jsch channel is not opened

﹏ヽ暗。殇╰゛Y 2022-01-14 01:51 303阅读 0赞

[2019独角兽企业重金招聘Python工程师标准>>> ][2019_Python_] ![hot3.png][]

Jsch使用的时候碰到一个问题， 调试后发现 ssh到服务器非常的卡， 建立查询服务器内存，可能是内存不够用了。

VFS同理。

Session created... com.jcraft.jsch.JSchException: channel is not opened. at com.jcraft.jsch.Channel.sendChannelOpen(Channel.java:765) at com.jcraft.jsch.Channel.connect(Channel.java:151) at com.jcraft.jsch.Channel.connect(Channel.java:145) at .application.ftp.SftpTemplate.getChannel(SftpTemplate.java:46) at
    
     org.apache.commons.vfs2.FileSystemException: Unknown message with code "Could not determine the type of file "sftp:///".".
    		at org.apache.commons.vfs2.provider.sftp.SftpFileObject.refresh(SftpFileObject.java:83)
    		at org.apache.commons.vfs2.provider.AbstractFileSystem.resolveFile(AbstractFileSystem.java:337)
    		at org.apache.commons.vfs2.provider.AbstractFileSystem.resolveFile(AbstractFileSystem.java:300)
    		at org.apache.commons.vfs2.provider.AbstractOriginatingFileProvider.findFile(AbstractOriginatingFileProvider.java:75)
    		at org.apache.commons.vfs2.provider.AbstractOriginatingFileProvider.findFile(AbstractOriginatingFileProvider.java:55)
    		at org.apache.commons.vfs2.impl.DefaultFileSystemManager.resolveFile(DefaultFileSystemManager.java:711)
    		at org.apache.commons.vfs2.impl.DefaultFileSystemManager.resolveFile(DefaultFileSystemManager.java:648)
    		at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    		at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    		at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    		at java.lang.reflect.Method.invoke(Method.java:498)
    Caused by: org.apache.commons.vfs2.FileSystemException: Could not determine the type of file "sftp:///".
    		at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:1291)
    		at org.apache.commons.vfs2.provider.sftp.SftpFileObject.refresh(SftpFileObject.java:81)
    		... 20 more
    Caused by: org.apache.commons.vfs2.FileSystemException: Could not connect to SFTP server at "sftp:///".
    		at org.apache.commons.vfs2.provider.sftp.SftpFileSystem.getChannel(SftpFileSystem.java:127)
    		at org.apache.commons.vfs2.provider.sftp.SftpFileObject.statSelf(SftpFileObject.java:127)
    		at org.apache.commons.vfs2.provider.sftp.SftpFileObject.doGetType(SftpFileObject.java:97)
    		at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:1285)
    		... 21 more
    Caused by: com.jcraft.jsch.JSchException: channel is not opened.
    		at com.jcraft.jsch.Channel.sendChannelOpen(Channel.java:765)
    		at com.jcraft.jsch.Channel.connect(Channel.java:151)
    		at com.jcraft.jsch.Channel.connect(Channel.java:145)
    		at org.apache.commons.vfs2.provider.sftp.SftpFileSystem.getChannel(SftpFileSystem.java:101)
    		... 24 more
    .application.vfs.VfsWrapperException:  Caused by: Unknown message with code "Could not determine the type of file "sftp:///".". Caused by: Could not determine the type of file "sftp:///". Caused by: Could not connect to SFTP server at "sftp:///". Caused by: channel is not opened.
    Caused by: org.apache.commons.vfs2.FileSystemException: Unknown message with code "Could not determine the type of file "sftp:///".".
    		at org.apache.commons.vfs2.provider.sftp.SftpFileObject.refresh(SftpFileObject.java:83)
    		at org.apache.commons.vfs2.provider.AbstractFileSystem.resolveFile(AbstractFileSystem.java:337)
    		at org.apache.commons.vfs2.provider.AbstractFileSystem.resolveFile(AbstractFileSystem.java:300)
    		at org.apache.commons.vfs2.provider.AbstractOriginatingFileProvider.findFile(AbstractOriginatingFileProvider.java:75)
    		at org.apache.commons.vfs2.provider.AbstractOriginatingFileProvider.findFile(AbstractOriginatingFileProvider.java:55)
    		at org.apache.commons.vfs2.impl.DefaultFileSystemManager.resolveFile(DefaultFileSystemManager.java:711)
    		at org.apache.commons.vfs2.impl.DefaultFileSystemManager.resolveFile(DefaultFileSystemManager.java:648)
    		... 13 more
    Caused by: org.apache.commons.vfs2.FileSystemException: Could not determine the type of file "sftp:///".
    		at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:1291)
    		at org.apache.commons.vfs2.provider.sftp.SftpFileObject.refresh(SftpFileObject.java:81)
    		... 20 more
    Caused by: org.apache.commons.vfs2.FileSystemException: Could not connect to SFTP server at "sftp:///".
    		at org.apache.commons.vfs2.provider.sftp.SftpFileSystem.getChannel(SftpFileSystem.java:127)
    		at org.apache.commons.vfs2.provider.sftp.SftpFileObject.statSelf(SftpFileObject.java:127)
    		at org.apache.commons.vfs2.provider.sftp.SftpFileObject.doGetType(SftpFileObject.java:97)
    		at org.apache.commons.vfs2.provider.AbstractFileObject.getType(AbstractFileObject.java:1285)
    		... 21 more
    Caused by: com.jcraft.jsch.JSchException: channel is not opened.
    		at com.jcraft.jsch.Channel.sendChannelOpen(Channel.java:765)
    		at com.jcraft.jsch.Channel.connect(Channel.java:151)
    		at com.jcraft.jsch.Channel.connect(Channel.java:145)
    		at org.apache.commons.vfs2.provider.sftp.SftpFileSystem.getChannel(SftpFileSystem.java:101)
    		... 24 more

转载于:https://my.oschina.net/u/3005325/blog/2086065

[2019_Python_]: https://my.oschina.net/u/2663968/blog/3061697
[hot3.png]: /images/20220113/a4dc916caf25453da980a19a35fb13f4.png