Add sentry sample rate

[Vinnie-Singleton-NN]

Add SENTRY_API_SAMPLE_RATE configuration option for Sentry SDK

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• I have Added testing in the tests/litellm/ directory, Adding at least 1 test is a hard requirement - see details
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Type

🆕 New Feature

Changes

This PR adds support for configuring the Sentry SDK sample rate in LiteLLM through the SENTRY_API_SAMPLE_RATE environment variable. The sample rate controls what percentage of errors are sent to Sentry, allowing users to limit the volume of error reports while still getting valuable insights.

Implementation details:

• Added configuration of sample_rate parameter when initializing Sentry SDK
• Set default sample rate to 1.0 (100% of errors) if not specified
• Allow customization through the SENTRY_API_SAMPLE_RATE environment variable
• Added unit tests to verify the functionality

According to Sentry's documentation, the sample rate is a static rate between 0 and 1 that applies equally to all errors:

• A value of 1.0 sends 100% of errors to Sentry (default)
• A value of 0.5 sends 50% of errors
• A value of 0.1 sends 10% of errors

This is particularly useful for high-volume applications where sending every error to Sentry might not be necessary or could become cost-prohibitive.

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Name	Status	Preview	Comments	Updated (UTC)
litellm	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 29, 2025 6:32pm

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[ishaan-jaff]

please add this here: https://docs.litellm.ai/docs/observability/sentry and here: https://docs.litellm.ai/docs/proxy/logging#sentry

[Vinnie-Singleton-NN]

@ishaan-jaff I have updated both of those files per your instructions. I also included information on the already existing trace rate which was not in those docs originally.