The files from
dumps.wikimedia.org/other/pagecounts-raw/2011/2011-10/pagecounts-20111008-180001.gz
to
dumps.wikimedia.org/other/pagecounts-raw/2011/2011-10/pagecounts-20111008-220001.gz
appear to be Domas' (very informative) blog about MySQl locking, rather than true log summaries.....
All the best,
Richard.