<div dir="ltr"><div dir="auto"><div></div><div>As suggested in the referenced email, have you checked your logs? Additionally check to be sure that your MySQL connection information is correct and that MySQL is bound to the IP address that resolves to "controller" as you have in your connection string. Hopefully some of this helps you get to a resolution.<br><br></div><div>Kind regards,<br><br></div><div>Melvin Hillsman<br></div><div><br>On Jul 31, 2016, at 6:46 PM, 张余歌 <<a href="mailto:patrickstar12358@hotmail.com" target="_blank">patrickstar12358@hotmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div><div style="font-family:Calibri,sans-serif;font-size:11pt">My error is the same as this link:<br><a href="http://lists.openstack.org/pipermail/openstack-operators/2016-March/009821.html" target="_blank">http://lists.openstack.org/pipermail/openstack-operators/2016-March/009821.html</a><br>But I can't solve this problem,have somebody know how to solve?thanks a lot<br>從我的 Windows Phone 寄出</div></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>OpenStack-operators mailing list</span><br><span><a href="mailto:OpenStack-operators@lists.openstack.org" target="_blank">OpenStack-operators@lists.openstack.org</a></span><br><span><a href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators" target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators</a></span><br></div></blockquote></div></div>