OTLP exporter Method not found: "opentelemetry.proto.collector.logs.v1.LogsService/Export" and "opentelemetry.proto.collector.trace.v1.TraceService/Export"

[lxx95]

Hi all,

I have a problem during exporter, my Otel collector shows logs like:

2023-04-29T15:10:47.486Z error exporterhelper/queued_retry.go:401 Exporting failed. The error is not retryable. Dropping data. {"kind": "exporter", "data_type": "traces", "name": "otlp", "error": "Permanent error: rpc error: code = Unimplemented desc = Method not found: opentelemetry.proto.collector.trace.v1.TraceService/Export", "dropped_items": 50}
2023-04-29T15:10:49.788Z error exporterhelper/queued_retry.go:401 Exporting failed. The error is not retryable. Dropping data. {"kind": "exporter", "data_type": "logs", "name": "otlp", "error": "Permanent error: rpc error: code = Unimplemented desc = Method not found: opentelemetry.proto.collector.logs.v1.LogsService/Export", "dropped_items": 3}

My goal is to configure the metrics/traces/logs exporting (gRPC) from the Otel Demo to Skywalking, an open-source APM (that support otlp gRPC).

Here my collector configuration:

apiVersion: v1
kind: ConfigMap
metadata:
name: opentelemetry-demo-otelcol
labels:
app.kubernetes.io/name: otelcol
app.kubernetes.io/instance: opentelemetry-demo
app.kubernetes.io/version: "latest"
data:
relay: |
exporters:
logging: {}
otlp:
endpoint: 'skywalking-oap.skywalking.svc.cluster.local:11800'
tls:
insecure: true
skywalking:
endpoint: 'skywalking-oap.skywalking.svc.cluster.local:11800'
tls:
insecure: true
prometheus:
enable_open_metrics: true
endpoint: 0.0.0.0:9464
resource_to_telemetry_conversion:
enabled: true
extensions:
health_check: {}
memory_ballast:
size_in_percentage: 40
processors:
resource/job-name:
attributes:
- key: job_name
value: otel-demo
action: insert
receivers:
jaeger:
protocols:
grpc:
endpoint: ${MY_POD_IP}:14250
thrift_compact:
endpoint: ${MY_POD_IP}:6831
thrift_http:
endpoint: ${MY_POD_IP}:14268
otlp:
protocols:
grpc:
endpoint: ${MY_POD_IP}:4317
prometheus:
config:
scrape_configs:
- job_name: opentelemetry-collector
scrape_interval: 10s
static_configs:
- targets:
- ${MY_POD_IP}:8888
zipkin:
endpoint: ${MY_POD_IP}:9411
service:
extensions:
- health_check
- memory_ballast
pipelines:
logs:
exporters:
- otlp
- logging
processors:
- resource/job-name
receivers:
- otlp
metrics:
exporters:
- otlp
- logging
processors:
- resource/job-name
receivers:
- otlp
traces:
exporters:
- otlp
- logging
processors:
- resource/job-name
receivers:
- otlp
telemetry:
metrics:
address: ${MY_POD_IP}:8888

All the others components (pods/services/deployments) are the default (otel demo) one.
The Skywalking endpoint is fine, and it retrieves data from the own agent to the same endpoint.

Hope that all is clear.

Thank you,
Luigi

[lxx95]

Discussion answered here