ParameterGroup

Source: src/AWS/MemoryDB/ParameterGroup.ts

A MemoryDB parameter group — a named collection of engine parameter overrides applied to every node of any Cluster that references it via parameterGroupName.

Parameter groups are free and provision instantly. Parameters not listed keep their engine defaults; removing a parameter from parameters resets it to the default.

Creating a Parameter Group

const params = yield* ParameterGroup("CacheParams", {
  family: "memorydb_valkey7",
  description: "LRU eviction for the session cache",
  parameters: { "maxmemory-policy": "allkeys-lru" },
});
const cluster = yield* Cluster("Cache", {
  aclName: acl.aclName,
  parameterGroupName: params.parameterGroupName,
});