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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ZOOKEEPER-3156) ZOOKEEPER-2184 causes kerberos principal to not have resolved host name
Date Wed, 26 Sep 2018 18:35:00 GMT

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-3156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Robert Joseph Evans updated ZOOKEEPER-3156:
    Affects Version/s: 3.5.5

> ZOOKEEPER-2184 causes kerberos principal to not have resolved host name
> -----------------------------------------------------------------------
>                 Key: ZOOKEEPER-3156
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3156
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: java client
>    Affects Versions: 3.6.0, 3.4.13, 3.5.5
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>            Priority: Blocker
> Prior to ZOOKEEPER-2184 the zookeeper client would canonicalize a configured host name
before creating the SASL client which is used to create the principal name.  After ZOOKEEPER-2184
that canonicalization does not happen so the principal that the ZK client tries to use when
it is configured to talk to a CName is different between 3.4.13 and all previous versions
of ZK.
> For example
> zk1.mycluster.mycompany.com maps to real-node.mycompany.com.
> 3.4.13 will want the server to have [zookeeper/zk1.mycluster.com@KDC.MYCOMPANY.COM|mailto:zookeeper/zk1.mycluster.com@KDC.MYCOMPANY.COM]
> 3.4.12 wants the server to have [zookeeper/real-node.mycompany.com@KDC.MYCOMPANY.COM|mailto:zookeeper/real-node.mycompany.com@KDC.MYCOMPANY.COM]
> This makes 3.4.13 incompatible with many ZK setups currently in existence.  It would
be nice to have that resolution be optional because in some cases it might be nice to have
a single principal tied to the cname.

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