问题
I've successfully installed Openstack Devstack pike on my Ubuntu 16.04 by following this link: https://www.mirantis.com/blog/how-to-install-openstack-on-your-local-machine-using-devstack/.
when i tried to create an instance i got No sql_connection parameter is established as an error.
I've checked /etc/nova/nova.conf and database configuration was as following:
[database] connection = mysql+pymysql://root:mypassword@127.0.0.1/nova_cell0?charset=utf8
[api_database] connection = mysql+pymysql://root:mypassword@127.0.0.1/nova_api?charset=utf8
Besides i didn't find where the logs related to openstack are located. I only accessed to /opt/stack/logs/stack.sh.log and it doesn't any process.
How can i resolve this issue? I'll be grateful if someone could help me resolving it.
回答1:
I had this problem on Devstack Pike when I wanted to create a VM (from a HOT template) connecting it to an already existing network (public, which exists by default.) (You can set up networking for a VM in (at least) 2 ways: either connect a port to it, or connect the VM to an existing network. In the latter case a port is implicitly created.)
The problem was that public belonged to another project.
When I specified a network that belonged to the same project, it was successful.
I hope this helps.
Edit: Btw, the Devstack logs go into the syslog.
来源：https://stackoverflow.com/questions/48648094/error-no-sql-connection-parameter-is-established-when-creating-instances-on-ope