Ethan Rose created HDDS-5226:
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Summary: Do not fail SCM HA pre-finalize validation if SCM HA was
already being used
Key: HDDS-5226
URL: https://issues.apache.org/jira/browse/HDDS-5226
Project: Apache Ozone
Issue Type: Sub-task
Reporter: Ethan Rose
Assignee: Ethan Rose
SCM HA has been merged in to the master branch before the upgrade framework.
With the current implementation of SCM HA pre-finalize validation (which
prevents the new feature from being used until the cluster is finalized) users
who follow the Apache releases and those who incrementally pull from master
will have different experiences when they get the upgrade framework:
For users following official Ozone releases, the upgrade framework and SCM HA
will land in the same release. SCM HA should not be allowed in pre-finalize so
that these users can downgrade using the upgrade framework. This is currently
how the validation action works.
For users who pull from master and are already using SCM HA, the current
pre-finalize validation will fail to start the SCM until they turn off SCM HA.
The cluster must be finalized, and then SCM HA can be re-enabled. This may be
surprising and inconvenient.
To support both use cases, the SCM HA pre-finalize validation action should not
fail if SCM HA was already being used before the upgrade.
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