[jira] [Created] (MESOS-7047) Update agent for hierarchical roles

["Neil Conway (JIRA)" <ji...@apache.org>]

Neil Conway created MESOS-7047:
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             Summary: Update agent for hierarchical roles
                 Key: MESOS-7047
                 URL: https://issues.apache.org/jira/browse/MESOS-7047
             Project: Mesos
          Issue Type: Bug
          Components: agent
            Reporter: Neil Conway


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 or otherwise encode 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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