Memo/AmazonWebServices/ElastiCache

ElastiCache: Redis, Memcachedのマネージドサービス
- Valkey: RedisからforkされたOSS
- Redis
  - Redis nodeを減らす手順

ElastiCache: Redis, Memcachedのマネージドサービス †

Amazon ElastiCache （インメモリキャッシュ管理・操作サービス） | AWS

記事
- ElastiCacheのスケールアップは本当にダウンタイムなしでできるのか検証してみた！ #reinvent ｜ Developers.IO
- ElastiCacheはMemcachedとRedisのどっちを選ぶ？｜ Developers.IO

↑

Valkey: RedisからforkされたOSS †

Redisライセンス問題でforkされた
予約済みノードを Redis から Valkey OSSにアップグレードする
- RedisのRIからも20%割引状態で適用されるようだ。つまりRedis RI買った状態でValkeyへ移行してもRIが適用される。

記事:

ElastiCache リザーブドノードがサイズの柔軟性と Valkey にそれぞれ対応しました - サーバーワークスエンジニアブログ

ElastiCacheでValkeyがサポートされたけど何が良いのか検証してみた - CyberAgent SRG #ca_srg

↑

Redis †

記事

↑

Redis nodeを減らす手順 †

目的:

コスト削減等で、2台構成を1台構成にしたい

terraformを使った場合の手順:

2台構成のまま、以下の設定を無効にする。applyは2分程度かかる
```
num_cache_clusters = 2
multi_az_enabled = false
automatic_failover_enabled = false
```

1台に減らす。applyは5分程度かかる

num_cache_clusters = 1
multi_az_enabled = false
automatic_failover_enabled = false

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Memo/AmazonWebServices/ElastiCache

ElastiCache: Redis, Memcachedのマネージドサービス †

Valkey: RedisからforkされたOSS †

Redis †

Redis nodeを減らす手順 †

Software

Programming

Game

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