Introduction

With this action, Steadybit can reduce the Redis maxmemory configuration to force key evictions or OOM errors on a Redis instance.

Warning: Using eviction policies like allkeys-lru, allkeys-lfu, or allkeys-random will permanently delete keys when the memory limit is reached. Evicted data cannot be recovered. The default policy noeviction is recommended as it returns OOM errors instead of deleting data.

Use Cases

• Force key evictions to verify application handles missing keys gracefully.
• Test OOM behavior by reducing maxmemory below current usage.

Parameters

Parameter	Description	Default
Duration	How long to apply the memory limit.	60s
Max Memory	Memory limit (e.g., '10mb', '1gb', or bytes).	10mb
Eviction Policy	Eviction policy to apply: noeviction, allkeys-lru, allkeys-lfu, allkeys-random, volatile-lru, volatile-ttl, or keep (original). Caution: allkeys- policies permanently delete data.*	noeviction