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how can i add a second compute node ?

asked 2015-05-07 11:20:16 -0500

Fatma gravatar image

updated 2015-05-08 05:08:17 -0500


I Installed OpenStack Juno using the official document by OpenStack guide

I used the minimal architecture "Legacy networking (nova-network)":

  • controller
  • compute
  • storage

my question, how can i add a second compute node ?

Best regards

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answered 2015-05-08 05:10:06 -0500

You could add a second compute node simply following the same guide, repeating the steps followed configuring your first compute node.

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Let's continue here... I didn't understood if your initial setup (controller+compute+storage) correctly works. In addition I did not understood if you are using in such configuration 1 single host or more than one. Is this base configuration working? are you able to start VMs?

Antonio G. gravatar imageAntonio G. ( 2015-05-09 06:03:54 -0500 )edit

i used nova-network,3 physical servers(controller,compute,blockstorage) the first installation work correctely , and i could start a VMs. but i need to add a second compute node. So i did the same configuartion to the second compute node. my issue is the new configuartion of the controller node. BR

Fatma gravatar imageFatma ( 2015-05-11 03:03:35 -0500 )edit

Controller node configuration should not be changed! You simply add the additional compute node, config it as the first one (only changing the IP addr in config files). Controller, if all works correctly, would discover automatically new hosts. BR

Antonio G. gravatar imageAntonio G. ( 2015-05-11 06:52:06 -0500 )edit

thanks a lot its works :)


Fatma gravatar imageFatma ( 2015-05-11 08:40:55 -0500 )edit

answered 2015-05-08 05:38:46 -0500

Fatma gravatar image

this is what i have done, but the problem that i could not configure the controller (/etc/nova/nova.conf) . thank your for your response

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so please post your configuration and your nova logs (in /var/log/nova folder)

Antonio G. gravatar imageAntonio G. ( 2015-05-08 05:42:36 -0500 )edit

configuration of /etc/nova/nova.conf (controller node) : [DEFAULT] .... rpc_backend = rabbit rabbit_host = controller rabbit_password = RABBIT_PASS my_ip = vncserver_listen = vncserver_proxyclient_address = network_api_class =

Fatma gravatar imageFatma ( 2015-05-08 06:10:30 -0500 )edit

security_group_api = nova [database] connection = mysql://nova:NOVA_DBPASS@controller/nova [keystone_authtoken] auth_uri = http://controller:5000/v2.0 identity_uri = http://controller:35357 admin_tenant_name = service admin_user = nova admin_password = NOVA_PASS

Fatma gravatar imageFatma ( 2015-05-08 06:11:18 -0500 )edit


host = controller

Fatma gravatar imageFatma ( 2015-05-08 06:11:40 -0500 )edit

nova logs: nova-api.log nova-cert.log.2.gz nova-conductor.log.4.gz nova-manage.log.1 nova-scheduler.log nova-api.log.1 nova-cert.log.3.gz nova-consoleauth.log nova-manage.log.2.gz nova-scheduler.log.1

Fatma gravatar imageFatma ( 2015-05-08 06:14:53 -0500 )edit

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Asked: 2015-05-07 11:20:16 -0500

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Last updated: May 08 '15