This is what it looked like on cinder/1: 2016-03-30 20:01:18.200 542 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 10 attempts left. 2016-03-30 20:01:28.219 542 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 9 attempts left. 2016-03-30 20:01:38.285 542 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 8 attempts left. 2016-03-30 20:01:48.302 542 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 7 attempts left. 2016-03-30 20:01:58.308 542 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 6 attempts left. 2016-03-30 20:02:01.068 8920 WARNING cinder.api [-] The v1 api is deprecated and will be removed in the Liberty release. You should set enable_v1_api=false and enable_v2_api=true in your cinder.conf file. 2016-03-30 20:02:01.377 8920 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 10 attempts left. 2016-03-30 20:02:11.385 8920 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 9 attempts left. 2016-03-30 20:02:21.403 8920 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 8 attempts left. 2016-03-30 20:02:31.444 8920 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 7 attempts left. 2016-03-30 20:02:41.453 8920 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 6 attempts left. 2016-03-30 20:02:51.469 8920 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 5 attempts left. 2016-03-30 20:03:01.481 8920 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 4 attempts left. 2016-03-30 20:03:15.649 23889 WARNING cinder.api [-] The v1 api is deprecated and will be removed in the Liberty release. You should set enable_v1_api=false and enable_v2_api=true in your cinder.conf file. 2016-03-30 20:03:16.331 23889 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 10 attempts left. 2016-03-30 20:03:26.350 23889 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 9 attempts left. 2016-03-30 20:03:36.374 23889 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 8 attempts left. 2016-03-30 20:03:46.408 23889 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 7 attempts left. 2016-03-30 20:03:56.423 23889 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 6 attempts left. 2016-03-30 20:04:06.437 23889 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 5 attempts left. 2016-03-30 20:04:16.445 23889 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 4 attempts left. 2016-03-30 20:04:26.453 23889 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 3 attempts left. 2016-03-30 20:04:36.455 23889 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 2 attempts left. 2016-03-30 20:04:41.929 9820 WARNING cinder.api [-] The v1 api is deprecated and will be removed in the Liberty release. You should set enable_v1_api=false and enable_v2_api=true in your cinder.conf file. 2016-03-30 20:04:42.308 9820 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 10 attempts left. 2016-03-30 20:04:52.317 9820 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 9 attempts left. 2016-03-30 20:05:02.326 9820 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 8 attempts left. 2016-03-30 20:05:12.338 9820 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 7 attempts left. 2016-03-30 20:05:22.360 9820 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 6 attempts left. 2016-03-30 20:05:32.425 9820 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 5 attempts left. 2016-03-30 20:05:42.437 9820 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 4 attempts left. 2016-03-30 20:05:52.461 9820 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 3 attempts left. 2016-03-30 20:06:02.471 9820 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 2 attempts left. 2016-03-30 20:06:12.481 9820 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. 1 attempts left. 2016-03-30 20:06:22.488 9820 CRITICAL cinder [-] DBConnectionError: (pymysql.err.OperationalError) (2003, 'Can\'t connect to MySQL server on \'10.245.202.30\' ((1129, u"Host \'node-8.vmwarestack\' is blocked because of many connection errors; unblock with \'mysqladmin flush-hosts\'"))') You can see the error count gets reset a few times, but the last time the number of attempts was exhausted.