November 2019
Beginner to intermediate
406 pages
9h 21m
Chinese
Content preview from Java持续交付
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收集和存储
｜
349
Prometheus
Prometheus
（
https://prometheus.io/
）是一个开源的系统监控和报警工具集，最初由
SoundCloud
创建。它现在是一个被独立维护的开源项目（托管在
CNCF
），有许多企业
的开发人员都在为它贡献代码。
Prometheus
从根本上将所有数据存储为时间序列，即属
于同一指标和相同标签维度集合的时间戳数据流。
Prometheus
非常适合记录纯数字的时
间序列，可以用来监控大规模的机器，以及高度灵活的服务化架构。对于微服务来说，
Prometheus
的独特优势在于支持对多维数据的收集和查询。
Prometheus
自己提供了一个
Java SDK
（
https://github.com/prometheus/client_java
）， 支
持之前讨论的所有指标类型。但是，
Prometheus API
无法用于其他的平台，因此我们建
议使用一个与平台无关的库，然后再将其与
Prometheus
集成起来。所有主流的指标库都
提供了与
Prometheus
的集成，包括
Dropwizard/Codahale Metrics
（
http://bit.ly/2OebIIr
）、
Micrometer
（
http://bit.ly/2NMqZ3I
）和
Spring Boot Actuator/Metrics
。存储在
Prometheus
中的指标可以通过
Grafana
（
http://bit.ly/2Oi4YcA
）实现可视化展现。
Elastic-Logstash-Kibana ...
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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.