英文:
Does prometheus golang (echo-contrib) exporter saves metrics in memory?
问题
我有一个用于将指标导出到Prometheus的GoLang中间件，然后从/metrics端点提供这些指标。
我的问题是/metrics端点接收到的数据来自哪里？
它来自内存吗？
导出器链接：https://github.com/labstack/echo-contrib/tree/master/prometheus
英文:
I have a GoLang middleware for exporting metrics for prometheus, which are then served from /metrics endpoint
My question is where does the data received from /metrics endpoint come from?
Does it come from the memory?
Exporter link: https://github.com/labstack/echo-contrib/tree/master/prometheus
答案1
得分: 1
是的，指标的最后状态存储在被抓取目标的内存中。大多数使用Prometheus指标的实现是在Go程序中使用这个库构建的：https://github.com/prometheus/client_golang
被抓取的目标不会保存整个时间序列，而是由Prometheus负责跨时间存储这些值。
英文:
Yes, the last state of the metrics are stored in memory of the scraped target. Most of the implementation of prometheus metrics are built with this library in go programs: https://github.com/prometheus/client_golang
Your scraped target won't hold the whole time serie, it's prometheus role to store these values across time.
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