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https://issues.apache.org/jira/browse/MESOS-2622?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Niklas Quarfot Nielsen updated MESOS-2622:
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Story Points: 1
> Document the semantic change in decorator return values
> -------------------------------------------------------
>
> Key: MESOS-2622
> URL: https://issues.apache.org/jira/browse/MESOS-2622
> Project: Mesos
> Issue Type: Documentation
> Reporter: Niklas Quarfot Nielsen
> Assignee: Niklas Quarfot Nielsen
> Labels: mesosphere
>
> In order to enable decorator modules to _remove_ metadata (environment
> variables or labels), we changed the meaning of the return value for
> decorator hooks.
> The Result<T> return values means:
> ||State||Before||After||
> |Error|Error is propagated to the call-site|No change|
> |None|The result of the decorator is not applied|No change|
> |Some|The result of the decorator is *appended*|The result of the decorator
> *overwrites* the final labels/environment object|
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