Update OTel JS Autoinstrumentation env var config (#4181)

Co-authored-by: opentelemetrybot <[email protected]>
open-telemetry · Mar 19, 2024 · 4b89260 · 4b89260
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diff --git a/content/en/docs/languages/js/automatic/_index.md b/content/en/docs/languages/js/automatic/_index.md
@@ -38,14 +38,23 @@ Alternatively, you can use `export` to set environment variables:
 
 ```shell
 export OTEL_TRACES_EXPORTER="otlp"
-export OTEL_METRICS_EXPORTER="otlp"
 export OTEL_EXPORTER_OTLP_ENDPOINT="your-endpoint"
 export OTEL_NODE_RESOURCE_DETECTORS="env,host,os"
 export OTEL_SERVICE_NAME="your-service-name"
 export NODE_OPTIONS="--require @opentelemetry/auto-instrumentations-node/register"
 node app.js
 ```
 
+{{% alert title="Note" color="info" %}}
+
+Currently, only Traces are supported for environment variable configuration. See
+the open issues for
+[Metrics](https://github.com/open-telemetry/opentelemetry-js/issues/4551) and
+[Logs](https://github.com/open-telemetry/opentelemetry-js/issues/4552) to learn
+more.
+
+{{% /alert %}}
+
 By default, all SDK [resource detectors](/docs/languages/js/resources/) are
 used. You can use the environment variable `OTEL_NODE_RESOURCE_DETECTORS` to
 enable only certain detectors, or to completely disable them.

diff --git a/static/refcache.json b/static/refcache.json
@@ -3519,6 +3519,14 @@
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