Smith 37 11 Sally Smith 35 … 24 Dan Smith 12 user id street city state user_id 1 123 Main St Boston MA 10 2 617-123-4567 35 EMPTY 11 … 15 EMPTY EMPTY EMPTY 21 … address SELECT * FROM users JOIN address ON users.id = address.user_id WHERE users.id = 10 取得したい情報が複雑になると増える (JOIN の数、Run Time) id 以外の条件で絞るためには別設定が必要 (検索条件の対象 Column Indexing)
Scaling An instance was launched to aid in balancing the group's zones * Source : https://kubernetes.io/ko/docs/tutorials/kubernetes-basics/explore/explore-intro/ 予期せぬ挑戦とその解決策の話(その②) 原因:ASG による AZ rebalancing で Node が調整され Pod が Killed Availability Zone rebalancing (Reference) After certain actions occur, your Auto Scaling group can become unbalanced between Availability Zones. Amazon EC2 Auto Scaling compensates by rebalancing the Availability Zones.