Page Comparison

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As mentioned in issues/decisions, there are two alternative ways of representing memory trends: Grafana and GNUPlotGnuPlot.

Grafana

EST has its own Prometheus and Grafana

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(externally accessible, no need to install Globalprotect) and it can be configured to show cps-and-ncmp memory trends.
Link to EST Grafana: https://monitoring.nordix.org/login

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Through prometheus.yml (of EST), a new scrape_configs for the cps-and-ncmp microservice can be added

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.

scrape_configs:
- job_name: 'cps-and-ncmp'
  metrics_path: '/actuator/prometheus'
  scrape_interval: 5s
  static_configs:
    - targets:
      - 'cps-and-ncmp:8080' // replace by <physical-server-ip:port>

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Also, the dashboard provider and dashboard config (jvm-micrometer-dashboard.json) can be added.

providers:
  - name: default
    orgId: 1
    type: file
    options:
      path: /var/lib/grafana/dashboards
      foldersFromFilesStructure: true

Then, the trend of G1 Old Gen space can be observed as seen below:

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Permanent Storage Alternatives

Prometheus

Configuring the Prometheus with a persistet volume to retain data is possible.

GNUPlot

GnuPlot can also draw a plot for only G1 Old Gen space

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.