[jira] [Commented] (MESOS-7235) Improve Storage Support using Resource Provider and CSI

2018-01-04 Thread Jie Yu (JIRA)

[ 
https://issues.apache.org/jira/browse/MESOS-7235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16311702#comment-16311702
 ] 

Jie Yu commented on MESOS-7235:
---

Post MVP work is tracked here: MESOS-8374 Resource Provider and CSI Tech Debt


> 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
> Fix For: 1.5.0
>
>
> 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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[jira] [Commented] (MESOS-7235) Improve Storage Support using Resource Provider and CSI

2018-01-04 Thread Vinod Kone (JIRA)

[ 
https://issues.apache.org/jira/browse/MESOS-7235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16311694#comment-16311694
 ] 

Vinod Kone commented on MESOS-7235:
---

This epic has 2 unresolved tickets? Can you move them to a new epic?

> 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
> Fix For: 1.5.0
>
>
> 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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