wangyang0918 commented on PR #22509:
URL: https://github.com/apache/flink/pull/22509#issuecomment-1608825216

   > Based on the 
[documentation](https://docs.cloudera.com/documentation/enterprise/6/6.3/topics/cm_mc_yarn_acl.html#concept_activate_yarn_ACLs)
 here, it looks like yarn.acl.enable should be set to true to enable YARN ACLs. 
Just curious, whether it is set in your yarn-site.xml? Interesting, that it 
works after enabling Kerberos, is it because the other cluster or environment 
have this config set?
   
   Yes. I already configured the `yarn.acl.enabled = true` and `yarn.admin.acl 
= hadoop` in YARN cluster.
   
   Using knox to access the YARN UI makes the acl configurations taking effect. 
So it is not related with kerberos.


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