Siddhant Sangwan created HDDS-9257:
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Summary: LegacyReplicationManager: Unhealthy replicas could block
under replication handling
Key: HDDS-9257
URL: https://issues.apache.org/jira/browse/HDDS-9257
Project: Apache Ozone
Issue Type: Sub-task
Components: SCM
Reporter: Siddhant Sangwan
Assignee: Siddhant Sangwan
The legacy replication manager currently resolves mismatched replicas (those
whose replica state do not match SCM's container state) by
1. Replicating the matching replicas until they are fully replicated.
2. Deleting the mismatched replicas.
This approach does not work when LRM is presented with the following situation:
SCM state: CLOSED
5 datanodes in the cluster
Replica states CLOSED CLOSED QUASI QUASI QUASI
LRM will not make progress because there is no datanode to add a closed replica
to that does not already have a replica.
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