chore(ci): reduce Renovate memory usage#481
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July 20, 2026 09:28
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📝 WalkthroughWalkthroughThe Renovate configuration adds an ✨ Finishing Touches🧪 Generate unit tests (beta)
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<!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Chores** * Updated automated dependency maintenance settings to limit resource usage during lockfile updates. * Reduced parallel processing and capped memory allocation to improve reliability and avoid timeouts. <!-- end of auto-generated comment: release notes by coderabbit.ai --> ## Summary Ported from [rstackjs/rstack-examples#481](rstackjs/rstack-examples#481). The Renovate lockfile-maintenance job risks being killed by the kernel OOM killer when pnpm regenerates the shared lockfile across this large workspace (100+ projects). This caps Renovate's Node child-process heap at 1536 MiB (`toolSettings.nodeMaxMemory`) and limits pnpm to a single worker (`PNPM_MAX_WORKERS=1`), leaving more memory available for the Renovate parent process and native allocations. ## Related Links - https://docs.renovatebot.com/mend-hosted/faq/#im-hitting-a-timeout--kernel-out-of-memory-limit-with-a-pnpmyarn-project ## Checklist - [x] Tests updated (or not required). - [x] Documentation updated (or not required). - [x] Changeset added, and when a BREAKING CHANGE occurs, it needs to be clearly marked (or not required).
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Summary
The Renovate job was terminated by the kernel OOM killer while pnpm regenerated the shared lockfile for 178 workspace projects.
This caps Renovate's Node child-process heap at 1536 MiB and limits pnpm to one worker. The tuned reproduction completed successfully with about 0.87 GiB peak RSS, leaving more memory available for the Renovate parent process and native allocations.
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