無法自動縮放 Redis 集群

Question

我在EU Frankfurt地區有一個 Redis 集群和R5.4xlarge實例。 我有 5 個分片，每個分片有 3 個副本。 我無法自動縮放此集群。 從 AWS 文檔中，我知道 AWS Elasticache 通過增加

1. 分片數量或
2. 副本數

來自文檔：-

ElastiCache for Redis supports scaling for the following dimensions:

Shards – Automatically add/remove shards in the cluster similar to manual online resharding. In this case, ElastiCache for Redis auto scaling triggers scaling on your behalf.

Replicas – Automatically add/remove replicas in the cluster similar to manual Increase/Decrease replica operations. ElastiCache for Redis auto scaling adds/removes replicas uniformly across all shards in the cluster.

但是，我無法找到基於指標自動縮放的規定。 EU Frankfurt地區的上述集群配置是否可以自動縮放，或者我是否遺漏了什么？

Answer 1

大小為4xlarge的實例禁用了自動縮放，這就是您找不到為集群啟用的“ Autoscaling縮放”選項卡的原因。 從 AWS 文檔https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/AutoScaling.html中，只有以下 AWS 實例及其大小支持自動縮放

ElastiCache for Redis Auto Scaling is limited to the following:

Redis (cluster mode enabled) clusters running Redis engine version 6.0 onwards

Instance type families - R5, R6g, M5, M6g

Instance sizes - Large, XLarge, 2XLarge

Auto Scaling in ElastiCache for Redis is not supported for clusters running in Global datastores, Outposts or Local Zones.

AWS Auto Scaling for ElastiCache for Redis is not available in the following regions: China (Beijing), China (Ningxia), AWS GovCloud (US-West) and AWS GovCloud (US-East).