1.Porbe介紹
psi-probe用於對Tomcat進行監控，比tomcat的manager強大很多。
2.下載
probe-2.3.3.zip 或者 probe.war
3.將下載好的war包，或者zip文件，放在tomcat的webapp目錄下
4.配置tomcat-users.xml文件
<tomcat-users></tomcat-users>標簽內添加，具體的權限配置，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服務器的注冊用戶，其中有role（角色）、user（用戶）兩種信息
（1）role
Tomcat中保存了一些用戶權限，也就是角色，比如admin、Tomcat等。用戶還可以自定義，通過""來注冊一個角色。它只有rolename一個屬性，通過這個屬性可以把用戶的權限進行分配。
（2）User
這個數據項中包含了諸如用戶名、用戶密碼、用戶權限、用戶說明等數據屬性。
probe有 probeuser、poweruser、poweruserplus、manager（針對不同tomcat版本）等角色，對應可操作的功能如下表：
特別注意一點：表格里面的X表示擁有權限，也就是說，manager的權限是最大的，什么都能操作（不推薦配置）。
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.設置環境變量
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"
或設置環境變量。
6.啟動tomcat，訪問http://localhost:8080/probe/
7.probe使用介紹
Applecations：tomcat上面正在跑的應用，可以看到每個應用的狀態、請求數、session數等，點進去可以查看詳細信息
Data Sources：tomcat的數據源，我這里沒有配置數據源
Deployment：代碼部署，選擇一個war並部署。我這邊沒用這個東西來部署過代碼，用腳本來實現
Logs：tomcat日志
Threads：tomcat線程，可以查看線程的狀態等信息，還可以殺死線程
Cluster：tomcat集群
System Information：系統信息
Connectors：connector信息，可以看到每秒的請求數、響應時間等
Quick check：快速檢測tomcat的數據源、內存等
參考：http://blog.csdn.net/fbysss/article/details/6221917，http://blog.csdn.net/chengguoyong/article/details/39048015