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https://issues.apache.org/jira/browse/SLIDER-849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14487277#comment-14487277
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Steve Loughran commented on SLIDER-849:
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add:
# handle reloading a history in which the map was not persisted (i.e a slider
0.60-0.70) version
> role history reload to act on names:ID map persisted in history JSON
> --------------------------------------------------------------------
>
> Key: SLIDER-849
> URL: https://issues.apache.org/jira/browse/SLIDER-849
> Project: Slider
> Issue Type: Sub-task
> Components: appmaster
> Affects Versions: Slider 0.80
> Reporter: Steve Loughran
> Fix For: Slider 1.0.0
>
>
> with SLIDER-600, the role history .json file now saves the map of name:id in
> the document; it is reloaded when the history is read in again.
> but: it is not used.
> Proposed: comparing the history with the current values and resolving
> differences
> This is harder than it is sounds, as it needs a policy to address changes in
> role mapping IDs, including what if a new name is added to an old id; an old
> ID moves to a new one, and two are swapped.
> then of course, there is the tests...
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