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https://issues.apache.org/jira/browse/HADOOP-19130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ayush Saxena resolved HADOOP-19130.
-----------------------------------
Fix Version/s: 3.5.0
Hadoop Flags: Reviewed
Resolution: Fixed
> FTPFileSystem rename with full qualified path broken
> ----------------------------------------------------
>
> Key: HADOOP-19130
> URL: https://issues.apache.org/jira/browse/HADOOP-19130
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 0.20.2, 3.3.3, 3.3.4, 3.3.6
> Reporter: shawn
> Assignee: shawn
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.5.0
>
> Attachments: image-2024-03-27-09-59-12-381.png,
> image-2024-03-28-09-58-19-721.png
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> When use fs shell to put/rename file in ftp server with full qualified
> path , it always get "Input/output error"(eg.
> [ftp://user:password@localhost/pathxxx]), the reason is that
> changeWorkingDirectory command underneath is being passed a string with
> [file://|file:///] uri prefix which will not be understand by ftp server
> !image-2024-03-27-09-59-12-381.png|width=948,height=156!
>
> in our case, after
> client.changeWorkingDirectory("ftp://mytest:myt...@10.5.xx.xx/files";)
> executed, the workingDirectory of ftp server is still "/", which is
> incorrect(not understand by ftp server)
> !image-2024-03-28-09-58-19-721.png|width=745,height=431!
> the solution should be pass
> absoluteSrc.getParent().toUri().getPath().toString to avoid
> [file://|file:///] uri prefix, like this:
> {code:java}
> --- a/FTPFileSystem.java
> +++ b/FTPFileSystem.java
> @@ -549,15 +549,15 @@ public class FTPFileSystem extends FileSystem {
> throw new IOException("Destination path " + dst
> + " already exist, cannot rename!");
> }
> - String parentSrc = absoluteSrc.getParent().toUri().toString();
> - String parentDst = absoluteDst.getParent().toUri().toString();
> + URI parentSrc = absoluteSrc.getParent().toUri();
> + URI parentDst = absoluteDst.getParent().toUri();
> String from = src.getName();
> String to = dst.getName();
> - if (!parentSrc.equals(parentDst)) {
> + if (!parentSrc.toString().equals(parentDst.toString())) {
> throw new IOException("Cannot rename parent(source): " + parentSrc
> + ", parent(destination): " + parentDst);
> }
> - client.changeWorkingDirectory(parentSrc);
> + client.changeWorkingDirectory(parentSrc.getPath().toString());
> boolean renamed = client.rename(from, to);
> return renamed;
> }{code}
> already related issue as follows
> https://issues.apache.org/jira/browse/HADOOP-8653
> I create this issue and add related unit test.
>
>
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