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docs(reqresp): add upstream issue reference to createRespSignal - #9033

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nflaig merged 1 commit into
ChainSafe:unstablefrom
lodekeeper:docs/reqresp-upstream-issue-ref
Mar 13, 2026
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docs(reqresp): add upstream issue reference to createRespSignal#9033
nflaig merged 1 commit into
ChainSafe:unstablefrom
lodekeeper:docs/reqresp-upstream-issue-ref

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@lodekeeper lodekeeper commented Mar 13, 2026

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Summary

Add a JSDoc comment to createRespSignal() in packages/reqresp/src/request/index.ts documenting the upstream Node.js issue that motivates the manual AbortController composition pattern.

Follow-up to #9029 per review feedback — the code should document why we avoid AbortSignal.any() and link to the upstream issue for future maintainers.

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AI disclosure

This PR was authored with AI assistance (Lodekeeper 🌟).

@lodekeeper
docs(reqresp): add upstream issue reference to createRespSignal
15959e9 
Add JSDoc comment to createRespSignal() documenting why we use manual
AbortController composition instead of AbortSignal.any() — it works
around a memory leak in Node.js (nodejs/node#54614) where .any() retains
references to source signals for the lifetime of the longest-lived
signal.

Refs: ChainSafe#8969, ChainSafe#9029
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lodekeeper requested a review from a team as a code owner March 13, 2026 15:16
@gemini-code-assist

gemini-code-assist Bot commented Mar 13, 2026

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Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request improves code maintainability and understanding by adding critical documentation to the createRespSignal function. The new JSDoc comment clarifies why a specific AbortController pattern is used, detailing its role in mitigating a known Node.js memory leak. This ensures that the rationale behind this implementation choice is transparent and accessible to anyone working with the codebase.

Highlights

  • Documentation: Added a comprehensive JSDoc comment to the createRespSignal function, explaining the manual AbortController composition pattern as a workaround for a Node.js AbortSignal.any() memory leak.
  • Contextual Clarity: Included references to the upstream Node.js issue and internal Lodestar investigations within the JSDoc, providing essential context for future maintainers.

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Changelog
  • packages/reqresp/src/request/index.ts
    • Added a detailed JSDoc comment to the createRespSignal function, explaining the workaround for a Node.js AbortSignal.any() memory leak and linking to relevant issues.
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Code Review

This pull request adds a JSDoc comment to the createRespSignal function, explaining the motivation for its existence due to an upstream memory leak in Node.js's AbortSignal.any(). My review suggests completing the JSDoc with @param and @returns tags to fully document the function's API, which will improve maintainability.

Comment thread packages/reqresp/src/request/index.ts
@nflaig
nflaig enabled auto-merge (squash) March 13, 2026 15:23
@nflaig
nflaig merged commit b90dff6 into ChainSafe:unstable Mar 13, 2026
24 of 25 checks passed
@codecov

codecov Bot commented Mar 13, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52.32%. Comparing base (8299317) to head (15959e9).
⚠️ Report is 1 commits behind head on unstable.

Additional details and impacted files 
@@            Coverage Diff            @@
##           unstable    #9033   +/-   ##
=========================================
  Coverage     52.32%   52.32%           
=========================================
  Files           848      848           
  Lines         62505    62505           
  Branches       4603     4603           
=========================================
  Hits          32703    32703           
  Misses        29736    29736           
  Partials         66       66
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  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
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@wemeetagain

wemeetagain commented Mar 19, 2026

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🎉 This PR is included in v1.41.0 🎉

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@nflaig nflaig nflaig approved these changes
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@lodekeeper @wemeetagain @nflaig