我想用 ruby-kafka 宝石发送信息，但我得到的错误 Could not connect to any of the seed brokers ```
kafka::ConnectionError: Could not connect to any of the seed brokers:

• kafka:broker1: Connection error EOFError: EOFError
• kafka:broker2: Connection error EOFError: EOFError
• kafka:broker3: Connection error EOFError: EOFError
• kafka:broker4: Connection error EOFError: EOFError

https://github.com/zendesk/ruby-kafka
我创造了 `krb5.keytab` 用于身份验证的文件。

kafka = Kafka.new(["broker1",
"broker2",
"broker3",
"broker4"
],
sasl_gssapi_keytab: '/etc/krb5.keytab')
kafka.deliver_message("Hello, World!", topic: "TestTopic")

有人知道我为什么会犯这个错误吗？