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https://issues.apache.org/jira/browse/HDFS-7002?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira AJISAKA resolved HDFS-7002.
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Resolution: Invalid
Rolling upgrades are available for the upgrades from 2.4+ only. Rolling upgrade
from ~2.3 to 2.4+ is not supported.
> Failed to rolling upgrade hdfs from 2.2.0 to 2.4.1
> --------------------------------------------------
>
> Key: HDFS-7002
> URL: https://issues.apache.org/jira/browse/HDFS-7002
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: journal-node, namenode, qjm
> Affects Versions: 2.2.0, 2.4.1
> Reporter: sam liu
> Priority: Blocker
>
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