Introduction to WSO2 BPS

We can use WSO2 BPS for efficient business Process Management by allowing easy deploy of business processes written using either WS-BPEL standard or BPMN 2.0 standard.

Business Process: Collection of related and structured activities or tasks, that meants a business use case and produces a specific service or output. A process may have zero or more well-defined inputs and an output.

Process Initiator: The person or Apps who initiates business process.

Human task: In here human interaction is involved in business process.

BPEL: It is an XML-based language used for the definition and execution of business. Composing of web services and orchestration.

BPMN: Graphical notation of business processes.

Simple BPEL Process Modeling

• Download BPS product.
• Go to <BPS_HOME> -> bin through terminal and execute sh ./wso2server.sh command.
• Install the plug-in with pre-packaged Eclipse - This method uses a complete plug-in installation with pre-packaged Eclipse, so that you do not have to install Eclipse separately. On the WSO2 BPS product page, click Tooling and then download the distribution according to your operating system under the Eclipse JavaEE Mars + BPS Tooling 3.6.0 section.
• Then we need to create carbon Composite Application Project. These steps clearly mentioned in https://docs.wso2.com/display/BPS360/BPEL+Guide

 

JAVA Flight Recorder with WSO2 Products

Brief JAVA Flight Recorder

A profiling and event collection framework built into the Oracle JDK. It gathers low level information about the JVM and application behavior without performance impact (less than 2%). With Java Flight Recorder system administrators and developers have a new way to diagnose production issues. JFR provides a way to collect events from a Java application from the OS layer, the JVM, and all the way up to the Java application. The collected events include thread latency events such as sleep, wait, lock contention, I/O, GC, and method profiling. JFR can be enabled by default and continuously collect low level data from Java applications in production environments. This will allow a much faster turnaround time for system administrators and developers when a production issue occurs. Rather than turning on data gathering after the fact, the continuously collected JFR data is simply written to disk and the analysis can be done on data collected from the application leading up to the issue, rather than data collected afterwards. We can use this JFR to do long run testing in effective way.

Here we will see using JFR to do long run testing to WSO2 products through JMC (JAVA Mission Control). Here I am taking WSO2 CEP as WSO2 Product.

•  Go to <CEP_HOME>/bin and open wso2server.sh using gedit.
• In that you can see $JAVACMD. Below that add these to enable JFR
•  -XX:+UnlockCommercialFeatures \
•   -XX:+FlightRecorder \
• Start WSO2 CEP by using sh ./wso2server.sh in terminal.
• Then start JMC by clicking on that. You can see this org.wso2.carbon.bootstrap.Bootstrap in that UI like below.

• Right click on org.wso2.carbon.bootstrap.Bootstrap and click on start Flight Recording. Following window will be appear.

• Then go to next steps and do your  relevant changes and click on Finish.
• After specific time you mentioned you will get a .jfr file you can see the memory growth, cpu usage..... in that.
• You can open this .jfr file anytime.
  
  Thanks all :)