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https://issues.apache.org/jira/browse/HDFS-6409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13999154#comment-13999154
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Chris Nauroth commented on HDFS-6409:
-------------------------------------
See below. "...if a rolling upgraded is already started..." should be changed
to "...if a rolling upgrade is already started...".
{quote}
Please restart NameNode with the "-rollingUpgrade started" option if a rolling
upgraded is already started; or restart NameNode with the "-upgrade" option to
start a new upgrade.
{quote}
> Fix typo in log message about NameNode layout version upgrade.
> --------------------------------------------------------------
>
> Key: HDFS-6409
> URL: https://issues.apache.org/jira/browse/HDFS-6409
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.0.0, 2.4.0
> Reporter: Chris Nauroth
> Priority: Trivial
> Labels: newbie
>
> During startup, the NameNode logs a message if the existing metadata is using
> an old layout version. This message contains a minor typo.
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