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https://issues.apache.org/jira/browse/SLIDER-547?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran resolved SLIDER-547.
-----------------------------------
    Resolution: Fixed

> AM to fail fast if IPC authorization is enabled, but the ACL is empty/null
> --------------------------------------------------------------------------
>
>                 Key: SLIDER-547
>                 URL: https://issues.apache.org/jira/browse/SLIDER-547
>             Project: Slider
>          Issue Type: Improvement
>          Components: appmaster
>    Affects Versions: Slider 0.60
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>   Original Estimate: 0.25h
>  Remaining Estimate: 0.25h
>
> On a cluster with {{hadoop.authorization.enabled}} = true in the site.xml, 
> slider IPC will check callers against the ACL list for its IPC. But if that 
> property is empty, IPC will never be authed.
> fix: fail fast if the authorization is enabled, but 
> {{security.slider.protocol.acl}} is undefined/empty



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