The document discusses the Infinitic framework, which is an event-based RPC mechanism designed to help build an infrastructure of distributed microservices on top of Pulsar. It covers Infinitic's features, including scalability, workflow orchestration, and resilience, as well as its current status and future roadmap. Infinitic aims to simplify complex business requirements through seamless integration, making the deployment of microservices more efficient and manageable.

1. Pulsar Virtual Summit North America 2021
Infinitic:
Building a Workflow
Engine on Top of Pulsar

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Gilles Barbier
Infinitic Creator
Building workflow engines for 10 years
- Leetix (SAAS) automation marketing
- Zenaton (SAAS) workflow builder for developers
- Infinitic (F/OSS) orchestration engine at scale
Building in public => https://infinitic.substack.com

3. Pulsar Virtual Summit North America 2021
Today you will learn
● What Infinitic is, and how it can help you build an
infrastructure of distributed microservices
○ providing a event-based RPC mechanism
○ easing the coding of complex business
requirements involving multiple
microservices
○ making your infrastructure scalable, resilient
and observable
● Status and Roadmap

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What Is Infinitic?
I. An event-based RPC framework for building distributed microservices
on top of Pulsar
II. A powerful workflow engine
Plugs into existing infrastructure
Seamless integration with Pulsar, requiring no Pulsar knowledge

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Microservices

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HTTP Architecture

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Event-Driven Architecture

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Infinitic: Event-Based RPC
Share services interfaces

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Infinitic: Client and Worker SDKs

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Infinitic Syntax: Asynchronous Call
Client
Service Interface

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Infinitic Syntax: Synchronous Calls
Client
Service Interface

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Infinitic: Failure Handling
getDurationBeforeRetry method
implements the retry strategy
Service Implementation

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Infinitic: Orchestration?

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Infinitic: Orchestration?
👎

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Infinitic: Event-Based RPC Orchestration
👍

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Infinitic: Event-Based RPC Orchestration
Workflow Interface
Client
Workflow Worker

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Infinitic: Code Your Workflows
https://infinitic.io/2020/10/13/code-is-the-best-dsl-for-building-workflows/
stubs
Workflow states are
automatically saved

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How does it work?
https://infinitic.io/2020/11/16/under-the-hood-of-an-event-driven-workflow-as-code-engine/

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Infinitic: Orchestration Features
● Sequential tasks
● Child - workflows
● Events
● Waiting
● Fan-out
● Fan-in
● Tags

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Infinitic: Orchestration Features
● Sequential tasks
● Child - workflows
● Events
● Waiting
● Fan-out
● Fan-in
● Tags

21. Pulsar Virtual Summit North America 2021
Infinitic: Orchestration Features
● Sequential tasks
● Child - workflows
● Events
● Waiting
● Fan-out
● Fan-in
● Tags

22. Pulsar Virtual Summit North America 2021
Infinitic: Orchestration Features
● Sequential tasks
● Child - workflows
● Events
● Waiting
● Fan-out
● Fan-in
● Tags

23. Pulsar Virtual Summit North America 2021
Infinitic: Orchestration Features
● Sequential tasks
● Child - workflows
● Events
● Waiting
● Fan-out
● Fan-in
● Tags

24. Pulsar Virtual Summit North America 2021
Infinitic: Orchestration Features
● Sequential tasks
● Child - workflows
● Events
● Waiting
● Fan-out
● Fan-in
● Tags

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Infinitic: Orchestration Features
● Sequential tasks
● Child - workflows
● Events
● Waiting
● Fan-out
● Fan-in
● Tags

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Infinitic Into An Existing Infrastructure

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Infinitic To Create Your Own Workflow DSL
Possible to reimplement json specification such as:
- Amazon States Language (Step functions)
- serverlessworkflow.io

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Infinitic Performance
Preliminary results obtained during last Pulsar
Hackathon (workflow with 6 dummy tasks)
● 20 workflows completed /s on a MacBook Pro
● 150 workflows completed /s on a small
production cluster
Additional optimizations are coming 🚀

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Infinitic Resilience
● Pulsar redundancies
● Task Workers redundancies
● Workflow Workers redundancies
● Technical issues -> automatic retry
● Unstoppable workflows:
○ Failed tasks can be handled
○ Timeout tasks can be handled

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Current Status
● Current version: v0.6.4
● Ready for PoC and MVP deployment
● Validated by a marketing company to power configurable
automated emails at scale
● Stable version: target end 2021

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Roadmap
● Dashboards! (Ideally based on Pulsar SQL)
● Deployed as Stateful Functions
● More workflow features
● Protobuf integration
● More languages (contributors welcome!)

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Using Infinitic
● Code: github.com/infiniticio/infinitic
● Documentation: docs.infinitic.io
● Subscribe to: infinitic.substack.com
● Solutions: infinitic.io

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Questions?