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Kai Sasaki commented on HDFS-7302: ---------------------------------- [~szetszwo] I may have some misunderstanding. I found there were some dependencies on FSImage or FSNamesystem and so on. Can I remove all dependencies? This downgrade option is not also necessary to these internal classes? > namenode -rollingUpgrade downgrade may finalize a rolling upgrade > ----------------------------------------------------------------- > > Key: HDFS-7302 > URL: https://issues.apache.org/jira/browse/HDFS-7302 > Project: Hadoop HDFS > Issue Type: Bug > Components: namenode > Reporter: Tsz Wo Nicholas Sze > Assignee: Kai Sasaki > Labels: document, hdfs > Attachments: HADOOP-7302.1.patch > > > The namenode startup option "-rollingUpgrade downgrade" is originally > designed for downgrading cluster. However, running "namenode -rollingUpgrade > downgrade" with the new software could result in finalizing the ongoing > rolling upgrade. -- This message was sent by Atlassian JIRA (v6.3.4#6332)