1.Porbe介绍
psi-probe用于对Tomcat进行监控，比tomcat的manager强大很多。
2.下载
probe-2.3.3.zip 或者 probe.war
3.将下载好的war包，或者zip文件，放在tomcat的webapp目录下
4.配置tomcat-users.xml文件
<tomcat-users></tomcat-users>标签内添加，具体的权限配置，查看下面表格
<role rolename="manager"/>
<role rolename="poweruser"/>
<role rolename="tomcat"/>
<role rolename="poweruserplus"/>
<role rolename="probeuser"/>
<user username="tomcat"password="tomcat"roles="manager,poweruser,probeuser,poweruserplus" />
注：tomcat-users.xm包含了所有Tomcat服务器的注册用户，其中有role（角色）、user（用户）两种信息
（1）role
Tomcat中保存了一些用户权限，也就是角色，比如admin、Tomcat等。用户还可以自定义，通过""来注册一个角色。它只有rolename一个属性，通过这个属性可以把用户的权限进行分配。
（2）User
这个数据项中包含了诸如用户名、用户密码、用户权限、用户说明等数据属性。
probe有 probeuser、poweruser、poweruserplus、manager（针对不同tomcat版本）等角色，对应可操作的功能如下表：
特别注意一点：表格里面的X表示拥有权限，也就是说，manager的权限是最大的，什么都能操作（不推荐配置）。
Features by Role
| probeuser | poweruser | poweruserplus | manager | |
| Context: list | X | X | X | X |
| Context: status | X | X | X | X |
| Context: view servlets | X | X | X | X |
| Context: view servlet mappings | X | X | X | X |
| Context: view filters | X | X | X | X |
| Context: view filter mappings | X | X | X | X |
| Context: list attributes | X | X | X | X |
| Context: remove attributes | X | X | X | |
| Context: start | X | X | X | |
| Context: stop | X | X | X | |
| Context: view web.xml | X | X | X | |
| Context: view context.xml | X | |||
| Context: deploy | X | |||
| Context: undeploy | X | |||
| Session: list | X | X | X | X |
| Session: list attributes | X | X | X | X |
| Session: search attributes | X | X | X | X |
| Session: remove attributes | X | X | X | |
| Session: view last-accessed IP | X | X | X | X |
| Session: expire single | X | X | X | |
| Session: expire multiple | X | X | X | |
| JSP: list | X | X | X | |
| JSP: view source | X | X | X | |
| JSP: view servlet source | X | X | X | |
| JSP: compile single | X | X | X | |
| JSP: compile multiple | X | X | X | |
| JSP: compile all on deployment | X | |||
| JSP: discard all compiled | X | |||
| Data Source: list | X | X | X | X |
| Data Source: group by JDBC URL | X | X | X | X |
| Data Source: status | X | X | X | X |
| Data Source: reset | X | X | X | |
| Data Source: test | X | X | ||
| Data Source: view query history | X | X | ||
| Data Source: execute SQL | X | X | ||
| Log: list | X | X | X | X |
| Log: tail in real-time | X | X | X | X |
| Log: download | X | X | X | X |
| Thread: list | X | X | X | X |
| Thread: view execution stack | X | X | X | |
| Thread: kill | X | |||
| Connector: status | X | X | X | X |
| Connector: real-time usage charts | X | X | X | X |
| Cluster: status | X | X | X | X |
| Cluster: real-time traffic charts | X | X | X | X |
| JVM: real-time memory usage charts | X | X | X | X |
| JVM: status | X | X | X | X |
| JVM: advise GC | X | |||
| Java Service Wrapper: status | X | X | X | X |
| Java Service Wrapper: restart JVM | X | |||
| System: overview | X | X | X | X |
| System: properties | X | X | X | X |
| System: OS details | X | |||
| Quick Check: execute | X |
5.设置环境变量
修改conf/catalina.bat(for win)
set JAVA_OPTS=-Dcom.sun.management.jmxremote
或修改conf/catalina.sh(for linux)
export JAVA_OPTS=$JAVA_OPTS" -Dcom.sun.management.jmxremote"
或设置环境变量。
6.启动tomcat，访问http://localhost:8080/probe/
7.probe使用介绍
Applecations：tomcat上面正在跑的应用，可以看到每个应用的状态、请求数、session数等，点进去可以查看详细信息
Data Sources：tomcat的数据源，我这里没有配置数据源
Deployment：代码部署，选择一个war并部署。我这边没用这个东西来部署过代码，用脚本来实现
Logs：tomcat日志
Threads：tomcat线程，可以查看线程的状态等信息，还可以杀死线程
Cluster：tomcat集群
System Information：系统信息
Connectors：connector信息，可以看到每秒的请求数、响应时间等
Quick check：快速检测tomcat的数据源、内存等
参考：http://blog.csdn.net/fbysss/article/details/6221917，http://blog.csdn.net/chengguoyong/article/details/39048015