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2018-12-06 18:35:08 -0500 received badge  Famous Question (source)
2018-09-30 11:18:58 -0500 commented answer Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

I have commented reserved_host_memory_mb in /etc/nova/nova.conf on the compute node as per @https://docs.openstack.org/nova/queens/install/controller-install-rdo.html and I have plenty of resources (24vCPU's, 48 GB RAM on compute) available, it's new queens multi-node installation.

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2018-09-29 20:00:41 -0500 commented answer Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

if it's possible please can we have team-viewer or skype quick session ? if you are okay let me know your id @ nagarjunav2111@gmail.com Thanks

2018-09-29 19:46:24 -0500 commented answer Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

image status after spinning vm is error, i don't see any warnings/error in controller nova logs.

2018-09-29 18:15:02 -0500 commented answer Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

Now i verified 10.10.10.33:5672 is reachable

2018-09-29 07:09:06 -0500 commented answer Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

10.10.10.33 is the management IP of controller

2018-09-29 02:33:23 -0500 commented answer Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

AMQP server on 10.10.10.33:5672 is unreachable: [Errno 104] Connection reset by peer. Trying again in 1 seconds. Client port: None: error: [Errno 104] Connection reset by peer 2018-09-28 13:15:24.535 27656 ERROR oslo.messaging._drivers.impl_rabbit [req-6d14c513-8282-403d-8213-053de0160457 0fff88e50c

2018-09-29 02:28:27 -0500 commented answer Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

2018-09-29 03:28:05.909 3175 INFO nova.api.openstack.placement.requestlog [req-41dc396b-fb30-4e9c-b0ab-cd1a70a04add 4a9972bea3574c9fb587fb82aacbfe12 3533faee87f947cb8c4f783b074edfbf - default default] 10.10.10.35 "GET /resource_providers/5c8387ae-0486-40b8-b153-6d1b86d37f84/allocations" status: 200

2018-09-29 02:27:28 -0500 commented answer Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

2018-09-29 03:25:31.407 1437 INFO nova.scheduler.host_manager [req-a711a594-06c8-4278-8ff0-6db39f0edf4a - - - - -] Successfully synced instances from host 'compute02'.

2018-09-29 02:25:11 -0500 commented answer Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

When i try to launch centos VM, same error. Error: Failed to perform requested operation on instance "centos", the instance has an error status: Please try again later [Error: No valid host was found. ].enter code here

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2018-09-28 11:10:50 -0500 commented answer Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

Hi Bernd, thanks for the response. I used new ubuntu working vm in another platform, as soon as i launch VM status changed to Error. No valid host. i have added /nova-conductor.log above where i see error

please check and guide me . Thanks

2018-09-28 01:02:19 -0500 commented answer Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

controller dnsmasq-dhcp[18855]: DHCPDISCOVER(ns-a19b6380-00) ec:f4:bb:c7:e5:8c no address available

I don't have any info about this MAC address in the log .. ec:f4:bb:c7:e5:8c  . It keeps cmg again and again. ANY IDEA
2018-09-28 00:57:05 -0500 answered a question Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

All the service are up and running, i have launched cirros image as well. it's working. But when i launched centos image it got stuck forever. Please someone help. It's high priority issue for me. Thanks in advance.

2018-09-28 00:49:39 -0500 asked a question Queens OpenStack: Unable to Launch Instance Virtual Machine DHCP issue

As soon as i spin the VM: tailf /var/log/nova/nova-conductor.log 2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager [req-b13dc3f6-1ab4-4457-b74d-eba9c12cab4b 7924d05db1ed482fad40df128df9665e 38165053d9234765b1e27ce253de2a8d - default default] Failed to schedule instances: NoValidHost_Remote: No valid host was found. Traceback (most recent call last):

  File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 226, in inner
    return func(*args, **kwargs)

  File "/usr/lib/python2.7/site-packages/nova/scheduler/manager.py", line 139, in select_destinations
    raise exception.NoValidHost(reason="")

NoValidHost: No valid host was found.
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager Traceback (most recent call last):
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 1116, in schedule_and_build_instances
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager     instance_uuids, return_alternates=True)
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 716, in _schedule_instances
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager     return_alternates=return_alternates)
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/utils.py", line 726, in wrapped
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager     return func(*args, **kwargs)
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/client/__init__.py", line 53, in select_destinations
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager     instance_uuids, return_objects, return_alternates)
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/client/__init__.py", line 37, in __run_method
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager     return getattr(self.instance, __name)(*args, **kwargs)
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/client/query.py", line 42, in select_destinations
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager     instance_uuids, return_objects, return_alternates)
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/rpcapi.py", line 158, in select_destinations
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/client.py", line 174, in call
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager     retry=self.retry)
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/oslo_messaging/transport.py", line 131, in _send
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager     timeout=timeout, retry=retry)
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 559, in send
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager     retry=retry)
2018-09-28 12:03:09.969 4524 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line ...
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2018-09-21 16:39:26 -0500 commented answer Queens: openstack network agent list is missing nova metadata agent

Thanks allot Bernd, i am not sure what's wrong. I have un-installed the compute and network service pakages and re-installed again, restarted all the services. Now it's working. I appreciate your help.

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2018-09-20 17:49:22 -0500 commented answer Queens: openstack network agent list is missing nova metadata agent

Now compute node is synced with Controller. Still Nova Metadata agent is missing

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2018-09-20 14:29:30 -0500 asked a question Queens: openstack network agent list is missing nova metadata agent

image description

    **controller**
    vim  /var//log/neutron/linuxbridge-agent.log 

    ERROR neutron.plugins.ml2.drivers.agent._common_agent [-] Failed reporting state!: MessagingTimeout: Timed out waiting for a reply to message ID f1f5e05ffedc4350ac307a676dd3f6aa


    **compute node**

    **root@compute01 ~]# systemctl status neutron-linuxbridge-agent.service**

    ● neutron-linuxbridge-agent.service - OpenStack Neutron Linux Bridge Agent
       Loaded: loaded (/usr/lib/systemd/system/neutron-linuxbridge-agent.service; enabled; vendor preset: disabled)
       Active: **failed (Result: start-limit**) since Thu 2018-09-20 18:31:11 EDT; 14min ago

      Process: 38407 ExecStart=/usr/bin/neutron-linuxbridge-agent --config-file /usr/share/neutron/neutron-dist.conf --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/linuxbridge_agent.ini --config-dir /etc/neutron/conf.d/common --config-dir /etc/neutron/conf.d/neutron-linuxbridge-agent --log-file /var/log/neutron/linuxbridge-agent.log (code=exited, status=1/FAILURE)

      Process: 38400 ExecStartPre=/usr/bin/neutron-enable-bridge-firewall.sh (code=exited, status=0/SUCCESS)
     Main PID: 38407 (code=exited, status=1/FAILURE)

    Sep 20 18:31:11 compute01 systemd[1]: **Unit neutron-linuxbridge-agent.service entered failed state.**
    Sep 20 18:31:11 compute01 systemd[1]**: neutron-linuxbridge-agent.service failed.**
    Sep 20 18:31:11 compute01 systemd[1]: neutron-linuxbridge-agent.service holdoff time over, scheduling restart.
    Sep 20 18:31:11 compute01 systemd[1]: start request repeated too quickly for neutron-linuxbridge-agent.service
    Sep 20 18:31:11 compute01 systemd[1]: **Failed to start OpenStack Neutron Linux Bridge Agent.**
    Sep 20 18:31:11 compute01 systemd[1]: **Unit neutron-linuxbridge-agent.service entered failed state.**
    Sep 20 18:31:11 compute01 systemd[1]: **neutron-linuxbridge-agent.service failed.**
    [root@compute01 ~]#

----
[root@controller opt]# openstack network agent list
+--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
| ID                                   | Agent Type         | Host       | Availability Zone | Alive | State | Binary                    |
+--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
| 109 | Linux bridge agent | compute02  | None        | :-)   | UP    | neutron-linuxbridge-agent |
| 188 | DHCP agent         | controller | nova              | :-)   | UP    | neutron-dhcp-agent        |
| 2f4 | Linux bridge agent | controller | None            | :-)   | UP    | neutron-linuxbridge-agent |
| 4ff | L3 agent           | controller | nova                 | :-)   | UP    | neutron-l3-agent          |
| ca0| Metadata agent     | controller | None            | :-)   | UP    | neutron-metadata-agent    |
+--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
[root@controller opt]# 

I added new compute02 node it's fine, from the new node copied nova.conf and neutron.conf file(changed management ip) but no luck
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2017-07-07 13:16:42 -0500 commented question Minimal devstack with nova and floating ips

Hi, using devstack, have you been able to provide manual floating ip, gateway and fixed ip range for the openstack vms successfully ?

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