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Operating System - OpenVMS
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FTP Server occasionally very slow serving client connections

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Brian Reiter
Valued Contributor

FTP Server occasionally very slow serving client connections

Hi Folks,

 

I have a pair of RX2800s running in a cluster, the system disk is not shared. The software versions are:

 

TCPIP 5-7 ECO 3

OpenVMS 8-4 Update 7.0

 

Client software is attempting to download a datase and while it does work the whole process is very slow. The FTP server is reporting the following mesages in its log file:

 

%TCPIP-I-FTP_CHINFO, TCPIP$FTPC0002C: Error building data connection
%SYSTEM-F-DUPLNAM, duplicate name
%TCPIP-I-FTP_NODE, client host name: WOIF12_30
%TCPIP-I-FTP_USER, user name: COBS_30_OIF
%TCPIP-I-FTP_OBJ, object: -
%TCPIP-I-FTP_CHINFO, TCPIP$FTPC0002F: Failed to bind data socket
%SYSTEM-F-DUPLNAM, duplicate name
%TCPIP-I-FTP_NODE, client host name: WOIF19_30
%TCPIP-I-FTP_USER, user name: COBS_30_OIF
%TCPIP-I-FTP_OBJ, object: 10.53.0.29
%TCPIP-I-FTP_CHINFO, TCPIP$FTPC0002C: Error building data connection
%SYSTEM-F-REJECT, connect to network object rejected
%TCPIP-I-FTP_USER, user name: COBS_30_OIF
%TCPIP-I-FTP_SESDCN, FTP SERVER: session disconnection from WOIF19_30 at 29-APR-2013 13:28:39.31
%TCPIP-I-FTP_USER, user name: COBS_30_OIF

And the log file created in the clients directory shows:

 

$ Set NoOn
$ VERIFY = F$VERIFY(F$TRNLNM("SYLOGIN_VERIFY"))
 Certificate file not found

The string "Certificate file not found" may be a red-herring as this seems to be in the FTP child executable.

 

I've found references to a similar problem from many years ago, the problem I have is that the problem itself doesn't occur reliably.

 

Regards

 

 

Brian Reiter

 

 

 

1 REPLY
Brian Reiter
Valued Contributor

Re: FTP Server occasionally very slow serving client connections

According to the Office of OpenVMS programs this wil be corrected in a subsequent TCPIP ECO.

 

Now if only it were easy to get the patches.

 

 

Brian