Siyao Meng created HDDS-16136:
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Summary: Support in-place IPv6 migration of SCM and OM Ratis peer
addresses
Key: HDDS-16136
URL: https://issues.apache.org/jira/browse/HDDS-16136
Project: Apache Ozone
Issue Type: Task
Reporter: Siyao Meng
SCM and OM HA groups configured with IPv4 literal peer addresses cannot migrate
to IPv6-only operation by changing ozone-site.xml. Ratis loads committed peer
configuration from persistent metadata and currently treats a configuration
with the same peer IDs and different addresses as unchanged.
Add supported Ozone administrative operations for updating SCM and OM Ratis
peer addresses.
Requirements:
* Preserve the Ratis group ID, peer IDs, storage, and committed state.
* Verify that the new IPv6 addresses are reachable before submitting the
configuration.
* Submit and verify an address-only Ratis configuration change.
* Support restart after ozone-site.xml is updated on every peer.
* Validate leader election and failover after migration.
* Support rollback to the old addresses before IPv4 connectivity is removed.
* Do not require direct edits to Ratis logs or storage files.
* Add SCM and OM migration and rollback tests.
Stable DNS names remain the preferred migration path because they do not
require changing the stored peer addresses.
Blocked by RATIS-2082.
Parent epic: HDDS-15763.
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