docs: pipeline: inputs: tcp: document unprocessable JSON payload handling

[eschabell]

• Document that a JSON payload that can't be encoded or ingested is dropped with a warning
• Note that dropping avoids duplicate records

Signed-off-by: Eric D. Schabell eric@schabell.org

Summary by CodeRabbit

• Documentation
  • Clarified that in v5.1.3 and later, unprocessable JSON payloads are logged and dropped rather than retried.

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• pipeline/inputs/tcp.md

📝 Walkthrough

Walkthrough

The TCP input documentation now states that, in v5.1.3 or later, unprocessable JSON payloads are logged and dropped rather than processed again.

Changes

TCP input documentation

Layer / File(s)	Summary
Document JSON payload handling pipeline/inputs/tcp.md	Documents that, in v5.1.3 or later, unencodable or uningestible JSON payloads are logged as skipping unprocessable JSON payload and dropped instead of being processed again.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Other

Merge Risk: 🔵 Low · up to 625e2

The documentation could mislead readers about partial delivery when JSON ingestion fails. Clarifying that earlier records may already be delivered is a bounded documentation correction.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the documentation change for handling unprocessable JSON payloads in the TCP input.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

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Inline comments:
Review comments at @pipeline/inputs/tcp.md:
- Around line 26-27: Update the TCP input documentation to clarify that on an
unprocessable JSON payload, the input consumes the affected bytes to prevent
replay, while records routed before the failure remain delivered; avoid implying
that no records from the payload were delivered.

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• Configuration used: defaults
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📥 Commits

Reviewing files that changed from the base of the PR and between e586da8 and 625e2b4.

📒 Files selected for processing (1)

• pipeline/inputs/tcp.md

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[eschabell]

@patrick-stephens ready for review!