Multiple Mantids on Windows cannot write to the log file

[mantid-builder]

This issue was originally TRAC 6127

Original Reporter: Russell Taylor

If multiple Mantid processes are started on Windows you get a cryptic message on the console "Cannot open file" for all but the first one. It turns out that this is coming from the logging framework - the first time (& only the 1st time) the second process tries to log something to the mantid.log file it finds it cannot open it.

I'm not sure this is if sufficient concern to try and fix, but I thought I'd record it nonetheless.

N.B. You don't see the message with MantidPlot as it goes to stderr, though the issue is presumably still there.

[mantid-builder]

Russell Taylor (2012-11-14T22:26:02):
Re http://trac.mantidproject.org/mantid/ticket/6127. Give a bit more information in the error printout.
a991bb1

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@NickDraper (2012-11-23T09:02:31):
I guess the answer here is to make the path for the log file local to the executable

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Russell Taylor (2012-12-06T21:11:04):
Re http://trac.mantidproject.org/mantid/ticket/6127. Give a bit more information in the error printout.
a991bb1

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@NickDraper (2013-01-28T09:25:15):
Moved at the code freeze for release 2.4

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@NickDraper (2013-04-29T09:50:10):
Moved to r2.6 at the end of r2.5

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@NickDraper (2013-07-26T13:59:11):
Moved to the Backlog after the code freeze for R2.6

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@NickDraper (2014-02-14T11:07:57):
bulk move to assigned at the into of the triage step

[NickDraper]

Not really worth fixing - multiple mantids is an exceptional use case