使用 MongoDB4.0 进行密码认证,无法成功接入数据源。 about emqx HOT 11 OPEN

node {
  name = "[email protected]"
  cookie = "emqxsecretcookie"
  data_dir = "/var/lib/emqx"
}

cluster {
  name = emqxcl
  discovery_strategy = manual
}

mongodb {
  use_legacy_protocol = "true"
}

authentication = [
  {
    backend = mongodb
    collection = users
    database = mqtt
    filter {
      username = "${username}"
    }
    mechanism = password_based
    mongo_type = single
    password_hash_algorithm {name = sha256, salt_position = suffix}
    password_hash_field = password_hash
    pool_size = 8
    salt_field = salt
    server = "127.0.0.1:27017"
    srv_record = false
    ssl {enable = false, verify = verify_peer}
    topology {
      connect_timeout_ms = "20s"
    }
    use_legacy_protocol = true # <================ 把这行加上
  }
]

Using MongoDB:		4.2.14

2024-05-24T02:19:43.218437+00:00 [warning] msg: start_resource_failed, id: <<"emqx_authn_mongodb:1">>, reason: {start_pool_failed,<<"emqx_authn_mongodb:1">>,{connect_failed,{saslStart,#{<<"code">> => 18,<<"codeName">> => <<"AuthenticationFailed">>,<<"errmsg">> => <<"Authentication failed.">>}}}}

authentication = [
  {
    backend = mongodb
    collection = users
    database = mqtt
    enable = true
    filter {
      username = "${username}"
    }
    is_superuser_field = is_superuser
    mechanism = password_based
    mongo_type = single
    password = xxx
    password_hash_algorithm {name = sha256, salt_position = suffix}
    password_hash_field = password_hash
    pool_size = 8
    salt_field = salt
    server = "127.0.0.1:27019"
    srv_record = false
    ssl {
      ciphers = []
      depth = 10
      enable = false
      hibernate_after = 5s
      log_level = notice
      reuse_sessions = true
      secure_renegotiate = true
      verify = verify_none
      versions = [tlsv1.3, tlsv1.2]
    }
    topology {
      connect_timeout_ms = 20s
      heartbeat_frequency_ms = 200s
      max_overflow = 0
    }
    use_legacy_protocol = true
    username = eqmx
  }
]