[jira] [Updated] (HDDS-3829) Introduce Layout Feature interface in Ozone

["Aravindan Vijayan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-3829?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aravindan Vijayan updated HDDS-3829:
------------------------------------
    Target Version/s: 1.2.0

> Introduce Layout Feature interface in Ozone
> -------------------------------------------
>
>                 Key: HDDS-3829
>                 URL: https://issues.apache.org/jira/browse/HDDS-3829
>             Project: Hadoop Distributed Data Store
>          Issue Type: Sub-task
>          Components: Ozone Manager
>            Reporter: Aravindan Vijayan
>            Assignee: Aravindan Vijayan
>            Priority: Major
>              Labels: pull-request-available
>
> * Implement the concept of a 'Layout Feature' in Ozone (with sample usage in Ozone Manager), which defines a specific change in on-disk layout in Ozone.
> * Every feature is associated with a layout version, and an API corresponding to the feature cannot be invoked (throws NOT_SUPPORTED_OPERATION) before finalization.
> * Created an annotation based 'aspect' for "guarding" new APIs that are introduced by Layout Features. Check out TestOMLayoutFeatureAspect#testCheckLayoutFeature.
> * Added sample features and tests for ease of review (To be removed before commit).
> * Created an abstract VersionManager and an inherited OM Version manager to initialize features, check if feature is allowed, check need to finalize, do finalization.



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