Siddhant Sangwan created HDDS-9019:
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Summary: ECUnderReplicationHandler rejects a potential target if
it doesn't satisfy placement policy
Key: HDDS-9019
URL: https://issues.apache.org/jira/browse/HDDS-9019
Project: Apache Ozone
Issue Type: Bug
Components: ECOfflineRecovery, SCM
Reporter: Siddhant Sangwan
Assignee: Siddhant Sangwan
{{ECUnderReplicationHandler}} checks if current replica datanodes + potential
replica datanodes satisfies placement policy. If they don't, the targets are
rejected and recovery fails. While this check makes sense, it can block
container recovery. Since under replication is more serious than mis
replication, we should let a new replica be reconstructed even if it doesn't
satisfy placement policy.
Also, we should rely on the policy to suggest a node that satisfies the policy
- if there is none, the policy will fallback and try to suggest a node on a
rack where the container is already present.
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