同样的账号密码，能访问publish api, 但是连MQTTX连不上

[zgq0794]

curl -i --basic -u 'admin:cheersu1234!'  -X 'POST' \
  'http://192.168.51.XX:18083/api/v5/publish' \
  -H 'accept: application/json' \
  -H 'Content-Type: application/json' \
  -d '{
  "payload_encoding": "plain",
  "topic": "api/example/topic",
  "qos": "0",
  "clientid": "api_example_client",
  "payload": "hello emqx api",
  "retain": false
}'
HTTP/1.1 202 Accepted
content-length: 54
content-type: application/json
date: Thu, 22 Dec 2022 08:26:27 GMT
server: Cowboy

{"message":"no_matching_subscribers","reason_code":16}

错误报告

环境

• EMQX 版本：5.0.9
• 操作系统版本：ubuntu16.04

重现此问题的步骤

1. xxx
2. xxx
3. xxx

预期行为

实际行为

---

功能请求

描述你需要的功能

为什么你需要这个功能

---

其他

[t1ger]

HTTP API 访问的是 HTTP 的监听端口，MQTT 客户端连接的是 MQTT 的监听端口，这俩的认证也不是一个体系的，用户名密码当然不能通用。

[zgq0794]

MQTT客户端连接应该用哪套用户名密码？

[t1ger]

你可以看下官网的 认证 文档。

[zgq0794]

用的redis认证，密码方式时plain, 用设置的账号名密码登录不上

[t1ger]

你可以 trace 一下这个客户端看下连接时的详细日志。

[zgq0794]

2022-12-22T12:18:58+00:00 [MQTT] test_client@192.168.51.35:58907 msg: mqtt_packet_received, packet: CONNECT(Q0, R0, D0),ClientId=test_client, ProtoName=MQTT, ProtoVsn=5, CleanStart=true, KeepAlive=60, Username=admin, Password=******
2022-12-22T12:18:58+00:00 [QUERY] test_client@192.168.51.35:58907 msg: redis_connector_received, connector: emqx_authn_redis:1, sql: HMGETmqtt_user:adminpassword, state: [auto_reconnect: true, poolname: emqx_authn_redis:1:2, type: single]
2022-12-22T12:18:58+00:00 [AUTHN] test_client@192.168.51.35:58907 msg: authenticator_result, authenticator: password_based:redis, result: {error,bad_username_or_password}
2022-12-22T12:18:58+00:00 [AUTHN] test_client@192.168.51.35:58907 msg: authentication_result, reason: chain_result, result: {stop,{error,bad_username_or_password}}
2022-12-22T12:18:58+00:00 [MQTT] test_client@192.168.51.35:58907 msg: mqtt_packet_sent, packet: CONNACK(Q0, R0, D0),AckFlags=0, ReasonCode=134
2022-12-22T12:18:58+00:00 [SOCKET] test_client@192.168.51.35:58907 msg: emqx_connection_terminated, reason: {shutdown,bad_username_or_password}
这就是trace的日志

[t1ger]

日志报了用户名或密码错误，看下你 Redis 认证具体是怎么配置的？