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https://issues.apache.org/jira/browse/MESOS-7047?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Park updated MESOS-7047:
--------------------------------
    Description: 
Agents use the role name in the file system path for persistent volumes: a 
persistent volume is written to 
{{work_dir/volumes/roles/<role-name>/<persistence-id>}}. When using 
hierarchical roles, {{role-name}} might contain slashes. It seems like there 
are three options here:

# When converting the role name into the file system path, escape any slashes 
that appear.
# Hash the role name before using it in the file system path.
# Create a directory hierarchy that corresponds to the nesting in the role 
name. So a volume for role {{a/b/c/d}} would be stored in 
{{roles/a/b/c/d/<persistence-id>}}.

If we adopt #3, we'd probably also want to cleanup the filesystem when a volume 
is removed.

  was:
Agents use the role name in the file system path for persistent volumes: a 
persistent volume is written to 
{{work_dir/meta/volumes/roles/<role-name>/<persistence-id>}}. When using 
hierarchical roles, {{role-name}} might contain slashes. It seems like there 
are three options here:

# When converting the role name into the file system path, escape any slashes 
that appear.
# Hash the role name before using it in the file system path.
# Create a directory hierarchy that corresponds to the nesting in the role 
name. So a volume for role {{a/b/c/d}} would be stored in 
{{roles/a/b/c/d/<persistence-id>}}.

If we adopt #3, we'd probably also want to cleanup the filesystem when a volume 
is removed.


> Update agent for hierarchical roles.
> ------------------------------------
>
>                 Key: MESOS-7047
>                 URL: https://issues.apache.org/jira/browse/MESOS-7047
>             Project: Mesos
>          Issue Type: Task
>          Components: agent
>            Reporter: Neil Conway
>              Labels: mesosphere
>
> Agents use the role name in the file system path for persistent volumes: a 
> persistent volume is written to 
> {{work_dir/volumes/roles/<role-name>/<persistence-id>}}. When using 
> hierarchical roles, {{role-name}} might contain slashes. It seems like there 
> are three options here:
> # When converting the role name into the file system path, escape any slashes 
> that appear.
> # Hash the role name before using it in the file system path.
> # Create a directory hierarchy that corresponds to the nesting in the role 
> name. So a volume for role {{a/b/c/d}} would be stored in 
> {{roles/a/b/c/d/<persistence-id>}}.
> If we adopt #3, we'd probably also want to cleanup the filesystem when a 
> volume is removed.



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