Hi Now I try to deplay Openstack roles in mutil node Centos 6.5, havana GRE. I try mysql and keystone in separate node。 I meet the error [ ERROR ] ERROR : Error appeared during Puppet run: 172.18.1.15_keystone.pp Error: /Stage[main]/Keystone/Exec[keystone-manage db_sync]: Failed to call refresh: keystone-manage db_sync returned 1 instead of one of [0] I check the log, show ^[[mNotice: /Stage[main]/Keystone/Keystone_config[DEFAULT/verbose]/ensure: created^[[0m ^[[mNotice: /Stage[main]/Keystone/Exec[keystone-manage db_sync]/returns: 2014-02-18 13:17:34.335 2941 CRITICAL keystone [-] ( OperationalError) (2003, "Can't connect to MySQL server on '172.18.1.13' (113)") None None^[[0m ^[[1;31mError: /Stage[main]/Keystone/Exec[keystone-manage db_sync]: Failed to call refresh: keystone-manage db_sync returned 1 instead of one of [0]^[[0m ^[[1;31mError: /Stage[main]/Keystone/Exec[keystone-manage db_sync]: keystone-manage db_sync returned 1 instead of one of [0]^ [[0m ^[[mNotice: /Stage[main]/Keystone/Exec[keystone-manage pki_setup]: Triggered 'refresh' from 14 events^[[0m ^[[mNotice: /Stage[main]/Keystone/Service[keystone]/ensure: ensure changed 'stopped' to 'running'^[[0m ^[[1;31mError: /Stage[main]/Keystone::Roles::Admin/Keystone_role[_member_]: Could not evaluate: Execution of '/usr/bin/keysto ne --endpoint http://127.0.0.1:35357/v2.0/ role-list' returned 1: An unexpected error prevented the server from fulfilling yo ur request. (OperationalError) (2003, "Can't connect to MySQL server on '172.18.1.13' (113)") None None (HTTP 500) ^[[0m -- Shake Chen