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CI failures every 7 days signal cache expiration, not flakiness

A common issue in CI/CD pipelines is tests failing due to cache expiration, not inherent flakiness. If CI failures occur on a regular schedule, particularly every seven days, it often indicates that GitHub Actions is evicting an untouched cache entry. This can lead to slow, cold builds that may time out on marginal conditions. The solution is not to increase timeouts but to address the cache management or ensure dependencies are rebuilt. AI

IMPACT Optimizes CI/CD pipelines for AI development by addressing common caching issues.

RANK_REASON The item discusses a specific technical issue and solution related to CI/CD infrastructure, not a major industry event.

Read on dev.to — MCP tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

CI failures every 7 days signal cache expiration, not flakiness

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  1. dev.to — MCP tag TIER_1 English(EN) · Heinrich Neb ·

    Your CI is not flaky. It fails every 7 days.

    <p><em>Quick take</em></p> <p>Before you label a failing test flaky, write down the dates it failed. Flaky has no rhythm. Yours might.</p> <p>"Flaky" is the most expensive word in CI. It closes the investigation. Nobody looks at a flaky test again until it fails on the day of a r…