Windows客户端的JProfiler远程监控Linux上的Tomcat
1.测试环境服务器：RedHat Linux 3.4.3-9.EL4（内核版本 2.6.9-5.EL），Tomcat5.5.20，Sun JDK1.5.0_09，JProfiler 4.3.2 for linux（安装包：jprofiler_linux_4_3_2.sh）
客户端：Windows XP，JProfiler 4.3.2 for windows（安装包：jprofiler_windows_4_3_2.exe）
2.JProfiler软件下载地址 http://www.ej-technologies.com/
3.客户端 JProfiler 安装 略
4.服务器端 JProfiler 安装：
把 jprofiler_linux_4.3.2.sh 上传到到服务器，假设路径为 /opt/jprofiler
# cd /opt/jprofiler
# chmod +x *.sh
# ./jprofiler_linux_4.3.2.sh -c
按照提示来安装，提示都很简单，不在多说。安装路径选择 /opt/jprofiler4
注意，这里的 -c 意思是用字符方式来安装，如果机器上没有 X 则加上该参数.
5.客户端连接配置
1). 运行 JProfiler 。第一次打开会有向导，忽略它。
2). 选择 Session->Integration Wizard->New Remote Integratation
3). 选择 On a remote computer；Platform of remote computer 选择 Linux x86/AMD 64；Next
4). 输入服务器 IP ；Next
5). 输入服务器上的 jprofiler 的安装路径，如 /opt/jprofiler4 ；next
6). 选择服务器的 JDK 环境，这里是：Sun，1.5.0，hotspot；next
7). 输入端口：这里是默认值 8849；next
8). 选择启动模式：这里选第一种 wait for a connection from the jprofiler GUI；next
9). 这里会列出需要在服务器端做的配置:
Integration type: Selected JVM: Sun
1.5.0 (hotspot) Startup mode: Wait
for JProfiler GUI (
1) Please insert-agentlib:jprofilerti=port=8849-Xbootclasspath/a:/opt/jprofiler4/bin/agent.jar into the start command of your remote application right after the java command.
(
2) Please add/opt/jprofiler4/bin/linux-x86 to the environment variable LD_LIBRARY_PATH.
A remote session named Remote application on
192.168.40.15 will be created that connects to a running instance of the remote application that is started with the modified start command.
6.服务器端的配置
(1)修改系统环境配置文件 /etc/profile ,增加
JPROFILER_HOME=/opt/jprofiler4/bin/linux-x86 export LD_LIBRARY_PATH
=$LD_LIBRARY_PATH:$JPROFILER_HOME (2)修改TOMCAT启动文件catalina.sh，添加-agentlib:jprofilerti=port=8849-Xbootclasspath/a:/opt/jprofiler4/bin/agent.jar 内容到CATALINA_OPTS中；
“-agentlib:jprofilerti=port=8849-Xbootclasspath/a:/opt/jprofiler4/bin/agent.jar ” 此内容由客户端软件生成
CATALINA_OPTS="$CATALINA_OPTS -Xms128m -Xmx128m $JPDA_OPTS -agentlib:jprofilerti=port=8849-Xbootclasspath/a:/opt/jprofiler4/bin/agent.jar" 7.Reboot Linux and startup Tomcat using startup.sh;
The log of tomcat which is $CATALINA_HOME/logs/catalina.out will show:
JProfiler> Protocol version 23 JProfiler
> Using JVMTI JProfiler
> 32-bit library JProfiler
> Listening on port: 8849. JProfiler
> Native library initialized JProfiler
> Waiting for a connection from theJProfiler GUI http://www.blogjava.net/Images/dot.gif 8.启动客户端软件
点击jprofiler菜单 session>start center>Open Session
Available session configurations中列出了刚才配置的连接，选中使用就OK了！！
9.The log of tomcat which is $CATALINA_HOME/logs/catalina.out will show:
JProfiler> Using dynamic instrumentation JProfiler
> Time measurement: elapsed time JProfiler
> CPU profiling enabled JProfiler
> Hotspot compiler enabled JProfiler
> Starting org/apache/catalina/startup/Bootstrap http://www.blogjava.net/Images/dot.gif 10.当中断JProfiler连接时
The log of tomcat which is $CATALINA_HOME/logs/catalina.out will show:
JProfiler> Disconnected. Waiting for reconnection. JProfiler
> Listening on port: 8849.
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