Serverless architectures are application designs that incorporate third-party “Backend as a Service” (BaaS) services, and/or that include custom code run in managed, ephemeral containers on a “Functions as a Service” (FaaS) platform. By using these ideas, and related ones like single-page applications, such architectures remove much of the need for a traditional always-on server component. Serverl

Why People Want Microservices.md マイクロサービス化が進む背景について考えてみた 最近マイクロサービスって流行ってますよね。バズってると言ってもいいくらい。 個人的には、「マイクロサービスって結局何なの？」とか、「SOAと何が違うわけ？」とかいう議論は苦手です。 でも「なんでみんなマイクロサービスで作りたいのか？なんでマイクロサービスで作られるサービスが多いのか？」にはすごく興味があるんです。 僕は今、シリコンバレーにある日系SIerの小さな子会社で駐在員をやっていますが、このエリアに居ると、とにかく最近、 「サービス全体が、独立した小さなサービスの集合で構成されるようになってきている」 という流れがあるのは実感できます。もうそれが前提みたいになってるくらい。普通サービスって依存サービスを幾つか呼び出しますよね？ってところから始まるのが普通なくらい。 この記

Collection pipelines are a programming pattern where you organize some computation as a sequence of operations which compose by taking a collection as output of one operation and feeding it into the next. (Common operations are filter, map, and reduce.) This pattern is common in functional programming, and also in object-oriented languages which have lambdas. This article describes the pattern wit

Canary release is a technique to reduce the risk of introducing a new software version in production by slowly rolling out the change to a small subset of users before rolling it out to the entire infrastructure and making it available to everybody. Similar to a BlueGreenDeployment, you start by deploying the new version of your software to a subset of your infrastructure, to which no users are ro

Read it now on the O’Reilly learning platform with a 10-day free trial. O’Reilly members get unlimited access to books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers. Why don't typical enterprise projects go as smoothly as projects you develop for the Web? Does the REST architectural style really present a viable alternative for building distributed

Thoughtworks Technology Radar is a twice-yearly snapshot of tools, techniques, platforms, languages and frameworks. This knowledge-sharing tool is based on our global teams’ experience and highlights things you may want to explore on your projects. Adopt Trial Assess Hold Adopt Trial Assess Hold Adopt Trial Assess Hold Adopt Trial Assess Hold Adopt Trial Assess Hold Adopt Trial Assess Hold Adopt T

より詳細なCQRSに関する資料はこちら https://little-hands.hatenablog.com/entry/2019/12/02/cqrs 参考資料：http://little-hands.hatenablog.com/entry/jjug2017fall 社内新規プロダクトでDDD, CQRSの思想をベースとしたアーキテクチャを構築し、コマンド(更新系処理)ではSpring Data JPA(Hibernate)を、クエリ(参照系処理)ではjOOQを採用しました。 結果としてそれぞれのORMの良いところを生かした組み合わせのアーキテクチャが構築できたので、その経緯と得られた知見についてお話ししたいと思います。 以下のようなトピックを考えています。 ・CQRSの定義とメリットデメリット ・DDD,CQRSを検討するにあたってのORMの選定ポイント ・構築したアーキテクチャ

Sales commissions are almost universally used in the software business, as in all business sectors. They are liked because they align incentives between sales staff and the companies that employ them. Nevertheless there are serious problems with the sales commission model, problems that led Thoughtworks to get rid of all sales commissions in 2013. Martin Fowler 18 February 2013 How to use this Inf

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I've given lots of presentations, and since I go to a lot of conferences I see a lot too. This means I see a lot of problems, where people are doing things that reduce the efficacy of their talks. I've not tried to come up with a comprehensive list, so the ones I'm raising here are just a few things off the top of my head. Like most smells, these aren't always wrong, but should always make you thi