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https://issues.apache.org/jira/browse/HDFS-8986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14730629#comment-14730629
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Jagadesh Kiran N commented on HDFS-8986:
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Hi [~ggop] ,IMO snapshots are not treated as normal directories, it will have
admin privileges . Hence no need to mention normal user that this is snapshot
directory. Please let me know if you have any specific usecase for the same or
Please share any inputs if you have already thought of.
> Add option to -du to calculate directory space usage excluding snapshots
> ------------------------------------------------------------------------
>
> Key: HDFS-8986
> URL: https://issues.apache.org/jira/browse/HDFS-8986
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: snapshots
> Reporter: Gautam Gopalakrishnan
> Assignee: Jagadesh Kiran N
>
> When running {{hadoop fs -du}} on a snapshotted directory (or one of its
> children), the report includes space consumed by blocks that are only present
> in the snapshots. This is confusing for end users.
> {noformat}
> $ hadoop fs -du -h -s /tmp/parent /tmp/parent/*
> 799.7 M 2.3 G /tmp/parent
> 799.7 M 2.3 G /tmp/parent/sub1
> $ hdfs dfs -createSnapshot /tmp/parent snap1
> Created snapshot /tmp/parent/.snapshot/snap1
> $ hadoop fs -rm -skipTrash /tmp/parent/sub1/*
> ...
> $ hadoop fs -du -h -s /tmp/parent /tmp/parent/*
> 799.7 M 2.3 G /tmp/parent
> 799.7 M 2.3 G /tmp/parent/sub1
> $ hdfs dfs -deleteSnapshot /tmp/parent snap1
> $ hadoop fs -du -h -s /tmp/parent /tmp/parent/*
> 0 0 /tmp/parent
> 0 0 /tmp/parent/sub1
> {noformat}
> It would be helpful if we had a flag, say -X, to exclude any snapshot related
> disk usage in the output
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