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https://issues.apache.org/jira/browse/HBASE-14425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14791839#comment-14791839
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Rakesh R commented on HBASE-14425:
----------------------------------
ZooKeeper's authentication framework is pluggable. It provides set of built in
schemes. ZooKeeper's built in ACL schemes are set on a per-user basis rather
than based on user group. If there are 'n' users in the group, we need to
manually add each authenticated user one by one. Please refer
[ZooKeeperAccessControl
|http://zookeeper.apache.org/doc/r3.4.6/zookeeperProgrammers.html#sc_ZooKeeperAccessControl]
section to understand more.
For example,
ZK auth scheme allows us to have multiple authorized users to access a single
znode say "/path" with the different username and password combination. Say we
have 3 users:
{code}
username : password
user_123 : pwd_123
user_456 : pwd_456
user_789 : pwd_789
{code}
It needs to explicitly set all these users to the "/path" as list of ACL
entries.
Does this answer your question?
> In Secure Zookeeper cluster superuser will not have sufficient permission if
> multiple values are configured in "hbase.superuser"
> --------------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-14425
> URL: https://issues.apache.org/jira/browse/HBASE-14425
> Project: HBase
> Issue Type: Bug
> Reporter: Pankaj Kumar
> Assignee: Pankaj Kumar
> Fix For: 2.0.0
>
> Attachments: HBASE-14425.patch
>
>
> During master intialization we are setting ACLs for the znodes.
> In ZKUtil.createACL(ZooKeeperWatcher zkw, String node, boolean
> isSecureZooKeeper),
> {code}
> 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)));
> }
> {code}
> 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.
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