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From "Chun-Hung Hsiao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MESOS-9166) Ignore pre-existing CSI volumes known to SLRP.
Date Fri, 17 Aug 2018 22:48:00 GMT

    [ https://issues.apache.org/jira/browse/MESOS-9166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16584469#comment-16584469
] 

Chun-Hung Hsiao commented on MESOS-9166:
----------------------------------------

Reconsider this for now. We might want to introduce a new operation that convert a pre-existing
RAW disk without profile with a MOUNT/BLOCK disk with profile instead.

> Ignore pre-existing CSI volumes known to SLRP.
> ----------------------------------------------
>
>                 Key: MESOS-9166
>                 URL: https://issues.apache.org/jira/browse/MESOS-9166
>             Project: Mesos
>          Issue Type: Improvement
>          Components: storage
>            Reporter: Chun-Hung Hsiao
>            Assignee: Chun-Hung Hsiao
>            Priority: Major
>              Labels: mesosphere, storage
>
> A pre-existing CSI volume can be known to an SLRP if there is a CSI volume state checkpoint
for the volume, but the corresponding resource checkpoint is missing. This typically happen
when the agent ID changes which would make the SLRP lose all its resource provider state.
In such a case, we should not treat these volumes as unmanaged pre-existing volumes (i.e.,
disk resources without profiles). For now we should not report them, and consider designing
a way to recover these volumes.



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