Mike Dickson Tidal Software

Introduction From a little town called Gig Harbor, WA Married with 5 children Degree in CS from BYU Former Sun Java Instructor Bluestone HP Middleware HP Openview Now at Tidal Software

Agenda JMX Overview –JMX Definition –JMX MBeans Types –JMX MBean Server JMX Implementation Architecture –Overall Architecture –Agent Architecture –Client Architecture JMX Implementation Demo –Operations Views –Developer Views and Functinos Please ask question all along

JMX Overview JMX – Java Management Extensions –How to manage resources like devices or applications the Java way –It is accomplished by “Instrumenting” your code –Very comprehensive and well thought out Started with JSR 3! Scope –Application Configuration –Statistics –State Changes of Systems

JMX Overview An MBean is a Java object that is instrumented to make Java systems manageable They consist of: –Attributes –Methods –Notifications –Constructors There are four types of MBeans: –Standard MBeans Define Java Bean compliant Interface, then implement it Static interface Metadata is generated by the JMX Agent –Dynamic MBeans Implement DynamicMBean interface –getAttibute, setAttribute, getAttributes, setAttributes, invoke, getMBeanInfo More flexible and Dynamic Developer creates the Meta Data

JMX Overview –Model MBeans Is a Dynamic MBean that uses Metadata Classes to describe features at the top of the slide ModelMBean implements DynamicMBean It is able to persist itself Implements the ModelMBean interface –setModelMBeanInfo, setManagedResource RequiredModelMBean is an implementation of this that must be in each JMX implementation –You don’t have to implement the ModelMBean interace just the meta data classes to describe your features –Open MBean No specific interface that you have to implement other than DynamicMBean The first three MBean types usually only describe the native Java data types and Strings They also allow arrays of those types But what about complex data types? Open MBeans “open” up MBeans to complex data types without the management application having to deal with user class file data types They create a subclass of OpenType for attributes, methods, notifications, constructors

JMX Overview Notification Model –Same as the normal Java Event Model –Broadcaster and Listeners MBean Server –Like a RMI server –You register you MBeans –The Server does not need to be in the same JVM –Everything is an Interface –Connectors(Agents) talk to the MBean Server to do their magic

Tidal Intersperse – Architecture JMS Persistence RDBMS Services LDAP SOM Browser JMX Client Web Services Client SNMP Client Database Web Service HPOV/Tivoli/….NET Java SE VM Java EE Java EE Cluster Monitored Systems Standards-Based Interfaces

Application Server JMX Server Agent Tidal Intersperse – Agent Architecture JMS Bus Persistence RDBMS Services LDAP Standard Object Model Intersperse Middle Tier Application

Tidal Intersperse – Client Architecture JMS Bus Persistence RDBMS Services LDAP Standard Object Model Intersperse Middle Tier

JMX Implementation Demo Intersperse 6.0