MapReduce
MapReduce is a programming model for data processing. The model is simple, yet not
too simple to express useful programs in. Hadoop can run MapReduce programs written
in various languages...
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其他好文 时间:
2014-08-08 12:44:23
阅读次数:
231
如果当前使用的Android SDK是v20的话,在通过Eclipse或者Intellij IDEA打包Android项目时,会出现一个”cannot find zipalign”的错误。这个错误的原因在于google将zipalign程序移动到了build-tools/android-4.4W目录...
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移动开发 时间:
2014-08-08 12:12:05
阅读次数:
217
It took me +20 submissions to get AC... Actually the statement is too vague. I would rather ask for requirements f2f.Apparently the code below can be ...
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其他好文 时间:
2014-08-06 08:23:11
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319
2014/08/0508:53:49[alert]13576#0:accept()failed(24:Toomanyopenfiles)方法一:只对root和nodbdy用户增加该值。#vim/etc/security/limits.confrootsoftnofile10240roothardnofile10240nobodysoftnofile10240nobodyhardnofile10240方法二:对所有用户增加该值代码如下 复制代..
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其他好文 时间:
2014-08-05 22:57:10
阅读次数:
485
为什么我们需要恢复innodb的字典信息?当我们drop 一个表时,发现误操作,这时表结构又没有备份,那么想恢复数据是非常困难的。所以我们想恢复被删除的表时,首先就需要恢复表结构,目前已经有了undrop-for-innodb这个工具,相比之前的工具percona-data-recovery-too...
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数据库 时间:
2014-08-03 23:03:36
阅读次数:
497
Problem Description
The aspiring Roy the Robber has seen a lot of American movies, and knows that the bad guys usually gets caught in the end, often because they become too greedy. He has decided t...
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其他好文 时间:
2014-08-01 16:10:21
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184
Next time you see a numeric problem has a too straightforward solution, think about optimized one.Like this one: recursion\iteration is tooo slow. SoD...
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其他好文 时间:
2014-08-01 06:57:01
阅读次数:
279
首先通过文件引用找到extjs的样式文件: <link?rel="stylesheet"?type="text/css"
href="<%=basePath%>/publicresource/extlib/resources/css/ext-all.css"?/> 打开ext-all.css在文件最后添加下面代码 .x-too...
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Web程序 时间:
2014-07-31 21:24:17
阅读次数:
293
1. 为什么用string::size_type而不是int?--Why usestring::size_type?intis supposed to work! it holds numbers!--A short holds numbers too. So does a signed char....
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编程语言 时间:
2014-07-29 17:37:52
阅读次数:
278
A very interesting numeric problem. It involves a lot tricks.Linear search (by +\-) is not feasible - too slow. So binary search is a good idea. Also ...
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其他好文 时间:
2014-07-29 14:02:08
阅读次数:
187