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https://issues.apache.org/jira/browse/HDFS-5977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Haohui Mai resolved HDFS-5977.
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Resolution: Later
> FSImageFormatPBINode does not respect "-renameReserved" upgrade flag
> --------------------------------------------------------------------
>
> Key: HDFS-5977
> URL: https://issues.apache.org/jira/browse/HDFS-5977
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.4.0
> Reporter: Andrew Wang
> Labels: protobuf
>
> HDFS-5709 added a new upgrade flag "-renameReserved" which can be used to
> automatically rename reserved paths like "/.reserved" encountered during
> upgrade. The new protobuf loading code does not have a similar facility, so
> future reserved paths cannot be automatically renamed via "-renameReserved".
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