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    posts - 97,  comments - 93,  trackbacks - 0
    PMI
    PMI(Performance MonitoringInfrastructure) uses a client and server architecture and it can collect the performance data from one or more  was platform and its components which can help to monitor the health of the application server,as well, process the data.such as the response time of the servlets, JSP component and enterprisebeans performance, JVM,etc.PMI service is a  server component and there r three clients which can retrieve data from the Server by the JMX API, a Web Client, a java Client, Java Management Extensions. Actually, the was platform contains Tivoli performance viewer , a java client which displays && monitors the performance data.

                  Web client                                                            >                PerfServlet PerfMBeans AppServer
                                                                                         V/
              JMX client Java         >                       >               <                      
                         PMI Client Wrapper  JMX ConnectorRMI/SOAP   PerfServlet PerfMBeans AppServer

                 TivoliMViever    /^                   

    What's more , we can create custom-made statistics to best meet our monitoring needs && displays and monitors in a portal. PMI  instrumentation is based on j2ee1.4 and the custom supports all the statistic types, countstatistic timestatistic,rangetatistic, boundedrangestatistic.but as a feature , it cannot support the uerdefined statistic types.
    We can use Admin Client API to get the custom performance data. Was6.1.0,%WAS_HOME%AppServe\runtimes path includes two jar files, and they r all client related Jar files.,%WAS_HOME%AppServe\properties\jmx.properties we can modify these configuration which will stand the corresponding ones of conf.properties.With the Jar file com.ibm.ws.admin.client_6.1.0.jar, as following will give a simple sample about retrieving the custom interesting performance data and here just to get the server node.
     1import java.util.HashSet;
     2import java.util.Iterator;
     3import java.util.Set;
     4
     5import javax.management.MalformedObjectNameException;
     6import javax.management.ObjectName;
     7
     8import com.ibm.websphere.management.AdminClient;
     9import com.ibm.websphere.management.AdminClientFactory;
    10import com.ibm.websphere.management.exception.AdminException;
    11
    12/**
    13 * @author QuQiang
    14 * 
    15 */

    16public class Test {
    17
    18    public static void main(String[] args) {
    19        AdminClient ad = null;
    20        boolean failed = false;
    21        java.util.Properties props = new java.util.Properties();
    22        props.put(AdminClient.CONNECTOR_TYPE, "connector");
    23        props.put(AdminClient.CONNECTOR_HOST, "host");
    24        props.put(AdminClient.CONNECTOR_PORT, "port");
    25        try {
    26            ad = AdminClientFactory.createAdminClient(props);
    27            javax.management.ObjectName on = new javax.management.ObjectName(
    28                    "WebSphere:*");
    29            Set objectNameSet = ad.queryNames(on, null);
    30            HashSet nodeSet = new HashSet();
    31            for (Iterator i = objectNameSet.iterator(); i.hasNext(); on = (ObjectName) i
    32                    .next()) {
    33                String type = on.getKeyProperty("type");
    34                if (type != null && type.equals("Server")) {
    35                    System.out.println(on.getKeyProperty("name"));//node objectName     
    36                }

    37            }

    38
    39        }
     catch (MalformedObjectNameException me) {
    40            failed = true;
    41            new AdminException(me).printStackTrace();
    42            System.out.println("ObjectName: exception");
    43        }
     catch (Exception ex) {
    44            failed = true;
    45            new AdminException(ex).printStackTrace();
    46            System.out.println("getAdminClient: exception");
    47        }

    48    }

    49}

    posted on 2007-07-13 17:32 wqwqwqwqwq 閱讀(1193) 評論(2)  編輯  收藏 所屬分類: IBM Tech

    FeedBack:
    # re: PMI
    2007-07-13 21:08 | 常常
    這是什么代碼啊??

    -------------------------------------------------
    http://www.sy555.com  回復  更多評論
      
    # re: PMI
    2007-07-13 23:25 | 曲強 Nicky
    @常常
    A sample but not finished code segment about WAS system components performance api Test.
      回復  更多評論
      
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