[HBASE-14425] In Secure Zookeeper cluster superuser will not have sufficient permission if multiple values are configured in "hbase.superuser"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0, 1.3.0, 0.98.17, 2.0.0
• Component/s: security, Zookeeper
• Hadoop Flags: Reviewed
• Assignee: Pankaj Kumar
• Reporter: Pankaj Kumar
• Created: 14/Sep/15 13:01
• Updated: 01/Jul/22 21:27
• Resolved: 28/Oct/15 00:06

Description

During master intialization we are setting ACLs for the znodes.

In ZKUtil.createACL(ZooKeeperWatcher zkw, String node, boolean isSecureZooKeeper),

      String superUser = zkw.getConfiguration().get("hbase.superuser");
      ArrayList<ACL> acls = new ArrayList<ACL>();
      // add permission to hbase supper user
      if (superUser != null) {
        acls.add(new ACL(Perms.ALL, new Id("auth", superUser)));
      }

Here we are directly setting "hbase.superuser" value to Znode which will cause an issue when multiple values are configured. In "hbase.superuser" multiple superusers and supergroups can be configured separated by comma. We need to iterate them and set ACL.