<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[windyforest的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/windyforest</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; windyforest]]></copyright><item><title><![CDATA[利用归并排序算法对大文件进行排序]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84698129</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84698129</guid><author>windyforest</author><pubDate>Sun, 25 Jan 2015 20:59:43 +0800</pubDate><description><![CDATA[
 
归并排序算法介绍，请参照Wikipeida
zh.wikipedia.org/wiki/%E5%BD%92%E5%B9%B6%E6%8E%92%E5%BA%8F
基本思想：
大文件分割成行数相等的两个子文件，递归（归并排序）两个子文件，直到递归到分割成的子文件低于限制行数
低于限制行数的子文件直接排序
两个排序好的子文件归并到父文件
直到最后所有排序好的父文件归并到输入的大文...]]></description><category></category></item><item><title><![CDATA[VMware Workstation 11 或者 VMware Player 7安装MAC OS X 10.10 Yosemite]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84691321</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84691321</guid><author>windyforest</author><pubDate>Mon, 15 Dec 2014 20:26:32 +0800</pubDate><description><![CDATA[
最近尝试了下VMware下安装MacOS 系统，
安装过程中发现网上可供参考的文章都是VMware Workstation 10以下， MacOS X 10.9以下的文章，
只能提供大概的思路， 但是实际安装起来由于版本问题， 走了不少弯路， 所以我尝试写以下总结， 希望能给有兴趣安装OSX的人提供一点帮助。
 
 
写在前面的话：
其实安装好后发现， 由于我的thinkpad实在...]]></description><category></category></item><item><title><![CDATA[openldap configuration leaning note]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84676848</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84676848</guid><author>windyforest</author><pubDate>Tue, 21 Oct 2014 01:04:45 +0800</pubDate><description><![CDATA[
hostname // to display the computer name
hostname &amp;lt;changed name&amp;gt; // to change
go to: /etc/sysconfig/network, add/modify HOSTNAME=NEWNAME to change permenately
dont forget to change /etc/host...]]></description><category></category></item><item><title><![CDATA[try-catch影响性能吗?]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84613060</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84613060</guid><author>windyforest</author><pubDate>Wed, 09 Jul 2014 17:06:40 +0800</pubDate><description><![CDATA[
try-catch会影响性能吗? try-catch放在循环块里面比放在外面程序运行会慢吗?
看到论坛上有人对try-catch对性能的影响存在疑问,比如:
http://www.iteye.com/topic/1127950
很多想当然的答案是: try-catch放在循环块里面肯定比放在循环块外面慢.
但是, 这个想当然的答案是错误的.
 
加了try-catch块的代码跟没有...]]></description><category></category></item><item><title><![CDATA[mysql 5.6 配置文件]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84605830</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84605830</guid><author>windyforest</author><pubDate>Thu, 12 Jun 2014 11:56:07 +0800</pubDate><description><![CDATA[
 
#mysql 5.6 版本的配置改变了很多, 许多参数都不能用了, 有些参数的设定也改变了, 以下是我根据自己机器配置调好的, 注意如果内存比较小的话还是尽量减小内存配置的参数吧,下面的配置已经耗去600M多了
#mysql 5.6 的系统变量说明在这里:
# http://dev.mysql.com/doc/refman/5.6/en/server-system-variables...]]></description><category></category></item><item><title><![CDATA[Stevey's Google Platforms Rant]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84605704</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84605704</guid><author>windyforest</author><pubDate>Wed, 11 Jun 2014 21:34:49 +0800</pubDate><description><![CDATA[
from: https://plus.google.com/+RipRowan/posts/eVeouesvaVX
comments by Ivar: The post was intended to be shared privately and was accidentally made public. It's the sort of writing people do when th...]]></description><category></category></item><item><title><![CDATA[find my.cnf config file for mysql sever in linux]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84605570</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84605570</guid><author>windyforest</author><pubDate>Wed, 11 Jun 2014 13:26:03 +0800</pubDate><description><![CDATA[
Some times, it is diffcult to find the exact location of my.cnf file on linux,
using the following command we can find the diffault locations which are used by mysql server to locate its configurat...]]></description><category></category></item><item><title><![CDATA[Install Postgresql9.3 on CentOS]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84605452</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84605452</guid><author>windyforest</author><pubDate>Tue, 10 Jun 2014 23:21:30 +0800</pubDate><description><![CDATA[
Install Postgresql Server 9.3
 
first, we need to add official postgresql repository for yum:
sudo yum install http://yum.postgresql.org/9.3/redhat/rhel-6-x86_64/pgdg-redhat93-9.3-1.noarch.rpm
s...]]></description><category></category></item><item><title><![CDATA[Quartz Scheduler Learning Note]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84605373</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84605373</guid><author>windyforest</author><pubDate>Tue, 10 Jun 2014 16:33:09 +0800</pubDate><description><![CDATA[
Quartz Scheduler Learning Note
 
Quartz is a convenient tool for task scheduling.
Key Interfaces
To use quartz, the following interfaces should be included:
 


Scheduler - the main API for in...]]></description><category></category></item><item><title><![CDATA[glassfish 证书过期错误SEVERE: SEC5054: Certificate has expired:]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84604536</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84604536</guid><author>windyforest</author><pubDate>Fri, 06 Jun 2014 13:56:23 +0800</pubDate><description><![CDATA[
from: http://www.adam-bien.com/roller/abien/entry/how_to_fix_expired_certificateThe following error: com.sun.enterprise.security.ssl.impl.SecuritySupportImpl checkCertificateDatesSEVERE: SEC5054: Ce...]]></description><category></category></item><item><title><![CDATA[h2全文检索]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84604519</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84604519</guid><author>windyforest</author><pubDate>Fri, 06 Jun 2014 13:06:35 +0800</pubDate><description><![CDATA[
 
使用自身提供的全文检索
 
初始化需要用:
 
CREATE ALIAS IF NOT EXISTS FT_INIT FOR &quot;org.h2.fulltext.FullText.init&quot;;

CALL FT_INIT();
 
 
 
你需要你想用它来初始化它在每个数据库中。之后，您可以创建全文索引的表使用：
 
 
CREATE TABLE TEST(ID I...]]></description><category></category></item><item><title><![CDATA[windows下做压力测试的注册表设置]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84604119</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84604119</guid><author>windyforest</author><pubDate>Wed, 04 Jun 2014 23:11:18 +0800</pubDate><description><![CDATA[
from: http://www.cnblogs.com/tianzhiliang/articles/2400176.htmlTcpTimedWaitDelay描述：确 定 TCP/IP 在释放已关闭的连接并再次使用其资源前必须经过的时间。关闭与释放之间的这段时间称为 TIME_WAIT 状态或者两倍最大段生存期（2MSL）状态。此时间期间，重新打开到客户机和服务器的连接的成本少于建立新连接。通...]]></description><category></category></item><item><title><![CDATA[MyBatis(3.2.7)的缺点]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84601128</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84601128</guid><author>windyforest</author><pubDate>Thu, 22 May 2014 10:52:23 +0800</pubDate><description><![CDATA[
以下是我用MyBatis感觉不爽的地方, 当然也有可能是我不够了解, 如果有错误, 请指正
 

不同命名空间的&amp;lt;resultMap&amp;gt;&amp;lt;sql&amp;gt;等声明不能共享
默认注册(org.apache.ibatis.type.TypeAliasRegistry)的类型别名太少, 比如想用Set但是没有注册
Configuraton XML默认不支持第三方Datasourc...]]></description><category></category></item><item><title><![CDATA[MyBatis在非Spring环境下第三方DataSource设置]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84601112</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84601112</guid><author>windyforest</author><pubDate>Thu, 22 May 2014 10:17:18 +0800</pubDate><description><![CDATA[
Spring环境下, MyBatis可以通过其本身的增强mybatis-spring提供的org.mybatis.spring.SqlSessionFactoryBean来注入第三方DataSource.
 
但是在非Spring的环境下, MyBatis的加载需要配置其自身的configuration xml文件,
代码段可能是下面这样的:
 
&amp;lt;environments d...]]></description><category></category></item><item><title><![CDATA[MySQL and Postgres command equivalents (mysql vs psql) ]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84599532</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84599532</guid><author>windyforest</author><pubDate>Fri, 16 May 2014 12:41:19 +0800</pubDate><description><![CDATA[
From: http://blog.endpoint.com/2009/12/mysql-and-postgres-command-equivalents.html
Posted by   Greg Sabino Mullane   |December 24, 2009
 
 
Users toggling between MySQL and Postgres are often co...]]></description><category></category></item><item><title><![CDATA[PostgreSQL与MySQL比较]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84599387</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84599387</guid><author>windyforest</author><pubDate>Thu, 15 May 2014 19:55:29 +0800</pubDate><description><![CDATA[
from: http://bbs.chinaunix.net/thread-1688208-1-1.html

 
 


特性
MySQL
PostgreSQL


实例
通过执行 MySQL 命令（mysqld）启动实例。一个实例可以管理一个或多个数据库。一台服务器可以运行多个 mysqld 实例。一个实例管理器可以监视 mysqld 的各个实例。

 通过执行 Post...]]></description><category></category></item><item><title><![CDATA[DruidDataSource配置属性列表 ]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84598863</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84598863</guid><author>windyforest</author><pubDate>Wed, 14 May 2014 09:44:29 +0800</pubDate><description><![CDATA[
from: https://github.com/alibaba/druid/wiki/DruidDataSource%E9%85%8D%E7%BD%AE%E5%B1%9E%E6%80%A7%E5%88%97%E8%A1%A8
 
DruidDataSource配置兼容DBCP，但个别配置的语意有所区别。


配置
缺省值
说明


name
 
配置这个属性的意义在于，如果存在...]]></description><category></category></item><item><title><![CDATA[Java collections overview]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84539679</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84539679</guid><author>windyforest</author><pubDate>Fri, 21 Mar 2014 10:37:34 +0800</pubDate><description><![CDATA[
Fromp: http://java-performance.info/java-collections-overview/
by Mikhail Vorontsov
 
This article will give you an overview of all standard Java collections. We will categorize their distinguisha...]]></description><category></category></item><item><title><![CDATA[MongoDB应用场景]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84534920</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84534920</guid><author>windyforest</author><pubDate>Fri, 07 Mar 2014 13:38:19 +0800</pubDate><description><![CDATA[
 
 
你期望一个更高的写负载
默认情况下，对比事务安全，MongoDB更关注高的插入速度。如果你需要加载大量低价值的业务数据，那么MongoDB将很适合你的用例。但是必须避免在要求高事务安全的情景下使用MongoDB，比如一个1000万美元的交易。
不可靠环境保证高可用性
设置副本集（主-从服务器设置）不仅方便而且很快，此外，使用MongoDB还可以快速、安全及自动化的实现节点（或...]]></description><category></category></item><item><title><![CDATA[JAX-RPC 与 JAX-WS 的比较]]></title><link>https://blog.youkuaiyun.com/windyforest/article/details/84533213</link><guid>https://blog.youkuaiyun.com/windyforest/article/details/84533213</guid><author>windyforest</author><pubDate>Mon, 03 Mar 2014 12:21:09 +0800</pubDate><description><![CDATA[
from: http://www.ibm.com/developerworks/cn/webservices/ws-tip-jaxwsrpc.html
 
引言
Web 服务已经出现很久了。首先是 SOAP，但 SOAP 仅描述消息的情况，然后是 WSDL，WSDL 并不会告诉您如何使用 Java™ 编写 Web 服务。在这种情况下，JAX-RPC 1.0 应运而生。经过数月使用之后，编...]]></description><category></category></item></channel></rss>