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Simple explanation of MapReduce?

... quick and "for dummies" introduction to MapReduce is available at: http://www.marcolotz.com/?p=67 Posting some of it's content: First of all, why was MapReduce originally created? Basically Google needed a solution for making large computation jobs easily parallelizable, allowing data to be distrib...
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Should MySQL have its timezone set to UTC?

...L can store partial dates in datetime columns, these look like "2013-00-00 04:00:00" MySQL stores "0000-00-00 00:00:00" if you set a datetime column as NULL, unless you specifically set the column to allow null when you create it. Read this To select a timestamp column in UTC format no matter wha...
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ImportError: No module named PIL

... Eric O LebigotEric O Lebigot 76.6k4040 gold badges191191 silver badges244244 bronze badges ...
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Determine if an element has a CSS class with jQuery

... answered Nov 4 '08 at 20:04 JavierJavier 55.7k77 gold badges7474 silver badges119119 bronze badges ...
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UIScrollView scroll to bottom programmatically

...| edited Oct 11 '15 at 16:04 answered Apr 2 '15 at 11:49 Es...
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Convert base-2 binary number string to int

...for. – Naftuli Kay Jan 19 '12 at 16:04 64 In case someone is looking for the opposite: bin(255) -...
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Checking if a string array contains a value, and if so, getting its position

...| edited Jun 29 '15 at 14:04 Niklas 11.9k2020 gold badges6666 silver badges114114 bronze badges answered...
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Session timeout in ASP.NET

... answered Mar 16 '09 at 12:04 HectorMacHectorMac 5,72144 gold badges2020 silver badges2323 bronze badges ...
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How to write log to file

....SetOutput? – nemo Nov 14 '13 at 15:04 1 The safer permissions are 0644 or even 0664 to allow use...
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How do I clear only a few specific objects from the workspace?

...nks! – user3768495 Sep 22 '15 at 16:04 2 Use @mbask's answer (just below): rm(list = ls()[grep("...