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https://issues.apache.org/jira/browse/NIFI-16298?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexander Bij updated NIFI-16298:
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Priority: Minor (was: Trivial)
> Expose Primary Node and Cluster Coordinator role as Prometheus metrics
> ----------------------------------------------------------------------
>
> Key: NIFI-16298
> URL: https://issues.apache.org/jira/browse/NIFI-16298
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 2.11.0
> Reporter: Alexander Bij
> Priority: Minor
> Labels: metric-collector, metrics, prometheus
>
> h2. Summary
> Improvement to be able to build a Grafana dashboard showing the Primary Node
> and Cluster Coordinator based on the prometheus scrape.
> The Prometheus flow metrics endpoint
> ({{{}/nifi-api/flow/metrics/prometheus{}}}) exposes cluster
> membership/connectivity metrics, but nothing indicates which node currently
> holds the Primary Node or Cluster Coordinator role. Building a "nodes in this
> cluster" dashboard/table (one row per node, with its key stats) currently has
> no way to mark which row is the Primary Node or the Cluster Coordinator
> without querying NiFi's REST API separately and joining the data out-of-band.
> Suggestion to add:
> * {{cluster_is_primary_node}}
> * {{cluster_is_cluster_coordinator}}
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