摘要MapReduce是一个编程模型,和处理,产生大数据集的相关实现.用户指定一个map函数处理一个key/value对,从而产生中间的key/value对集.然后再指定一个reduce函数合并所有的具有相同中间key的中间value.下面将列举许多可以用这个模型来表示的现实世界的工作.以这种方式写...
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其他好文 时间:
2014-06-29 00:17:14
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369
Configuration ErrorDescription: An error occurred during the processing of a configuration file required to service this request. Please review the sp...
Cone crusher was invented in the late 19th century with the development of mining industry and stone processing. Now with mature development of techno...
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其他好文 时间:
2014-06-28 12:43:17
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219
A lot of computations involve processing a string one character at a time. Often they start at the beginning, select each character in turn, do someth...
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其他好文 时间:
2014-06-23 07:19:02
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257
做了2个action,其中一个运行没有问题,另一个报错,看下面的报错信息,再看了看struts.xml,因为没有给GetBooks这个action配置actionform,所以就导致报null。下面是有问题的struts.xml,其中主要的问题就是没有给GetBooks这个action配置actio...
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编程语言 时间:
2014-06-21 10:58:41
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406
All people seem to need data processing( Application presentation session transport network data link physic )host : end device ( PC Server )switch : ...
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其他好文 时间:
2014-06-21 00:01:08
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493
Chrome Timeline的指标说明:Blocked、Connect、Send、Wait、Receive Blocked time includes any pre-processing time (such as cache lookup) and the time spent waiting...
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其他好文 时间:
2014-06-20 15:07:33
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277
BACKGROUNDThe present disclosure relates generally to information processing systems and, more specifically, to a mechanism that maintains the archite...
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其他好文 时间:
2014-06-18 22:03:25
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216
http://www.tuicool.com/articles/RRrENj你知道我们可以在浏览器中用css开启硬件加速,使GPU (Graphics Processing Unit) 发挥功能,从而提升性能吗?现在大多数电脑的显卡都支持硬件加速。鉴于此,我们可以发挥GPU的力量,从而使我们的网站或...
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Web程序 时间:
2014-06-18 17:15:48
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260
BACKGROUNDAdvances in semi-conductor processing and logic design have permitted an increase in the amount of logic that may be present on integrated c...
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其他好文 时间:
2014-06-16 13:19:01
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347