环境信息
- EMQX 版本：4.1
- 操作系统及版本：ubuntu20.0.4
- 其他：mysql8.0.29
问题描述
{emqx_auth_mysql, {bad_return, {{emqx_auth_mysql_app,start,[normal,[]]}, {'EXIT', {{badmatch, {error, {shutdown, {failed_to_start_child,emqx_auth_mysql, {shutdown, {failed_to_start_child,worker_sup, {shutdown, {failed_to_start_child, {worker,1}, {{auth_method,<<"caching_sha2_password">>}, [{mysql_protocol,build_handshake_response,5, [{file, "/emqx-enterprise-rel/_checkouts/mysql/src/mysql_protocol.erl"}, {line,386}]}, {mysql_protocol,handshake,7, [{file, "/emqx-enterprise-rel/_checkouts/mysql/src/mysql_protocol.erl"}, {line,72}]}, {mysql_conn,init,1, [{file, "/emqx-enterprise-rel/_checkouts/mysql/src/mysql_conn.erl"}, {line,111}]}, {gen_server,init_it,2,[{file,"gen_server.erl"},{line,374}]}, {gen_server,init_it,6,[{file,"gen_server.erl"},{line,342}]}, {proc_lib,init_p_do_apply,3, [{file,"proc_lib.erl"},{line,249}]}]}}}}}}}}}, [{emqx_auth_mysql_app,start,2, [{file, "/emqx-enterprise-rel/_checkouts/emqx_auth_mysql/src/emqx_auth_mysql_app.erl"}, {line,38}]}, {application_master,start_it_old,4, [{file,"application_master.erl"},{line,277}]}]}}}}}
配置文件及日志
##--------------------------------------------------------------------
## MySQL Auth/ACL Plugin
##--------------------------------------------------------------------
## MySQL server address.
##
## Value: Port | IP:Port
##
## Examples: 3306, 127.0.0.1:3306, localhost:3306
auth.mysql.server = 10.230.117.73:3306
## MySQL pool size.
##
## Value: Number
auth.mysql.pool = 8
## MySQL username.
##
## Value: String
auth.mysql.username = root
## MySQL password.
##
## Value: String
auth.mysql.password = xjqxz
## MySQL database.
##
## Value: String
auth.mysql.database = mqtt
## MySQL query timeout
##
## Value: Duration
auth.mysql.query_timeout = 5s
## Variables: %u = username, %c = clientid
## Authentication query.
##
## Note that column names should be 'password' and 'salt' (if used).
## In case column names differ in your DB - please use aliases,
## e.g. "my_column_name as password".
##
## Value: SQL
##
## Variables:
## - %u: username
## - %c: clientid
## - %C: common name of client TLS cert
## - %d: subject of client TLS cert
##
auth.mysql.auth_query = select password from mqtt_user where username = '%u' limit 1
## auth.mysql.auth_query = select password_hash as password from mqtt_user where username = '%u' limit 1
## Password hash.
##
## Value: plain | md5 | sha | sha256 | bcrypt
auth.mysql.password_hash = sha256
## sha256 with salt prefix
## auth.mysql.password_hash = salt,sha256
## bcrypt with salt only prefix
## auth.mysql.password_hash = salt,bcrypt
## sha256 with salt suffix
## auth.mysql.password_hash = sha256,salt
## pbkdf2 with macfun iterations dklen
## macfun: md4, md5, ripemd160, sha, sha224, sha256, sha384, sha512
## auth.mysql.password_hash = pbkdf2,sha256,1000,20
## Superuser query.
##
## Value: SQL
##
## Variables:
## - %u: username
## - %c: clientid
## - %C: common name of client TLS cert
## - %d: subject of client TLS cert
##
auth.mysql.super_query = select is_superuser from mqtt_user where username = '%u' limit 1
## ACL query.
##
## Value: SQL
##
## Variables:
## - %a: ipaddr
## - %u: username
## - %c: clientid
##
## Note: You can add the 'ORDER BY' statement to control the rules match order
## auth.mysql.acl_query = select allow, ipaddr, username, clientid, access, topic from mqtt_acl ## where ipaddr = '%a' or username = '%u' or username = '$all' or clientid = '%c'
