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Guillaume Nodet commented on SSHD-812: -------------------------------------- [~lgoldstein] What's the supposed split between {{SftpSubsystem}} and {{AbstractSftpSubsystemHelper}} ? I have quite a hard time understanding the concept here. I would think that {{AbstractSftpSubsystemHelper}} should handle all the sftp protocol side of things (decoding buffers, encoding requests) while the subclass implementation will deal with the i/o (receiving requests, sending responses and dealing with the file system). One problem I have is that while AbstractSftpSubsystemHelper is abstract from {{Handle}} and its subclasses, the {{SftpEventListener}}s are not, so the API is not well defined enough I think. > 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] > -- This message was sent by Atlassian JIRA (v7.6.3#76005)