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https://issues.apache.org/jira/browse/NET-652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sebb resolved NET-652.
----------------------
Resolution: Won't Fix
> Ftp Connection Resuming
> -----------------------
>
> Key: NET-652
> URL: https://issues.apache.org/jira/browse/NET-652
> Project: Commons Net
> Issue Type: Improvement
> Components: FTP
> Affects Versions: 3.6
> Reporter: chenzero
> Priority: Major
>
> In a unstable networking, it can not download a relative big file from FTP
> server.
> For most FTP servers, the "REST" command is supported, and can be used to
> specify the transfer starting offset.
> in additional, a progress data is saved at the end of the local fie.
> The format is: signature(32 bytes) + remoteFile timestamp(long) + transferred
> offset(long)
> so, the whole progress data is 48 bytes.
> if connection broken, the FtpClient will first read progress data from the
> local file
> and transfer resumed from the offset.
>
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