stankiewicz opened a new pull request, #39149:
URL: https://github.com/apache/beam/pull/39149
This PR introduces OpenTelemetry (OTel) support for Google Cloud Spanner IO,
enabling better observability, tracing, and metrics for Spanner operations
within Beam pipelines.
- Configuration: Added withEnableOpenTelemetryTracing() to SpannerConfig and
SpannerIO (Write and ReadChangeStream) to allow users to easily toggle OTel
tracing.
- Client Initialization: Updated SpannerAccessor and its underlying
SpannerOptions builder to accept an OpenTelemetry instance. When enabled, this
automatically configures extended tracing, API tracing, and end-to-end tracing,
while swapping OpenCensus for OpenTelemetry metrics/traces in the Spanner
client.
- Pipeline Options Integration: Updated the @Setup lifecycle methods across
various DoFns (e.g., BatchSpannerRead, NaiveSpannerRead, CreateTransactionFn,
and Change Stream DoFns) to extract the OpenTelemetry instance directly from
PipelineOptions via SdkHarnessOptions.
- Change Streams DAO: Updated DaoFactory to hold and pass the OpenTelemetry
instance to the Spanner metadata and admin clients.
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