<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[tucailing的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/tucailing</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; tucailing]]></copyright><item><title><![CDATA[hadood2.6.0启动datanode报错]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/51028640</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/51028640</guid><author>tucailing</author><pubDate>Thu, 31 Mar 2016 18:00:19 +0800</pubDate><description><![CDATA[hadoop错误日志输出位置/hadoop2.6.0/logs/hadoop-tucl-datanode-tucl.log 


java.io.IOException: Incompatible clusterIDs in /usr/hadoop/data: namenode clusterID = CID-faa65317-6867-4e61-b366-19370a96459c; dat]]></description><category></category></item><item><title><![CDATA[Mysql与oracle生成随机整数]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/44747523</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/44747523</guid><author>tucailing</author><pubDate>Mon, 30 Mar 2015 10:59:19 +0800</pubDate><description><![CDATA[oracle：
1.小数（0~1）
select dbms_random.value from dual ;
2、指定范围内的小数（0~100）
select dbms_random.value(0,100) from dual ;
3、指定范围内的整数（0~100）
select trunc(dbms_random.value(0,100)) from dual ;

4、指定长]]></description><category></category></item><item><title><![CDATA[log4j简单示例]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/17451503</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/17451503</guid><author>tucailing</author><pubDate>Thu, 22 May 2014 15:56:45 +0800</pubDate><description><![CDATA[1.新建一个java project 项目
2.导入log4j的jar包，我用的是log4j-1.2.17.jar
3.新建log4j.properties文件，在src目录下：
内容如下：

log4j.rootLogger=debug,stdout 
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appe]]></description><category></category></item><item><title><![CDATA[jQuery multiselect初始化及默认值修改]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/26592955</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/26592955</guid><author>tucailing</author><pubDate>Thu, 22 May 2014 15:54:25 +0800</pubDate><description><![CDATA[jsp



                         
                              0}">
                                  ${dimScenes.sceneName}]]></description><category></category></item><item><title><![CDATA[eclipse下的tomcat端口被占用]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/23822289</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/23822289</guid><author>tucailing</author><pubDate>Wed, 16 Apr 2014 09:42:43 +0800</pubDate><description><![CDATA[一般的端口]]></description><category></category></item><item><title><![CDATA[WdatePicker日历控件使用方法]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/18089897</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/18089897</guid><author>tucailing</author><pubDate>Fri, 10 Jan 2014 17:54:03 +0800</pubDate><description><![CDATA[1. 跨无限级框架显示
 
无论你把日期控件放在哪里,你都不需要担心会被外层的iframe所遮挡进而影响客户体验,因为My97日期控件是可以跨无限级框架显示的
 
示例2-7 跨无限级框架演示
可无限跨越框架iframe,无论怎么嵌套框架都不必担心了,即使有滚动条也不怕
 
2. 民国年日历和其他特殊日历
 
当年份格式设置为yyy格式时,利用年份差量属性yearOffset(默]]></description><category></category></item><item><title><![CDATA[LinkedHashMap与HashMap]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/17517751</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/17517751</guid><author>tucailing</author><pubDate>Tue, 24 Dec 2013 00:53:41 +0800</pubDate><description><![CDATA[由于自己实践生成假数据，发现用hashmap生成的数据的位置都对不上，key与value不是按照输入的顺序；LinkedHashMap生成的数据与输入的顺序一致。
从网上找了个例子放这，以后方便查看。
 








import
java.util.HashMap; 
import
java.util.Iterator; 
import
java.util.L]]></description><category></category></item><item><title><![CDATA[记录spring的一些注解问题]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/17439755</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/17439755</guid><author>tucailing</author><pubDate>Fri, 20 Dec 2013 13:32:18 +0800</pubDate><description><![CDATA[1.@Autowired的解释
这个注解就是spring可以自动帮你把bean里面引用的对象的setter/getter方法省略，它会自动帮你set/get。


    
      
    

这样你在userService里面要做一个userDao的setter/getter方法。
但如果你用了@Autowired的话，你只需要在UserService的实现类中声明即可。]]></description><category></category></item><item><title><![CDATA[Server Tomcat v6.0 Server at localhost was unable to start within 45 seconds. If the server requires]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/12835869</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/12835869</guid><author>tucailing</author><pubDate>Thu, 17 Oct 2013 13:23:23 +0800</pubDate><description><![CDATA[tomcat启动，报错误日志：Server Tomcat v6.0 Server at localhost was unable to start within 45 seconds. If the server requires more time, try increasing the timeout in the server editor.
双击server下的tomcat，打开tomc]]></description><category></category></item><item><title><![CDATA[搭建hadoop伪分布节点时ssh的设置]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/10528123</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/10528123</guid><author>tucailing</author><pubDate>Thu, 29 Aug 2013 16:28:13 +0800</pubDate><description><![CDATA[目标：ssh localhost 无需键入密码


步骤 ：
前提：确认主机安装ssh  shhd  分别是 ssh客户端和server端
使用hadoop账户
方法一：
ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa

cat ~/.ssh/id_dsa.pub
 >> ~/.ssh/authorized_keys





[r]]></description><category></category></item><item><title><![CDATA[org.eclipse.core.runtime.CoreException: D:\workspace\hadoop-1.1.2\build.xml:83: Execute failed: java]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/10462261</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/10462261</guid><author>tucailing</author><pubDate>Wed, 28 Aug 2013 17:25:45 +0800</pubDate><description><![CDATA[在win7用Ant编译hadoop工程的时候，遇到了一个报错，如下：
　　org.eclipse.core.runtime.CoreException: D:\workspace\hadoop-1.1.2\build.xml:83: Execute failed: java.io.IOException: Cannot run program "sed"
　　打开build.xml文件，找到s]]></description><category></category></item><item><title><![CDATA[hadoop.security.AccessControlRxception:Pression denied user=xxx access=READ_EXECUTE,inode=".staging"]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/10453949</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/10453949</guid><author>tucailing</author><pubDate>Wed, 28 Aug 2013 16:05:15 +0800</pubDate><description><![CDATA[hadoop.security.AccessControlRxception:Pression denied user=xxx access=READ_EXECUTE,inode=".staging" inode="user":hadoop:supergroup:rwxr-xr-x

sulution：added this entry to conf/hdfs-site.xml


df]]></description><category></category></item><item><title><![CDATA[Unknown protocol to name node: org.apache.hadoop.mapred.JobSubmissionProtocol]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/9496011</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/9496011</guid><author>tucailing</author><pubDate>Fri, 26 Jul 2013 14:55:06 +0800</pubDate><description><![CDATA[Cannot connect to the Map/Reduce location: hadoop
java.io.IOException: Unknown protocol to name node: org.apache.hadoop.mapred.JobSubmissionProtocol
at org.apache.hadoop.hdfs.server.namenode.NameNod]]></description><category></category></item><item><title><![CDATA[Permission denied:user=tucailing ,access=READ_EXECUTE inode=".staging":root:supergroup:rwx]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/9495331</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/9495331</guid><author>tucailing</author><pubDate>Fri, 26 Jul 2013 14:11:28 +0800</pubDate><description><![CDATA[记录一下，解决方法是：mapreduce的jobtracker和namenode端口配置错误了]]></description><category></category></item><item><title><![CDATA[Linux学习之旅 (异常Cannot write file to virtual machine. Aborting the file copy operation)]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/9312775</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/9312775</guid><author>tucailing</author><pubDate>Fri, 12 Jul 2013 16:25:12 +0800</pubDate><description><![CDATA[转自：http://hi.baidu.com/xyqqj_lr/item/7012f2e4c64c93255a7cfb5c
在我本地搞了个虚拟机，放了linux5.4的iso文件，系统成功装好。发现装好之后是英文版的，想想之前读书的时候是装中文的版的，于是又想让里面的文字中文显示，百度一下，有了解决方法，安装这个网址（http://zhidao.baidu.com/question/416558]]></description><category></category></item><item><title><![CDATA[pig0.9.2安装与配置]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/9246281</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/9246281</guid><author>tucailing</author><pubDate>Thu, 04 Jul 2013 20:06:11 +0800</pubDate><description><![CDATA[一、下载pig
在http://mirrors.cnnic.cn/apache/pig/上下载
 pig-0.9.2.tar.gz，我的是下载到/usr/local/目录 


二、解压安装pig
打开进入到local目录下，执行
# tar -zxvf pig-0.9.2.tar.gz
解压到pig-0.9.2目录下


三、配置环境变量
# vi /etc/profil]]></description><category></category></item><item><title><![CDATA[DataNode: java.io.IOException: Incompatible namespaceIDs in /dfs/dfs/data: namenode namespaceID = 69]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/9245857</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/9245857</guid><author>tucailing</author><pubDate>Thu, 04 Jul 2013 18:43:22 +0800</pubDate><description><![CDATA[ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: Incompatible namespaceIDs in /dfs/dfs/data: namenode namespaceID = 698802253; datanode namespaceID = 817847838
at org.apach]]></description><category></category></item><item><title><![CDATA[oozie配置sharelib,java.lang.NoClassDefFoundError: org/apache/pig/Main]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/9245791</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/9245791</guid><author>tucailing</author><pubDate>Thu, 04 Jul 2013 18:35:40 +0800</pubDate><description><![CDATA[作为笔记：
sharelib的配置
在用oozie调用pig时，用到sharelib，当时是直接运行的，然后就报错了.
2013-07-03 20:44:48,504  WARN PigActionExecutor:542 - USER[root] GROUP[-] TOKEN[] APP[pig-wf] JOB[0000004-130703183035408-oozie-root-W] A]]></description><category></category></item><item><title><![CDATA[df：查看linux剩余空间大小]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/9245761</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/9245761</guid><author>tucailing</author><pubDate>Thu, 04 Jul 2013 18:25:02 +0800</pubDate><description><![CDATA[[root@localhost conf]# df 
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda2              3960348   3404848    351076  91% /
/dev/sda5             14270000    275044  132]]></description><category></category></item><item><title><![CDATA[FSNamesystem: Not able to place enough replicas, still in need of 1]]></title><link>https://blog.youkuaiyun.com/tucailing/article/details/9245715</link><guid>https://blog.youkuaiyun.com/tucailing/article/details/9245715</guid><author>tucailing</author><pubDate>Thu, 04 Jul 2013 18:20:33 +0800</pubDate><description><![CDATA[2013-07-04 01:21:50,677 WARN org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Not able to place enough replicas, still in need of 1
2013-07-04 01:21:50,677 ERROR org.apache.hadoop.security.UserGr]]></description><category></category></item></channel></rss>