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https://issues.apache.org/jira/browse/MESOS-7235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adam B updated MESOS-7235:
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Labels: mesosphere storage (was: mesosphere)
> Improve Storage Support using Resource Provider and CSI
> -------------------------------------------------------
>
> Key: MESOS-7235
> URL: https://issues.apache.org/jira/browse/MESOS-7235
> Project: Mesos
> Issue Type: Epic
> Reporter: Jie Yu
> Assignee: Jie Yu
> Labels: mesosphere, storage
>
> Currently, Mesos supports both [local persistent
> volumes|https://github.com/apache/mesos/blob/master/docs/persistent-volume.md]
> as well as [external persistent
> volumes|https://github.com/apache/mesos/blob/master/docs/docker-volume.md].
> However, both of them are not ideal.
> Local persistent volumes do not support offering physical or logical block
> devices directly. Also, frameworks do not have choices to select filesystems
> for their local persistent volumes. There are also some [usability
> problem|https://issues.apache.org/jira/browse/MESOS-4209] with the local
> persistent volumes. Mesos does support [multiple local
> disks|https://github.com/apache/mesos/blob/master/docs/multiple-disk.md].
> However, it’s a big burden for operators to configure each agent properly to
> be able to leverage this feature.
> External persistent volumes support in Mesos currently bypasses the resource
> management part. In other words, using an external persistent volume does not
> go through the usual offer cycle. Mesos doesn’t track resources associated
> with the external volumes. This makes quota control, reservation, fair
> sharing almost impossible to implement. Also, the current interface Mesos
> uses to interact with volume providers is the [Docker Volume Driver interface
> (DVDI)|https://docs.docker.com/engine/extend/plugins_volume/], which is very
> specific to operations on a particular agent.
> The main problem I see currently is that we don’t have a coherent story for
> storage. Yes, we have some primitives in Mesos that can support some stateful
> services, but this is far from ideal. Some of them are just the stop gap
> solution (e.g., the external volume support). This epic tries to tell a
> coherent story for supporting storage in Mesos.
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