Troubleshooting OpenStack

Error Log The most fundamental method to solve problems is: look at the logs, look at the logs, look at the logs. Moreover, there are call relationships between different components of OpenStack, so multiple logs need to be checked to locate the problem. After installing HORIZON, the WEB cannot be accessed, and the error is 500 INTERNAL SERVER ERROR img Horizon uses the apache service. The new version no longer has a horizon log; it has been integrated into httpd. Therefore, check the relevant logs on the control node: tail