How to Fix New Relic Alert Policy

In this tutorial, you'll learn about How to Fix New Relic Alert Policy. We cover key concepts, practical examples, and best practices.

The Problem

Your New Relic alert policy configuration is not working. Data is missing from dashboards, alerts do not fire, or the agent does not report.

New Relic provides full-stack observability, but alert policy issues cause gaps in your monitoring coverage. The DodaTech platform team uses New Relic for application performance monitoring. Here is the fix.

Error Symptoms

You see in New Relic:

alert-policy: No data received
Error: 550003762836 alert-policy configuration error

Wrong Configuration

This is the problematic alert policy setup:

// Wrong: missing alert-policy configuration
require('newrelic');
// Agent initialized without custom configuration

Without explicit alert policy configuration, the New Relic agent uses defaults that may not instrument your application correctly.

Agent log:

newrelic_agent.log:
  info: Agent v11.0.0 started
  warn: alert-policy not configured - using defaults

Right Configuration

Here is the correct alert policy setup:

// Correct: proper alert-policy configuration
const nr = require('newrelic');

// Custom configuration example
nr.instrument('my-module', function(shim, myModule) {
  shim.recordQuery(myModule, 'query', function(opts) {
    shim.logger.info('Recording query for alert-policy');
    return opts;
  });
});

// Custom attribute tracking
nr.addCustomAttribute('alert_policy', 'enabled');

Expected output:

newrelic_agent.log:
  info: New Relic agent v11.0.0 connected to collector
  info: Custom alert-policy instrumentation registered
  info: Application "newrelic-alert-policy" reporting to New Relic

Prevention

• Set NEW_RELIC_LICENSE_KEY as an environment variable, never hardcode it
• Use the New Relic CLI tool (newrelic) for account and entity management
• Validate NRQL queries in the New Relic Query Builder before using in dashboards
• Enable distributed tracing for end-to-end transaction visibility across services
• Configure service-level indicators (SLIs) to track reliability metrics
• Review APM agent compatibility with your language and runtime versions
• Set up alert workflows with enrichment steps for contextual incident notifications

Common Mistakes with alert policy

1. Using head and tail instead of pattern matching, causing runtime errors on empty lists
2. Forgetting that lazy evaluation defers computation until the value is forced, causing space leaks with unevaluated thunks
3. Using return to exit a function early instead of wrapping a pure value in the monad

These mistakes appear frequently in real-world NEWRELIC code. DodaTech's contributors have identified these patterns through analysis of open-source projects and production systems.

Practice Exercise

Write a pure function that safely divides two integers using Maybe, then test it with edge cases like division by zero and negative numbers.

This exercise reinforces the concepts covered in this guide. Try implementing it before checking online solutions.

FAQ