我在一个启用了kerberos的CDH6.3集群里，提交一个flink1.9版本程序到yarn，需消费集群外一个0.8版本的未启用安全认证的kafka，需要如何设置他不使用安全的方式去连接这个集群外kafka的zookeeper呢？谢谢。   org.apache.flink.shaded.zookeeper.org.apache.zookeeper.client.ZooKeeperSaslClient - Client will use GSSAPI as SASL mechanism. org.apache.flink.shaded.zookeeper.org.apache.zookeeper.ClientCnxn - Opening socket connection to server ark1.analysys.xyz/10.2.33.189:2181. Will attempt to SASL-authenticate using Login Context section 'Client' org.apache.flink.shaded.zookeeper.org.apache.zookeeper.client.ZooKeeperSaslClient - An error: (java.security.PrivilegedActionException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7) - LOOKING_UP_SERVER)]) occurred when evaluating Zookeeper Quorum Member's received SASL token. Zookeeper Client will go to AUTH_FAILED state. ... View more