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https://issues.apache.org/jira/browse/MESOS-4144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15055276#comment-15055276
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Yong Qiao Wang commented on MESOS-4144:
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Currently, Implicit Roles Epic is used to change the behavior of the master
when the `--roles` flag is NOT specified. Previously, this would allow only the
`*` role to be used if '--roles' is not specified. Now, omitting `--roles`
means that any role can be used. This is called "implicit roles". So Implicit
Roles does not be used to dynamic update --roles.
Actually, this JIRA is duplicated by MESOS-3177(Dynamic Roles/Weights). But
currently, we are using Implicit Roles to support dynamic roles implicitly, and
'--roles' flag will be removed in the future.
> Allow for dynamic updating of --roles
> -------------------------------------
>
> Key: MESOS-4144
> URL: https://issues.apache.org/jira/browse/MESOS-4144
> Project: Mesos
> Issue Type: Bug
> Components: master
> Affects Versions: 0.25.0
> Reporter: John Omernik
>
> Roles must be specified at master run time. If the environment changes, and
> more roles are needed, it requires a restart of masters. Instead, there
> should be a way via API to add roles or remove roles to properly authorized
> principles.
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