MySQL专家组
百度MySql DBA --- 吴诗展
搜狐DBA
搜狐DBA --- 叶金荣 mysql专家组(http://mysqlmeg.cn)
网易DBA
网易DBA --- 翟振兴
阿里巴巴DBA
阿里巴巴首席DBA --- 冯春培
淘宝DBA
淘宝首席DBA --- 陈吉平
支付宝DBA
支付宝(中国) DBA--- 冯大辉网站架构 性能优化 技术评论
I Care About Software
I Care About SoftwareI believe that the software I help to create defines me as a professional, and speaks volumes about my commitment to software development.· I care that the software I help to create is useful and usable· I care that the software I help to create is simple and elegant· I care that the software I help to create is reliable and robust· I care that the software I help to create is responsive and scalable· I care that the software I he
Oracle - Tables/Indexes
Oracle - Tables/IndexesHere are some scripts related to Tables/Indexes .Tabs w/ Questionable IndsTABLES WITH QUESTIONABLE INDEX(ES) NOTES:Owner - Owner of the table Table Name - Name of the table Column - Name of the column in question The above query shows all tables that have more than one index with the same leading column. These indexes can cause queries to use an inappropriate indexes; in other words, Oracle will use the index that was created most recently if two indexes are of equal ranki
Oracle - Hit/Miss Ratios
Oracle - Hit/Miss RatiosHere are some scripts related to Hit/Miss Ratios .Buffer Hit RatioBUFFER HIT RATIO NOTES:Consistent Gets - The number of accesses made to the block buffer to retrieve data in a consistent mode. DB Blk Gets - The number of blocks accessed via single block gets (i.e. not through the consistent get mechanism). Physical Reads - The cumulative number of blocks read from disk. Logical reads are the sum of consistent gets and db block gets. The db block gets statistic value is i
Weblogic 只允许能连接5个IP的解决办法
Weblogic 只允许能连接5个IP的解决办法0. Weblogic试用版只允许连接5个不同IP, 尽管可重新启动weblogic server可以重新获取5个IP, 对于开发测试环境来说, 对于开发测试来说很不方便, 也不可能购买Weblogic的licences.1. shell scripts & Java commandlocal_port: 12345host: ydc062remote_port: 8080java -classpath ./Relay.jar Relay 12345 ydc062 8080 2. 使用方法http://ydc062:8080(limit 5 ip)http://ydc062:12345(not limit forward to above access)3. Java source code/*** DataRelay.java*/import java.io.InputStream;impo
The value for the useBean class attribute SecurityOrgPages is invalid. in tomcat 5.5
Aproject work fine in tomcat 4.1, but upgrade apache-tomcat-4.1.34/jdk 1.4 to apache-tomcat-5.5.25, jdk 1.5, ecounter the following error.type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException: /jsp/security/securityOrgPages.jsp(4,0) The value for the useBean class attribute SecurityOrgPages is invalid.org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler
Coding your second Jakarta Struts Application
Coding your second Jakarta Struts Applicationhttp://javaboutique.internet.com/tutorials/Struts2/IntroductionDid the title of the article make you curious? If this is the second application then what was the first one? The answer is, the first application was presented in my previous article about Jakarta Struts, "Stepping through Jakarta Struts". Here I showed you: how to download and install Struts the directory structure of a Struts application how to create the first pieces of a new
The Power of Three - Eclipse, Tomcat, and Struts
Java(TM) Boutique - The Power of Three - Eclipse, Tomcat, and StrutsIntroduction As a programmer it's important to be productive, and as any other craftsman you need good tools to be productive. In this article I'll present a set of tools, which can really help you get your job done. What's more, they're all free, open source, and well documented. I've been using these tools in several real-life projects and have found that they often outdo expensive development tools. This is because they're si
Test Generation framework
JUnit FactoryAn experimental test-generation service from AgitarLabs, the research division of Agitar Software. JUnit Factory is a 2008 Jolt Productivity Award Winner!http://www.junitfactory.comhttp://www.junitfactory.com/articles/Introducing Crap4J There is no fool-proof, 100% accurate and objective way to determine if a particular piece of code is crappy or not. However, our intuition – backed by research and empirical evidence – is that unnecessarily complex and convoluted code, written by
认识p-unit:一款开源的性能测试框架
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QA and Testing Interview Questions
When interviewing for a QA or Testing position, it's important to be honest. Hiring managers want to know what you know, what you can do, and what you are like. And nobody wants to hire a liar.As a hiring manager, I can tell if you are stretching the truth - particularly if you are just repeating simple definitions to complex concepts. If you are asked about QA or Testing terms that aren't familar to you, tell the interviewer that you haven't heard of those terms, then ask what they mean. Sinc
测试资源收藏
http://www.developertesting.com/Developer Testing, Discussions about Software Qualityhttp://www.junitfactory.com/JUnit Factory is a 2008 Jolt Productivity Award Winner!http://chinasoftesting.googlepages.com/home测试之家(测试工具, 测试资料, 软件测试, 配置管理, 过程管理, 资料下载)[@more@]
WinRunner - As a GUI based load testing tool
We use WinRunner as a load testing tool operating at the GUI layer as it allows us to record and playback user actions from a vast variety of user applications as if a real user had manually executed those actions. We use WinRunner in addition to LoadRunner when we want to record user experience response time. Visit mercuryinteractive.com/products/WinRunner/ for detailed information on WinRunner.http://www.loadtest.com.au/Technology/winrunner.htmThe following diagram shows how a GUI layer testin
Standard WinRunner Functions
This helps me select functions quickly by type of object and then by purpose. Add the function prefix to the suffixes inside each cell. I am working now to create sample scripts that demo these functions in use.http://www.wilsonmar.com/1wrfuncs.htmTopics this page: OS Functions File Functions COM Functions Window Functions Text Controls Navigation Controls Special Controls String Functions CSO Libraries Custom Controls Function Libraries Generic Custom Functions Naming Conventions Your comments
J2EE性能问题的诊断示例
J2EE性能问题的诊断示例http://www.innovatedigital.com/htm_speek/Diagnose_J2EE3.shtml[@more@]