{"record":{"id":"0157b328136ae3c8","repo":"temporalio/temporal","slug":"unsupported-metric-exporter-type-t","errorCode":null,"errorMessage":"unsupported metric exporter type: %T","messagePattern":"unsupported metric exporter type: %T","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"common/telemetry/config.go","lineNumber":249,"sourceCode":"\t}\n\treturn out, nil\n}\n\nfunc (ec *exportConfig) MetricExporters() ([]metric.Exporter, error) {\n\tout := make([]metric.Exporter, 0, len(ec.Exporters))\n\tfor _, expcfg := range ec.Exporters {\n\t\tif !strings.HasPrefix(expcfg.Kind.Signal, \"metric\") {\n\t\t\tcontinue\n\t\t}\n\t\tswitch spec := expcfg.Spec.(type) {\n\t\tcase *otlpGrpcMetricExporter:\n\t\t\tmetricexp, err := ec.buildOtlpGrpcMetricExporter(spec)\n\t\t\tif err != nil {\n\t\t\t\treturn nil, err\n\t\t\t}\n\t\t\tout = append(out, metricexp)\n\t\tdefault:\n\t\t\treturn nil, fmt.Errorf(\"unsupported metric exporter type: %T\", spec)\n\t\t}\n\t}\n\treturn out, nil\n\n}\n\nfunc (ec *exportConfig) buildOtlpGrpcMetricExporter(\n\tcfg *otlpGrpcMetricExporter,\n) (metric.Exporter, error) {\n\tdopts := cfg.Connection.dialOpts()\n\topts := []otlpmetricgrpc.Option{\n\t\totlpmetricgrpc.WithEndpoint(cfg.Connection.Endpoint),\n\t\totlpmetricgrpc.WithHeaders(cfg.Headers),\n\t\totlpmetricgrpc.WithTimeout(cmp.Or(cfg.Timeout, 10*time.Second)),\n\t\totlpmetricgrpc.WithDialOption(dopts...),\n\t\totlpmetricgrpc.WithRetry(otlpmetricgrpc.RetryConfig{\n\t\t\tEnabled:         cmp.Or(cfg.Retry.Enabled, retryDefaultEnabled),\n\t\t\tInitialInterval: cmp.Or(cfg.Retry.InitialInterval, retryDefaultInitialInterval),","sourceCodeStart":231,"sourceCodeEnd":267,"githubUrl":"https://github.com/temporalio/temporal/blob/bde624efd13fbd3843654058db6d9c716166318b/common/telemetry/config.go#L231-L267","documentation":"Error \"unsupported metric exporter type: %T\" thrown in temporalio/temporal.","triggerScenarios":"Thrown at common/telemetry/config.go:249 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"bde624efd13fbd3843654058db6d9c716166318b","analyzedAt":"2026-09-01T07:18:39.080Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}