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From "Michael Han (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-2014) Only admin should be allowed to reconfig a cluster
Date Tue, 08 Nov 2016 00:44:58 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-2014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15645990#comment-15645990
] 

Michael Han commented on ZOOKEEPER-2014:
----------------------------------------

[~breed] We were previously waiting for ZOOKEEPER-2624 to land and for more review comments.
Now ZOOKEEPER-2624 landed and more review comments were collected and addressed, I think this
one is ready to land :-). cc [~fpj].

> 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-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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