[jira] [Created] (IGNITE-12735) Metric exporter implementation could lead to NullPointerException from gauge which invoke communication

[Anton Vinogradov (Jira)]

Andrey N. Gura created IGNITE-12735:
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             Summary: Metric exporter implementation could lead to NullPointerException from gauge which invoke communication
                 Key: IGNITE-12735
                 URL: https://issues.apache.org/jira/browse/IGNITE-12735
             Project: Ignite
          Issue Type: Improvement
            Reporter: Andrey N. Gura


{{ReadMetricsOnNodeStartupTest#testReadMetricsOnNodeStartup}} test fails sometimes. The reason is try to export gauge metric value while {{TcpCommunicationMetricsListener}} isn't initialized.

**Proposed solution:**

Register metrics after export SPIs are already started.





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