Re: files ftp'd from VMS to Tru64 occasionally arrive as empty files ??
From: Peter da Silva (peter_at_abbnm.com)
Date: 03/01/04
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Date: Mon, 1 Mar 2004 16:36:45 +0000 (UTC)
In article <e0ac4809.0403010213.1f7debc3@posting.google.com>,
James Blackmore <jblackmore@post.com> wrote:
> This mechanism generally works correctly, however about once or twice
> a week we see an empty file on the Tru64 side, however checking the
> file which was sent from VMS it was not empty.
Using FTP for file transfers by running an interactive client from a
script is fraught with problems, no matter what the OS. You need to at
least look at the output for messages indicating success and raise an
alarm if they're not there.
You could be running out of disk space on the sending side. Your script
may have a timing problem, so that the source file is being re-written
while it's trying to transfer it, the FTP client may be failing to read
from a locked file...
> I have searched for any known Tru64 ftp issues which might give this
> behaviour, but can't find anything on this.
Apart from disk space issues, I can't think of anything.
> I am trying to get a log file from the vms script when it ftp'd the
> file which ended up empty so I can check if ftp logs n bytes sent (we
> only keep logs for a few hours due to size, so this is hard to catch),
That's a start, but modifying the script so it flags and alerts you on
errors, or switching from interactive FTP to some more robust mechanism,
seems to be in order.
-- I've seen things you people can't imagine. Chimneysweeps on fire over the roofs of London. I've watched kite-strings glitter in the sun at Hyde Park Gate. All these things will be lost in time, like chalk-paintings in the rain. `-_-' Time for your nap. | Peter da Silva | Har du kramat din varg, idag? 'U`
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