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Comment by Bernd Bausch for Hi. I have a controller and a compute node for...

`Can't connect to MySQL server on 'controller'` could mean the DB connection string in nova.conf is wrong, or MySQL isn't running, or you network or firewall config is incorrect. Or other reasons.

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Comment by razvlix for Hi. I have a controller and a compute node for test...

You can try this: https://ask.openstack.org/en/question/11278/how-to-resolve-cant-connect-to-mysql-server-on-a-particular-host-name-in-configuring-the-keystone/

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Error status after creating VM instance

Hi. I have a controller and a compute node for test purposes. Yesterday, I successfully was able to create instances. They got IP address, etc, everything was fine. Today, I am not able to create VMs,...

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