If a network box drop the SFTP connection, for example because of inactivity, the BC is not informed of this reset and will reuse the SFTP connection. So it will be blocked waiting replies from the SSH server.
Roland Naudin added a comment - Thu, 12 Aug 2010 - 15:19:53 +0200 - edited The patch is validate for the branch 1.2.x.
The versions 1.3.x will handle that issue in a pool of connection.
A patch that should fix the problem managing a timeout on the client side