openstack compute service list --service nova-compute empty

1
votes

After the installation of nova-compute on compute node, it failed to start and this command from the controller node return an empty result openstack compute service list --service nova-compute

And the nova-compute.log file contain these two messages:

018-11-19 12:06:05.446 986 INFO os_vif [-] Loaded VIF plugins: ovs, linux_bridge

2018-11-19 12:30:13.784 1140 INFO os_vif [-] Loaded VIF plugins: ovs, linux_bridge openstack compute service list :

return three service components for the controller with a down state

+----+------------------+------------+----------+---------+-------+----------------------------+

| ID | Binary | Host | Zone | Status | State | Updated At

+----+------------------+------------+----------+---------+-------+----------------------------+

| 2 | nova-conductor | Controller | internal | enabled | down | 2018-11-17T17:32:48.000000 |

| 4 | nova-scheduler | Controller | internal | enabled | down | 2018-11-17T17:32:49.000000 |

| 5 | nova-consoleauth | Controller | internal | enabled | down | None

+----+------------------+------------+----------+---------+-------+----------------------------+ service nova-compute status :

Active

How can i resolve these problems ?

1
openstack-nova

1 Answers

1
votes

This is because you might have missed to create the databases for nova_cell0.

# mysql -u root -p

MariaDB [(none)]> CREATE DATABASE nova_cell0;


MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \   IDENTIFIED BY 'NOVA_DBPASS';
 MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \   IDENTIFIED BY 'NOVA_DBPASS';

#su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
# su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
109e1d4b-536a-40d0-83c6-5f121b82b650
# su -s /bin/sh -c "nova-manage db sync" nova
# nova-manage cell_v2 list_cells
#su -s /bin/sh -c "nova-manage api_db sync" nova

make sure in /etc/nova/nova.conf in compute node you have added following configuration:

[DEFAULT]

enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:RABBIT_PASS@controller

Then restart compute services. the try the command openstack compute service list.

this solution also holds good when openstack compute service list is empty or nova hypervisor list is empty.