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jopen
10年前发布

运用JMX监控Tomcat

1、先配Tomcat的启动语句,window下tomcat的bin/catalina.bat(linux为catalina.sh),在头上注释部分(.bat为rem、.sh为#)后面加上set JAVA_OPTS=-Dcom.sun.management.jmxremote.port=8999 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=true

(linux为JAVA_OPTS=-Dcom.sun.management.jmxremote.port=8999 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=true)
2、修改jmx远程访问授权。默认为JAVA_HOME/jre/lib/management下jmxremote.access、jmxremote.password(缺省系统提供了个模版jmxremote.password.template改下名就成)

注意:linux下需要该权限,chmod 600 jmxremote.access, chmod 600 jmxremote.password

window下特麻烦,现需要jdk装在NTFS文件系统下,选中文件,点右键“属性”-〉安全,点“高级”,去掉“从父项继承....”,弹出窗口中选“删除”,这样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,例administrator,点“确定",“确定"。来到权限窗口,勾选"完全控制",点"确定",OK了。

 

3、用jconsole连接远程linux服务时, IP地址和port都输入正确的情况下,仍然是连接失败 
vi /etc/hosts,将hostname对应的IP改为真实IP

 

4、测试JMX。启动tomcat,在window“命令行窗口”中输入netstat -an看下8999端口打开没有。若没有,则前面没配对。若已打开,则可在另一台机器的“命令行窗口”中输入jconsole,打开jdk自带的jmx客户端。选远程连接,录入tomcat所在机器的IP,端口例192.168.10.10:8999,帐号、密码在jmxremote.password中,如帐号controlRole,密码R&D(缺省monitorRole只能读,controlRole能读写,jmxremote.access中可配置)。点“连接”。看到图就行了。

5、关于数据。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

5、关于编程。

public class JMXTest {     /**    * @param args    */   public static void main(String[] args) {    try {         String jmxURL = "service:jmx:rmi:///jndi/rmi://192.168.10.93:8999/jmxrmi";//tomcat jmx url             JMXServiceURL serviceURL = new JMXServiceURL(jmxURL);                          Map map = new HashMap();             String[] credentials = new String[] { "monitorRole" , "QED" };             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();   }  }

 

另外实例:

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));    }   }

 来自;:http://my.oschina.net/xuqiang/blog/294613

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JMX Tomcat 应用服务器