# AWS Fault Injection Service (FIS)

Managed AWS service for controlled fault injection experiments on AWS workloads to improve application resilience and performance.

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## Testing application resilience with Amazon SQS and AWS Fault Injection Service

DevFeed: [Testing application resilience with Amazon SQS and AWS Fault Injection Service](<https://devfeed.tech/articles/testing-application-resilience-with-amazon-sqs-and-aws-fault-injection-service-4651.md>)

Original publisher: [Read original article](<https://aws.amazon.com/blogs/architecture/testing-application-resilience-with-amazon-sqs-and-aws-fault-injection-service/>)

Author: Richard Whitworth

Published: 2026-09-09T21:33:59Z

Content type: tutorial

Language: en

Sources: [AWS Architecture Blog](<https://devfeed.tech/sources/aws-architecture-blog.md>)

Topics: [Amazon Simple Queue Service (SQS)](<https://devfeed.tech/topics/amazon-simple-queue-service-sqs.md>), [AWS Fault Injection Service (FIS)](<https://devfeed.tech/topics/aws-fault-injection-service-fis.md>), [Chaos Engineering](<https://devfeed.tech/topics/chaos-engineering.md>), [AWS IAM](<https://devfeed.tech/topics/aws-iam.md>), [AWS Identity and Access Management (IAM)](<https://devfeed.tech/topics/aws-identity-and-access-management-iam.md>)

Tags: [advanced-300](<https://devfeed.tech/tags/advanced-300.md>), [amazon-cloudwatch](<https://devfeed.tech/tags/amazon-cloudwatch.md>), [amazon-simple-queue-service-sqs](<https://devfeed.tech/tags/amazon-simple-queue-service-sqs.md>), [amazon-sqs](<https://devfeed.tech/tags/amazon-sqs.md>), [automation](<https://devfeed.tech/tags/automation.md>), [aws](<https://devfeed.tech/tags/aws.md>), [aws-fault-injection-service-fis](<https://devfeed.tech/tags/aws-fault-injection-service-fis.md>), [experiments](<https://devfeed.tech/tags/experiments.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [iam](<https://devfeed.tech/tags/iam.md>), [observability](<https://devfeed.tech/tags/observability.md>), [resilience](<https://devfeed.tech/tags/resilience.md>), [technical-how-to](<https://devfeed.tech/tags/technical-how-to.md>), [testing](<https://devfeed.tech/tags/testing.md>)

### AI overview

A tutorial on testing application resilience when Amazon SQS data-plane operations fail. It uses AWS Fault Injection Service and Systems Manager Automation to progressively deny queue access, evaluate recovery and observability with CloudWatch metrics, and avoid IAM deny-policy lockouts.

### Source excerpt

Learn how to use AWS Fault Injection Service and AWS Systems Manager Automation to run progressive chaos experiments against Amazon SQS queues. Validate that your retry logic, circuit breakers, and dead-letter queues actually work under failure before a real outage hits production.

## Validating multi-Region DR for Terraform Enterprise with AWS FIS

DevFeed: [Validating multi-Region DR for Terraform Enterprise with AWS FIS](<https://devfeed.tech/articles/validating-multi-region-dr-for-terraform-enterprise-with-aws-fis-4653.md>)

Original publisher: [Read original article](<https://aws.amazon.com/blogs/architecture/validating-multi-region-dr-for-terraform-enterprise-with-aws-fis/>)

Author: Frenil Randeria

Published: 2026-09-09T21:05:02Z

Content type: article

Language: en

Sources: [AWS Architecture Blog](<https://devfeed.tech/sources/aws-architecture-blog.md>)

Topics: [Terraform](<https://devfeed.tech/topics/terraform.md>), [AWS Fault Injection Service (FIS)](<https://devfeed.tech/topics/aws-fault-injection-service-fis.md>), [Chaos Engineering](<https://devfeed.tech/topics/chaos-engineering.md>), [Amazon S3](<https://devfeed.tech/topics/amazon-s3.md>), [Amazon EC2](<https://devfeed.tech/topics/amazon-ec2.md>), [Databases](<https://devfeed.tech/topics/databases.md>)

Tags: [advanced-300](<https://devfeed.tech/tags/advanced-300.md>), [amazon-aurora](<https://devfeed.tech/tags/amazon-aurora.md>), [amazon-ec2](<https://devfeed.tech/tags/amazon-ec2.md>), [amazon-s3](<https://devfeed.tech/tags/amazon-s3.md>), [aws](<https://devfeed.tech/tags/aws.md>), [aws-fault-injection-service-fis](<https://devfeed.tech/tags/aws-fault-injection-service-fis.md>), [disaster-recovery](<https://devfeed.tech/tags/disaster-recovery.md>), [postgresql](<https://devfeed.tech/tags/postgresql.md>), [technical-how-to](<https://devfeed.tech/tags/technical-how-to.md>), [terraform](<https://devfeed.tech/tags/terraform.md>), [validation](<https://devfeed.tech/tags/validation.md>)

### AI overview

This article explains how to validate customer-operated multi-Region disaster recovery for Terraform Enterprise on AWS using three-phase AWS FIS experiments. It covers failover and failback testing, hidden dependency discovery, and reported recovery times of 12-14 minutes.

### Source excerpt

Learn how AWS, HashiCorp, and Athenahealth designed and chaos-tested a multi-Region disaster recovery strategy for Terraform Enterprise on AWS. This post walks through three-phase AWS Fault Injection Service experiments across Amazon EC2, Aurora, and Amazon S3, the 12-14 minute recovery times achieved, and the state file dependency pitfall to avoid.

## Chaos Hub & MCP Prompt Library: Harness Resilience Testing

DevFeed: [Chaos Hub & MCP Prompt Library: Harness Resilience Testing](<https://devfeed.tech/articles/chaos-hub-mcp-prompt-library-harness-resilience-testing-13378.md>)

Original publisher: [Read original article](<https://www.harness.io/blog/chaos-hub-in-docs-prompt-library-for-mcp-whats-new-in-resilience-testing>)

Author: Pritesh Kiri

Published: 2026-08-05T00:00:00Z

Content type: article

Language: en

Sources: [Harness Blog](<https://devfeed.tech/sources/harness-blog.md>)

Topics: [Resilience](<https://devfeed.tech/topics/resilience.md>), [Chaos Engineering](<https://devfeed.tech/topics/chaos-engineering.md>), [Model Context Protocol](<https://devfeed.tech/topics/model-context-protocol.md>), [AWS Fault Injection Service (FIS)](<https://devfeed.tech/topics/aws-fault-injection-service-fis.md>), [MCP Server](<https://devfeed.tech/topics/mcp-server.md>), [Documentation](<https://devfeed.tech/topics/documentation.md>), [cursor](<https://devfeed.tech/topics/cursor.md>), [Claude](<https://devfeed.tech/topics/claude.md>)

Tags: [chaos](<https://devfeed.tech/tags/chaos.md>), [chaos-engineering](<https://devfeed.tech/tags/chaos-engineering.md>), [claude](<https://devfeed.tech/tags/claude.md>), [cursor](<https://devfeed.tech/tags/cursor.md>), [documentation](<https://devfeed.tech/tags/documentation.md>), [mcp](<https://devfeed.tech/tags/mcp.md>), [mcp-server](<https://devfeed.tech/tags/mcp-server.md>), [resilience](<https://devfeed.tech/tags/resilience.md>)

### AI overview

Harness Resilience Testing has added two documentation updates: Chaos Hub is now available directly in the documentation, and a Prompt Library provides ready-to-use prompts for running resilience workflows through Harness MCP using natural language.

### Source excerpt

New in Harness Resilience Testing: Chaos Hub now lives in the docs, plus a Prompt Library for running chaos experiments via MCP using natural language. | Blog