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https://issues.apache.org/jira/browse/HDDS-7262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17614193#comment-17614193
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Duong commented on HDDS-7262:
-----------------------------
DatanodeDetails (per datanode Id) are mutable indeed. Datanode ID is generated
the 1st time a datanode service is initialized on a host and stored in the host
file system in a file called `datanode.id`. When the host DNS/IP gets
reassigned, the Datanodedetails details is updated in SCM as per
[heartbeat/re-register
signal|https://github.com/apache/ozone/blob/master/hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/node/SCMNodeManager.java#L352-L352].
> Normalize DatanodeDetails to reduce cache memory footprint.
> ------------------------------------------------------------
>
> Key: HDDS-7262
> URL: https://issues.apache.org/jira/browse/HDDS-7262
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Duong
> Priority: Major
>
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