Siyao Meng created HADOOP-16081:
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Summary: DistCp: Update "Update and Overwrite" doc
Key: HADOOP-16081
URL: https://issues.apache.org/jira/browse/HADOOP-16081
Project: Hadoop Common
Issue Type: Task
Components: documentation, tools/distcp
Affects Versions: 3.1.1
Reporter: Siyao Meng
Assignee: Siyao Meng
https://hadoop.apache.org/docs/r3.1.1/hadoop-distcp/DistCp.html#Update_and_Overwrite
In the current doc, it says that -update or -overwrite won't copy the directory
hierarchies. i.e. the file structure will be "flattened out" on the
destination. But this has been improved already. (Need to find the jira id that
made this change.) The dir structure WILL be copied over when -update or
-overwrite option is in use.
Now the only caveat for -update or -overwrite option is when we are specifying
multiple sources, there shouldn't be files or directories with same relative
path.
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