监控应用服务器使用JMX监控Tomcat (推荐)
2015-10-21 17:21
701 查看
前言:做了一个监控应用服务器的项目(支持Tocmat、WebSphere、WebLogic各版本),
过程也算是磕磕绊绊,由于网上缺少相关资料,或者深陷于知识的海洋难以寻觅到有效的资料,因而走过不少弯路,遇过不少困难。为了留下点印记,给后来人留下
点经验之谈,助之少走弯路,故将这些经验整理出来,与大家分享。水平有限,难免疏漏,还望指正。如有疑问,欢迎留言,或者加入Q群参与讨
论:35526521。
一、激活Tomcat的JMX远程配置
要通过JMX远程监控Tomcat,首先需要激活Tomcat的JMX远程配置。
① 先修改Tomcat的启动脚本,windows下为bin/catalina.bat(linux下为catalina.sh),添加以下内容,8999是jmxremote使用的端口号,第二个false表示不需要鉴权:
Xml代码
要注意以上语句的位置不能太后面,可以加在【if "%OS%" == "Windows_NT" setlocal】一句后的大段的注释后面。
参考官方说明:
http://tomcat.apache.org/tomcat-6.0-doc/monitoring.html#Enabling_JMX_Remote
② 上面的配置是不需要鉴权的,如果需要鉴权则添加的内容为:
Xml代码
③ 然后复制并修改授权文件
$JAVA_HOME/jre/lib/management下有jmxremote.access和jmxremote.password的模板文件,将两个文件复制到$CATALINA_BASE/conf目录下
◆ 修改$CATALINA_BASE/conf/jmxremote.access 添加内容:
◆ 修改$CATALINA_BASE/conf/jmxremote.password 添加内容:
注意: 如果进行了以上步骤导致Tomcat启动不了,那么很可能是密码文件的权限问题
需要修改jmxremote.password文件的访问权限,只有文件的owner所有者才能拥有访问权限 (并且文件的所有者必须与tomcat的所有者是同一用户):
Windows的NTFS文件系统下,选中文件,点右键 -->“属性”-->“安全”-->
点“高级”--> 点“更改权限”--> 去掉“从父项继承....”-->
弹出窗口中选“删除”,这样就删除了所有访问权限。再选“添加”--> “高级”-->
“立即查找”,选中你的用户(或用户组,如果选用户不行那就选用户组),点“确定",“确定"。来到权限项目窗口,勾选
“完全控制”,点“确定”,OK了。
官方的提示:
The password file should be read-only and only accessible by the operating system user Tomcat is running as.
④ 重新启动Tomcat,在Windows命令行输入“netstat -a”查看配置的端口号是否已打开,如果打开,说明上面的配置成功了。
⑤ 使用jconsole测试JMX。
运行$JAVA_HOME/bin目录下的jconsole.exe,打开J2SE监视和管理控制台,然后建立连接,如果是本地的Tomcat则
直接选择然后点击连接,如果是远程的,则进入远程选项卡,填写地址、端口号、用户名、口令即可连接。。Mbean属性页中给出了相应的数
据,Catalina中是tomcat的,java.lang是jvm的。对于加粗的黑体属性值,需双击一下才可看内容。
二、使用JMX监控Tomcat示例代码
Java代码
三、完整的示例代码文件
Java代码
实例2:
过程也算是磕磕绊绊,由于网上缺少相关资料,或者深陷于知识的海洋难以寻觅到有效的资料,因而走过不少弯路,遇过不少困难。为了留下点印记,给后来人留下
点经验之谈,助之少走弯路,故将这些经验整理出来,与大家分享。水平有限,难免疏漏,还望指正。如有疑问,欢迎留言,或者加入Q群参与讨
论:35526521。
一、激活Tomcat的JMX远程配置
要通过JMX远程监控Tomcat,首先需要激活Tomcat的JMX远程配置。
① 先修改Tomcat的启动脚本,windows下为bin/catalina.bat(linux下为catalina.sh),添加以下内容,8999是jmxremote使用的端口号,第二个false表示不需要鉴权:
Xml代码
set JMX_REMOTE_CONFIG=-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=8999 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false set CATALINA_OPTS=%CATALINA_OPTS% %JMX_REMOTE_CONFIG%
要注意以上语句的位置不能太后面,可以加在【if "%OS%" == "Windows_NT" setlocal】一句后的大段的注释后面。
参考官方说明:
http://tomcat.apache.org/tomcat-6.0-doc/monitoring.html#Enabling_JMX_Remote
② 上面的配置是不需要鉴权的,如果需要鉴权则添加的内容为:
Xml代码
set JMX_REMOTE_CONFIG=-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=8999 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=true -Dcom.sun.management.jmxremote.password.file=../conf/jmxremote.password -Dcom.sun.management.jmxremote.access.file=../conf/jmxremote.access set CATALINA_OPTS=%CATALINA_OPTS% %JMX_REMOTE_CONFIG%
③ 然后复制并修改授权文件
$JAVA_HOME/jre/lib/management下有jmxremote.access和jmxremote.password的模板文件,将两个文件复制到$CATALINA_BASE/conf目录下
◆ 修改$CATALINA_BASE/conf/jmxremote.access 添加内容:
monitorRole readonly controlRole readwrite
◆ 修改$CATALINA_BASE/conf/jmxremote.password 添加内容:
monitorRole tomcat controlRole tomcat
注意: 如果进行了以上步骤导致Tomcat启动不了,那么很可能是密码文件的权限问题
需要修改jmxremote.password文件的访问权限,只有文件的owner所有者才能拥有访问权限 (并且文件的所有者必须与tomcat的所有者是同一用户):
Windows的NTFS文件系统下,选中文件,点右键 -->“属性”-->“安全”-->
点“高级”--> 点“更改权限”--> 去掉“从父项继承....”-->
弹出窗口中选“删除”,这样就删除了所有访问权限。再选“添加”--> “高级”-->
“立即查找”,选中你的用户(或用户组,如果选用户不行那就选用户组),点“确定",“确定"。来到权限项目窗口,勾选
“完全控制”,点“确定”,OK了。
官方的提示:
The password file should be read-only and only accessible by the operating system user Tomcat is running as.
④ 重新启动Tomcat,在Windows命令行输入“netstat -a”查看配置的端口号是否已打开,如果打开,说明上面的配置成功了。
⑤ 使用jconsole测试JMX。
运行$JAVA_HOME/bin目录下的jconsole.exe,打开J2SE监视和管理控制台,然后建立连接,如果是本地的Tomcat则
直接选择然后点击连接,如果是远程的,则进入远程选项卡,填写地址、端口号、用户名、口令即可连接。。Mbean属性页中给出了相应的数
据,Catalina中是tomcat的,java.lang是jvm的。对于加粗的黑体属性值,需双击一下才可看内容。
二、使用JMX监控Tomcat示例代码
Java代码
String jmxURL = "service:jmx:rmi:///jndi/rmi://192.168.10.93:8999/jmxrmi"; JMXServiceURL serviceURL = new JMXServiceURL(jmxURL); Map map = new HashMap(); // 用户名密码,在jmxremote.password文件中查看 String[] credentials = new String[] { "monitorRole", "tomcat" }; map.put("jmx.remote.credentials", credentials); JMXConnector connector = JMXConnectorFactory.connect(serviceURL, map); MBeanServerConnection mbsc = connector.getMBeanServerConnection(); // 端口最好是动态取得 name对应的是ThreadPool 的名称,会有变化,根据自己的设置修改 ObjectName threadObjName = new ObjectName("Catalina:type=ThreadPool,name=http-8080"); MBeanInfo mbInfo = mbsc.getMBeanInfo(threadObjName); // tomcat的线程数对应的属性值 String attrName = "currentThreadCount"; MBeanAttributeInfo[] mbAttributes = mbInfo.getAttributes(); System.out.println("currentThreadCount:" + mbsc.getAttribute(threadObjName, attrName));
三、完整的示例代码文件
Java代码
import java.lang.management.MemoryUsage; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Formatter; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Set; import javax.management.MBeanAttributeInfo; import javax.management.MBeanInfo; import javax.management.MBeanServerConnection; import javax.management.ObjectInstance; import javax.management.ObjectName; import javax.management.openmbean.CompositeDataSupport; import javax.management.remote.JMXConnector; import javax.management.remote.JMXConnectorFactory; import javax.management.remote.JMXServiceURL; public class JMXTest { /** * @param args */ public static void main(String[] args) { try { String jmxURL = "service:jmx:rmi:///jndi/rmi://127.0.0.1:8999/jmxrmi"; JMXServiceURL serviceURL = new JMXServiceURL(jmxURL); Map map = new HashMap(); String[] credentials = new String[] { "monitorRole", "tomcat" }; map.put("jmx.remote.credentials", credentials); JMXConnector connector = JMXConnectorFactory.connect(serviceURL, map); MBeanServerConnection mbsc = connector.getMBeanServerConnection(); // 端口最好是动态取得 ObjectName threadObjName = new ObjectName( "Catalina:type=ThreadPool,name=http-8080"); MBeanInfo mbInfo = mbsc.getMBeanInfo(threadObjName); String attrName = "currentThreadCount";// tomcat的线程数对应的属性值 MBeanAttributeInfo[] mbAttributes = mbInfo.getAttributes(); System.out.println("currentThreadCount:" + mbsc.getAttribute(threadObjName, attrName)); // heap for (int j = 0; j < mbsc.getDomains().length; j++) { System.out.println("###########" + mbsc.getDomains()[j]); } Set MBeanset = mbsc.queryMBeans(null, null); System.out.println("MBeanset.size() : " + MBeanset.size()); Iterator MBeansetIterator = MBeanset.iterator(); while (MBeansetIterator.hasNext()) { ObjectInstance objectInstance = (ObjectInstance) MBeansetIterator .next(); ObjectName objectName = objectInstance.getObjectName(); String canonicalName = objectName.getCanonicalName(); System.out.println("canonicalName : " + canonicalName); if (canonicalName .equals("Catalina:host=localhost,type=Cluster")) { // Get details of cluster MBeans System.out.println("Cluster MBeans Details:"); System.out .println("========================================="); // getMBeansDetails(canonicalName); String canonicalKeyPropList = objectName .getCanonicalKeyPropertyListString(); } } // ------------------------- system ---------------------- ObjectName runtimeObjName = new ObjectName("java.lang:type=Runtime"); System.out.println("厂商:" + (String) mbsc.getAttribute(runtimeObjName, "VmVendor")); System.out.println("程序:" + (String) mbsc.getAttribute(runtimeObjName, "VmName")); System.out.println("版本:" + (String) mbsc.getAttribute(runtimeObjName, "VmVersion")); Date starttime = new Date((Long) mbsc.getAttribute(runtimeObjName, "StartTime")); SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); System.out.println("启动时间:" + df.format(starttime)); Long timespan = (Long) mbsc.getAttribute(runtimeObjName, "Uptime"); System.out.println("连续工作时间:" + JMXTest.formatTimeSpan(timespan)); // ------------------------ JVM ------------------------- // 堆使用率 ObjectName heapObjName = new ObjectName("java.lang:type=Memory"); MemoryUsage heapMemoryUsage = MemoryUsage .from((CompositeDataSupport) mbsc.getAttribute(heapObjName, "HeapMemoryUsage")); long maxMemory = heapMemoryUsage.getMax();// 堆最大 long commitMemory = heapMemoryUsage.getCommitted();// 堆当前分配 long usedMemory = heapMemoryUsage.getUsed(); System.out.println("heap:" + (double) usedMemory * 100 / commitMemory + "%");// 堆使用率 MemoryUsage nonheapMemoryUsage = MemoryUsage .from((CompositeDataSupport) mbsc.getAttribute(heapObjName, "NonHeapMemoryUsage")); long noncommitMemory = nonheapMemoryUsage.getCommitted(); long nonusedMemory = heapMemoryUsage.getUsed(); System.out.println("nonheap:" + (double) nonusedMemory * 100 / noncommitMemory + "%"); ObjectName permObjName = new ObjectName( "java.lang:type=MemoryPool,name=Perm Gen"); MemoryUsage permGenUsage = MemoryUsage .from((CompositeDataSupport) mbsc.getAttribute(permObjName, "Usage")); long committed = permGenUsage.getCommitted();// 持久堆大小 long used = heapMemoryUsage.getUsed();// System.out.println("perm gen:" + (double) used * 100 / committed + "%");// 持久堆使用率 // -------------------- Session --------------- ObjectName managerObjName = new ObjectName( "Catalina:type=Manager,*"); Set<ObjectName> s = mbsc.queryNames(managerObjName, null); for (ObjectName obj : s) { System.out.println("应用名:" + obj.getKeyProperty("path")); ObjectName objname = new ObjectName(obj.getCanonicalName()); System.out.println("最大会话数:" + mbsc.getAttribute(objname, "maxActiveSessions")); System.out.println("会话数:" + mbsc.getAttribute(objname, "activeSessions")); System.out.println("活动会话数:" + mbsc.getAttribute(objname, "sessionCounter")); } // ----------------- Thread Pool ---------------- ObjectName threadpoolObjName = new ObjectName( "Catalina:type=ThreadPool,*"); Set<ObjectName> s2 = mbsc.queryNames(threadpoolObjName, null); for (ObjectName obj : s2) { System.out.println("端口名:" + obj.getKeyProperty("name")); ObjectName objname = new ObjectName(obj.getCanonicalName()); System.out.println("最大线程数:" + mbsc.getAttribute(objname, "maxThreads")); System.out.println("当前线程数:" + mbsc.getAttribute(objname, "currentThreadCount")); System.out.println("繁忙线程数:" + mbsc.getAttribute(objname, "currentThreadsBusy")); } } catch (Exception e) { e.printStackTrace(); } } public static String formatTimeSpan(long span) { long minseconds = span % 1000; span = span / 1000; long seconds = span % 60; span = span / 60; long mins = span % 60; span = span / 60; long hours = span % 24; span = span / 24; long days = span; return (new Formatter()).format("%1$d天 %2$02d:%3$02d:%4$02d.%5$03d", days, hours, mins, seconds, minseconds).toString(); } }
实例2:
public ConcurrentHashMap<String, Object> parseJMS(String tempid, ConcurrentHashMap<String, Object> paraMap) { MBeanServerConnection mbsc = null; try { mbsc = connector.getMBeanServerConnection(); // ------------------------- system ---------------------- ObjectName runtimeObjName = new ObjectName("java.lang:type=Runtime"); TabularDataSupport system = (TabularDataSupport) mbsc.getAttribute(runtimeObjName, "SystemProperties"); //JVM版本 paraMap.put(tempid + "_JVMVERSION", mbsc.getAttribute(runtimeObjName, "VmVersion")); //JVM厂商 paraMap.put(tempid + "_JVMMANUFACTURER", mbsc.getAttribute(runtimeObjName, "VmVendor")); //系统结构 paraMap.put(tempid + "_SYSTEMSTRUCTURE", system.get(new Object[] {"os.arch"}).get("value")); //操作系统 paraMap.put(tempid + "_OPERATIONSYSTEM", system.get(new Object[] {"os.name"}).get("value")); //操作系统版本 paraMap.put(tempid + "_OPERATIONSYSTEMVERSION", system.get(new Object[] {"os.version"}).get("value")); //Tomcat版本 String t_version = (String) system.get(new Object[] {"org.apache.catalina.startup.TldConfig.jarsToSkip"}).get("value"); paraMap.put(tempid + "_TOMCATVERSION", t_version == null ? "" : t_version.substring(0, t_version.indexOf("-"))); //链接Tomcat服务器的响应时间 ------------- ObjectName heapObjName = new ObjectName("java.lang:type=Memory"); MemoryUsage heapMemoryUsage = MemoryUsage.from((CompositeDataSupport)mbsc.getAttribute(heapObjName, "HeapMemoryUsage")); //JVM已用内存 paraMap.put(tempid + "_JVMUSERDMEMORY", heapMemoryUsage.getUsed()); //JVM可用内存 paraMap.put(tempid + "_JVMAVAILABLEMEMORY", heapMemoryUsage.getCommitted() - heapMemoryUsage.getUsed()); //JVM内存总数 paraMap.put(tempid + "_JVMTOTALMEMORY", heapMemoryUsage.getCommitted()); //----------------- GlobalRequestProcessor ---------------- ObjectName requestProcessor = new ObjectName("Catalina:type=GlobalRequestProcessor,*"); Set<ObjectName> s2 = mbsc.queryNames(requestProcessor, null); long bytesSents = 0; long bytesReceiveds = 0; Integer errorCounts = 0; Integer requestCounts = 0; long processingTimes = 0; long maxTimes = 0; for (ObjectName obj : s2) { ObjectName objname = new ObjectName(obj.getCanonicalName()); long bytesSent = (long) mbsc.getAttribute( objname, "bytesSent"); long bytesReceived = (long) mbsc.getAttribute( objname, "bytesReceived"); Integer errorCount = (Integer) mbsc.getAttribute( objname, "errorCount"); Integer requestCount = (Integer) mbsc.getAttribute( objname, "requestCount"); long processingTime = (long) mbsc.getAttribute( objname, "processingTime"); long maxTime = (long) mbsc.getAttribute( objname, "maxTime"); bytesSents += bytesSent; bytesReceiveds += bytesReceived; errorCounts += errorCount; requestCounts += requestCount; processingTimes += processingTime; maxTimes += maxTime; } //发送字节 paraMap.put(tempid + "_SENDBYTE", bytesSents); //接收字节 paraMap.put(tempid + "_RECIEVEDBYTE", bytesReceiveds); //错误个数 paraMap.put(tempid + "_ERRORNUMBER", errorCounts); //请求个数 paraMap.put(tempid + "_REQUESTNUMBER", requestCounts); //处理时间 paraMap.put(tempid + "_TREATMENTTIME", processingTimes); //最大处理时间 paraMap.put(tempid + "_MAXTREATMENTTIME", maxTimes); //----------------- Thread Pool ---------------- ObjectName threadpoolObjName = new ObjectName("Catalina:type=ThreadPool,*"); Set<ObjectName> tp = mbsc.queryNames(threadpoolObjName, null); int currentThreadsBusys = 0; int maxThreadss = 0; for (ObjectName obj : tp) { ObjectName objname = new ObjectName(obj.getCanonicalName()); int currentThreadsBusy = (int) mbsc.getAttribute( objname, "currentThreadsBusy"); int maxThreads = (int) mbsc.getAttribute( objname, "maxThreads"); currentThreadsBusys += currentThreadsBusy; maxThreadss += maxThreads; } //当前忙碌线程数 paraMap.put(tempid + "_CURRENTBUSYTHREADSNUMBER", currentThreadsBusys); //最大线程数 paraMap.put(tempid + "_MAXTHREADSNUMBER", maxThreadss); //----------------- RequestProcessor ---------------- ObjectName requestProcessor1 = new ObjectName("Catalina:type=RequestProcessor,*"); Set<ObjectName> rp = mbsc.queryNames(requestProcessor1, null); long requestProcessingTimes = 0; int portCount = 0; for (ObjectName obj : rp) { portCount++; ObjectName objname = new ObjectName(obj.getCanonicalName()); long requestProcessingTime = (long) mbsc.getAttribute(objname, "requestProcessingTime"); requestProcessingTimes += requestProcessingTime; } //端口平均响应时间 paraMap.put(tempid + "_AVERAGERESPONSETIME", portCount == 0 ? requestProcessingTimes : Math.round(requestProcessingTimes/portCount)); } catch (IOException e) { e.printStackTrace(); } catch (MalformedObjectNameException e) { e.printStackTrace(); } catch (AttributeNotFoundException e) { e.printStackTrace(); } catch (InstanceNotFoundException e) { e.printStackTrace(); } catch (MBeanException e) { e.printStackTrace(); } catch (ReflectionException e) { e.printStackTrace(); } catch (SecurityException e) { e.printStackTrace(); } catch (IllegalArgumentException e) { e.printStackTrace(); } return paraMap; } public static void main(String[] args) { DoJob job = new DoJob(); String tempid = "MW_WS_TOMCAT_AGENT"; job.connector = TomcatUtil.getJMXOfTomcat("service:jmx:rmi:///jndi/rmi://191.168.2.31:8999/jmxrmi", "", ""); ConcurrentHashMap<String, Object> paraMap = new ConcurrentHashMap<String, Object>(); paraMap = job.parseJMS(tempid, paraMap); Iterator<String> it = paraMap.keySet().iterator(); while(it.hasNext()) { String key = it.next(); System.out.println(key + " : " + paraMap.get(key)); } }
相关文章推荐
- eclipse启动tomcat出现内存溢出错误 java.lang.OutOfMemoryError: PermGen space
- Eclipse 配置Tomcat
- 使用jconsole监控tomcat(推荐配置)
- Tomcat启动脚本
- Ubnutu 实时查看Tomcat日志信息
- 使用JDK自带jvisualvm监控tomcat(收藏)
- tomcat向WebSphere移植
- tomcat启动失败原因之一
- tomcat 粗略笔记
- Eclipse部署不成功的问题(部署到tomcat中,只有个空文件夹)
- Tomcat安装运行详解
- centos安装mysql,tomcat
- 服务端技术进阶(二)JBoss和tomcat的区别
- 服务端技术进阶(二)JBoss和tomcat的区别
- Linux下tomcat的安装
- Ubuntu 14.04 安装Apache、MySQL、PHP、JDK7、Tomcat7、vsFTPd、Open SSH Server快速步骤
- 入侵Tomcat服务器一次实战描述
- 入侵Tomcat服务器一次实战描述
- Linux下管理Tomcat
- Tomcat源码分析——请求原理分析(中)