Generic fLexIble Monitoring based on a Publish-Subscribe infrastructurE

The deployment and the execution of applications on dynamic runtime infrastructures introduces new requirements of adaptability with respect to monitoring. Specifically, the governance of services relies on the observation and analysis of events happening at different abstraction layers. Adaptability requirements are even more evident when monitoring deals with Service Level Agreements (SLA) or KPI (Key Performance Indicator). The proposed monitoring infrastructure keeps track of the continuous evolution of the underlying environment, and adapt itself accordingly. The multi-source monitoring architecture developed by SEDC Laboratory that can synthesize on-the-fly SLA/KPI monitoring rules following the evolution of the infrastructure. Here below, a brief description of the main monitoring components as show in Figure 1. More details are provided in the referenced papers.

The event structure can be extend including all the attributes relevant for monitoring activities.

• ComplexEventRule: The XSD of the ObjectMessage sent by the GlimpseConsumer to request an evaluation.

• GlimpseBaseEvent<?>: The object sent into the data field of the ObjectMessage sent by the GlimpseProbe to Glimpse

• ComplexEventException: The XSD of the ObjectMessage sent by GlimpseManager to notify to the GlimpseConsumer an exception occurred into the SUT.

• ComplexEventResponse: The XSD of the ObjectMessage sent by GlimpseManager to notify an occurrence of the requested pattern to the GlimpseConsumer.

• ServiceMix4: http://servicemix.apache.org/SMX4/download.html
• A client able to send and receive JMS messages

rule "BPMN_SESSIONID_COMPLETIONTIME"
  no-loop
  salience 10
  dialect "java"
    when
      $aEvent : GlimpseBPMNEvent(
        this.isConsumed == false,
	this.getEventName == "start",
        this.getSessionID == "_SESSIONID_",
	this.getEventActivityName == "_TASKID_",
        this.getTimeStamp == _TIMESTAMP_);
     
      $bEvent : GlimpseBPMNEvent(this.isConsumed == false,
	this.getEventName == "end",
        this.getSessionID == "_SESSIONID_",
	this.getEventActivityName == "_TASKID_",
        this after $aEvent);	
    then
	$aEvent.setConsumed(true);
	update($aEvent);
	$bEvent.setConsumed(true);
	update($bEvent);
	
	ResponseDispatcher.LogExecution(
          "RULE","auto_generated_rule",
	  "\nThe completion time is:" +
          bEvent.getTimeStamp() - aEvent.getTimeStamp());
	retract($aEvent);
	retract($bEvent);
end

https://github.com/acalabro/glimpse

• Glimpse Monitoring Manager v.0.3
• Glimpse Monitoring Manager v.0.4
• Glimpse API 3.2.1: to develop your own probe/consumer - recommended for the CONNECT Consortium
• Glimpse API 3.3.1
• Glimpse API 3.3.2: latest version - recommended for the CHOReOS Consortium
• Maven package for LearnPAd usage (alpha release)

Install and run service mix

Modify the parameter “org.apache.activemq.jndi.ActiveMQInitialContextFactory java.naming.provider.url =” contained into the environmentFile of each packet (glimpseEnabler, glimpseProbe, glimpseManager) with the ipaddress of your serviceMix4 installation.

For CONNECT use: tcp:\\atlantis.isti.cnr.it:61616

Start the manager typing: java -jar GlimpseManager.jar systemSettings

It is possible to use one or more probe, to do that, just modify the parameter connectorName into the probeSettings file.

• GLIMPSE: A Generic and Flexible Monitoring Infrastructure
• GLIMPSE: A Generic and Flexible Monitoring Infrastructure - ACM Link
• Automated Refinement of Dependability Analysis through Monitoring
• Towards a model-driven infrastructure for runtime monitoring
• Adaptive SLA Monitoring of Service Choreographies Enacted on the Cloud
• A Generative Approach for the Adaptive Monitoring of SLA in Service Choreographies
• Monitoring of Business Process execution based on performance indicators
• KPI Evaluation of the Business Process Execution through Event Monitoring Activity
• Business Process Execution Analysis through Coverage-based Monitoring
• Towards Business Process Execution Adequacy Criteria
• Enhancing Business Process Performance Analysis through Coverage-Based Monitoring
• Design of a Simulation Framework for Model-based Learning
• Model-based Learning Assessment Management
• Towards the Automation of the Travel Management Procedure of an Italian Public Administration

ChoreOS Monitoring Demo https://www.youtube.com/embed/QettUXhbABQ

Connect Drone Demo http://second18.isti.cnr.it/misc/connectVideo.mp4

• Antonia Bertolino
• Antonello Calabrò
• Guglielmo De Angelis