Test AWS Batch on Fargate reliability with Gremlin Failure Flags. Inject latency and errors to validate job timeout and retry behavior.
Batch work on AWS Batch with a Fargate compute environment combines two conditions that hide failures well: nobody is watching while it runs, and there's no host to inspect afterward. A job that hangs on an unresponsive API doesn't crash and doesn't alert. It occupies a slot until something times out, if anything does.
The failure surfaces downstream, later, as output that's missing or incomplete. By then the diagnostic context is gone. Teams often can't tell whether a job failed cleanly, partially completed, or wrote results that look finished but aren't, and that ambiguity costs more than the failure itself.
Add Failure Flags to your job container and you can answer it before a deadline depends on the answer. Inject latency into an outbound call and confirm the job times out rather than hanging. Trigger an exception and check whether the failure reaches someone, or whether it settles into CloudWatch unread.
For unattended work, failing loudly is worth more than failing rarely.
Dependencies: Failure Test
Simulate a failed dependency by dropping all network traffic to the dependency.
Dependencies: Latency Test
Recreate poor network conditions by delaying all network traffic to a dependency by 100ms.
Unreliable Networks - Dependencies
Simulate unreliable network conditions when communicating with dependencies by adding latency to API calls. Test whether your users are affected when dependency response times degrade.
* Failure Flags works wherever you can add the SDK to your application and run the Gremlin sidecar. Not every language and platform combination has been individually tested, and not all are officially supported. Check our compatibility documentation for what's verified, or get in touch if you don't see your runtime.
Intelligent Health Checks - AWS
Automatically monitor your AWS services during testing in one-click with Intelligent Health Checks.
AWS integration
Integrate Gremlin with your AWS account for automatic Health Check creation, service discovery, and more.
Using Failure Flags by proxy
Use Failure Flags, Gremlin's application-level fault injection feature, without changing a single line of code.
Installing Gremlin on Amazon ECS
Learn how to install Gremlin on EC2-backed Amazon Elastic Container Service (ECS) deployments.
Installing Gremlin on AWS - Configuring your VPC
Amazon Web Services (AWS) has unique networking requirements that must be implemented for Gremlin to run successfully…
Avoid downtime. Use Gremlin to turn failure into resilience.
Gremlin empowers you to proactively root out failure before it causes downtime. See how you can harness chaos to build resilient systems by requesting a demo of Gremlin.
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