<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[千里之行，始于足下]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/iteye_15509</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; iteye_15509]]></copyright><item><title><![CDATA[mysql 笔记]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82674865</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82674865</guid><author>iteye_15509</author><pubDate>Tue, 25 Oct 2016 11:01:13 +0800</pubDate><description><![CDATA[
 
查询建表语句 mysql ddl

SHOW CREATE TABLE tablename;  

 
 
判断字符串是否是数字
[column] REGEXP '^[0-9]+$' 
]]></description><category></category></item><item><title><![CDATA[ IntelliJ IDEA]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82673766</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82673766</guid><author>iteye_15509</author><pubDate>Tue, 27 Sep 2016 21:39:04 +0800</pubDate><description><![CDATA[
 
IntelliJ IDEA 2016.1.3注册破解激活
]]></description><category></category></item><item><title><![CDATA[python]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82645747</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82645747</guid><author>iteye_15509</author><pubDate>Wed, 30 Dec 2015 10:43:04 +0800</pubDate><description><![CDATA[
 
python类型转换
 
生成随机数
python
import random
random.randint(1,10)
 
]]></description><category></category></item><item><title><![CDATA[mac]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82636083</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82636083</guid><author>iteye_15509</author><pubDate>Sat, 13 Jun 2015 16:24:29 +0800</pubDate><description><![CDATA[
Mac OS X使用快捷键改善窗口管理的六个方法
 
sublime的基本使用
 
 
grep
more all |grep tb.*pc
 
 
 
清除 .DS_Store
sudo find / -name &quot;.DS_Store&quot; -depth -exec rm {} \;
禁止系统创建 
defaults write com.apple.desktopser...]]></description><category></category></item><item><title><![CDATA[运行Java命令的同时添加依赖jar包及参数]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82618600</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82618600</guid><author>iteye_15509</author><pubDate>Mon, 04 May 2015 09:33:01 +0800</pubDate><description><![CDATA[
方案一： java -classpath %classpath%;/lib/activation.jar;/lib/ant.jar;.../lib/xstream-1.2.1.jar org.mule.MuleServer -config /conf/HBADCservice-config.xml -props /conf/vaseai.properties 使用这种方案对classpath参...]]></description><category></category></item><item><title><![CDATA[Spark集群的安装与部署]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82613011</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82613011</guid><author>iteye_15509</author><pubDate>Sat, 17 Jan 2015 22:25:08 +0800</pubDate><description><![CDATA[
 
一,安装Scala
下载 ：http://www.scala-lang.org/download/ 
配置环境变量的方式同Java，为了方便全部写在一起放入/etc/profile.d目录
hadoop.sh
 
#set Java Enviroment
export JAVA_HOME=/usr/java/jdk1.6.0_45
export JRE_HOME=$JAVA...]]></description><category></category></item><item><title><![CDATA[两个算法题]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82602140</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82602140</guid><author>iteye_15509</author><pubDate>Thu, 07 Aug 2014 22:46:09 +0800</pubDate><description><![CDATA[

题目１.数组a[100]中有100个整形数，这些数是0到999中选出来的，其中只有两个数相同。（类似的题：这100个数中有两个数为0）解法一：



解法二：

 
 
题目２
给定 n×n 的实数矩阵，每行和每列都是递增的。求其中的某个数所在坐标。
问题类似于　有序矩阵的中位数算法

 
参考：
http://bbs.youkuaiyun.com/topics/390516709...]]></description><category></category></item><item><title><![CDATA[DBCP]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82600632</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82600632</guid><author>iteye_15509</author><pubDate>Sun, 20 Jul 2014 08:45:41 +0800</pubDate><description><![CDATA[
 
 
参考
dbcp基本配置和重连配置
]]></description><category></category></item><item><title><![CDATA[Java设置虚拟机参数]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82600622</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82600622</guid><author>iteye_15509</author><pubDate>Sat, 19 Jul 2014 22:05:22 +0800</pubDate><description><![CDATA[
 
 
一，Eclipse开发环境
 
直接在Run Configuration -&amp;gt; JRE -&amp;gt; VM arguments 里加上
-server -Xms320m -Xmx320m  -Xmn120m -XX:PermSize=128m -XX:MaxPermSize=128m -Xss256k -XX:+CMSClassUnloadingEnabled
其中 -...]]></description><category></category></item><item><title><![CDATA[Java Reflection：Methods类方法]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82584394</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82584394</guid><author>iteye_15509</author><pubDate>Mon, 07 Jul 2014 17:32:22 +0800</pubDate><description><![CDATA[
用Class 的getMethods 可以取的类的全部方法的定义
 
Class aClass = ...//obtain class object  
Method[] methods = aClass.getMethods(); 
 
如果知道类方法的参数类型，则可以使用getMethod 取的对应的方法定义,如：
Class  aClass = ...//obtain cla...]]></description><category></category></item><item><title><![CDATA[ Linux 终端命令 rm 删除的文件进入回收站实现方法]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82572350</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82572350</guid><author>iteye_15509</author><pubDate>Thu, 13 Mar 2014 21:53:40 +0800</pubDate><description><![CDATA[
第一步
新建个脚本内容如下：
#!/bin/sh
# script to send removed files to trash directory
mv $@ ~/.local/share/Trash/files          #有$1~$9个数量, $@代表all
 
保存文件命为 rm.sh 假设保存路径为/bin 修改属性: chmod +x /bin/rm.sh
第...]]></description><category></category></item><item><title><![CDATA[hadoop 集群间数据迁移]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82572128</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82572128</guid><author>iteye_15509</author><pubDate>Wed, 12 Mar 2014 14:38:09 +0800</pubDate><description><![CDATA[
 
将HDFS的路径hadoop.tmp.dir修改
 
&amp;lt;property&amp;gt;
	 &amp;lt;name&amp;gt;hadoop.tmp.dir&amp;lt;/name&amp;gt;
	 &amp;lt;value&amp;gt;/home/tmp&amp;lt;/value&amp;gt;
&amp;lt;/property&amp;gt;

 
 
 
num=8
slave=lenovo
#for i in {1.....]]></description><category></category></item><item><title><![CDATA[内存数据库Redis的基本安装与使用]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82571475</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82571475</guid><author>iteye_15509</author><pubDate>Thu, 06 Mar 2014 21:29:17 +0800</pubDate><description><![CDATA[
官网：http://www.redis.io参考文档： http://www.redis.cn/http://redis.readthedocs.org/en/latest/index.html
http://manual.csser.com/redis/index.html
下载wget http://download.redis.io/releases/redis-2.8.6.tar....]]></description><category></category></item><item><title><![CDATA[在线logo制作]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82570641</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82570641</guid><author>iteye_15509</author><pubDate>Fri, 28 Feb 2014 18:25:06 +0800</pubDate><description><![CDATA[
来源：
http://nihao.tk
 
一、综合类
http://www.eoool.com
http://cooltext.com/
http://www.fodey.com/
http://sagittarius.dip.jp/toshi/
http://www.chami.com/
http://www.makepic.com/
http://www.coolarc...]]></description><category></category></item><item><title><![CDATA[Hadoop2集群的安装与布署]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82566582</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82566582</guid><author>iteye_15509</author><pubDate>Sat, 11 Jan 2014 14:09:08 +0800</pubDate><description><![CDATA[
 
1. 环境
Centos X86_64 6.4
JDK 1.6.0_45
Hadoop 2.2.0
8G内存 500G硬盘
4台机器，每台机器用户名都是hadoop
 


hostname
角色
ip


lenovo10
NN + RM + SNN
218.193.154.XXX


lenovo9
NM + DN
 


lenovo11
NM +...]]></description><category></category></item><item><title><![CDATA[win7自动安装设备驱动]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82565562</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82565562</guid><author>iteye_15509</author><pubDate>Sun, 05 Jan 2014 21:16:28 +0800</pubDate><description><![CDATA[
Windows 7自动安装驱动程序，请按以下方法进行操作
1.点击“开始”中的“控制面板”。 
2.点击“设备和打印机”，新窗口中将显示连接到计算机上的所有设备。 
3.用鼠标“右键”点击代表计算机的图标，选择“设备安装设置”。 
4.系统默认为“是，自动执行该操作（推荐）”。
...]]></description><category></category></item><item><title><![CDATA[关于互联网模式]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82555055</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82555055</guid><author>iteye_15509</author><pubDate>Wed, 25 Dec 2013 20:07:45 +0800</pubDate><description><![CDATA[
 

用户和客户应该分开
 
前端开发  bootstrap+angularJS
 
《精益创业》
 
资料：
1.bootstrap+angularJS前端自适应代码
 

]]></description><category></category></item><item><title><![CDATA[-Djava.library.path]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82554064</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82554064</guid><author>iteye_15509</author><pubDate>Wed, 18 Dec 2013 15:23:23 +0800</pubDate><description><![CDATA[
一。如何使用native方法？
java一般使用两个path：classpath 和 java.library.path
classpath是指向jar包的位置。也就是JDK的lib目录
java.library.path是非java类包的位置如（dll,so）
配制方法：
1：LINUX下的系统变量LD_LIBRARY_PATH来添加java.library.path
2：在vm...]]></description><category></category></item><item><title><![CDATA[Hadoop性能调优]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82553362</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82553362</guid><author>iteye_15509</author><pubDate>Thu, 12 Dec 2013 13:36:40 +0800</pubDate><description><![CDATA[
重要参数


name
说明


mapred.task.profile
是否对任务进行profiling，调用java内置的profile功能，打出相关性能信息


mapred.task.profile.{maps|reduces}
对几个map或reduce进行profiling。非常影响速度，建议在小数据量上尝试


mapred.job.reuse.jvm.num.ta...]]></description><category></category></item><item><title><![CDATA[注册表相关]]></title><link>https://blog.youkuaiyun.com/iteye_15509/article/details/82551949</link><guid>https://blog.youkuaiyun.com/iteye_15509/article/details/82551949</guid><author>iteye_15509</author><pubDate>Mon, 02 Dec 2013 17:42:06 +0800</pubDate><description><![CDATA[注册表编程 regedit  然后在edit －&amp;gt; find 输入查找]]></description><category></category></item></channel></rss>