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https://issues.apache.org/jira/browse/HDDS-16190?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ethan Rose updated HDDS-16190:
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Labels: (was: pull-request-available)
Status: Patch Available (was: Open)
> Do not use unified version framework in OM until ZDU is finalized
> -----------------------------------------------------------------
>
> Key: HDDS-16190
> URL: https://issues.apache.org/jira/browse/HDDS-16190
> Project: Apache Ozone
> Issue Type: Improvement
> Reporter: Ethan Rose
> Assignee: Ethan Rose
> Priority: Major
>
> ZDU is the first version that supports the unified versioning framework,
> where network and disk compatibility are tracked with the same version.
> Therefore, we cannot use this framework before ZDU is finalized. The existing
> VersionManager already handles this for disk compatibility. It will read from
> the old layout feature enums until ZDU is finalized. We need similar handling
> for the component version sent over the network to clients. We cannot send
> the unified version framework's apparent version to clients until ZDU is
> finalized, otherwise we may be sending them a layout feature when they are
> expecting a component version. When ZDU is pre-finalized, we must send the
> last component version before ZDU to clients. Finalizing ZDU moves both
> version systems ahead to the unified one that starts with ZDU, where one
> apparent version can be shared over both disk and network.
>
> This has been handled for Datanodes in
> [HDDS-16154|https://github.com/apache/ozone/pull/11006]. This Jira will
> handle it for OM.
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