_range_max='3306', port_range_min='3306', protocol='tcp', remote_ip_prefix='0.0.0.0/0', updated_at='2023-12-18T23:04:52Z' | | | created_at='2023-12-18T23:04:51Z', direction='egress', ethertype='IPv6', id='27ed1225-984a-454e-86da-656de3669038', updated_at='2023-12-18T23:04:51Z' | | | created_at='2023-12-18T23:10:33Z', direction='ingress', ethertype='IPv4', id='c2c7c390-8b13-4b00-ab7c-0a8a7687ac08', port_range_max='22', port_range_min='22', protocol='tcp', remote_ip_prefix='0.0.0.0/0', updated_at='2023-12-18T23:10:33Z' | | | created_at='2023-12-18T23:04:51Z', direction='egress', ethertype='IPv4', id='d1fdc662-fc24-46bd-80db-3aca725f96aa', updated_at='2023-12-18T23:04:51Z' | | stateful | True | tags | [] | updated_at | 2023-12-18T23:10:33Z +---------------------------------------------------------------------------------------------+

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[cinder] 2024.1 Caracal Midcycle-1 Summary
by Rajat Dhasmana 27 Dec '23

27 Dec '23

Hello Argonauts, Following is the summary of the 2024.1 Caracal Midcycle-1 held on Date: 6th December, 2023 Time: 1400-1600 UTC https://wiki.openstack.org/wiki/CinderCaracalMidCycleSummary Please go through the discussion points and action items assigned to you and let me know if any modification is required. Thanks Rajat Dhasmana

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Could not find requested endpoint in Service Catalog - nova-compute empty
by vpa.vishnupa＠gmail.com 27 Dec '23

27 Dec '23

Hi all, I am working on a project to setup OpenStack HCI. I am following these documentation https://www.server-world.info/en/note?os=Ubuntu_22.04&p=openstack_yoga&f=15 along with https://docs.openstack.org/install-guide/ .. While configuring nova I am facing with this error "Could not find requested endpoint in Service Catalog." while listing openstack compute service list --service nova-compute. Can somebody help me. Why this error is happening - nova-compute empty. Thank you.

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[Glance] Weekly meeting cancelled - 28th Dec
by Pranali Deore 27 Dec '23

27 Dec '23

Hello, Due to year end holidays, most of the team members are not around this week, so cancelling tomorrow's meeting. Next Glance meeting will be on January 4th !! Thanks, Pranali Deore

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[kolla-ansible][magnum]
by Franck VEDEL 26 Dec '23

26 Dec '23

Hello everyone. Here's a problem I can't solve. In my test cluster (2 nodes, Ubuntu 2022.4, Cinder LVM, kolla-ansible Antelope, 2023.1) everything is fine. In a month, my students will be able to start from scratch and build an Openstack cluster with quite a few features in around twenty hours. The challenge is to guide them in building a cluster, ensuring that they seek to solve problems, without it being too difficult. So you have to guide them, start with virtual machines then move on to real servers. In the end, I wanted to test "magnum" because they know Kubernetes. I edit globals.yml, reconfigure, grab Fedorac-coreos (qcow2 file) and add the image to peek. In Horizon, I create a cluster template. everything is working. Then, with the admin account, I try to create a cluster from the model and there I have the problem Failed to create trustee XXX in domain XXX” Okay, I create the file /etc/kolla/config/magnum.conf with enable_cluster_user_trust = True I reconfigure but it doesn't work. I'm looking for other solutions but I can't find them. Should we give special rights to the admin user (for my example) on the magnum domain? Franck

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openstack user_data inject in Api
by Parsa Aminian 26 Dec '23

26 Dec '23

hello how can I run shell script after vm creation on openstack with api ? I check nova api document and there is no thing about user_data api in nova documents

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[openstack][neutron]Cannot schedule router to specified AZ
by Nguyễn Hữu Khôi 25 Dec '23

25 Dec '23

Hello. I am planning to separate network AZ looks like: 2 network nodes for AZ1 2 network nodes for AZ2 I can select AZ when creating a router from AZ hints but It wont work as I expect. Router should only schedule on my selected AZ. Could you correct me if I am wrong. Thank you. Nguyen Huu Khoi

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[swift][osprofiler][telemetry] What is the current state of tracing for Swift?
by Matheus Victorello 23 Dec '23

23 Dec '23

Hello, There is no OSProfiler for Swift, right? Is someone developing it? Is there anything related to OpenTelemetry in the context of Swift? I need to know the entire path of a request, how much time is spent in each middleware, every call to external APIs made by middlewares, which proxy was used, and which storage nodes were utilized. The best I have so far is to instrument the parts that interest me with Jaeger, simply because we already use it for other services. -- _‘Esta mensagem é direcionada apenas para os endereços constantes no cabeçalho inicial. Se você não está listado nos endereços constantes no cabeçalho, pedimos-lhe que desconsidere completamente o conteúdo dessa mensagem e cuja cópia, encaminhamento e/ou execução das ações citadas estão imediatamente anuladas e proibidas’._ * **‘Apesar do Magazine Luiza tomar todas as precauções razoáveis para assegurar que nenhum vírus esteja presente nesse e-mail, a empresa não poderá aceitar a responsabilidade por quaisquer perdas ou danos causados por esse e-mail ou por seus anexos’.*

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After a power outage - Cinder Scheduler reports Volume Service as down on only 1 node
by Abhijit Anand 23 Dec '23

23 Dec '23

Hi, Problem Statement: - “openstack volume service list” shows “volume service” down on 1 node. - Cinder scheduler logs show this. 2023-12-22 09:00:19.779 7 WARNING cinder.scheduler.host_manager [None req-40e35d10-9441-43c2-9647-6630cba21e1c - - - - - -] volume service is down. (host: compute2@rbd-1) - Why is the host_manager of Cinder-Scheduler showing “compute2” as down? Versions: - Openstack version 2023.1 Installed using kolla-ansible on ubuntu 22.04 - Ceph version 18.2.0 More info: - I’ve got a 3 node openstack deployment with one of them doubling up as both compute as well as controller node. - Backend storage for cinder volumes and backups is a 3 node Ceph cluster deployed using cephadm. - a power outage resulted in all nodes shutting down. - once back up, the “openstack volume service list” command shows that cinder-volume and cinder-backup services are down on “compute2”. Refer “Output #1” below. - I enabled “debug=True” on both the “good” i.e. compute1, as well as “bad” i.e. “compute2” nodes. I dont see any errors or issues in the cinder-volume and cinder-backup logs of either. Refer outputs #2 and #3 below. - I don’t see any errors related to compute2 in ceph or cephadm logs. - No config has been changed. The only “change” was the forced shutdown. - I’ve restarted the docker containers (cinder volume, cinder backup, cinder-scheduler on controller). I’ve even rebooted the controller and the “bad” node. - All containers come back as healthy - Please see output #4, it shows, what appear to be “All Good!” updates from the “bad” node. Then why is the scheduler considering this node as down? Outputs: #1: openstack volume service list abanand@Abhijits-MacBook-Air ~ % openstack volume service list +------------------+------------------+------+---------+-------+----------------------------+ | Binary | Host | Zone | Status | State | Updated At | +------------------+------------------+------+---------+-------+----------------------------+ | cinder-scheduler | controller | nova | enabled | up | 2023-12-22T03:44:22.000000 | | cinder-volume | compute1@rbd-1 | nova | enabled | up | 2023-12-22T03:44:21.000000 | | cinder-volume | compute2@rbd-1 | nova | enabled | down | 2023-12-22T03:42:04.000000 | | cinder-volume | controller@rbd-1 | nova | enabled | up | 2023-12-22T03:44:20.000000 | | cinder-backup | compute2 | nova | enabled | down | 2023-12-22T03:42:02.000000 | | cinder-backup | compute1 | nova | enabled | up | 2023-12-22T03:44:20.000000 | | cinder-backup | controller | nova | enabled | up | 2023-12-22T03:44:19.000000 | +------------------+------------------+------+---------+-------+——————————————+ #2: compute2 - “Bad” node logs after enabling debug=true 2023-12-22 09:25:28.041 23 DEBUG oslo_service.periodic_task [None req-8388d960-ae3a-46d3-838a-24c112929683 - - - - - -] Running periodic task VolumeManager.publish_service_capabilities run_periodic_tasks /var/lib/kolla/venv/lib/python3.10/site-packages/oslo_service/periodic_task.py:210 2023-12-22 09:25:28.043 23 DEBUG cinder.volume.drivers.rbd [None req-8388d960-ae3a-46d3-838a-24c112929683 - - - - - -] connecting to cinder@ceph (conf=/etc/ceph/ceph.conf, timeout=15). _do_conn /var/lib/kolla/venv/lib/python3.10/site-packages/cinder/volume/drivers/rbd.py:597 2023-12-22 09:25:28.074 23 DEBUG cinder.volume.drivers.rbd [None req-8388d960-ae3a-46d3-838a-24c112929683 - - - - - -] connecting to cinder@ceph (conf=/etc/ceph/ceph.conf, timeout=15). _do_conn /var/lib/kolla/venv/lib/python3.10/site-packages/cinder/volume/drivers/rbd.py:597 2023-12-22 09:25:28.103 23 DEBUG cinder.manager [None req-8388d960-ae3a-46d3-838a-24c112929683 - - - - - -] Notifying Schedulers of capabilities ... _publish_service_capabilities /var/lib/kolla/venv/lib/python3.10/site-packages/cinder/manager.py:202 #3: compute1 - “Good” node logs after enabling debug=true 2023-12-22 09:25:28.041 23 DEBUG oslo_service.periodic_task [None req-8388d960-ae3a-46d3-838a-24c112929683 - - - - - -] Running periodic task VolumeManager.publish_service_capabilities run_periodic_tasks /var/lib/kolla/venv/lib/python3.10/site-packages/oslo_service/periodic_task.py:210 2023-12-22 09:25:28.043 23 DEBUG cinder.volume.drivers.rbd [None req-8388d960-ae3a-46d3-838a-24c112929683 - - - - - -] connecting to cinder@ceph (conf=/etc/ceph/ceph.conf, timeout=15). _do_conn /var/lib/kolla/venv/lib/python3.10/site-packages/cinder/volume/drivers/rbd.py:597 2023-12-22 09:25:28.074 23 DEBUG cinder.volume.drivers.rbd [None req-8388d960-ae3a-46d3-838a-24c112929683 - - - - - -] connecting to cinder@ceph (conf=/etc/ceph/ceph.conf, timeout=15). _do_conn /var/lib/kolla/venv/lib/python3.10/site-packages/cinder/volume/drivers/rbd.py:597 2023-12-22 09:25:28.103 23 DEBUG cinder.manager [None req-8388d960-ae3a-46d3-838a-24c112929683 - - - - - -] Notifying Schedulers of capabilities ... _publish_service_capabilities /var/lib/kolla/venv/lib/python3.10/site-packages/cinder/manager.py:202 #4: Output from Cinder Scheduler logs 2023-12-22 09:35:18.861 7 DEBUG cinder.scheduler.host_manager [None req-09c91b17-3861-4c95-b85e-e4d39c17923c - - - - - -] Received backup service update from compute2: {'backend_state': True, 'driver_name': 'cinder.backup.drivers.ceph.CephBackupDriver', 'availability_zone': 'nova'} update_service_capabilities /var/lib/kolla/venv/lib/python3.10/site-packages/cinder/scheduler/host_manager.py:597 2023-12-22 09:35:29.659 7 DEBUG cinder.scheduler.host_manager [None req-ba4bd917-52a8-4b02-92a3-5f989c5d70ae - - - - - -] Received volume service update from compute2@rbd-1: {'vendor_name': 'Open Source', 'driver_version': '1.3.0', 'storage_protocol': 'ceph', 'total_capacity_gb': 14649.52, 'free_capacity_gb': 14216.63, 'reserved_percentage': 0, 'multiattach': True, 'thin_provisioning_support': True, 'max_over_subscription_ratio': '20.0', 'location_info': 'ceph:/etc/ceph/ceph.conf:d524a89e-60eb-11ee-a0c3-7db08f4d9091:cinder:volumes', 'backend_state': 'up', 'qos_support': True, 'volume_backend_name': 'rbd-1', 'replication_enabled': False, 'allocated_capacity_gb': 1031, 'filter_function': None, 'goodness_function': None} update_service_capabilities /var/lib/kolla/venv/lib/python3.10/site-packages/cinder/scheduler/host_manager.py:628

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[all] Posting results from generative "AI" (LLM) queries
by Jeremy Stanley 23 Dec '23

23 Dec '23

I'm refraining from calling out any particular participant on this (for now), but we've gotten a lot of recent and very enthusiastic answers to people's questions which look very much like the results of blindly pasting them into an LLM (e.g. ChatGPT) and then passing the response off as the sender's own experience. This quickly falls apart when there are multiple open source projects with the same name and the LLM gives a response about the "wrong" project with that name, revealing that the person posting it really doesn't even know the difference between them. Users post their questions to this list because they've exhausted other avenues and are hoping to hear responses derived from (human) subscribers' own personal/professional experiences. If you've legitimately run the software and actually know what the question means, then please do answer. But if users wanted to see the results of pasting their question into ChatGPT then they'd just do that (and likely already have). I don't want to institute "AI" oriented policies for this list like other forums have been forced to in recent months, so please (everyone!) just make it clear when the information you're posting is the result of consulting another source, and state what source it came from. Thanks! -- Jeremy Stanley

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Re: [swift][osprofiler][telemetry] What is the current state of tracing for Swift?
by Matheus Victorello 23 Dec '23

23 Dec '23

While reading your response, I realized that my question was a bit unclear. I was referring to OpenStack Object Storage 'Swift', which is why I asked about OSProfiler. I mention this because it got confusing since I mentioned OpenTelemetry. I came across the association between OpenTelemetry and the Swift programming language while researching and ended up including that in my question. Just to clarify, I want to do tracing of OpenStack Swift. Sorry for the confusion. -- _‘Esta mensagem é direcionada apenas para os endereços constantes no cabeçalho inicial. Se você não está listado nos endereços constantes no cabeçalho, pedimos-lhe que desconsidere completamente o conteúdo dessa mensagem e cuja cópia, encaminhamento e/ou execução das ações citadas estão imediatamente anuladas e proibidas’._ * **‘Apesar do Magazine Luiza tomar todas as precauções razoáveis para assegurar que nenhum vírus esteja presente nesse e-mail, a empresa não poderá aceitar a responsabilidade por quaisquer perdas ou danos causados por esse e-mail ou por seus anexos’.*

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[openstack][kolla-ansible] kolla-ansible stucked when reconfigure
by Nguyễn Hữu Khôi 22 Dec '23

22 Dec '23

Hello guys. I am operating an openstack cluster with kolla but sometimes I cannot reconfigure. It stucked at some hosts(gather fact) and I need to restart docker service on the stucked host to continue. I tried to google but I cannot find the root cause. Would you share some experiences on it because my solution causes instances on host to timeout some seconds. Thank you. Nguyen Huu Khoi

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Devstack, Cinder, Nova versus memcached
by Pete Zaitcev 21 Dec '23

21 Dec '23

Hello: We all know how Cinder and Nova use memcached to save Keystone tokens (technically, authtoken middleware does it for them). That is expected. However, devstack leaves a config for Cinder that looks like this: [nova] region_name = RegionOne memcached_servers = localhost:11211 Does anyone remember how that is used? I looked at Cinder and python-novaclient, and neither use memcached for anything there. Thanks in advance, -- Pete

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[neutron] Next week CI meeting is cancelled
by Yatin Karel 21 Dec '23

21 Dec '23

Hello Neutron Team !! With the holiday season, next week's CI meeting is cancelled. Wish you happy holidays. Next CI meeting will be now on 02nd January, 2024. -- Thanks and Regards Yatin Karel

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[kolla-ansible][zun] Intention to drop support for Zun for the 2023.1 and path forward
by Jan Gutter 21 Dec '23

21 Dec '23

Hi folks, In yesterday's Kolla IRC meeting we discussed the path forward for Zun [1] and came to the conclusion that it might be better for all involved to drop support for Zun for the 2023.1 release until it can be updated to support the necessary dependencies. More specific details at the end of the message. With this in mind, the plan is to start this process in a week from now, unless a better solution is presented. There is still some time for discussion, please don't hesitate! There are two paths forward after this: If Zun can be updated to support the dependencies during the maintenance timeframe of 2023.1, then support would be restored. If no support is available at the time Caracal releases, however, it will be considered for removal in kolla and kolla-ansible. What this means: Kolla-ansible operators currently running Zun should hold off migration to 2023.1. Any development help would of course be appreciated. Please coordinate with the Zun project to help with development. Details on the dependency problems: * Currently, Zun has an external dependency on Docker 20.x, and uses a feature that has been removed in later versions of Docker. * This Docker feature also relies on an older version of etcd (3.3) * The mitigation [2] is to pin to the old versions of Docker and etcd, but this is not possible with Debian Bookworm hosts. Why this is a problem in Kolla-ansible (and Kolla): * This can't easily be solved by vendoring in an older version of etcd: the migration path it introduces to operators would incur a significant amount of risk. * Host level involvement is also particularly painful, the host version of Docker needs to connect to the etcd service running in the containers. * Even though the containers can be kept buildable and the configuration and inventory settings could be maintained, a working setup is not testable in CI. Thanks very much for everyone's patience, contributions and time! [1]: https://meetings.opendev.org/meetings/kolla/2023/kolla.2023-09-13-13.00.log… [2]: https://bugs.launchpad.net/zun/+bug/2007142

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[neutron] Neutron drivers meeting cancelled
by Rodolfo Alonso Hernandez 21 Dec '23

21 Dec '23

Hello Neutrinos: Due to the lack of agenda [1], tomorrow's meeting is cancelled. Have a nice weekend and happy holidays. [1]https://wiki.openstack.org/wiki/Meetings/NeutronDrivers

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[nova] Next two weekly meetings CANCELLED
by Sylvain Bauza 21 Dec '23

21 Dec '23

That's it. See you back on Jan 9th :)

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[Glance] Cancelling Today's Weekly Meeting
by Pranali Deore 21 Dec '23

21 Dec '23

Hello, Since most of the team members are not around and there is nothing much on agenda too, cancelling today's (21st Dec) weekly meeting. Thanks & Regards, Pranali Deore

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Reg Openstack deployment
by Rohit Sansiya 21 Dec '23

21 Dec '23

Dear Sir, please help me ! I have a single compute node and i have to configure nova and neutron on that single compute node only. how to do this kindly help me sir. Thanks Your message is ready to be sent with the following file or link attachments: Rohit Sansiya https://sites.google.com/view/rpgcloud/research-india Note: To protect against computer viruses, e-mail programs may prevent sending or receiving certain types of file attachments. Check your e-mail security settings to determine how attachments are handled.

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[i18n][infra] Future of translate.openstack.org
by Tony Breeds 21 Dec '23

21 Dec '23

Hello all, The infra team is in the process of replacing older bionic servers with jammy based ones. We're nearing the end of that process and one of the remaining servers is translate.openstack.org. This server is primarily running zanata, which if I understand correctly, is no longer in use by the i18n team. I understand that there is a new platform that requies some tooling, if a dedicated server is needed for that we can spin up a newer jammy based server. So can we just retire this translate.openstack.org? Yours Tony.

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[all][tc][ptls] Eventlet: Python 3.12, and other concerning discoveries
by Jay Faulkner 21 Dec '23

21 Dec '23

Hi all, For those who aren't aware, eventlet (https://github.com/eventlet/eventlet) is a library that almost every OpenStack project depends on and uses heavily. It's the primary method in most OpenStack project for achieving any form of parallelism via greenthreading. A couple of weeks ago it was brought to my attention, in the #openstack-tc IRC channel, that the eventlet library was broken on python 3.12 due to changes to the SSL stdlib in python 3.12. I enlisted a G-Research Open Source Software (GR-OSS) developer from outside the OpenStack community, Itamar, to help dig into what would be required to get python 3.12 support for eventlet, and asked him to do an overall health check on the project. The results were extremely concerning, and are why I'm emailing the list today. First of all, the original concern -- python 3.12 support -- is being worked on right now; there is a PR up to migrate the SSL module here https://github.com/eventlet/eventlet/pull/817 and a PR up here: https://github.com/eventlet/eventlet/pull/820 to begin migrating from nose3, a deprecated testing framework used by eventlet which does not support python 3.12. It's worth noting that in the past (2020) https://github.com/eventlet/eventlet/issues/638 there was resistance to removing nose for testing due to at-the-time-desired python2.7 support. Even if they are able to be merged, these PRs only scratch the surface of the total effort needed to get eventlet working on python 3.12. Furthermore, activity on the eventlet project is extremely slim right now. There have been no commits to the primary branch in nearly eight months and it's been a single maintainer project for an extremely long time. There are also indications there may be external factors impacting the maintainers' availability. This lack of redundancy on a core library that we have no clear migration path off of is concerning as well. As a large community that uses eventlet; I hope we can improve it. Now we get to the cherry on top -- code quality and existing bugs. When Itamar began evaluating the overall state of the project, he found that approximately 80% of the unit tests were passing. Some of the failing unit tests were valid failures. In fact, one of the failure cases -- around locks not being properly greened on upgrade -- explains an Ironic database migrations unit test failure which we spent several weeks off-and-on debugging last cycle. Along these lines; although eventlet has CI configured; those tests have never passed: https://github.com/eventlet/eventlet/actions/workflows/test.yaml?query=is%3… . I don't have a specific proposal for a solution. I do know that right now, OpenStack services are built "all-in" on eventlet, with no obvious or easy migration path off. At least in the short term, keeping eventlet running well is critical to keeping OpenStack running well. I'm sending this email to raise an alarm about this situation, and to hope that community members can work together to solve the problem. Thanks for reading and your help, Jay Faulkner OpenStack TC Chair

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