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https://issues.apache.org/jira/browse/HDFS-10807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15444814#comment-15444814
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Akira Ajisaka commented on HDFS-10807:
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LGTM, +1.
> Doc about upgrading to a version of HDFS with snapshots may be confusing
> ------------------------------------------------------------------------
>
> Key: HDFS-10807
> URL: https://issues.apache.org/jira/browse/HDFS-10807
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: documentation
> Reporter: Mingliang Liu
> Assignee: Mingliang Liu
> Priority: Minor
> Attachments: HDFS-10807-branch-2.7.000.patch, HDFS-10807.000.patch
>
>
> {code}
> diff --git
> a/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HdfsSnapshots.md
> b/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HdfsSnapshots.md
> index 94a37cd..d856e8c 100644
> --- a/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HdfsSnapshots.md
> +++ b/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HdfsSnapshots.md
> @@ -113,7 +113,7 @@ Upgrading to a version of HDFS with snapshots
>
> The HDFS snapshot feature introduces a new reserved path name used to
> interact with snapshots: `.snapshot`. When upgrading from an
> -older version of HDFS, existing paths named `.snapshot` need
> +older version of HDFS which does not support snapshots, existing paths named
> `.snapshot` need
> to first be renamed or deleted to avoid conflicting with the reserved path.
> See the upgrade section in
> [the HDFS user guide](HdfsUserGuide.html#Upgrade_and_Rollback)
> {code}
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