[jira] [Comment Edited] (NIFI-5717) FTPTransfer can't connect to different users in a same host

["Lars Kampen (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-5717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17603893#comment-17603893 ] 

Lars Kampen edited comment on NIFI-5717 at 9/14/22 6:06 AM:
------------------------------------------------------------

Hi David,

the problem is even worse - we are accessing different 'servers' listening on different _ports_ on the same host. Daniel's analysis is definitely correct - as long as the hostname is identical, the connection will be reused.

If time allows, I will try to
 * set up a development environment for nifi,
 * ideally write a test,
 * fix the bug
 * and provide a patch to GitHub.

Let's see how far I will get. I already inspected the code and found the problem, but have not yet looked up how the tests are organized or how to set up a development environment for nifi at all.


was (Author: JIRAUSER295670):
Hi David,

the problem is even worse - we are accessing different 'servers' listening on different _ports_ on the same host. Your analysis is definitely correct - as long as the hostname is identical, the connection will be reused.

If time allows, I will try to
 * set up a development environment for nifi,
 * ideally write a test,
 * fix the bug
 * and provide a patch to GitHub.

Let's see how far I will get. I already inspected the code and found the problem, but have not yet looked up how the tests are organized or how to set up a development environment for nifi at all.

> FTPTransfer can't connect to different users in a same host
> -----------------------------------------------------------
>
>                 Key: NIFI-5717
>                 URL: https://issues.apache.org/jira/browse/NIFI-5717
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>    Affects Versions: 1.7.1
>            Reporter: Daniel do Vale
>            Priority: Major
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> 1) I have one FTP server host which different users can access.
> 2) I'm trying to connect with 2 different users in the same host. These users have different root folders configurated inside my host.
> 3) The first user can connect to FTP without any problems.
> 4) The second user can't connect to FTP properly, because nifi FTPTransfer class have one verification that sees if the host is the same that previous access, it don't reconnect (just reuse the current connection). For this reason, the folders path dont match when i try to get some files.
>  
> The problem occurs inside "getClient" method in FTPTransfer util class.



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