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fix: preserve log severity during trajectory redaction - #919

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mnajafian-nv:fix/preserve-log-severity
Aug 27, 2026
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fix: preserve log severity during trajectory redaction#919
rapids-bot[bot] merged 2 commits into
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mnajafian-nv:fix/preserve-log-severity

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@mnajafian-nv mnajafian-nv commented Aug 27, 2026

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Overview

Preserve valid nemo_relay.log.severity metadata during trajectory-context redaction so sanitized semantic logs remain exportable.

  • I confirm this contribution is my own work, or I have the right to submit it under this project's license.
  • I searched existing issues and open pull requests, and this does not duplicate existing work.

Details

  • Preserve supported log-severity values in canonical form without changing the existing policy for other mark metadata.
  • Keep unsupported severity values subject to the configured custom-mark policy; redact_all_leaves redacts them.
  • Add regression coverage for valid and invalid severity values and downstream subscriber delivery.
  • Document the trajectory-context preset behavior.

Validation:

  • PII-redaction crate tests: 147 passed
  • Focused subscriber/exporter regression passed
  • Workspace Clippy passed
  • Documentation build passed
  • Formatting and diff checks passed

Where should the reviewer start?

Start with crates/pii-redaction/src/trajectory.rs, especially the severity extraction and restoration around trajectory sanitization. The corresponding regression coverage is in crates/pii-redaction/tests/unit/component_tests.rs.

Related Issues: (use one of the action keywords Closes / Fixes / Resolves / Relates to)

Summary by CodeRabbit

  • Bug Fixes

    • Preserved valid log severity metadata during trajectory sanitization, including after payload, metadata, or category redaction.
    • Normalized supported severity values to a canonical form.
    • Continued redacting invalid or unsupported severity values and other sensitive custom-mark data.
  • Documentation

    • Clarified severity metadata handling in trajectory export and typed metric mark configuration documentation.

Signed-off-by: mnajafian-nv <mnajafian@nvidia.com>
@mnajafian-nv mnajafian-nv self-assigned this Aug 27, 2026
@mnajafian-nv
mnajafian-nv requested review from a team as code owners August 27, 2026 05:15
@github-actions github-actions Bot added size:M PR is medium Bug issue describes bug; PR fixes bug lang:rust PR changes/introduces Rust code labels Aug 27, 2026
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153-157: LGTM!


Walkthrough

Trajectory sanitization now preserves valid nemo_relay.log.severity metadata in canonical form across mark types. Invalid or unsupported severity values remain redacted. Tests and documentation cover the updated behavior.

Changes

Trajectory severity sanitization

Layer / File(s) Summary
Severity extraction and restoration
crates/pii-redaction/src/trajectory.rs
sanitize_event_fields captures parseable mark severity values and restores them after payload, metadata, or category-profile redaction.
Coverage and behavior documentation
crates/pii-redaction/tests/unit/component_tests.rs, crates/pii-redaction/README.md, docs/configure-plugins/pii-redaction/configuration.mdx
Tests verify "warning" normalization to "warn", invalid severity redaction, and reviewer-field redaction. Documentation describes preservation and opaque custom-mark handling.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to 1e8f8

This PR preserves valid log-severity metadata during trajectory redaction while retaining existing handling for unsupported values. No actionable merge-blocking risk remains after normal checks and review.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

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Docstring Coverage ⚠️ Warning Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 9 functions across 2 files. (1 skipped: 1… Write docstrings for the functions missing them to satisfy the coverage threshold.
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Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
Description check ✅ Passed The description includes all required sections, confirms contribution and duplicate checks, explains the implementation and validation, identifies reviewer starting points, and relates the change to i…
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Full details: Description check

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The description includes all required sections, confirms contribution and duplicate checks, explains the implementation and validation, identifies reviewer starting points, and relates the change to issue #916.

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Inline comments:
In `@crates/pii-redaction/README.md`:
- Around line 153-156: Update the documentation describing custom mark severity
handling: when custom_mark_payload_policy is "preserve", leave invalid
nemo_relay.log.severity values unchanged; state that unsupported severity values
are redacted only for opaque custom marks using "redact_all_leaves".
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Comment thread crates/pii-redaction/README.md Outdated
Signed-off-by: mnajafian-nv <mnajafian@nvidia.com>
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rapids-bot Bot merged commit 5fef41b into NVIDIA:release/0.8 Aug 27, 2026
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mnajafian-nv deleted the fix/preserve-log-severity branch August 27, 2026 14:23
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