Amazon Web Services, Inc.(AWS)は、AWS re:Invent にて、最新のAmazon AuroraとAmazon DynamoDB機能、新たな2つの専用データベースを発表しました。

Amazon Aurora GlobalDatabaseは、AWSリージョン内の1つでデータベースをアップデートし、自動で他のリージョンにその複製を作成することで、可用性とディザスタリカバリ能力を高めます。Amazon DynamoDBの新たなオンデマンド機能は、リードとライトのキャパシティプロビジョニングを提供することでキャパシティプランニングをなくしており、課金はリードとライトを使用した分だけになるとのことです。

開発者は DynamoDB Transactionsにより、複数アイテムをアップデートする際のトランザクション保証の構築、高度な拡張ができ、ビジネスクリティカルなアプリケーションを開発する際のコンフリクトやエラーを避けることができます。

新たな専用データベースは、IoTと運用アプリケーション向けの高速で拡張可能なフルマネージドの時系列データベース「Amazon Timestream」と、高度に拡張可能で変更不可能、暗号的に検証可能な台帳データベース「Amazon Quantum Ledger Database(QLDB)」の2つ。どちらも、プレビュー版の提供を開始します。

Amazon Timestreamは、汎用リレーショナルデータベースの10分の1 のコストと最大1,000倍高速なクエリ性能で、1日当たり何兆ものイベントを処理できるとのこと。また、分析機能は平滑化、近似、補間を実行でき、リアルタイムデータの傾向とパターンを特定することができます。

Amazon QLDBは、変更不可能、透過的で暗号的に検証できる台帳を使用することで、一元管理され、信任を得た機関の中で複数の関係者が処理する記録システムとして機能するアプリケーションを開発することができます。また、複雑な監査機能をリレーショナルデータス内に構築するなど、ブロックチェーンフレームワークの台帳機能に依存する必要がなくなます。

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