dfeg 发表于 2015-8-9 13:04:51

转:tomcat下查看并发流量

    http://wangxuliangboy.javaeye.com/blog/235081
  如何在WINDOW下配置TOMCAT APR:

  
  APR是什么呢,(Tomcat can use the Apache Portable Runtime to provide superior scalability, performance, and better integration with native server technologies. )
  Windows下的安装配置与使用
1、先去 http://tomcat.heanet.ie/native/ 下载编译好的 tcnative-1.dll 文件
  2、把tcnative-1.dll文件放在Tomcat的bin目录下
  然后启动TOMCAT,如果看到以下信息:
  2008-8-31 17:28:59 org.apache.coyote.http11.Http11AprProtocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2008-8-31 17:28:59 org.apache.coyote.ajp.AjpAprProtocol start]则配置成功
  
  然后你可以用APACHE的AB命令测试下效果.
  ab -n 1000 -c 300 http://localhost:8080/turbine/index.jsp
  
  相关APR的参数配置可以参考以下文档:
  http://tomcat.apache.org/tomcat-5.5-doc/apr.html
  
  
  
  
  如何查看TOMCAT的并发访问量:
  我们进入TOMCAT服务管理页面(http://localhost:8080/manager/status),可以看到下面这段文字
http-8080
  Max threads: 1000 Min spare threads: 0 Max spare threads: 0 Current thread count: 303 Current thread busy: 234 Keeped alive sockets count: 0
Max processing time: 23531 ms Processing time: 29287.717 s Request count: 2980 Error count: 0 Bytes received: 0.00 MB Bytes sent: 12.61 MB
  
  Current thread count: 303这个参数则代表当前TOMCAT的并发访问量
  
  
  
  这是我TOMCAT服务器的配置:
  
  
  
  将TOMCAT日志更改为LOG4J日志输出
  把commons-logging.jar,log4j-1.2.13.jar的两个JAR拷贝到tomcat_home/common/lib下面.
  然后在将log4j.properties拷贝到tomcat_home/common/classes下面
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