EDOT -> ELK. Collector error: dropping cumulative temporality histogram

Elastic Observability
,
1

Hi there,

With otelcol-contrib docker I have successfully pushed the logs to my ES.

But now I have an issue with metrics. I enabled metrics in oltp-collector config:

service:
    pipelines:
        logs:
            receivers: [ otlp ]
            exporters: [ elasticsearch ]
        traces:
            receivers: [ otlp ]
            exporters: [ elasticsearch ]
        metrics:
            receivers: [ otlp ]
            exporters: [ elasticsearch ]

And now in collectors logs I see those errors:

2025-03-10T19:22:59.954Z        info    service@v0.121.0/service.go:281 Everything is ready. Begin running and processing data.
2025-03-10T19:23:52.721Z        warn    elasticsearchexporter@v0.121.0/exporter.go:322  validation errors       {"otelcol.component.id": "elasticsearch", "otelcol.component.kind": "Exporter", "otelcol.signal": "metrics", "error": "dropping cumulative temporality histogram \"jvm.gc.duration\"\ndropping cumulative temporality histogram \"http.server.request.duration\"\ndropping cumulative temporality histogram \"db.client.connections.use_time\"\ndropping cumulative temporality histogram \"db.client.connections.wait_time\"\ndropping cumulative temporality histogram \"db.client.connections.create_time\""}
2025-03-10T19:24:52.724Z        warn    elasticsearchexporter@v0.121.0/exporter.go:322  validation errors       {"otelcol.component.id": "elasticsearch", "otelcol.component.kind": "Exporter", "otelcol.signal": "metrics", "error": "dropping cumulative temporality histogram \"jvm.gc.duration\"\ndropping cumulative temporality histogram \"http.server.request.duration\"\ndropping cumulative temporality histogram \"db.client.connections.use_time\"\ndropping cumulative temporality histogram \"db.client.connections.wait_time\"\ndropping cumulative temporality histogram \"db.client.connections.create_time\""}
2025-03-10T19:25:52.721Z        warn    elasticsearchexporter@v0.121.0/exporter.go:322  validation errors       {"otelcol.component.id": "elasticsearch", "otelcol.component.kind": "Exporter", "otelcol.signal": "metrics", "error": "dropping cumulative temporality histogram \"jvm.gc.duration\"\ndropping cumulative temporality histogram \"http.server.request.duration\"\ndropping cumulative temporality histogram \"db.client.connections.use_time\"\ndropping cumulative temporality histogram \"db.client.connections.wait_time\"\ndropping cumulative temporality histogram \"db.client.connections.create_time\""}

Any idea how to fix it?

2

Hi @yev

Per the master of this...

Felix Barnsteiner

ES doesn’t support histograms with cumulative temporality. You’ll either need to produce delta histograms or use a cumulativetodeltaprocessor.

3

Thank you for the response, @stephenb !