Operational Plugin: Metrics

[gcotelli]

One of the operational plugins (#41) .

• Endpoint /operations/metrics
• Must be possible to configure this plugin with additional metrics to report.

Supported operations:

• Report metrics about the running application

Examples

GET /operations/metrics

To Do: Define the output format, but the info must include:

Virtual Machine Statistics
--------------------------
uptime			0h53m32s
memory			99,753,984 bytes
	old			90,801,952 bytes (91.0%)
	young		4,022,440 bytes (4.0%)
	used		67,200,720 bytes (67.4%)
	free		27,623,672 bytes (27.700000000000003%)
GCs				486 (6610ms between GCs)
	full			1 totalling 87ms (0.0% uptime), avg 87.0ms
	incr		485 totalling 448ms (0.0% uptime), avg 0.9ms
	tenures		45,864 (avg 0 GCs/tenure)
Since last view	1 (1002ms between GCs)
	uptime		1.0s
	full			0 totalling 0ms (0.0% uptime)
	incr		1 totalling 1ms (0.1% uptime), avg 1.0ms
	tenures		0

[gcotelli]

Format supported by Prometheus and OpenTSDB
https://docs.google.com/document/d/1ZjyKiKxZV83VI9ZKAXRGKaUKK2BIWCT7oiGBKDBpjEY/edit#heading=h.wnviarbnyxcj

[gcotelli]

https://openmetrics.io/