star5's profile - activity

@Bernd Bausch: I have actually read the link you posted up and down. And that is the basis of my understanding. However, I couldn't find any documentation which explains the sort of activities that triggers the usage of RabbitMQ exchanges, queues or connections.

I have been experimenting a lot with this. While the creation of an instance creates 1 exchange and 1 queue and 2 connection, it is never the same. I ran a script to keep creating instances until the resources exhaust. But it created few connections, exchanges and queues and then used the same.

I have been trying to understand how RabbitMQ works and what creates exchanges and queues in RabbitMQ? I have gone through the openstack documentation and only an abstract info is provided.

Could anyone point me in the direction of what creates exchanges and queues in RabbitMQ openstack? For instance, creating an instance normally creates a queue. When u repeat the creation of another instance, the previous queue that was created was being used. I was able to monitor this through enabling the management plugin of RabbitMQ and having access to the web management panel.

What activities generally create the message in the queue for RabbitMQ? I have enables the management plugin to keep a tab on rabbitmq. Does activating TCP connections to a client create a message as well?

@Bernd Bausch : Any take on the issue ?

I am having issues setting up neutron.

Infrastructure details:

Operating System : Ubuntu 18.04.1 LTS

1 x controller and 1 x compute

Openstack installation : Rocky

Guide following:https://docs.openstack.org/install-guide/ (https://docs.openstack.org/install-gu...)

Each node has 2 NICs:-

NIC 1 (eth0) - https://imgur.com/a/7QbcU1E (gateway: 192.168.0.1)

NIC 2 (eth1) (Has internet connection) - https://imgur.com/a/tyddrjA (gateway: 192.168.10.1)

ifconfig output - https://imgur.com/a/tyddrjA

Openstack network : https://docs.openstack.org/install-guide/overview.html#networking-option-2-self-service-networks (https://docs.openstack.org/install-gu...) (Option2: Self-Service Network)

I have followed the instructions to the exact thing in the documentation few times.

Error while launching a new instance:

Error: Failed to perform requested operation on instance "node11", the instance has an error status: Please try again later [Error: Build of instance bb5703a2-2bfe-42a9-9e69-7bb1a8e8cfd5 aborted: Failed to allocate the network(s), not rescheduling.].

Configs files of controller:

neutron config: https://pastebin.com/s616S5aT

/etc/neutron/plugins/ml2/linuxbridge_agent.ini : https://pastebin.com/brrcDazy

/etc/neutron/plugins/ml2/ml2_conf.ini : https://pastebin.com/CbtV4iJn

/etc/neutron/l3_agent.ini : https://pastebin.com/NFm0zkRT

Logs of controller:

Neutron server log: https://pastebin.com/kRdhwGU5

Linuxbridge Agent log : https://pastebin.com/8NApWgYn

Logs of compute node:

nova-compute.log : https://pastebin.com/em3epqpx

neutron-linuxbridge-agent.log: https://pastebin.com/krYMmhKn

Closing this one, based on your inputs, I have started openstack installation from scratch and stuck at neutron config. I have created a new question with latest details of the configuration.

Should I be creating a bridge between the NICs before setting up neutron on the controller and compute. I am trying a fresh install again.

What I am trying to do is to get two clouds setup and their instances communicate with each other. I don't know what network type should I setup: Networking option 1 or networking option 2 mentioned here (https://docs.openstack.org/install-guide/overview.html (https://docs.openstack.org/install-gu...)) ??

In this explanation: https://docs.openstack.org/neutron/rocky/install/controller-install-option1-ubuntu.html (https://docs.openstack.org/neutron/ro...) The linux bridge is supposed to be :physical_interface_mappings = provider:PROVIDER_INTERFACE_NAME . And according to my setup management interface = eth0 and provider interface = eth1.

1) None of these ports are listed in the response. But I have created all the services and their endpoints and I can access all of them on the browser.

2) Yes I have enough resources.

3) My hardware does support virtualization. But nonetheless I have kept virt_type to qemu.

@Bernd Bausch: Updated the post with details and all info about the network.

Thanks @Bernd Bausch: Yes I did update the original post, but I suppose it is awaiting moderation. This is the logs from neutron :https://pastebin.com/EY4tTRhJ

I have checked the config logs in the controller and compute nodes for nova and it is perfect.

I have added the nova compute log from one of the compute nodes. I can see a neutron error in there. Is that the problem?

Yes I did try without the volume and it gives me another error. Added to the original post. I will try to fix the volume setup though. But even without the volume it gives me error.

Its the default Cirros that I tried.

Setup Information: 1xController (name: controllerstack) 2xCompute nodes. (name: computestack, computestack2)

Network setup : NIC 1 (eth0) - 192.168.0.0/24 Network setup : NIC 2 (eth1) - 192.168.10.0/24 (has internet connection)

Setup guide being followed: Openstack Rocky Installation guide (https://docs.openstack.org/install-guide/ (https://docs.openstack.org/install-gu...)) Neutron Setup: Networking Option 1: Provider networks - https://docs.openstack.org/neutron/rocky/install/controller-install-option1-ubuntu.html (https://docs.openstack.org/neutron/ro...)

I am trying to create an instance from horizon on the controller and I get the following error

Error: Failed to perform requested operation on instance "c3", the instance has an error status: Please try again later [Error: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 05d7247e-c157-4744-82ba-8a73c5cb42ae.].

Logs on controller: nova-api.log : https://pastebin.com/CiYD3Pez apache2 error.log : https://pastebin.com/Fck0C0kt

Logs from compute: Nova-compute.log : https://pastebin.com/Www7vHcr

I haven't gone through the logs in each compute nodes. Any input would be valuable.

UPDATE:

Network created on openstack : https://imgur.com/a/6KcTgXL

SubNet: https://imgur.com/a/5ANATGP

neutron-server.log (updated): https://pastebin.com/EY4tTRhJ

response of ifconfig on controller: https://imgur.com/a/qDGHhda Note: eth0 is all connected to a switch. eth1 is connected to another switch with Internet connection.

ml2_conf.ini (controller): https://pastebin.com/gik8c5G2

linuxbridge_agent.ini (controller): https://pastebin.com/QRCDtJ97

ml2_conf.ini (compute node1): https://pastebin.com/tfXybJpu

linuxbride_agent.ini (compute node1): https://pastebin.com/Xqxf2EwY

I was able to fix the issue. I had to restart the memcache service. I still keep getting the errors every now and then. And when I do :

1. service memcached restart.
2. Clear browser cookies and cache.

But it is sometimes still annoying even with the fix.

I am installing openstack using https://docs.openstack.org/install-guide/openstack-services.html (https://docs.openstack.org/install-gu...) (rocky)

I am stuck at neutron installation. I am using the https://docs.openstack.org/neutron/rocky/install/controller-install-option1-ubuntu.html (Networking Option 1: Provider networks). After all the steps and at the verification when I run : $ openstack extension list --network

I get the below error:

REQ: curl -g -i -X GET http://controllerstack:9696/v2.0/extensions -H "Accept: application/json" -H "User-Agent: openstacksdk/0.17.2 keystoneauth1/3.10.0 python-requests/2.18.4 CPython/2.7.15rc1" -H "X-Auth-Token: {SHA1}2e862b28c61bdb114ca81e4ace5c9723d4c25270"

Starting new HTTP connection (1): controllerstack Failure: Unable to establish connection to http://controllerstack:9696/v2.0/extensions (http://controllerstack:9696/v2.0/exte...): HTTPConnectionPool(host='controllerstack', port=9696): Max retries exceeded with url: /v2.0/extensions (Caused by NewConnectionError('<urllib3.connection.httpconnection 0x7ff9c5cf4e10="" at="" object="">: Failed to establish a new connection: [Errno 111] Connection refused',)). Retrying in 0.5s.</urllib3.connection.httpconnection>

I don't know what is the issue. The name of my controller is controllerstack and I have the right ip address mentioned in /etc/hosts and furthermore, I have no spelling issues in nova.conf.