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https://issues.apache.org/jira/browse/SSHD-812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16431182#comment-16431182
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Guillaume Nodet edited comment on SSHD-812 at 4/9/18 8:35 PM:
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I've refactored to smaller commits so that things are more obvious to check.
See https://github.com/apache/mina-sshd/pull/49

The first 3 commits could be merged without changing the logic from synchronous 
to asynchronous, they are required but they're just small refactoring.


was (Author: gnt):
I've refactored to smaller commits so that things are more obvious to check.
See https://github.com/apache/mina-sshd/pull/49

> support asynchronous mode for sftp subsystem
> --------------------------------------------
>
>                 Key: SSHD-812
>                 URL: https://issues.apache.org/jira/browse/SSHD-812
>             Project: MINA SSHD
>          Issue Type: New Feature
>    Affects Versions: 1.7.0
>         Environment: java1.8, linux
>            Reporter: Zhenliang Su
>            Assignee: Goldstein Lyor
>            Priority: Minor
>              Labels: asynchronous, sftp
>         Attachments: Main.java, doRead.png
>
>
> I used SSHD as a middleman between client and target sftp server.
> I found that, when filezilla client directly connect to the target sftp 
> server, it transfers fast. When filezilla client connect to the middleman, it 
> transfers slow.
> I analyzed the source code of 
> org.apache.sshd.server.subsystem.sftp.SftpSubsystem#doRead, and I found it 
> behaves like block mode, and client's other SSH_FXP_READ request blocked in 
> the same thread.
>  
> my middleman code:
>  [^Main.java]
>  



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