{"action":"opened","issue":{"url":"https://api.github.com/repos/emqtt/emqttd/issues/587","repository_url":"https://api.github.com/repos/emqtt/emqttd","labels_url":"https://api.github.com/repos/emqtt/emqttd/issues/587/labels{/name}","comments_url":"https://api.github.com/repos/emqtt/emqttd/issues/587/comments","events_url":"https://api.github.com/repos/emqtt/emqttd/issues/587/events","html_url":"https://github.com/emqtt/emqttd/issues/587","id":158872614,"number":587,"title":"load mysql plugin error","user":{"login":"xurwxj","id":683421,"avatar_url":"https://avatars.githubusercontent.com/u/683421?v=3","gravatar_id":"","url":"https://api.github.com/users/xurwxj","html_url":"https://github.com/xurwxj","followers_url":"https://api.github.com/users/xurwxj/followers","following_url":"https://api.github.com/users/xurwxj/following{/other_user}","gists_url":"https://api.github.com/users/xurwxj/gists{/gist_id}","starred_url":"https://api.github.com/users/xurwxj/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/xurwxj/subscriptions","organizations_url":"https://api.github.com/users/xurwxj/orgs","repos_url":"https://api.github.com/users/xurwxj/repos","events_url":"https://api.github.com/users/xurwxj/events{/privacy}","received_events_url":"https://api.github.com/users/xurwxj/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-06-07T09:00:13Z","updated_at":"2016-06-07T09:00:13Z","closed_at":null,"body":"```\r\n16:58:47.001 <0.1648.0> [error] load plugin emqttd_plugin_mysql error, cannot start app emqttd_plugin_mysql for {bad_return,{{emqttd_plugin_mysql_app,start,[normal,[]]},{'EXIT',{{badmatch,{error,{shutdown,{failed_to_start_child,emqttd_plugin_mysql,{shutdown,{failed_to_start_child,worker_sup,{shutdown,{failed_to_start_child,{worker,4},{{badmatch,{error,nxdomain}},[{mysql,init,1,[{file,\"src/mysql.erl\"},{line,483}]},{gen_server,init_it,6,[{file,\"gen_server.erl\"},{line,328}]},{proc_lib,init_p_do_apply,3,[{file,\"proc_lib.erl\"},{line,240}]}]}}}}}}}}},[{emqttd_plugin_mysql_app,start,2,[{file,\"src/emqttd_plugin_mysql_app.erl\"},{line,33}]},{application_master,start_it_old,4,[{file,\"application_master.erl\"},{line,273}]}]}}}}\r\n```\r\nhow to fix?\r\nthanks a lot."}}
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