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https://issues.apache.org/jira/browse/HDDS-9257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siddhant Sangwan updated HDDS-9257:
-----------------------------------
Fix Version/s: 1.4.0
> 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
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.4.0
>
>
> 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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