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https://issues.apache.org/jira/browse/HDDS-7520?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Janus Chow resolved HDDS-7520.
------------------------------
    Resolution: Won't Fix

> Fail to register datanode after upgrading Layout
> ------------------------------------------------
>
>                 Key: HDDS-7520
>                 URL: https://issues.apache.org/jira/browse/HDDS-7520
>             Project: Apache Ozone
>          Issue Type: Bug
>            Reporter: Janus Chow
>            Assignee: Janus Chow
>            Priority: Major
>              Labels: pull-request-available
>
> When SCM is upgraded with new LayoutVersion, old datanode won't be able to 
> register to the new SCM, thus the new SCM change to safemode and the cluster 
> becomes unavailable.



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