详情如下：

javax.security.sasl.SaslException: An error: 
(java.security.PrivilegedActionException: javax.security.sasl.SaslException: 
GSS initiate failed [Caused by GSSException: No valid credentials provided 
(Mechanism level: Clock skew too great (37) - PROCESS_TGS)]) 
occurred when evaluating SASL token received from the Kafka Broker. 
Kafka Client will go to AUTH_FAILED state.

Caused by: javax.security.sasl.SaslException: GSS initiate failed

Caused by: org.ietf.jgss.GSSException: No valid credentials provided 
(Mechanism level: Clock skew too great (37) - PROCESS_TGS)

Caused by: sun.security.krb5.KrbException: Clock skew too great (37) - PROCESS_TGS

Caused by: sun.security.krb5.Asn1Exception: Identifier doesn't match expected value (906)

原因：消费者运行的机器时钟和kafka集群的时钟不同步；