2018-04-03 Meeting notes: metrics demo

Demo

 Docker compose

• Requires maintenance

• Limits those working in more professional environments

• More for a getting started audience

• Requires testing with each release 

• Node to run with Prometheus integration

• When you run the node in the default mode, Prometheus needs to be able to scrape

  • This is in place

  • Next step

    • Expose extensive metrics on the system and JVM

    • Node to expose the metrics

• Metrics to expose for Node-0.3

  • CPU - CPU seconds consumed, it's a counter, CPU seconds consumed/interval of scraping 

  • Ram

  • Disk 

  • Network core metrics at the node level

  • JVM performance

  • Garbage collection

  • Size of memory pools

  • Consumption of memory pools

  • Doc needs to describe how to integrate with an existing Prometheus, (if wanted) how to integrate with Docker compose

  • Doc how to export metrics from Scala

    • Pawel to create template 

    • Jeremy can then fill it out

• Testing metrics

  • We need to create test to validate the outcomes

    • Node comes up

    • Node publishes metrics

    • Metrics are scrapable with Prometheus

    • Metrics are scrapable with Docker compose and match

• At end

  • Rholang team should be able to integrate with the metric monad to look at performance 

  • Everyone needs to be able to find the Kamon interface and interact with it

  • Need a doc for this

  • Need a doc for how to capture metrics

    • Don't d

    • Publish counters and not gauges

    • Publish the numerator and denominator as separate metrics

• IDEA get Pawel to write one metric in the way he likes as an example

  • Set up a session and record