Ethan Rose created HDDS-16190:
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Summary: 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
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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