[jira] [Commented] (RANGER-1138) Investigate using a scheduler to download policies to the plugins

["Nigel Jones (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/RANGER-1138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15464997#comment-15464997 ] 

Nigel Jones commented on RANGER-1138:
-------------------------------------

In addition to allowing more flexibility as to the timing of policy download, it could also be worth considering
 a) An event based mechanism to push policies to plugins for example via kafka
 b) the plugin persisting the current policy locally, with the option of using this at service startup if the new policy cannot be downloaded [adds resilience]

> Investigate using a scheduler to download policies to the plugins
> -----------------------------------------------------------------
>
>                 Key: RANGER-1138
>                 URL: https://issues.apache.org/jira/browse/RANGER-1138
>             Project: Ranger
>          Issue Type: Improvement
>            Reporter: Colm O hEigeartaigh
>            Assignee: Colm O hEigeartaigh
>
> This task is to investigate using a scheduler (i.e. Quartz) to download policies to the plugins. Currently Ranger uses the PolicyRefresher class, which is extremely basic. An implementation based on Quartz would allow to download polices daily, weekly, etc etc according to a schedule. 



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