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docs: cover the parallel multi-job cache race in the seed-job example (#705)

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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
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Bruno Borges 2026-07-09 16:02:10 -04:00
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docs/advanced-usage.md
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@ -334,8 +334,10 @@ steps:
``` ```
Separate seed job — useful for a matrix where different legs run different goals Separate seed job — useful for a matrix where different legs run different goals
(`test`, `verify`, `-Pprofile1`, …) but all share the same `~/.m2` cache. The (`test`, `check`, `verify`, `-Pprofile1`, ...) but all share the same `~/.m2`
seed job creates a comprehensive cache that the other jobs then reuse: cache. Without a seed, whichever job finishes first creates the cache from its
own partial `.m2`, and parallel jobs race to save an equally partial cache; the
seed job instead creates one comprehensive cache that every other job reuses:
```yaml ```yaml
jobs: jobs: