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https://issues.apache.org/jira/browse/MESOS-9254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16887229#comment-16887229
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Chun-Hung Hsiao commented on MESOS-9254:
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I have a WIP branch here which just changed the SLRP config proto a bit
[https://github.com/chhsia0/mesos/tree/mesos-9254].
> Make SLRP be able to update its volumes and storage pools.
> ----------------------------------------------------------
>
> Key: MESOS-9254
> URL: https://issues.apache.org/jira/browse/MESOS-9254
> Project: Mesos
> Issue Type: Improvement
> Reporter: Chun-Hung Hsiao
> Priority: Critical
> Labels: mesosphere, mesosphere-dss-post-ga, storage
>
> We should consider making SLRP update its resources periodically, or adding
> an endpoint to trigger that, for the following reasons:
> 1. Mesos currently assumes all profiles have disjoint storage pools. This is
> because Mesos models each resource independently. However, in practice an
> operator can set up, say two profiles, one for linear volumes and one for
> raid volumes, and an "LVM" resource provider that can provision both linear
> and raid volumes. The correlation between the storage pools of the linear and
> raid profiles would reduce one's pool capacity when a volume of the other
> type is provisioned. To reflect the actual sizes of correlated storage pools,
> we need a way to make SLRP update its resources.
> 2. The SLRP now only queries the CSI plugin to report a list of volumes
> during startup, so if a new device is added, the operator will have to
> restart the agent to trigger another SLRP startup, which is inconvenient.
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