Issue in Flink/Zookeeper authentication via Kerberos

Posted by Sahu, Sarthak 1. (Nokia - IN/Bangalore) on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/Issue-in-Flink-Zookeeper-authentication-via-Kerberos-tp19120.html

Hi Folks,

 

  Environment Setup:

1. I have configured KDC 5 server.
2. Configured Kerberos in zookeeper-3.4.10 wherein I can able to connect ZooKeeper Server/Client via Kerberos authentication.
3. Now flink-1.4.0 has configured for Kerberos authentication as per below instruction.

• https://ci.apache.org/projects/flink/flink-docs-release-1.4/ops/config.html#kerberos-based-security
• https://ci.apache.org/projects/flink/flink-docs-release-1.4/ops/config.html#kerberos-based-security-1

  Success Scenario:

1. All Kerberos configuration parameter is correct and flink/zookeeper able to connect trough TGT.

 Problem:

1. Even if wrong Kerberos credentials given, flink able to connect ZooKeeper.

 

Please find the taskmanager/jobmanger logs and flink config file for both scenario attached.

 

Hoping for quick resolution.

 

Regards

Sarthak Sahu