MetricsReporter: possible outdate protobuf datatype

[xuan-cao-swi]

Running the metrics exporter and received this issue when log_status is called.

E, [2025-02-18T16:51:36.131790 #19] ERROR -- : OpenTelemetry error: unexpected error decoding rpc.Status in OTLP::MetricsExporter#log_status - undefined method `type_name' for <Google::Protobuf::Any: type_url: "type.googleapis.com/google.rpc.BadRequest", value: "
>
.resourceMetrics.scopeMetricsPath contained no usable data
1
.resourceMetricsPath contained no usable data">:Google::Protobuf::Any

              klass_or_nil = ::Google::Protobuf::DescriptorPool.generated_pool.lookup(detail.type_name).msgclass
                                                                                            ^^^^^^^^^^ - /usr/local/bundle/gems/opentelemetry-exporter-otlp-metrics-0.3.0/lib/opentelemetry/exporter/otlp/metrics/util.rb:120:in `method_missing'

Not sure if this is caused by protobuf any type removed the type_name (https://cloud.google.com/ruby/docs/reference/google-cloud-container_analysis-v1/latest/Google-Protobuf-Any)

Current protobuf any have two values:

<Google::Protobuf::Any: type_url: "type.googleapis.com/google.rpc.BadRequest", value: ">

Currently possible workaround

require 'google/rpc/error_details_pb'
type_name = detail.type_url.split('/').last # => google.rpc.BadRequest
klass_or_nil=::Google::Protobuf::DescriptorPool.generated_pool.lookup(type_name)&.msgclass => Google::Rpc::BadRequest

Share details about your runtime

Operating system details: Debian GNU/Linux 11 (bullseye)
RUBY_ENGINE: "ruby"
RUBY_VERSION: "3.1.0"
RUBY_DESCRIPTION: "ruby 3.1.0p0 (2021-12-25 revision fb4df44d16) [aarch64-linux]"
OpenTelemetry::Exporter::OTLP::Metrics::VERSION: "0.3.0"