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openstack – restart error : Max retries exceeded with url

If you install openstack by devstack, when you reboot your server and restart the openstack by this script, when you browse to the dashboard and you will see this error message “HTTPConnectionPool(host=’′, port=8776): Max retries exceeded with url: /v1/b721f5b1f7cd43dd83ee573f6d4e6c74/os-quota-sets/b721f5b1f7cd43dd83ee573f6d4e6c74 (Caused by <class ‘socket.error’>: [Errno 111] Connection refused)

You should check with your endpoints server by command : keystone endpoint-list

You will see the url “/v1/b721f5b1f7cd43dd83ee573f6d4e6 in the error message is from the port 8776, and port 8776 is cinder service, so all you need to do is start cinder manually by

cd /opt/stack/cinder/bin

After that, your dashboard will be fine

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