lhotari opened a new pull request, #592: URL: https://github.com/apache/pulsar-helm-chart/pull/592
### Motivation kube-prometheus-stack has been replaced by victoria-metrics-k8s-stack for Pulsar Helm Chart version 4.0.0 due to Prometheus incompatibility with Pulsar metrics since Pulsar 2.11.0 . Pulsar exposes metrics in a format that is partially OpenMetrics 1.0.0 text format, but isn't fully compatible. Prometheus doesn't provide proper support for OpenMetrics 1.0.0 text format, even in Prometheus version 3.2.1 where it was extensively tested before making the switch to Victoria MetricsVictoria Metrics is Apache 2.0 Licensed OSS and it's fully compatible with Prometheus. ### Modifications - replace kube-prometheus-stack with [victoria-metrics-k8s-stack ](https://github.com/VictoriaMetrics/helm-charts/blob/master/charts/victoria-metrics-k8s-stack/) which is Apache 2.0 Licensed OSS and it's fully compatible with Prometheus. - The Pulsar Helm Chart has pre-installed Grafana dashboards for Pulsar from various Apache 2.0 Licensed sources. These dashboards are outdated, and there's a separate project https://github.com/lhotari/pulsar-grafana-dashboards where the dashboards will be cleaned up and made fully compatible with Pulsar 4.0+ and Victoria Metrics. - In Pulsar, the Prometheus client_java library was updated to 0.15.0 with https://github.com/apache/pulsar/pull/13785 in Pulsar 2.11.0 and this broke most of the metrics since the output is not Prometheus Text 0.0.4 format any more. - Since Victoria Metrics has better support for handling scraped metrics, it should be possible to get the metric names working again with Victoria Metrics configuration. In Prometheus, this isn't possible at the moment. There are some changes going on in the Prometheus project, to address it, but since Victoria Metrics is more feature complete and runs with less resources, it's a better choice in getting the dashboards usable again. ### Additional context - Another PR will contain changes to migrate from using Prometheus Operator CRDs to use Victoria Metrics CRDs (PodMonitor -> VMPodScrape) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@pulsar.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
