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https://issues.apache.org/jira/browse/HBASE-18323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16078960#comment-16078960
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Shibin Zhang commented on HBASE-18323:
--------------------------------------

[~elserj]         " always use CREATOR_ALL_ACL, just avoid setting the explicit 
ACL for the same user"
               sorry ,  i don't know what's your meaning in above ,how to avoid 
setting ?
                    " we definitely need some unit test additions for this 
change "
             could you give me some advice? what kind of unit test for change? 
some logic maybe confused to me.

           




> Remove multiple ACLs for the same user in kerberos
> --------------------------------------------------
>
>                 Key: HBASE-18323
>                 URL: https://issues.apache.org/jira/browse/HBASE-18323
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.2.0, 3.0.0
>            Reporter: Shibin Zhang
>            Priority: Minor
>         Attachments: HBASE-18323.patch, HBASE-18323-V2.patch, 
> HBASE-18323-V3.patch
>
>
> When deploy hbase in kerberos way ,there will be multiple acls in znode :
> 'world,'anyone
> : r
> 'sasl,'hbase
> : cdrwa
> 'sasl,'hbase
> : cdrwa
> I also see the related issue and apply the patch, like  
> https://issues.apache.org/jira/browse/HBASE-17717 
> but in my environment ,this situation still appear,
> After dig into the code , i found the reason in source code  ZKUtil.createAcl 
>  is
>  if (zkw.isClientReadable(node)) {
>         LOG.error("isSecureZooKeeper user: clientReadable");
>         acls.addAll(Ids.CREATOR_ALL_ACL);
>         acls.addAll(Ids.READ_ACL_UNSAFE);
>       } else {
>         LOG.error("isSecureZooKeeper user: clientReadable no");
>         acls.addAll(Ids.CREATOR_ALL_ACL);
>       } 
>   acls.addAll(Ids.CREATOR_ALL_ACL);   
>   
>   Id AUTH_IDS = new Id("auth", "");
> ArrayList<ACL> CREATOR_ALL_ACL = new ArrayList(Collections.singletonList(new 
> ACL(31, AUTH_IDS)));
> AUTH_IDS   with  "auth " will result  current connection auth user  add to 
> znode acl ,
> so it will appear multiple acls for same users.
> I think this line of code  we can remove  :  
> acls.addAll(Ids.CREATOR_ALL_ACL);   



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