Mohammadhani Fouladgar created HDDS-16301:
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Summary: Reject/guard 'transfer leadership' to an SCM that is not
ready to serve (no DN heartbeats / empty NodeManager view)
Key: HDDS-16301
URL: https://issues.apache.org/jira/browse/HDDS-16301
Project: Apache Ozone
Issue Type: New Feature
Reporter: Mohammadhani Fouladgar
An admin or orchestration step can transfer SCM leadership to a freshly-added
SCM that is a committed Ratis peer but not yet operationally ready (in safe
mode, no DataNode heartbeats, empty NodeManager view). Nothing rejects such a
transfer today, so the new leader cannot allocate blocks or manage pipelines
and client/DN operations stall until it is ready or leadership moves again.
Scope is the explicit leadership-transfer request only; natural Ratis elections
are not gated here
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