Presented by Simon Zambrovski, Stefan Becke Do you know Camunda batch and have you ever tried to create your own custom batch with Camunda BPM? Well, we did and it was very time consuming and quite complex. There isn’t really a public API for such things. You have to work at the lowest (entity) level and take e.g. care that batch configuration is saved to the database table. That’s why we created the Camunda BPM Custom Batch Extension (https://github.com/camunda/camunda-bpm-custom-batch). The goal of the extension is to provide a simple way of using the Camunda Batch functionality for your own purposes. In this talk we’ll also show you some examples how we use the extension at Kuehne + Nagel for offloading huge workloads.

1. and real life examples from Kühne + Nagel
Camunda BPM Custom Batch

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Simon Zambrovski
Holisticon AG
BPM Craftsman
Stefan Becke
Kühne + Nagel (AG & Co.) KG
Lead Architect
Who we are

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Patrick Schalk
Holisticon AG
Senior Consultant
Most credits go to…

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Requirements
■ Process a huge amount of data, e.g.:
¨ Distribution of emails
¨ Reassignment of tasks
¨ Technical stuff like clean-up
■ Decoupled from business process
■ Monitoring
■ Recovery / Fault tolerance

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Camunda Solution
■ Camunda Batch – Since version 7.5
■ Manual operations on huge amount of processes
■ Initially for migration of processes only
■ Meanwhile as well for a lot of other stuff

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Nice ... but …
■ Just for internal workload of the engine
■ No Java API
■ Time consuming and complex
■ No documentation

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TODO without extension
■ Create a batch entity
■ Create a seed and monitoring job
■ Create batch jobs
■ Persist / read configuration (ACT_GE_BYTEARRAY)

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Example without extension - BatchEntity

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Example without extension - Configuration

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BPM Custom Batch
■ Camunda batch for everyone!
■ Easy and fast integration
■ Already used in production
■ Official extension

11. How to use

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Concepts
Data
Batch Data
N Items
Job Handler
Invocations per batch
Batch Data
Batch Data
Number of batch jobs
Batch Job
Seed Job
Number of jobs per seed

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Job Handler

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Batch Builder

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Configuration

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Engine Plugin

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Monitoring and Recovery

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Example – manual started

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Example – amount of data

21. stefan.becke@kuehne-nagel.com patrick.schalk@holisticon.de
simon.zambrovski@holisticon.de
github.com/camunda/camunda-bpm-custom-batch