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DOC-7045: Fix dead academic-source link and the link checker that missed it - #3934

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DOC-7045-investigate-and-fix-broken-link-checker-for-pdf-files
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DOC-7045: Fix dead academic-source link and the link checker that missed it#3934
andy-stark-redis wants to merge 1 commit into
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DOC-7045-investigate-and-fix-broken-link-checker-for-pdf-files

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@andy-stark-redis andy-stark-redis commented Sep 7, 2026

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Summary

  • Replace the dead dimacs.rutgers.edu PDF link in the Count-Min Sketch page's Academic sources section with the paper's DOI (https://doi.org/10.1016/j.jalgor.2003.12.001), which resolves.
  • Re-pin lycheeverse/lychee-action to a commit that postdates its fix for the v0.24.2 tarball's subfolder layout. The previously pinned SHA predated that fix, so the "Check links" step crashed in its own installer on every scheduled run since the workflow was added — before checking a single URL — and because the crash happened before the "flag broken links" step, no tracking issue was ever opened either. That's why the dead PDF link went unreported; it wasn't a PDF-specific gap in the checker's link validation.

Test plan

  • After merge, manually trigger the link_check workflow (gh workflow run link_check.yaml) and confirm the "Check links" step completes instead of failing in the lychee-action installer.
  • Confirmed the new DOI link resolves (302 → publisher article page) and the old link 404s.
  • Confirmed the re-pinned SHA's action.yml contains the subfolder-detection fix.

Fixes DOC-7045.

🤖 Generated with Claude Code


Note

Low Risk
Documentation URL swap and a third-party GitHub Action SHA bump; no application, auth, or data-handling changes.

Overview
Fixes DOC-7045 by addressing both the broken citation and the CI step that never reported it.

The Count-Min Sketch Academic sources entry now points at the paper’s DOI (https://doi.org/10.1016/j.jalgor.2003.12.001) instead of a 404 dimacs.rutgers.edu PDF URL.

The link_check workflow re-pins lycheeverse/lychee-action to a commit after the installer fix for v0.24.2 tarballs that extract into a subfolder. The old pin assumed a flat layout, so Check links failed during install on every run and never validated URLs or opened tracking issues—explaining why the dead PDF went unnoticed.

Reviewed by Cursor Bugbot for commit 7ced929. Bugbot is set up for automated code reviews on this repo. Configure here.

…sed it

The Count-Min Sketch page's academic-source PDF link (dimacs.rutgers.edu)
404s; replaced with the paper's DOI. The link checker never caught it
because it hasn't run successfully once since it was added: the pinned
lychee-action commit predates an upstream fix for the v0.24.2 tarball's
subfolder layout, so every scheduled run crashed in the installer before
checking any link, and no tracking issue was ever opened as a result.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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DOC-7045

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github-actions Bot commented Sep 7, 2026

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🧠 Redis Memory

Found 5 related items from repository history (5 new this commit):

Memory updated at 7ced929

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