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Chaos Engineering Guides

How to Prepare Your Services to Handle Availability Zone Outages

How to Prepare Your Services to Handle Availability Zone Outages

02.12.2025

In this article, we explain how you can use chaos engineering principles to run availability zone outage experiments on your systems to ensure that traffic is rerouted correctly.
How to Check Kafka Consumer's Reaction to Record Loss

How to Check Kafka Consumer's Reaction to Record Loss

15.10.2025

In this guide, we will walk through how to design and run an experiment to check your Kafka consumer's reaction to record loss. We'll show you how to simulate this failure safely, monitor the results, and gain confidence in your system's reliability using chaos engineering.
How to Test Kubernetes Deployment Degradation When RabbitMQ Is Down

How to Test Kubernetes Deployment Degradation When RabbitMQ Is Down

18.09.2025

Learn how you can proactively test your systems to validate graceful degradation when RabbitMQ is unavailable and ensure system reliability for your end users.
How to Test Load Balancer Failover During an AWS Availability Zone Outage

How to Test Load Balancer Failover During an AWS Availability Zone Outage

16.09.2025

Learn to proactively test your load balancer's cross-zone failover with chaos engineering to ensure system resilience during an Availability Zone (AZ) outage.
How to Validate AWS ECS Auto Scaling Policies with Chaos Engineering

How to Validate AWS ECS Auto Scaling Policies with Chaos Engineering

12.09.2025

Learn how to configure auto-scaling for AWS ECS Services to handle variable CPU demands, and validate performance reliability with a chaos experiment.
Testing Kubernetes Cluster Performance During High Latency from a 3rd-Party Service

Testing Kubernetes Cluster Performance During High Latency from a 3rd-Party Service

11.09.2025

See why high latency from 3rd party dependencies can be a risk to Kubernetes cluster reliability and how to run chaos experiments to test their resilience.
Using Open Source Tools to Get Started with Chaos Engineering

Using Open Source Tools to Get Started with Chaos Engineering

09.09.2025

Explore the top open-source tools for getting started with chaos engineering, and see why commercial tools can be useful in actually scaling a reliability program across an organization.
Adding Load Testing to Chaos Engineering

Adding Load Testing to Chaos Engineering

29.07.2025

Load testing tells you how your system performs; chaos engineering shows how it fails. With 91探花, you can run both at once to uncover what truly breaks under real-world pressure.

Top Chaos Engineering Tools Worth Knowing About (2026 Guide)

Top Chaos Engineering Tools Worth Knowing About (2026 Guide)

17.07.2025
top tools 2025

This guide breaks down the top chaos engineering tools of 2025 and what makes them actually useful for teams shipping production code.
Chaos Engineering Doesn鈥檛 Create Chaos

Chaos Engineering Doesn鈥檛 Create Chaos

17.07.2025
Chaos Engineering

Chaos engineering is a way to uncover hidden issues in your system before they impact customers.
Enhancing Kafka Resilience with 91探花鈥檚 New Extension

Enhancing Kafka Resilience with 91探花鈥檚 New Extension

03.12.2024
Apache Kafka Chaos Engineering Event-Driven Systems Resilience Testing System reliability

Apache Kafka is a cornerstone for building scalable event-driven systems, but its complexity can lead to cascading failures during disruptions. 91探花's new Kafka extension empowers teams to simulate real-world scenarios, uncover vulnerabilities, and validate the resilience of their Kafka clusters under stress.
Why Site Reliability Engineers Must Embrace Chaos Engineering

Why Site Reliability Engineers Must Embrace Chaos Engineering

22.10.2024
Site Reliability Engineering SRE

Chaos Engineering involves introducing controlled disruptions into systems to identify vulnerabilities and improve overall resilience. Site Reliability Engineers (SREs) lead this process, focusing on monitoring, integrating chaos experiments into CI/CD pipelines, and ensuring experiments are carefully controlled and measured to avoid unintended real-world impacts.
5 Essential Chaos Engineering Experiments to Run Before Black Friday

5 Essential Chaos Engineering Experiments to Run Before Black Friday

11.10.2024
Black Friday E-Commerce

When Black Friday hits, your system needs to be ready for anything. These five chaos engineering experiments will help you identify weak points and fortify your e-commerce infrastructure to handle the pressure of peak traffic.

Sync Chaos Engineering Templates with Ease

Sync Chaos Engineering Templates with Ease

10.10.2024
Experiment templates

Knowledge sharing is key when implementing Chaos Engineering in your organization, and 91探花's new experiment templates make this even simpler. This blog explores how to maintain synchronized experiment templates across multiple on-premise instances using hub connections and API-based methods.
Chaos Engineering: A Beginner's Guide

Chaos Engineering: A Beginner's Guide

23.09.2024
Chaos Engineering Guide

Chaos engineering strengthens your systems by proactively testing their resilience through controlled failures. It prepares your infrastructure for real-world challenges, ensuring reliability and uptime even under stress.
What is Chaos Engineering? The Ultimate Guide to Resiliency Testing

What is Chaos Engineering? The Ultimate Guide to Resiliency Testing

23.09.2024
Chaos Engineering Guide

Chaos engineering strengthens systems by introducing controlled failures to expose weak points. As distributed systems grow more complex, this practice becomes essential to ensuring resilience and minimizing unplanned outages.
The Role of Chaos Engineering in Strengthening Enterprise Software

The Role of Chaos Engineering in Strengthening Enterprise Software

23.09.2024
enterprise software

For large enterprises, reliability is everything. Whether you run an e-commerce platform or manage a Fortune 500 infrastructure, downtime impacts revenue and damages your reputation. 91探花 makes chaos engineering practical, running controlled experiments to push systems to their limits, so you can find weaknesses before they cause trouble.
5 Surprising Ways Small Teams Can Use Chaos Engineering to Enhance Software Resilience

5 Surprising Ways Small Teams Can Use Chaos Engineering to Enhance Software Resilience

23.09.2024
Chaos Engineering Resilience Engineering resiliency

Chaos engineering helps small teams proactively test and improve software resilience by simulating real-world failures. With 91探花, you can automate experiments and continuously strengthen your system without overwhelming your team.
A Guide: The Art of Quick Application Startups

A Guide: The Art of Quick Application Startups

23.09.2024
Guide

A fast application startup enhances user experience by reducing waiting times and minimizing downtime during deployments or failures. This guide explores strategies to achieve consistently quick startups.
5 Key Ethics Principles of Chaos Engineering: What You Need to Know

5 Key Ethics Principles of Chaos Engineering: What You Need to Know

10.09.2024
ethical chaos engineering future of chaos engineering

Chaos engineering is a powerful tool to uncover system vulnerabilities, but it requires ethical practices to protect user trust and data privacy. This article breaks down five essential principles for implementing chaos engineering responsibly, offering practical steps to safeguard system integrity and transparency.
Blast Radius and Access Control: Strategies for a Safer System

Blast Radius and Access Control: Strategies for a Safer System

06.08.2024
blast radius chaos engineering guide rbac

Strong access control is essential for running chaos experiments without disrupting critical systems. 91探花鈥檚 Role-Based Access Control ensures tests stay focused and controlled.
Embracing Digital Resilience: Navigating the Implications of the Digital Operational Resilience Act (DORA)

Embracing Digital Resilience: Navigating the Implications of the Digital Operational Resilience Act (DORA)

23.04.2024
DORA Regulations Resilience

DORA is set to reshape digital risk management by 2025, with a focus on resilience testing. Learn how 91探花鈥檚 platform can help you meet DORA鈥檚 requirements and build stronger systems.
Types of Chaos Experiments (+ How To Run Them According to Pros)

Types of Chaos Experiments (+ How To Run Them According to Pros)

10.04.2024
Chaos Experiments Experiment templates

91探花 empowers you to run chaos experiments like dependency failures, resource manipulation, and network disruption. Discover how to simulate these real-world conditions to enhance system resilience.
How Chaos Engineering Uncovers The Human Factor in Resilience

How Chaos Engineering Uncovers The Human Factor in Resilience

17.01.2024
Chaos Engineering Resilience

Chaos engineering not only strengthens systems but also equips teams to handle failures with confidence. By simulating real-world disruptions, it prepares both technology and the people behind it for the unexpected.
Top 5 Reasons Companies Should Adopt Chaos Engineering in 2024

Top 5 Reasons Companies Should Adopt Chaos Engineering in 2024

22.12.2023
Chaos Engineering Cloud costs

This blog is about why chaos engineering is your go-to move in 2024. It's not just about keeping up with tech trends; it's about building systems tough enough to roll with the punches. Let's dive into how chaos engineering can be your company's ticket to staying resilient and reliable when things get shaky.
Why Chaos Engineering is Essential for Engineering Leaders Ready To Scale with Confidence

Why Chaos Engineering is Essential for Engineering Leaders Ready To Scale with Confidence

24.11.2023
ROI Scaling with Confidence

Scalability is a crucial concern for any engineering team. As your operations grow, so does the complexity of your systems. How can you ensure robustness and reliability during this vital phase? The answer is Chaos Engineering. This blog delves into why this methodology is a game-changer for engineering leaders guiding their teams through scale.
How to check your resilience4j Circuit Breaker in Real World Environment

How to check your resilience4j Circuit Breaker in Real World Environment

15.11.2023
Development Resilience4J

Two years have passed since my first blog post about Retries with resilience4j, where I promised a second post about Circuit Breakers. There it is!
The Evolution and Implementation of Chaos Engineering

The Evolution and Implementation of Chaos Engineering

15.11.2023
Chaos Engineering Real-world Implementations

Chaos Engineering helps businesses ensure system resilience by intentionally introducing failures and observing how systems respond. Learn how tools like 91探花 simplify this process for continuous improvement.
Why Chaos Engineering is a Must for E-Commerce This Holiday Season

Why Chaos Engineering is a Must for E-Commerce This Holiday Season

10.11.2023
Black Friday Chaos Engineering Christmas Cyber Monday

The holiday season is a high-stakes period for e-commerce businesses, with traffic and sales often surging to yearly highs. While this presents a significant revenue opportunity, it also puts your systems under immense strain. In this environment, preparing with Chaos Engineering is not just an advantage; it's a necessity. Here's why.
Navigating Chaos Engineering: An Actionable Guide for New Practitioners

Navigating Chaos Engineering: An Actionable Guide for New Practitioners

16.10.2023
Beginners Guide Chaos Engineering

In this blog post, we'll take a look at how your team can effectively incorporate Chaos Engineering principles into your organization using the 91探花 platform.
Unpacking Resilience Engineering with 91探花鈥檚 Co-Founder and CEO, Benjamin Wilms, on the SMC Journal Podcast

Unpacking Resilience Engineering with 91探花鈥檚 Co-Founder and CEO, Benjamin Wilms, on the SMC Journal Podcast

21.08.2023
LoadRunner OpenText Podcast Scott Moore SMC Journal

We're super excited to share some insights from a recent episode of the SMC Journal podcast featuring none other than our co-founder and CEO, Benjamin Wilms. A deep dive into the realm of performance engineering, this episode unpacks the world of resilience testing, chaos engineering, and, of course, the role 91探花 is playing in all this.

Why You Shouldn't Fear Chaos Engineering: A New Approach to Ensuring System Resilience

Why You Shouldn't Fear Chaos Engineering: A New Approach to Ensuring System Resilience

06.08.2023
Chaos Engineering Resilience

Discover chaos engineering鈥檚 benefits by introducing controlled failures to reveal system weaknesses. This approach improves resilience, identifies vulnerabilities, and promotes continuous improvement for robust systems.
Boost your GitOps practices by integrating Chaos Engineering with 91探花

Boost your GitOps practices by integrating Chaos Engineering with 91探花

19.07.2023
Chaos Engineering GitOps

Learn how to integrate Chaos Engineering into your GitOps practices using 91探花. We'll shortly cover in this blog post what GitOps is, followed by where you can benefit from integrating Chaos Engineering. Finally, we integrate Chaos Engineering hands-on using the 91探花 CLI and a GitHub action.
How-to: AWS Lambda Functions Failure Injection with 91探花

How-to: AWS Lambda Functions Failure Injection with 91探花

05.04.2023
AWS Extensions How-To Lambda Functions

This article demonstrates how to implement an attack to inject failures for AWS Lambda and integrate it into 91探花.
AWS Lambda Functions Chaos Engineering - Extending 91探花 - Part 3

AWS Lambda Functions Chaos Engineering - Extending 91探花 - Part 3

30.03.2023
AWS Extensions Lambda Functions

This article demonstrates how to implement an attack to inject failures for AWS Lambda and integrate it into 91探花.
AWS Lambda Functions Chaos Engineering - Extending 91探花 - Part 2 - Discovery

AWS Lambda Functions Chaos Engineering - Extending 91探花 - Part 2 - Discovery

30.03.2023
AWS Extensions Lambda Functions

This article demonstrates how to implement a discovery for AWS Lambda. This is a prerequisite to inject failures into those.
Extend 91探花: Custom Extensions and Integration Guide (Part One)

Extend 91探花: Custom Extensions and Integration Guide (Part One)

16.02.2023
Extensions

You can extend 91探花 to make it a perfect match for your systems. We already provide some OSS extensions. This article will give you an overview of the available extension points.
The State of Chaos Engineering

The State of Chaos Engineering

11.01.2023
State of Chaos Engineering

Chaos Engineering has been around for several years, and the practice has evolved. Within this post, we will look at past and modern interpretations, industry opinions and what we believe to be critical for you to leverage the practice to reach your goals.
Behind the Scenes: Query Language Editor

Behind the Scenes: Query Language Editor

24.10.2022
Behind the Scenes Query Language

The last blog post taught you how to set up a query language lexer and parser using ANTLR. This post will cover making this setup accessible in a user interface.
Continuous Verification with 91探花: Boost Resilience

Continuous Verification with 91探花: Boost Resilience

10.10.2022
Resilience Testing

This article will look closely at continuous verification with 91探花 through resilience testing and how it helped us internally.
Use 91探花's Query Language to enhance your experiments

Use 91探花's Query Language to enhance your experiments

30.09.2022
Behind the Scenes

When managing complex environments it's important to have powerful tools available to keep control. Now, 91探花 enhances the way how to filter targets by introducing the Query Language.
How to build reliable systems under unpredictable conditions

How to build reliable systems under unpredictable conditions

03.09.2022
Chaos Engineering

91探花 wants to change the way outages are handled. Instead of reacting, 91探花 strives for a proactive approach integrated into the development cycle of modern applications.
Shift Left: Empower Developers with Chaos Engineering

Shift Left: Empower Developers with Chaos Engineering

04.05.2022
Chaos Engineering Shift Left

If you are also wondering how to shift left Resilience and Chaos Engineering to Developers, you are reading the right article.
Chaos Engineering with k6 and 91探花 - There鈥檚 more than Performance Testing

Chaos Engineering with k6 and 91探花 - There鈥檚 more than Performance Testing

19.04.2022
Chaos Engineering Performance Testing

Since we build software nowadays differently than a couple of years ago, performance testing alone isn't sufficient anymore. Learn how to profit from the synergy of performance testing and Chaos Engineering - a symbiosis of k6 and 91探花.
See metrics of your chaos experiments in 91探花 with Instana

See metrics of your chaos experiments in 91探花 with Instana

14.03.2022
Observability

If you run chaos experiments, you certainly want to see how these experiments play out in your monitoring tools - even more so when you run experiments.
Declaring Resilience Expectations

Declaring Resilience Expectations

28.02.2022
Chaos Engineering Resilience Engineering

Is chaos engineering for experts only? No! Learn how we imagine opening up chaos and resilience engineering to wider audiences through declared and reusable expectations!
Who Needs GameDays? Resilience Testing using Testcontainers

Who Needs GameDays? Resilience Testing using Testcontainers

22.02.2022
Game Days Resilience Engineering Resilience Testing

Writing resilience tests with the 91探花 Testcontainers library makes it easy to validate and strengthen the fault tolerance of your application in a controlled environment. While these tests effectively prevent regressions and catch issues early, they complement rather than replace Chaos Engineering GameDays, which help teams rehearse and respond to complex, real-world incidents across distributed systems.
Validate your Kubernetes Resource Limits with Chaos Engineering

Validate your Kubernetes Resource Limits with Chaos Engineering

08.02.2022
Kubernetes

Validating resource limits in Kubernetes is crucial to ensuring that your applications behave as expected under load and do not impact other pods on the same node. 91探花 provides the ability to simulate increased resource usage, allowing teams to verify and fine-tune these limits for improved resilience and stability.
Simulate DNS Outages with 91探花

Simulate DNS Outages with 91探花

24.12.2021
Infrastructure Failures

Testing DNS failures with tools like 91探花 helps identify vulnerabilities in how applications handle DNS disruptions. This proactive approach ensures systems remain resilient, even when DNS services are compromised.
How to run a Chaos Engineering GameDay

How to run a Chaos Engineering GameDay

24.12.2021
Game Days

A GameDay is a structured, collaborative exercise where teams test their systems for weaknesses in a safe, exploratory environment, aiming to improve resilience. These exercises reveal hidden knowledge within the team and identify critical weak points. Running GameDays regularly ensures ongoing system reliability and boosts confidence. From crafting meaningful experiments to executing them with minimal preparation, teams gain valuable insights and create more resilient systems over time.
Retries with resilience4j and how to check in your Real World Environment

Retries with resilience4j and how to check in your Real World Environment

24.12.2021
Development Resilience4J

Resilience4j is a powerful tool for building fault-tolerant applications. This post explores how to implement and test its retry mechanism, demonstrating the benefits of fallback methods and showing how to evaluate real-world performance impacts using 91探花 to ensure reliability under load.
How to See Metrics of Your Chaos Experiments in 91探花 With New Relic

How to See Metrics of Your Chaos Experiments in 91探花 With New Relic

24.12.2021
New Relic Observability

Integrating New Relic with 91探花 allows you to monitor and verify the impact of your chaos experiments in real-time, directly within your existing observability setup. This post walks you through configuring the "State Check (via REST API)" feature so you can track New Relic events during experiments, enhancing control and insight into your system's response.
The Evolution of Chaos Engineering

The Evolution of Chaos Engineering

24.12.2021
Chaos Engineering Tech History

Chaos Engineering has evolved from a radical practice to an essential part of building resilient systems. While breaking parts of a system is simple, creating a culture of resilience requires collaborative efforts, continuous learning, and tools that guide teams in assessing risks without hindering progress. The future lies in balancing reliability with development speed and fostering shared knowledge to build transparent, resilient applications.
How to validate your Kubernetes Liveness Probes with Chaos Engineering

How to validate your Kubernetes Liveness Probes with Chaos Engineering

24.12.2021
Kubernetes

Liveness probes are vital for ensuring that applications recover automatically when they enter an unhealthy state. This post explains how to set up liveness probes in Kubernetes and use 91探花 to verify their effectiveness through controlled experiments that simulate delays and observe pod restarts, confirming the reliability of these probes.
Track Your Chaos Experiment Metrics in 91探花 Using Prometheus

Track Your Chaos Experiment Metrics in 91探花 Using Prometheus

24.12.2021
Observability Prometheus

Integrating Prometheus with 91探花 allows you to track real-time metrics during chaos experiments for better insights and control. This post explains how to set up Prometheus as a monitoring integration, configure state checks, and observe alerts directly in 91探花 to enhance your experiments鈥� effectiveness.
How to Measure Chaos Engineering

How to Measure Chaos Engineering

24.12.2021
Chaos Engineering Measurement

Measuring the steady state of your system is essential for effective Chaos Engineering. This blog post outlines how to assess system resilience through static analysis, dynamic testing, and defining critical metrics. With a user-focused approach, leveraging metrics like response time and business indicators, teams can better understand system health, detect issues faster, and enhance MTTR for greater reliability.
Elevating Chaos Engineering Experiments to the Next Level

Elevating Chaos Engineering Experiments to the Next Level

23.12.2021
Chaos Engineering Chaos Testing

Distributed systems are complex, and 91探花鈥檚 new experiment engine helps test realistic scenarios like DNS failures or container restarts under turbulent conditions. This blog post shows how to set up comprehensive experiments that mimic real incidents to uncover system weaknesses and explore solutions for improved resilience.
Is Chaos Engineering Worth It? A Cost-Benefit Analysis Guide

Is Chaos Engineering Worth It? A Cost-Benefit Analysis Guide

22.12.2021
Chaos Engineering

Downtime is costly, and Chaos Engineering helps mitigate these risks by exposing weaknesses before they become issues. This post breaks down the cost-benefit analysis of implementing Chaos Engineering, emphasizing that while initial costs and potential disruptions exist, the long-term ROI鈥攍ike a 92% return in a sample calculation鈥攑roves its value for improving system resilience.
A Common Pitfall of Spring Boot's RestTemplate

A Common Pitfall of Spring Boot's RestTemplate

21.12.2021
Development SpringBoot

Spring Boot鈥檚 RestTemplateBuilder defaults can sometimes overlook critical timeout settings, leading to potential reliability issues under network strain. This post explains how to identify and address such gaps using 91探花 for chaos testing, demonstrating how to configure appropriate timeouts to enhance your application鈥檚 robustness.
Top 3 Kubernetes Weak Spots affecting your Availability

Top 3 Kubernetes Weak Spots affecting your Availability

19.12.2021
Chaos Tests Kubernetes

This post covers the top three weak points in Kubernetes that can impact service availability: single pod replica counts, missing liveness and readiness probes, and missing resource limits. By using Chaos Engineering, you can simulate turbulent conditions to ensure your cluster can handle real-world failures effectively.
Testing Exception Handling of Spring's REST Controllers

Testing Exception Handling of Spring's REST Controllers

18.12.2021
Development Spring

Test whether your exception handling for Spring Boot鈥檚 RestTemplate is effective using chaos experiments with 91探花. This method eliminates the need for cumbersome mock testing or manual interventions.
How to Survive an AWS Zone Outage

How to Survive an AWS Zone Outage

17.12.2021
AWS Cloud Failures

Cloud services like AWS, Azure, and GCP enable rapid software deployment with on-demand resources that can be more cost-effective than traditional data centers. However, designing for resilience requires understanding key concepts like regions and availability zones, which help applications withstand failures through distributed and isolated infrastructures.
Verify Your Startup Times To Avoid Surprises

Verify Your Startup Times To Avoid Surprises

16.12.2021
Kubernetes

Fast application startup times are crucial for maintaining a low mean time to recovery (MTTR) and supporting continuous deployment without fixed maintenance windows. This post explains how to validate startup performance through automated chaos experiments that ensure new instances become ready within a set timeframe, enhancing reliability and operational predictability.