April 2025
Intermediate to advanced
276 pages
3h 37m
Japanese
Content preview from 実践 OpenTelemetry ―オープンなオブザーバビリティ標準を組織に導入する
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訳者まえがき
本書は書籍「Practical OpenTelemetry」の日本語訳です。 OpenTelemetry（しばしばOTelとも書かれ、「オーテル」と発音されたりします）を実践するにあたり、 その前提となるオブザーバビリティの知識と、OpenTelemetryの利点や活用でのポイントをまとめた本です。
翻訳時点では、OpenTelemetry仕様はv1.42.0です。これは原著の前提であるv1.16.0と比較するといくつもの更新があり、 代表的なものとしては次のものがあります。
シグナルのタイプとして、プロファイリングが追加されています。 プロファイリングは、コードレベルでCPUやメモリのリソース使用状況に関する洞察が得られ、 メトリクスやログなど他のテレメトリーと合わせて問題解決ができるようになります。
「自動計装」という用語が「ゼロコード計装」と呼ばれるようになっています。 これについては4章で補足しています。
OpenTelemetry Connectorのコンポーネントタイプとして、コネクターが追加されています。 これについては9章で補足しています。
他にも、セマンティック規約の追加や新たなライブラリ計装の追加、さらに仕様や実装のステータスの変更などを含めると、 把握しきれないほどさまざまな変更があります。 OpenTelemetryやKubernetesなどのオープンソースプロジェクトを管理するCloudNative Computing Foundation（CNCF）のブログ 「2024 year in review of CNCF and top 30 open source project velocity（https://www.cncf.io/blog/2025/01/29/2024-year-in-review-of-cncf-and-top-30-open-source-project-velocity/ ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.