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BizTalk 2004 SP1 - FTP connections are left open

Because of the limited FTP connections I can use, I came across a change in functionality after installing SP1 for BizTalk Server 2004. The pre-SP1 FTP adapter used to close its connection after sending a file. It would just send the FTP - QUIT command.

The BizTalk product Group changed this in order to make a static FTP send port quicker (the logon procedure isn't started every time a file is send). This is of course better, as the connection is now only disconnected when the FTP server closes the connection due to an idleness timeout.

In my current project we send files by FTP using a dynamic send port and I'm only aloud to use 100 FTP connections, so that's an unfortunate limit I have to cope with.

The real problem is that now, after installing SP1, also the dynamic send connections are left open (they are closed after the session timeout). As it is a dynamic port a new connection is opened with every file send. Due to the limited amount of connections getting into trouble is inevitable. So now the whole concept of a dynamic FTP port becomes rather useless when only limited connections are available.
Posted: Fri, Mar 25 2005 10:33 AM by Joris Arts | with 3 comment(s)
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Joris Arts said:


Always nice to see how a product group can really improve a product...

$@#@^%@%@#$%@# !!!!!!!

Is this an issue that will be solved by MS or not ?
# March 25, 2005 10:48 AM

Joris Arts said:


Maybe edit your post.... Cause I am missing the passive FTP stuff that will assign another port for each connection....
# March 25, 2005 10:49 AM

Joris Arts said:

I added the bit you suggested and the official MS comment as off yet is they need a real strong business case in order to fill out a design change request.
# March 25, 2005 10:58 AM
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