intermittent-issue-debugging

name	intermittent-issue-debugging
description	Debug issues that occur sporadically and are hard to reproduce. Use monitoring and systematic investigation to identify root causes of flaky behavior.

Intermittent Issue Debugging

Table of Contents

• Overview
• When to Use
• Quick Start
• Reference Guides
• Best Practices

Overview

Intermittent issues are the most difficult to debug because they don't occur consistently. Systematic approach and comprehensive monitoring are essential.

When to Use

• Sporadic errors in logs
• Users report occasional issues
• Flaky tests
• Race conditions suspected
• Timing-dependent bugs
• Resource exhaustion issues

Quick Start

Minimal working example:

// Strategy 1: Comprehensive Logging
// Add detailed logging around suspected code

function processPayment(orderId) {
  const startTime = Date.now();
  console.log(`[${startTime}] Payment start: order=${orderId}`);

  try {
    const result = chargeCard(orderId);
    .();
     result;
  }  (error) {
     duration = .() - startTime;
    .(, {
      : orderId,
      : error.,
      : duration,
      : error..,
      : error.,
    });
     error;
  }
}