06-20-2017
I will write this assuming that the place they are generated/written is Site A and they have clients in Site B.
Even though they two sites may only be 20 miles apart, you may find that there is a much smaller link between the sites. It is common to have 100Mb network at both sites, but only a 2Mb link between them. For small files being read at Site B that is not a problem. The issue is with larger files. I would suggest having a process to get a copy of files to Site B. You could implement some logic like this:-
- When a large file is written to Site A, you should save a timestamp in a reference file and begin a copy to Site B. You can copy however you like, be that (s)ftp, rcp/scp, rsync or anything else that works for you.
- When reading a larger file at site B, read the Site A reference file first and get the timestamp, comparing it with the timestamp of the local file. If the Site B file is up to date, read the local file; if not then read the Site A file.
An alternate may be to remove the Site B file when a new file is written to Site A and atomically copy the file to Site B. That way the Site B client just has to read the Site B file. If that fails (i.e. there is no file) then read the Site A file.
Would either of these work for you?
I hope that it helps,
Robin
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octave
OCTAVE(1) General Commands Manual OCTAVE(1)
NAME
octave - A high-level interactive language for numerical computations.
SYNOPSIS
octave [options]... [file]
DESCRIPTION
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AUTHOR
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GNU Octave 4 February 2011 OCTAVE(1)