July 2019
Intermediate to advanced
480 pages
9h 35m
Chinese
Content preview from 持續交付｜使用Java
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
400
| 第十三章
圖 13-5 Pinpoint APM 產生的請求 / 回應散布圖
給開發者的視覺化
Kibana 之類的視覺化工具可以滿足開發者的許多需求，這類視覺化工具經常被當成
ELK 堆疊的一部分來使用。Grafana 把重心放在數據上，而圖 13-6 的 Kibana 把重心放
在 log 上，除了繪圖之外，也可以進行全文字（full-text）查詢。這項功能可以協助開發
者處理複雜的問題。
如果你正在使用分散式追蹤，許多這類的工具都提供圖形化介面，你可以查詢它們，讓
它們展示單一追蹤。如圖 13-7 所示，這種視覺化的好處是，它可讓你快速辨識某個用戶
操作產生的請求 / 回應流與資料流。長 span 可讓你找出長時間運行的程序，拆開的 span
可讓你快速地把焦點放在失敗的程序或服務上。
觀察機制：監視、log 與追蹤 |
401
圖 13-6 Kibana 儀表板
圖 13-7 Zipkin 追蹤
雖然命令列對許多開發者來說很有吸引力，但是你也可以藉著適當地運用視覺化來得到
許多幫助。在這個領域中，視覺化的核心目標是確保開發者能夠自助使用工具，並能夠
以最小的成本建立儀表板、圖表和追蹤查詢。
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.