I suggest that the DC1 queue code could be simplified and made more
robust by insisting that files be ordered alphabetically, rather than
measuring the creation date and picking the earliest file.
The reason this may be more robust (if the naming can be done
reliably) is that file creation date can be either unreliable or too
chunky for some kinds of file systems.
It is simpler because there is no need to query for file creation
name. Instead, one simply sorts the list of found files -- an
operation that is blazingly fast in python (it has a superb sort).
-- Russell
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