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From "BenD (JIRA)" <j...@apache.org>
Subject [jira] [Created] (VFS-446) Undesired blocking during FileUtil.copyContent if destFile is SftpFileObject and the network connection to destFile goes away
Date Thu, 15 Nov 2012 21:07:12 GMT
BenD created VFS-446:
------------------------

             Summary: Undesired blocking during FileUtil.copyContent if destFile is SftpFileObject
and the network connection to destFile goes away
                 Key: VFS-446
                 URL: https://issues.apache.org/jira/browse/VFS-446
             Project: Commons VFS
          Issue Type: Bug
    Affects Versions: 2.0
         Environment: Ubuntu 12.04 
jdk 1.6.0_34-b04
            Reporter: BenD


I'm attempting to copy content of srcFile to destFile using FileUtil.copyContent(FileObject
srcFile, FileObject destFile).  While the content is being transferred, but before it completes,
I bring the network down on the destination sftp server.  No exception is thrown and thread
blocks until what I can only assume is some long system timeout.  

MonitorOutputStream appears to handle a client-side close fine but if the remote server closes
the connection after the write already started then when the underlying BufferedOutputStream
flushes to the underlying network stream it hangs until the system timeout expires.

The subsequent destFile.getContent().getOutputStream().close() suffers the same fate as does
the closing of destFile's FileSystemManager - I'm guessing because each attempts to flush
to the underlying network stream.

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