config.sampler = OpenTelemetry::SDK::Trace::Samplers::TraceIdRatioBased.new(0.1) - not wokring

[akshaysn1991]

Not able to configure sampling in OpenTelemetry::SDK.configure
getting below error

E, [2025-01-02T13:50:08.053572 #14135] ERROR -- : OpenTelemetry error: unexpected configuration error due to undefined method `sampler=' for #OpenTelemetry::SDK::Configurator:0x00007f990fd69fc0 - OpenTelemetry::SDK::ConfigurationError

Share details about your runtime

Operating system details: Mac 12
RUBY_ENGINE: "ruby"
RUBY_VERSION: "2.5.2"

gem 'opentelemetry-sdk', '> 1.1.0'
gem 'opentelemetry-exporter-otlp', '> 0.20.3'
gem 'opentelemetry-instrumentation-all', '~> 0.24.0'
gem 'opentelemetry-exporter-zipkin'

require 'opentelemetry/sdk'

OpenTelemetry::SDK.configure do |config|
config.sampler = OpenTelemetry::SDK::Trace::Samplers::TraceIdRatioBased.new(0.1)
config.use 'OpenTelemetry::Instrumentation::Rails'
end

[arielvalentin]

The configurator DSL does not support setting a sampler.

It is a parameter of the TracerProvider constructor.

I'd recommend configuring these using the standard environment variables OTEL_TRACES_SAMPLER and OTEL_TRACES_SAMPLER_ARG

https://opentelemetry.io/docs/specs/otel/configuration/sdk-environment-variables/#general-sdk-configuration