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不器用で落着きのない技術者のメモ

Amazon KeySpaces の性能（スループット）とリトライ制御などについてのメモ

AWS
  • On Demand モードならピークの倍まで瞬時にスケールアウト

Peak traffic and scaling properties

Amazon Keyspaces tables that use on-demand capacity mode automatically adapt to your application’s traffic volume. On-demand capacity mode instantly accommodates up to double the previous peak traffic on a table. For example, your application's traffic pattern might vary between 5,000 and 10,000 LOCAL_QUORUM reads per second, where 10,000 reads per second is the previous traffic peak.

Read/write capacity modes in Amazon Keyspaces - Amazon Keyspaces (for Apache Cassandra)
  • 最初からピークワークロードに耐えるシャードを用意したければ、On Demand モードでスケールアウトしてから Provisoned に変更する

Considerations when changing capacity modes

（中略）
When you switch from on-demand capacity mode back to provisioned capacity mode, your table delivers throughput that is consistent with the previous peak reached when the table was set to on-demand capacity mode.

Read/write capacity modes in Amazon Keyspaces - Amazon Keyspaces (for Apache Cassandra)


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