[jira] [Created] (MINIFICPP-2488) Prometheus metric family type definitions are duplicated

["Gábor Gyimesi (Jira)" <ji...@apache.org>]

Gábor Gyimesi created MINIFICPP-2488:
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             Summary: Prometheus metric family type definitions are duplicated
                 Key: MINIFICPP-2488
                 URL: https://issues.apache.org/jira/browse/MINIFICPP-2488
             Project: Apache NiFi MiNiFi C++
          Issue Type: Bug
            Reporter: Gábor Gyimesi
            Assignee: Gábor Gyimesi


Currently all metric response nodes are mapped to a corresponding Prometheus metric collection and every metric defines a separate metric family. Due to this when metric names are duplicated and only different in labels, they define separate Prometheus TYPE objects with the same name which causes duplicate type definitions. This duplicate type definition causes errors in metric collectors like Telegraf.

We should collect all minifi metrics in a single collection and group metrics in families by metric name to avoid this issue.



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