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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (NET-652) Ftp Connection Resuming
Date Mon, 22 Jan 2018 15:09:00 GMT

     [ https://issues.apache.org/jira/browse/NET-652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

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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