nGrinder性能测试平台搭建(LVS压力测试)

1、 nGrinder是什么
nGrinder是一个免费的、开放源代码的Web性能测试平台。运行在应用中间件服务器中运行。它由一个控制端和多个代理端组成。通过控制端（浏览器访问）建立测试场景，然后通过分发到代理端进行压力测试，是一个分布式的测试场景。
测试过程是基于Jython脚本来模拟浏览器或其他终端使用HTTP协议访问站点来完成的。测试过程中采集的数据将通过动态图和数据表的形式展示出来。用户可以方便的看到tps、以及测试目标机器的cpu和内存等情况。
  nGrinder依赖的其他开源项目：
 Grinder一个开源的Java负载测试框架，它通过很多负载注射器来为分布式测试提供了便利。支持用于执行测试脚本的Jython脚本引擎。
  Cubrid是一个全面开源，且完全免费的关系数据库管理系统。CUBRID为高效执行Web应用进行了高度优化，特别是需要处理大数据量和高并发请求的复杂商务服务。通过提供独特的最优化特性，CUBRID可以支持更多的并发请求，更少的响应时间。
  Jython是一种完整的语言，而不是一个Java翻译器或仅仅是一个Python编译器，它是一个Python语言在Java中的完全实现。 Jython也有很多从CPython中继承的模块库。最有趣的事情是Jython不像CPython或其他任何高级语言，它提供了对其实现语言的一切存取。所以Jython不仅给你提供了Python的库，同时也提供了所有的Java类。这使其有一个巨大的资源库。
  Spring是一个开源框架，是为了解决企业应用程序开发复杂性由Rod Johnson创建的。框架的主要优势之一就是其分层架构，分层架构允许使用者选择使用哪一个组件，同时为 J2EE 应用程序开发提供集成的框架。Spring使用基本的JavaBean来完成以前只可能由EJB完成的事情。然而，Spring的用途不仅限于服务器端的开发。从简单性、可测试性和松耦合的角度而言，任何　　Java应用都可以从Spring中受益。
　　2、 windows平台的nGrinder配置
　　2.1 前提条件
　　nGrinder下在：http://sourceforge.net/projects/ngrinder/files/ngrinder-3.2.3/。本次演示使用了tomcat因此需要下载ngrinder-controller-3.2.3-with-tomcat.zip和ngrinder-core-3.2.3-agent-package.zip。
　　jdk1.6：下载地址http://www.java.net/download/jdk6/6u10/promoted
/b32/binaries/jdk-6u10-rc2-bin-b32-windows-i586-p-12_sep_2008.exe
　　tomcat 6 下载地址：http://tomcat.apache.org/

　　2.2 配置控制端
　　安装jkd1.6和tomcat 在这就不再累述，配置JAVA_HOME和JRE_HOME，放到系统环境变量的最前面。然后将ngrinder-controller-3.2.3- with-tomcat.zip加压缩后，放入webapps文件夹下，运行该文件夹下的 startup.bat。将如下图启动成功：

　　在浏览器中输入http://localhost:8080/ ngrinder-controller ，进入登录页面，输入用户名密码（用户名admin，密码admin），进入系统，点击右上角admin下拉菜单，选择系统配置，如下图所示：

修改配置如下：

# Set verbose to print the detailed log

#verbose=true

# testmode makes some several constraints not applied.

# if testmode is true, security and pluginsupport is disabled.

#testmode=false

# true if enabling security manager. The default value is false

#security=true

# false if disabling ngrinder usage report. it will send host ip and executed tests number to Goolge Analytics.

# The default value is true

#usage.report=false

# true if the plugin is enabled.

# This is not the option applied on the fly. You need to restart the controller.

#pluginsupport=true

# false if you want to make the user profile fields not mandatory.

# Default value is true.

#user.security=false

# the maximum number of agents which can be attached into one test.

#agent.max.size=10

# the maximum number of vusers which can be initiated per one agent

#agent.max.vuser=2000

# the maximum runcount of test per one agent

#agent.max.runcount=10000

# the maximum running hour of one test.

#agent.max.runhour=8

# the listener port of monitor.

monitor.listen.port=13243

#provide the base URL of the ngrinder.

#ngrinder.http.url=

# the starting port number of consoles which will be mapped to each test.

# This is not the option applied on the fly. You need to reboot to apply this.

#ngrinder.console.portbase=12000

# the port number for the agent connection.

ngrinder.agent.control.port=8088

# The count of allowed concurrent tests.

#ngrinder.max.concurrenttest=10

# How many milliseconds console will wait until all agents are connected.

#ngrinder.max.waitingmilliseconds=5000

# select the ip for controller to use.

ngrinder.controller.ipaddress=192.168.68.134

# validation timeout in the unit of sec.

#ngrinder.validation.timeout=100

# To be compatible with old agents (before 3.1.1), please set following to true.

# If you use the latest version agent, just set it false.

ngrinder.dist.logback=false

# From 3.1.1, nGrinder doesn't check the file distribution result to speed up the test execution.

# If your agent is located in the far places or you distribute big files everyday, you'd better to change this to true.

ngrinder.dist.safe=false

# If some region has the slow network, it may need the safe distribution by force

#ngrinder.dist.safe.region=

# Set the safe distribution threshold to enable safe distribution for specific transfer size by force.

# ngrinder.dist.safe.threshold=1000000

# You can point your own rss page on the ngrinder first page.

#ngrinder.frontpage.rss=http://www.cubrid.org/wiki_ngrinder/rss

# If you want to provide your own custom help page. please modify this

#ngrinder.help.url=http://www.cubrid.org/wiki_ngrinder/entry/user-guide

# language default en/kr/cn is available.

#ngrinder.langauge.default=en

# The monitor port is configurable. The default port is 13243.

#monitor.listen.port=13243

######################################################################################

# clustering configuration.

# This is not the option applied on the fly. You need to reboot to apply this.

######################################################################################

# These should be very carefully set.

# You can refer http://www.cubrid.org/wiki_ngrinder/entry/controller-clustering-guide

# if you want to enable ngrinder controller clustering. please enable below.

#ngrinder.cluster.mode=false

# cache cluster uri of all clustered controller servers.

#ngrinder.cluster.uris=192.168.1.1;192.168.2.2;192.168.3.3

# cache cluster listener port.

#ngrinder.cluster.listener.port=40003

# region setting of this controller.

# When running ngrinder as cluster mode, the ${NGRINDER_HOME} should be shared by multiple controllers.

# We expect this to be done by running ${NGRINDER_HOME} on NFS.

# However this option is not to set here. Because each controller in cluster must have system-ex.conf

# which should be stored in ${NGRINDER_EX_HOME} in the local so that each node cluster looks different value.

# Please locate followings this on the ${NGRINDER_EX_HOME}(by default .ngrinder_ex)/system-ex.conf

# ngrinder.cluster.region=Beijing

　　2.3 配置代理端
　　将ngrinder-core-3.2.3-agent-package.zip解压，建立环境变量NGRINDER_AGENT_HOME，变量值为C:\DOCUME~1\ADMINI~1\.grinder_agent。
运行代理文件夹下的startuo.bat后，进入C:\Documents and Settings\Administrator\.ngrinder_agent，修改agent.conf如下：

#start.mode=monitor

#monitor.listen.port=13243

# If you want to monitor bind to the different local ip not automatically selected ip. Specify below field.

#monitor.host=hostname_or_ip

start.mode=agent

agent.console.ip=192.168.68.134

agent.console.port=8088

#agent.region=

#agent.hostid=

#agent.servermode=true

# provide more agent java execution option if necessary.

#agent.javaopt=

# set following false if you want to use more than 1G Xmx memory per a agent process.

#agent.useXmxLimit=true

#agent.same.console.host=true

# please uncomment the following option if you want to send all logs to the controller.

#agent.send.all.logs=true

其中agent.console.ip为控制端ip，agent.console.port为控制端监听端口。
　　3、应用
　　启动nGrinder控制端和代理端，通过http://localhost:8080/ ngrinder-controller 进入登录页输入用户名密码，进入nGrinder平台。在快速测试的url地址框中输入www.cstc.org.cn，点击开始测试。进入如下页面：