openstack—執行keystone-manage db_sync失敗

筆者目前執行keystone-manage遇到兩種情形的失敗mysql 情形1：sql 執行命令後卡主不動，查看/etc/keystone/keystone.log日誌發現以下bash 2019-02-20 15:40:16.740 32640 WARNING oslo_db.sqlalchemy.engines [-] SQL connection failed. -1 attempts lef

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