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https://issues.apache.org/jira/browse/HDFS-12740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16261624#comment-16261624
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Anu Engineer commented on HDFS-12740:
-------------------------------------
Sorry to comment this late, can some please tell me what happens if I have an
SCM, I run --init command against it, and then that SCM restarts? From the
patch, I see we are generating a UUID but I don't see any persistence. Is that
part of some other JIRA?
> SCM should support a RPC to share the cluster Id with KSM and DataNodes
> -----------------------------------------------------------------------
>
> Key: HDFS-12740
> URL: https://issues.apache.org/jira/browse/HDFS-12740
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: HDFS-7240
> Reporter: Shashikant Banerjee
> Assignee: Shashikant Banerjee
> Fix For: HDFS-7240
>
> Attachments: HDFS-12740-HDFS-7240.001.patch,
> HDFS-12740-HDFS-7240.002.patch, HDFS-12740-HDFS-7240.003.patch,
> HDFS-12740-HDFS-7240.004.patch, HDFS-12740-HDFS-7240.005.patch
>
>
> When the ozone cluster is first Created, SCM --init command will generate
> cluster Id as well as SCM Id and persist it locally. The same cluster Id and
> the SCM id will be shared with KSM during the KSM initialization and
> Datanodes during datanode registration.
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