Ethan Rose created HDDS-4946:
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Summary: Datanodes whose MLV matches SCM's MLV should not be added
as HEALTHY_READONLY
Key: HDDS-4946
URL: https://issues.apache.org/jira/browse/HDDS-4946
Project: Apache Ozone
Issue Type: Sub-task
Reporter: Ethan Rose
Assignee: Ethan Rose
Currently, when a datanode is registered with SCM, it is added as
HEALTHY_READONLY, regardless of its metadata layout version. On the next
heartbeat, the layout is checked against that of SCM's to determine if it
matches and can be moved to HEALTHY. This Jira will add the check for layout
match when the datanode is registered, as well as on each heartbeat, so nodes
whose MLV matches SCM's on registration will move directly from
HEALTHY_READONLY to HEALTHY without needing to wait for a heartbeat.
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