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https://issues.apache.org/jira/browse/HDFS-8257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14533863#comment-14533863
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Vinayakumar B commented on HDFS-8257:
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+1. Patch LGTM.
Committing soon.
> Namenode rollingUpgrade option is incorrect
> -------------------------------------------
>
> Key: HDFS-8257
> URL: https://issues.apache.org/jira/browse/HDFS-8257
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: documentation
> Reporter: J.Andreina
> Assignee: J.Andreina
> Labels: BB2015-05-RFC
> Attachments: HDFS-8257.1.patch
>
>
> "./hdfs namenode -rollingUpgrade" supports <rollback|started> operations ,
> but it is incorrect in document
> {noformat}
> hdfs namenode [-backup] |
> [-checkpoint] |
> [-format [-clusterid cid ] [-force] [-nonInteractive] ] |
> [-upgrade [-clusterid cid] [-renameReserved<k-v pairs>] ] |
> [-upgradeOnly [-clusterid cid] [-renameReserved<k-v pairs>] ] |
> [-rollback] |
> [-rollingUpgrade <downgrade |rollback> ] |
> {noformat}
> {noformat}
> -rollingUpgrade <downgrade|rollback|started> See Rolling Upgrade document
> for the detail.
> {noformat}
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