[herin049]

Description

In the declarative configuration schema, a timeout of 0 on an OTLP exporter or a periodic metric reader means "no limit". Before this change, 0 was passed through literally, so every export got a zero second deadline and failed right away.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

See contributing.md for styleguide, changelog guidelines, and more.

• I am a human and not a bot
• I have run tox -e precommit
• I have run tox -e typecheck
• I have run the relevant tests and linting tox environments
• This requires the following PR in contrib:

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Waiting on reviewers · refreshed 2026-10-22 01:00 UTC

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[Copilot]

🟢 Approval recommended

Static review supports consistent timeout handling across configuration and transports, with focused regression coverage and no unresolved blocking issues.

No open issues 🎉

What changed in this PR

This PR aligns declarative configuration with the schema’s “no limit” semantics for zero timeouts, preventing immediate export failures.

Changes:

• Convert zero timeouts to infinity for OTLP exporters and periodic metric readers.
• Translate infinite timeouts to None at HTTP and gRPC transport boundaries.
• Add regression coverage and a changelog entry.

File	Description
opentelemetry-configuration/​tests/​test_tracer_provider.py	Test zero-timeout HTTP span exporter configuration.
opentelemetry-configuration/​tests/​test_meter_provider.py	Test zero-timeout metric exporters and periodic readers.
opentelemetry-configuration/​tests/​test_logger_provider.py	Test zero-timeout HTTP and gRPC log exporters.
opentelemetry-configuration/​tests/​test_common.py	Test shared timeout conversion.
opentelemetry-configuration/​src/​opentelemetry/​configuration/​_tracer_provider.py	Apply shared timeout conversion to span exporters.
opentelemetry-configuration/​src/​opentelemetry/​configuration/​_meter_provider.py	Handle unlimited exporter and periodic reader timeouts.
opentelemetry-configuration/​src/​opentelemetry/​configuration/​_logger_provider.py	Apply shared timeout conversion to log exporters.
opentelemetry-configuration/​src/​opentelemetry/​configuration/​_common.py	Centralize timeout conversion and zero handling.
exporter/​opentelemetry-exporter-otlp-proto-grpc/​tests/​test_otlp_exporter_mixin.py	Verify infinite timeouts disable gRPC deadlines.
exporter/​opentelemetry-exporter-otlp-proto-grpc/​src/​opentelemetry/​exporter/​otlp/​proto/​grpc/​exporter.py	Translate infinite deadlines to None.
exporter/​opentelemetry-exporter-otlp-common/​tests/​test_http_client.py	Verify unlimited HTTP timeouts across retry paths.
exporter/​opentelemetry-exporter-otlp-common/​src/​opentelemetry/​exporter/​otlp/​common/​http.py	Normalize infinite timeouts before transport calls.
.changelog/​5806.fixed	Document the zero-timeout fix.

_{Review effort: Balanced}