>From time to time we send a large MICS file to SFS and get that "Foreign host aborted the connection" message. When we look at the SFS there is a partial file. We use VMFTP and check for RC=250 and stop processing. The point though is that SFS retains the partial file.
-----Original Message----- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Schuh, Richard Sent: Friday, November 30, 2007 12:49 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: FTP Append (Update) Those messages occur over and over in the logs. Of the 10 listed messages, 2 were one-time messages; the no such connection message occurred about 10 times. There were 12 of the shut down messages, the last being in July of this year. The rest occur thousands of times, each. One interesting note: In 2004, I asked essentially the same question about the same message. At that time, we were seeing a null file in SFS. This is probably the same problem, except we have not seen the null file. That is probably a matter of timing - if we look before the next addition is appended, we would probably see it. There were no answers posted to my query back then. The problem was self-healing; it went away for over 3.5 years. We do have a circumvention. When the PC posts the DATACONN message, the whole file is sent using PUT instead of APPEND, insuring that no corrupted file lasts for a measurable period. This will increase the amount of data on the network, but it will prevent confusion and manual intervention. As for leaving a partial or corrupted files, isn't SFS supposed to handle that? Something about a commit, perhaps? If FTPSERVE is committing a corrupted file, I would hope that it does not have a way to tell SFS to abandon the rename process in the middle. Speaking of SFS, the last occurrence of this problem was about midway between two control data backups that were 10 hours apart, so that is not the source of the problem. There were no messages, as in none at all, on the file pool server's console log between the two backups. Regards, Richard Schuh -----Original Message----- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of David Boyes Sent: Thursday, November 29, 2007 6:42 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: FTP Append (Update) > Foreign host aborted the connection > No such connection > Foreign host is no longer responding > TCP/IP service is being shut down > Destination network is unreachable These messages could occur during transfer, which might leave a partial file or a corrupted block, but there would have to be a very tight race to get it committed. If this were minidisks (I think you said this is SFS), then you could conceivably get the server to think a partial file was successfully written and have it replace the original (the old "write a new copy, close, delete old, rename new" method), but that would require some very tricky timing. -------------------------------------------------------- This message w/attachments (message) may be privileged, confidential or proprietary, and if you are not an intended recipient, please notify the sender, do not use or share it and delete it. Unless specifically indicated, this message is not an offer to sell or a solicitation of any investment products or other financial product or service, an official confirmation of any transaction, or an official statement of Merrill Lynch. Subject to applicable law, Merrill Lynch may monitor, review and retain e-communications (EC) traveling through its networks/systems. The laws of the country of each sender/recipient may impact the handling of EC, and EC may be archived, supervised and produced in countries other than the country in which you are located. This message cannot be guaranteed to be secure or error-free. This message is subject to terms available at the following link: http://www.ml.com/e-communications_terms/. By messaging with Merrill Lynch you consent to the foregoing. --------------------------------------------------------
