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https://issues.apache.org/jira/browse/HDFS-9063?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Zhao updated HDFS-9063:
----------------------------
Release Note:
The jira made the following changes:
1. Fix a bug to exclude newly-created files from quota usage calculation for a
snapshot path.
2. Number of snapshots is no longer counted as directory number in
getContentSummary result.
> Correctly handle snapshot path for getContentSummary
> ----------------------------------------------------
>
> Key: HDFS-9063
> URL: https://issues.apache.org/jira/browse/HDFS-9063
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Labels: incompatible
> Fix For: 2.8.0, 3.0.0-alpha1
>
> Attachments: HDFS-9063.000.patch, test.001.patch
>
>
> The current getContentSummary implementation does not take into account the
> snapshot path, thus if we have the following ops:
> 1. create dirs /foo/bar
> 2. take snapshot s1 on /foo
> 3. create a 1 byte file /foo/bar/baz
> then "du /foo" and "du /foo/.snapshot/s1" can report same results for "bar",
> which is incorrect since the 1 byte file is not included in snapshot s1.
> In the meanwhile, the snapshot diff list size is no longer included in the
> computation result. This can bring minor incompatibility but is consistent
> with the change in HDFS-7728.
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