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https://issues.apache.org/jira/browse/HDFS-9004?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ming Ma updated HDFS-9004:
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Attachment: HDFS-9004.patch
Here is the initial patch. Given the JMX output and metasave output have
changed to include upgrade domain info, it seems we should mark change
incompatible.
> Add upgrade domain to DatanodeInfo
> ----------------------------------
>
> Key: HDFS-9004
> URL: https://issues.apache.org/jira/browse/HDFS-9004
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Ming Ma
> Attachments: HDFS-9004.patch
>
>
> As part of upgrade domain feature, we first need to add upgrade domain string
> to {{DatanodeInfo}}. It includes things like:
> * Add a new field to DatanodeInfo.
> * Modify protobuf for DatanodeInfo.
> * Update DatanodeInfo.getDatanodeReport to include upgrade domain.
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