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https://issues.apache.org/jira/browse/ZOOKEEPER-2014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15565322#comment-15565322
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Flavio Junqueira commented on ZOOKEEPER-2014:
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Thanks for fixing it. I see the point of stability, but I don't think it is
much of a concern in this case. You're just building on top of the ZooKeeper,
you won't be re-wiring the existing ZooKeeper client code, I think. If I'm
right, then it is better to have a single connection to the service rather than
two, one for the ZooKeeper object and another for ZooKeeperAdmin. In any case,
it might be worth giving it a shot to get a sense of whether it'd cause trouble.
> Only admin should be allowed to reconfig a cluster
> --------------------------------------------------
>
> Key: ZOOKEEPER-2014
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2014
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Affects Versions: 3.5.0
> Reporter: Raul Gutierrez Segales
> Assignee: Michael Han
> Priority: Blocker
> Fix For: 3.5.3
>
> Attachments: ZOOKEEPER-2014.patch, ZOOKEEPER-2014.patch,
> ZOOKEEPER-2014.patch, ZOOKEEPER-2014.patch, ZOOKEEPER-2014.patch,
> ZOOKEEPER-2014.patch, ZOOKEEPER-2014.patch, ZOOKEEPER-2014.patch,
> ZOOKEEPER-2014.patch
>
>
> ZOOKEEPER-107 introduces reconfiguration support via the reconfig() call. We
> should, at the very least, ensure that only the Admin can reconfigure a
> cluster. Perhaps restricting access to /zookeeper/config as well, though this
> is debatable. Surely one could ensure Admin only access via an ACL, but that
> would leave everyone who doesn't use ACLs unprotected. We could also force a
> default ACL to make it a bit more consistent (maybe).
> Finally, making reconfig() only available to Admins means they have to run
> with zookeeper.DigestAuthenticationProvider.superDigest (which I am not sure
> if everyone does, or how would it work with other authentication providers).
> Review board https://reviews.apache.org/r/51546/
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