我正在尝试在Kafka中实现安全性，以使用用户名和密码对客户端进行身份验证 . jaas配置文件配置正确 . 我首先启动zookeeper，然后只启动一个kafka节点 . 但是kafka无法从以下错误开始：
[2017-08-07 13:07:08,029] INFO Registered broker 0 at path /brokers/ids/0 with addresses: EndPoint(localhost,9092,ListenerName(SASL_PLAINTEXT),SASL_PLAINTEXT) (kafka.utils.ZkUtils)
[2017-08-07 13:07:08,035] INFO Kafka version : 0.11.0.0 (org.apache.kafka.common.utils.AppInfoParser) [2017-08-07 13:07:08,036] INFO Kafka commitId : cb8625948210849f (org.apache.kafka.common.utils.AppInfoParser)
[2017-08-07 13:07:08,037] INFO [Kafka Server 0], started (kafka.server.KafkaServer)
[2017-08-07 13:07:08,447] WARN Connection to node 0 terminated during authentication. This may indicate that authentication failed due to invalid credentials. (org.apache.kafka.clients.NetworkClient)
[2017-08-07 13:07:08,554] WARN Connection to node 0 terminated during authentication. This may indicate that authentication failed due to invalid credentials. (org.apache.kafka.clients.NetworkClient)
[2017-08-07 13:07:08,662] WARN Connection to node 0 terminated during authentication. This may indicate that authentication failed due to invalid credentials. (org.apache.kafka.clients.NetworkClient)