12 2012 档案
Microsoft SQL Server installation
摘要:A Step by Step guide to installing SQL Server 2008 simply and successfully with no prior knowledgeDevelopers and system administrators will find this installation guide useful, as will seasoned DBAs. It will teach you the basics required for a typical, problem-free installation of SQL Server 2008, a
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hadoop elementary course
摘要:导引两个主要的问题如何存储海量数据如何分析海量数据Hadoop就是Hadoop项目它包括Common, Avro, MapReduce, HDFS, Pig, Hive, Hbase, ZooKeeper, Sqoop, OozieHadoop文件系统适合于有数据流(一次写,多次读)和运行的普通主机上的海量数据但是Hadoop文件系统部适合运行延迟性输入,多次写以及随意修改的小文件HDFS 框架分块:默认64M(很大,因为用于海量数据)名字结点:含有文件系统的目录,文件信息以及相应的分块信息(很重要)数据结点:储存分块信息HA策略:1.x只能有一个名字结点,2.x之后就有针对名字结点的活动-待
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HDOJ_ACM_饭卡
摘要:Problem Description电子科大本部食堂的饭卡有一种很诡异的设计,即在购买之前判断余额。如果购买一个商品之前,卡上的剩余金额大于或等于5元,就一定可以购买成功(即使购买后卡上余额为负),否则无法购买(即使金额足够)。所以大家都希望尽量使卡上的余额最少。某天,食堂中有n种菜出售,每种菜可购买一次。已知每种菜的价格以及卡上的余额,问最少可使卡上的余额为多少。Input多组数据。对于每组数据:第一行为正整数n,表示菜的数量。n<=1000。第二行包括n个正整数,表示每种菜的价格。价格不超过50。第三行包括一个正整数m,表示卡上的余额。m<=1000。n=0表示数据结束。Ou
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vi for beginner
摘要:1.open terminal2.type "vi" <enter>if you want to exit, type ":q!"3.type "cd /etc", which means go to the directory of the etctype "cd", it will return to root directory.type "vi /etc/fstab", which means you edit the file.type "vi xx.txt&qu
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Ubuntu12.04.1 LTS Installion
摘要:Because I select "try ubuntu" , untill now I continue install1.select continue2.select something else you can create or resize partitions yourself or choose multiple partitions for Ubuntu.select "new partition table"select "ext3", "/" and type 20,000. this is
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install linux on the window by using VMware
摘要:1.download VMwarehttp://www.xiazaiba.com/html/516.htmlaccording to tips, you will install successfully2.new virtual machineselect typicalselect install the os later.select Linuxe and Red Hat Enterprise Linux 5.name after your virtual machine and select the location.select the limited room which is t
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HDOJ_ACM_Ahui Writes Word
摘要:Problem DescriptionWe all know that English is very important, so Ahui strive for this in order to learn more English words. To know that word has its value and complexity of writing (the length of each word does not exceed 10 by only lowercase letters), Ahui wrote the complexity of the total is les
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HDOJ_ACM_悼念512汶川大地震遇难同胞——珍惜现在,感恩生活
摘要:Problem Description急!灾区的食物依然短缺!为了挽救灾区同胞的生命,心系灾区同胞的你准备自己采购一些粮食支援灾区,现在假设你一共有资金n元,而市场有m种大米,每种大米都是袋装产品,其价格不等,并且只能整袋购买。请问:你用有限的资金最多能采购多少公斤粮食呢?后记:人生是一个充满了变数的生命过程,天灾、人祸、病痛是我们生命历程中不可预知的威胁。月有阴晴圆缺,人有旦夕祸福,未来对于我们而言是一个未知数。那么,我们要做的就应该是珍惜现在,感恩生活——感谢父母,他们给予我们生命,抚养我们成人;感谢老师,他们授给我们知识,教我们做人感谢朋友,他们让我们感受到世界的温暖;感谢对手,他们令我
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