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Demo for RedHat Session S1506: Using machine learning, Red Hat JBoss BPM Suite, and reactive microservices
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README.md

MachineLearningReactiveBPM

This repo contains the code for the POC that is part of RedHat Session S1506: Using machine learning, Red Hat JBoss BPM Suite, and reactive microservices. It demonstrates how you can integrate jBPM, reactive java microservices, and H20 machine learning with Kafka using docker containers.

Alt text

BPM Suite Dockerfile and setup files

Dockerfile - This file can be used to build a docker imaging of BPM Suite. For it to work, you need to create 3 directories: patch, installers, and support. It currently installs BPM Suite 6.3 and EAP 6.4.8. You will need to download the binaries from the RedHat site and put them into the appropriate folders.

  • Download the BPM Suite and EAP installers and upload them to the installers directory.
    • jboss-bpmsuite-6.3.0.GA-installer.jar
    • jboss-eap-6.4.0-installer.jar
  • Download the patch for EAP 6.4.8 and upload this to the patch directory.
    • jboss-eap-6.4.8-patch.zip
  • Download these files in the support folder:
    • eap.xml
    • eap.xml.variables
    • bpms.xml
    • bpms.xml.variables

After building the image, use the below command to run the docker container docker run -p 8080:8080 -p 8001:8001 -d bpmsuite

Kie Server Kafka Extension

You can find David Murphy's kie server kafka extension at the below repo https://gitlab.com/murph83/kie-server-kafka.git The modified version used for the demo can be found here https://github.com/andy9876/kie-server-kafka

BPM Suite project

This contains the source code for the bpm suite fraud example

RunModelMS microservice

This is a java based microservice that invokes a H2o model. The H2o model takes the follow parameters: time, 28 various numerical inputs, and transaction amount. It will return a p.label value for 1 if fraudulent or 0 for not fraudulent. Class probabilities value indicates the probability of the p.label accuracy. Below are some sample events that can be placed on the card.transaction topic for it to trigger from a unit testing perspective:

  • Fraudulent transaction

    CardKafka:2,{"id":"33bb75db-6e13-48ee-8a54-b3976d3d065b","action": "Features Calculated","data": {"timestamp": "2016-06-10T14:33:29.102-00:00", "time": "7891", "v1": "-1.585505367", "v2": "-3.261584548","v3": "-4.137421983","v4": "2.357096252","v5": "-1.405043314","v6": "-1.879437193","v7": "-3.513686871","v8": "1.515606746","v9": "-1.207166361","v10": "-6.234561332","v11": "5.450746067","v12": "-7.333714067","v13": "1.361193324","v14": "-6.608068252","v15": "-0.481069425","v16": "-2.60247787","v17": "-4.835112052","v18": "-0.553026089","v19": "0.351948943","v20": "0.315957259","v21": "0.501543149","v22": "-0.546868812","v23": "-0.076583636","v24": "-0.425550367","v25": "0.123644186","v26": "0.321984539","v27": "0.264028161","v28": "0.13281672","amount": "1"}}}

  • Non-Fraudulent transaction

    CardKafka:2,{"id":"33bb75db-6e13-48ee-8a54-b3976d3d065b","action": "Features Calculated","data": {"timestamp": "2016-06-10T14:33:29.102-00:00", "time": "472", "v1": "-3.043540624", "v2": "-3.157307121","v3": "1.08846278","v4": "2.288643618","v5": "1.35980513","v6": "-1.064822523","v7": "0.325574266","v8": "-0.067793653","v9": "-0.270952836","v10": "-0.838586565","v11": "-0.414575448","v12": "-0.50314086","v13": "0.676501545","v14": "-1.692028933","v15": "2.000634839","v16": "0.666779696","v17": "0.599717414","v18": "1.725321007","v19": "0.28334483","v20": "2.102338793","v21": "0.661695925","v22": "0.435477209","v23": "1.375965743","v24": "-0.293803153","v25": "0.279798032","v26": "-0.145361715","v27": "-0.252773123","v28": "0.035764225","amount": "529"}}}

  • NOTE - if unit testing with the above message, YOU MUST PASS THE KAFKA key!! Otherwise the consumer will error. Example unit test using kafka console producer to pass the key: ./kafka-console-producer.sh --topic card.transaction --broker-list 18.204.180.80:9092 --property "parse.key=true" --property "key.separator=:"

Leverage the Dockerfile to build the container. To run the docker container:

docker run -d runmodelms:latest

CalcFeaturesMS microservice

This is a java based microservice that simulates calculating the 28 features needed by the H20 model. It triggers on the action "Calc Features" and randomly returns a pre-baked set of 28 features that are known to either generate a fraud or non-fraud response from the model.

Leverage the Dockerfile to build the container. To run the docker container:

docker run -d calcfeaturesms:latest

*NOTE - make sure the kafka consumer group for CalcFeaturesMS and RunModelMS is different, otherwise only one of the services will be able to read the messages.

Kafka and Zookeeper Dockerfiles

The included Dockerfiles require kafka_2.10-0.10.2.0.gz, you can download this off of https://kafka.apache.org/downloads

To run these containers:

docker run -p 9092:9092 --entrypoint /opt/kafka_2.10-0.10.2.0.gz/kafka_2.10-0.10.2.0/bin/kafka-server-start.sh -d --name kafka kafka:latest /opt/kafka_2.10-0.10.2.0.gz/kafka_2.10-0.10.2.0/config/server.properties --override zookeeper.connect=<zookeeperIP>:2181 --override advertised.listeners=PLAINTEXT://<kafkaIP>:9092 --override advertised.host.name=<kafkaIP> --override advertised.port=9092

docker run -p 2181:2181 --name zookeeper -d zookeeper:latest

H2o Model & Components

For the H20 model, we leveraged Gradient Boosting Machine (GBM) Algorithm

  • gbm_a65d8149_cfdc_4f33_bead_5d9456e4a93b.java - H2o generated pojo for model
  • creditcard.csv - training dataset not in the repo due to size, but can be found here https://www.kaggle.com/mlg-ulb/creditcardfraud/downloads/creditcardfraud.zip/3
  • Credit Card Fraud demo.flow - H2o flow notebook that shows the steps taken to build the model
  • If you want to run the H20 model by itself , use these components
    • main.java - wrapper class that invokes the H2o model
    • h2o-genmodel.jar - shared library that contains all necessary dependencies for running model
      • To build: javac -cp h2o-genmodel.jar -J-Xmx2g -J-XX:MaxPermSize=128m gbm_a65d8149_cfdc_4f33_bead_5d9456e4a93b.java main.java
      • To run:
        java -cp .;h2o-genmodel.jar main
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