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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-3375) Move user and permission data into a table
Date Mon, 01 Dec 2014 23:04:12 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-3375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14230648#comment-14230648
] 

Josh Elser commented on ACCUMULO-3375:
--------------------------------------

Full disclosure, I haven't actually looked into the level of effort to make such a change.
It came up in discussion once when I was talking about how Accumulo manages its user database
and that ZK doesn't come across architecturally as good choice. Wanted to get it written down
before I forgot again.

> Move user and permission data into a table
> ------------------------------------------
>
>                 Key: ACCUMULO-3375
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3375
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Josh Elser
>
> We currently use ZooKeeper to store the user database (name and password) in addition
to the authorizations and permissions for each user.
> ZooKeeper is designed for distributed configuration and synchronization/coordination
tasks; it is not designed to be a persistent store. In this case it would be better to use
a table to manage this information.
> I think this might reduce some complexity in managing that database, notably better recovery
if ZK dies for some reason. Having a table might trivialize import/export of the user database
(ACCUMULO-1722 is what made me think of this).



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