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https://issues.apache.org/jira/browse/HDFS-4131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13560351#comment-13560351
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Jing Zhao commented on HDFS-4131:
---------------------------------
The diff printout from the new testcase TestSnapshotDiffReport looks like:
{noformat}
Diffence between snapshot s0 and snapshot s2 under directory /TestSnapshot/sub1:
M /TestSnapshot/sub1
+ /TestSnapshot/sub1/file15
- /TestSnapshot/sub1/file12
M /TestSnapshot/sub1/file11
M /TestSnapshot/sub1/file13
Diffence between snapshot s0 and snapshot s5 under directory /TestSnapshot/sub1:
M /TestSnapshot/sub1
+ /TestSnapshot/sub1/file15
+ /TestSnapshot/sub1/subsub1
- /TestSnapshot/sub1/file12
M /TestSnapshot/sub1/file10
M /TestSnapshot/sub1/file11
M /TestSnapshot/sub1/file13
Diffence between snapshot s0 and current directory under directory
/TestSnapshot/sub1:
M /TestSnapshot/sub1
+ /TestSnapshot/sub1/file15
+ /TestSnapshot/sub1/subsub1
- /TestSnapshot/sub1/file12
M /TestSnapshot/sub1/file10
M /TestSnapshot/sub1/file11
M /TestSnapshot/sub1/file13
{noformat}
where M/+/-/R denote modified/created/deleted/renamed respectively (rename is
not supported in the diff computation currently).
> Add a tool to print the diff between two snapshots and diff of a snapshot
> from the current tree
> -----------------------------------------------------------------------------------------------
>
> Key: HDFS-4131
> URL: https://issues.apache.org/jira/browse/HDFS-4131
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode, namenode
> Affects Versions: Snapshot (HDFS-2802)
> Reporter: Suresh Srinivas
> Assignee: Jing Zhao
> Attachments: HDFS-4131.001.patch, HDFS-4131.002.patch,
> HDFS-4131.003.patch
>
>
> This jira tracks tool to print diff between an two snapshots at a given path.
> The tool will also print the difference between the current directory and the
> given snapshot.
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