Test how your application handles an Azure Cache for Redis outage. Run Gremlin network experiments and reliability tests to validate cache-miss handling.
Azure Cache for Redis is load-bearing in a way that is easy to underestimate. The database behind a well-used cache is sized for the traffic that reaches it, not the traffic the cache absorbs, and those two numbers can differ by an order of magnitude.
When the cache becomes unreachable, that gap closes instantly. Every request that would have hit memory goes to the database at once. The cache outage ends in minutes, but the database recovery takes considerably longer, and the incident gets recorded as a database problem.
Gremlin helps you prove resilience to cache failures. Blackhole experiments remove the cache endpoint from your application's view under realistic load, so you can watch what arrives at the database. Latency experiments simulate a degraded node, which tells you whether your timeouts are short enough that a slow cache does not become a slow application. Validate that your database can handle demand, even under the most difficult conditions.
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.
* Testing a dependency doesn't require installing anything on it. Gremlin runs the experiment from the service that calls it, so compatibility depends on that host rather than on the dependency itself. Check our compatibility documentation for supported operating systems and platforms, or get in touch if you don't see yours.
Intelligent Health Checks - Azure
Automatically monitor your Azure services during testing in one-click with Intelligent Health Checks.
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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