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https://issues.apache.org/jira/browse/ZOOKEEPER-1782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16053136#comment-16053136
 ] 

ASF GitHub Bot commented on ZOOKEEPER-1782:
-------------------------------------------

Github user arshadmohammad commented on a diff in the pull request:

    https://github.com/apache/zookeeper/pull/282#discussion_r122586367
  
    --- Diff: 
src/java/main/org/apache/zookeeper/server/auth/SASLAuthenticationProvider.java 
---
    @@ -38,11 +38,6 @@ public String getScheme() {
         }
     
         public boolean matches(String id,String aclExpr) {
    -        if (System.getProperty("zookeeper.superUser") != null) {
    -            if (id.equals(System.getProperty("zookeeper.superUser")) || 
id.equals(aclExpr)) {
    -              return true;
    -            }
    -        }
             if ((id.equals("super") || id.equals(aclExpr))) {
    --- End diff --
    
    I think we should remove (id.equals("super") also. Lets have only one way 
being super user.


> zookeeper.superUser is not as super as superDigest
> --------------------------------------------------
>
>                 Key: ZOOKEEPER-1782
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1782
>             Project: ZooKeeper
>          Issue Type: Bug
>    Affects Versions: 3.4.5
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>         Attachments: zk-1782.patch, zk-1782.patch
>
>
> The zookeeper.superUser system property does not fully grant super user 
> privileges, like zookeeper.DigestAuthenticationProvider.superDigest does.
> zookeeper.superUser only has as many privileges as the sasl ACLs on the znode 
> being accessed.  This means that if a znode only has digest ACLs 
> zookeeper.superUser is ignored.  Or if a znode has a single sasl ACL that 
> only has read privileges zookeeper.superUser only has read privileges.
> The reason for this is that SASLAuthenticationProvider implements the 
> superUser check in the matches method, instead of having the super user 
> include a new Id("super","") as Digest does.



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