[jira] [Commented] (VFS-533) [SFTP] Support connect-timeouts for SFTP-connections

["Christian Ciach (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/VFS-533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14073289#comment-14073289 ] 

Christian Ciach commented on VFS-533:
-------------------------------------

Also, in SftpClientFactory.java, I hightly recommend changing the second call {{session.setTimeout(timeout)}} (after the connection is made) to {{session.setServerAliveInterval(timeout)}} in . The second method sets the timeout, too, but also sends keep alives to the server to keep the connection alive. We need this in our environment for long-running jobs.


> [SFTP] Support connect-timeouts for SFTP-connections
> ----------------------------------------------------
>
>                 Key: VFS-533
>                 URL: https://issues.apache.org/jira/browse/VFS-533
>             Project: Commons VFS
>          Issue Type: Improvement
>    Affects Versions: 2.0, 2.1
>            Reporter: Christian Ciach
>            Priority: Minor
>         Attachments: sftpConnectTimeout.patch
>
>
> In contrast to other types of FTP filesystems, there is currently no way to have different connection- and socket-timeouts. This is because the Jsch-Session only accepts one timeout property which is used for both purposes. Because of this, a SftpFileSystemConfigBuilder also only provides one method called setTimeout(). The SftpClientFactory then applies this value to the Jsch Session before the connection is made. 
> Looking at the implementation of a Jsch Session, it becomes clear the the timeout value is used as a connection timeout if it is set before the call to the connect-method. After the connection is established, one can call setTimeout() again to override the socket timeout.
> Currently VFS has no interface to support this behaviour, so I made a patch to support this. 



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