Update instrument-java-application.rst #1596
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To send data directly from the Java 2.x agent to o11y cloud, we need to set OTEL_EXPORTER_OTLP_TRACES_PROTOCOL=grpc.
bhillmer
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breedx-splk
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Nov 12, 2024
Use http/protobuf instead of grpc when sending traces directly to o11y cloud. Also, disable log export when sending directly to o11y cloud to avoid errors.
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Thanks @breedx-splk . I've updated it to align with the Python example which uses the http/protobuf endpoint. I suppose setting the protocol isn't strictly necessary for Java 2.x, since http/protobuf is the default now. I'd prefer to set it explicitly though, so it's clear. I also set |
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Describe the change
The Java 2.x agent uses http as the default protocol (vs. grpc for the 1.x agent). To send traces directly to o11y cloud with the Java 2.x agent, we need to set the OTEL_EXPORTER_OTLP_TRACES_PROTOCOL environment variable to 'grpc'. Otherwise, the export fails with the following error:
[otel.javaagent 2024-11-08 17:07:02:915 -0500] [OkHttp https://ingest.us1.signalfx.com/...] WARN io.opentelemetry.exporter.internal.http.HttpExporter - Failed to export spans. Server responded with HTTP status code 404.This setting was tested as part of this discussion on Slack.