Monitoring AEM forms deployments

You can monitor AEM forms deployments from both a system level and an internal level. You can use specialist management tools such as HP OpenView, IBM® Tivoli, and CA UniCenter and a third-party JMX monitor called JConsole to specifically monitor Java™ activity. Implementation of a monitoring strategy improves availability, reliability, and performance of your AEM forms deployments.

Monitoring using MBeans

AEM Forms provides two registered MBeans that provide navigation and statistic information. These parts are the only MBeans that are supported for integration and inspection:

• ServiceStatistic: This MBean provides information about Service name and its version.
• OperationStatistic: This MBean provides the statistic of every AEM Forms server’s service. This MBean is where administrators can get information about a particular service such as invocation time, and number of errors.

ServiceStatisticMbean public interfaces

These public interfaces of ServiceStatistic MBean can be accessed for testing purposes:

 public String getServiceId();
 public int getMajorVersion();
 public int getMinorVersion();

OperationStatisticMbean public interfaces

These public interfaces of OperationStatistic MBean can be accessed for testing purposes:

 // InvocationCount: The number of times the method is invoked.
 public long getInvocationCount();
 // InvocationStartTime: The time at which the method started to execute.
 public long getInvocationStartTime();
 // InvocationEndTime: The time at which the method finished execution.
 public long getInvocationEndTime();
 // InvocationTime: The time taken for the execution of the method.
 public long getInvocationTime();
 // LastSamplingDateTime: Convert InvocationStartTime to a formatted string
 public String getLastSamplingDateTime();
 // MaxInvocationTime: The maximum time taken for the execution of the method.
 public long getMaxInvocationTime();
 // MinInvocationTime: The minimum time taken for the execution of the method.
 public long getMinInvocationTime();
 // AverageInvocationTime: the averege execution time taken for the execution of the method.
 public double getAverageInvocationTime();
 // ExceptionCount: The number of times the method has thrown an Exception.
 public long getExceptionCount();
 // ExceptionMessage: The message of the last exception occurred.
 public String getExeptionMessage();
 public void setExceptionMessage(String errorMessage);

MBean Tree & Operation Statistics

Using a JMX console (JConsole), statistics from OperationStatistic MBean are available. These statistics are MBean’s attributes, and can be navigated under the following hierarchy tree:

MBean tree

Adobe Domain Name: Depends on Application Server. If the Application Server does not define the domain, the default is adobe.com.

ServiceType: AdobeService is the name used to list all services.

AdobeServiceName: Service Name, or Service ID.

Version: Version of the service.

Operation Statistics

Invocation Time: Time taken for the execution of the method. This invocaation does not include the time the request is serialized, transferred from client to server, and deserialized.

Invocation count: The number of times the service is invoked.

Average invocation time: Average time of all invocations that have executed since the server was started.

Max invocation time: The duration of the longest invocation that has executed since the server was started.

Min invocation time: The duration of the shortest invocation that has executed since the server was started.

Exception Count: Number of invocations that have resulted in failures.

Exception Message: The error message of the last exception that occurred.

Last Sampling Date Time: The date of the last invocation.

Time Unit: Default is millisecond.

To enable JMX monitoring, the application servers typically need some configuration. See your application server documentation for the specifics.

Examples of how to set up open JMX access

JBoss® 4.0.3/4.2.0 - configure the JVM startup

To view MBeans from JConsole, configure the JBoss application server’s JVM startup parameters. Ensure JBoss is started from the run.bat/sh file.

1. Edit the run.bat file that is located under InstallJBoss/bin.

2. Find the JAVA_OPTS line and add the following:

    -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9088 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false
   

WebLogic 9.2 /10 - configure the JVM startup

1. Edit the startWebLogic.bat file that is located under [WebLogic home]/user_projects/domains/Adobe_Live_Cycle/bin.

2. Find the JAVA_OPTS line and add the following:

    -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9088 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false
   

3. Restart WebLogic.

Access the MBean remotely

1. Launch JConsole for new connection and click remote tab.
2. Enter the hostname and port (9088, the number you specify during the start up options of JVM).

WebSphere® 6.1 - configure JVM startup

1. On the Admin Console (Application server > server1 > Process Definition > JVM), add the following line into the field for Generic JVM Argument:

    -Djavax.management.builder.initial= -Dcom.sun.management.jmxremote
   

2. Add or uncomment the following three lines in the /opt/IBM/WebSphere/AppServer/java/jre/lib/management/management.properties file (or <Your Websphere JRE>/ lib/management/management.properties):

    com.sun.management.jmxremote.port=9999 //any port you like, but make sure you use this port when you connect
    com.sun.management.jmxremote.authenticate=false
    com.sun.management.jmxremote.ssl=false
   

3. Restart WebSphere.