用LoadRunner 函数监控Tomcat

转自【http://se.csai.cn/testtools/200812240908031253.htm

LoadRunenr没有监控Tomcat的专用监控器,为了用lr达到监控tomcat的目的可以通过打开Tomcat自带的Status页面之后,利用lr的关联技术得到相关的数据,把数据输出到lr自定义的监控器中。

 1、打开Tomcat的status页面,方法为编辑Tomcat的conf目录下的tomcat-users.xml文件,在文件中添加

<tomcat-users>
  <role rolename="manager"/>
  <user username="admin" password="pass" roles="manager"/>
</tomcat-users>

 2、开发lr脚本

lr_start_transaction("monitor tomcat");
 
web_reg_save_param("JVMFreeMemory",
     "LB=Free memory: ",
     "RB= MB",
     "Ord=1",
   LAST);
  
web_reg_save_param("JVMTotalMemory",
   "LB=Total memory: ",
   "RB= MB",
   "Ord=1",
   LAST);
 
    web_reg_save_param("JVMMaxMemory",
     "LB=Max memory: ",
     "RB= MB",
     "Ord=1",
    LAST);
 
    web_url("status",
        "URL=http://{ServerName}/manager/status",
        "Resource=0",
        "RecContentType=text/html",
        "Referer=",
        "Snapshot=t1.inf",
        "Mode=HTTP",
    LAST);
 
   lr_end_transaction("monitor tomcat", LR_AUTO);
 
// Tomcat JVM metrics
  lr_user_data_point("Tomcat JVM Free memory", atof(lr_eval_string("{JVMFreeMemory}")));
  lr_user_data_point("Tomcat JVM Total memory", atof(lr_eval_string("{JVMTotalMemory}")));
   lr_user_data_point("Tomcat JVM Max memory", atof(lr_eval_string("{JVMMaxMemory}")));

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