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ECO-CMP-JS-001

Name: Synchronous filesystem calls in request path

Category: CMP

Family: JS

Primary layer: code

System layers: code

Description

Sync FS calls block the event loop and reduce concurrency.

Impact

  • confidence: 0.9
  • notes: High propagation in Node services.
  • type: latency

Detection

  • languages:
  • javascript
  • method: ast

Remediation

  • guidance: Use async fs APIs (promises/callbacks).
  • tradeoffs: Refactor required.

Pattern examples

No pattern examples provided.

Remediation examples

No remediation examples provided.