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https://issues.apache.org/jira/browse/CAMEL-12166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16332298#comment-16332298
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Claus Ibsen commented on CAMEL-12166:
-------------------------------------
It end up calling some rollback code, that performs the disconnect. Its a bit
more complicated as ftp extends file component. But as said you use an old
version of Camel we dont support anymore.
> FTPConsumer - no disconnect if polling files fails
> --------------------------------------------------
>
> Key: CAMEL-12166
> URL: https://issues.apache.org/jira/browse/CAMEL-12166
> Project: Camel
> Issue Type: Bug
> Components: camel-ftp
> Affects Versions: 2.16.2
> Environment: We are using Camel 2.16.2 as part of ServiceMix 6.1.1
> Reporter: Oliver Limberg
> Assignee: Claus Ibsen
> Priority: Major
> Fix For: 2.21.0
>
>
> We encountered an issue downoading files from various different ftp servers.
> If listing the files to consume fails for whatever reason, the FTP client
> does not disconnect from the server, even if disconnect=true is specified in
> the endpoint URL.
> This leads to the problem, that upon the next poll, the connection ist still
> open and the component starts to navigate stepwise to the target folder which
> will fail, because we are not in the home folder of the FTP user anymore.
> This leads to an GenericFileOperationFailedException, which will again cause
> the poll to fail without a disconnect. From now on, polling this endpoint
> will fail until restarting the containing route.
>
> Adding stepwise=false as an workaround did not work in our case because one
> of teh external FTP servers will return absolute paths when calling the list
> command, resulting in an error when trying to download the files.
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