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https://issues.apache.org/jira/browse/ZOOKEEPER-1422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13936437#comment-13936437
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Patrick Hunt commented on ZOOKEEPER-1422:
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Thanks [~stevenwillis]. I suspect more widely available in the hadoop
ecosystem, however in our case we don't use the hadoop, xml based config
parsers. We have our own properties based on. Likely we'd have to replicate
that functionality ourselves (I'm no expert on this subject though...)
> Support _HOST substitution in JAAS configuration
> -------------------------------------------------
>
> Key: ZOOKEEPER-1422
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1422
> Project: ZooKeeper
> Issue Type: Improvement
> Affects Versions: 3.4.0
> Reporter: Thomas Weise
>
> At the moment a JAAS configuration file needs to be created with the Kerberos
> principal specified as user/host. It would be much easier for deployment
> automation if the host portion could be resolved at startup time, as
> supported in Hadoop (something like user/_HOST instead of user/hostname). A
> configuration alternative to global JAAS conf would be even better (via
> direct properties in zoo.cfg?).
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