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https://issues.apache.org/jira/browse/YARN-8902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16665192#comment-16665192
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Weiwei Yang commented on YARN-8902:
-----------------------------------
Hi [~sunilg]
Thanks for the review.
# I agree we can move all common classes to hadoop-yarn-server-common, will do
that in next patch.
# The adaptor is a layer to transform YARN internal objects, e.g
Volume/VolumeCapability etc, to CSI protocol ones. I don't expect any
customized adaptor for this. However on NM side, we may have customized, e.g
VolumeMounter, in case there are different implementation logic to mount
volumes (that may relate to what capability storage system supports).
# For the states, it is a complete set of states CSI current defined. For 1st
phase, we only need a few of them. Note, on NM side, we also need a set of
states. Will add that later.
Thanks!
> Add volume manager that manages CSI volume lifecycle
> ----------------------------------------------------
>
> Key: YARN-8902
> URL: https://issues.apache.org/jira/browse/YARN-8902
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Priority: Major
> Attachments: YARN-8902.001.patch, YARN-8902.002.patch,
> YARN-8902.003.patch, YARN-8902.004.patch
>
>
> The CSI volume manager is a service running in RM process, that manages all
> CSI volumes' lifecycle. The details about volume's lifecycle states can be
> found in [CSI
> spec|https://github.com/container-storage-interface/spec/blob/master/spec.md].
>
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