2.0.24: processFunc is not a function in @artilleryio/int-core/lib/engine_http.js

[jcollum-nutrien]

VERSION INFO:

Artillery: 2.0.24
Node.js:   v22.15.1
OS:        darwin

I have a setup that has a couple of js functions that log things out as the test is running. When it gets to approx 11k-13k iterations it hits this error:

Iteration 14092, 🕐 Account 10247876: 796ms (200)
Iteration 13576, 🕐 Account 10247792: 2688ms (200)
Correlation ID: artillery-perf-testing-09888fe9-86eb-4d2f-96d5-12921adaf0e3
Iteration 13793, 🕐 Account 10247792: 2686ms (200)
Iteration 11568, 🕐 Account 10247792: 2693ms (200)
Iteration 13545, 🕐 Account 10246223: 680ms (200)
Correlation ID: artillery-perf-testing-8ee23a05-c4bc-4d35-bbc2-9482c2478f72
worker error, id: 4 TypeError [Error]: processFunc is not a function
    at iteratee (/Users/justin.collum/Documents/work/sales-docs/node_modules/@artilleryio/int-core/lib/engine_http.js:1014:7)
    at /Users/justin.collum/Documents/work/sales-docs/node_modules/async/dist/async.js:3113:16
    at replenish (/Users/justin.collum/Documents/work/sales-docs/node_modules/async/dist/async.js:1014:17)
    at /Users/justin.collum/Documents/work/sales-docs/node_modules/async/dist/async.js:1019:9
    at eachLimit$1 (/Users/justin.collum/Documents/work/sales-docs/node_modules/async/dist/async.js:3199:24)
    at Object.<anonymous> (/Users/justin.collum/Documents/work/sales-docs/node_modules/async/dist/async.js:1049:16)
    at runOnErrorHooks (/Users/justin.collum/Documents/work/sales-docs/node_modules/@artilleryio/int-core/lib/engine_http.js:1010:9)
    at /Users/justin.collum/Documents/work/sales-docs/node_modules/@artilleryio/int-core/lib/engine_http.js:770:13
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
error Command failed with exit code 11.

I have two functions in my processors file:

// ---- UUID injection ----
export function beforeScenario(context, _, next) {
  context.vars.CORR_ID = `artillery-perf-testing-${uuidv4()}`;
  console.log(`Correlation ID: ${context.vars.CORR_ID}`);

  return next();
}

export function evaluateTimings(requestParams, response, context, ee, next) {
  const accountId = context.vars.$loopElement; // Get current account ID
  const responseTime = response.timings?.phases?.total || 'unknown';
  const statusCode = response.statusCode;
  ++loopCount;

  console.log(
    `Iteration ${loopCount}, 🕐 Account ${accountId}: ${responseTime}ms (${statusCode})`
  );

  // Log slow requests (>10 seconds)
  if (responseTime > 10000) {
    console.log(`🐌 SLOW: Account ${accountId} took ${responseTime}ms`);
  }

  // Log very slow requests (>15 seconds)
  if (responseTime > 15000) {
    console.log(`🚨 VERY SLOW: Account ${accountId} took ${responseTime}ms`);
  }

  return next();
}

it's hitting those functions fine many times and then falling over around 10k iterations. I'll post conifg if needed. But these parts seem relevant:

export const config = {
  target: 'https://redacted',
  processor: '../processors.js',

...

export const scenarios = [
  {
    name: 'GQL perf testing',
    beforeScenario: 'beforeScenario',
...
              capture: { body: 'respBody' },
              afterResponse: ['evaluateTimings'], // add logResponse to see the http result
... 

Again, it seems to have no issue firing off those two functions. But it's hitting processFunc is not a function which tells me that there is a function missing. But the only functions I'm importing are being hit with no issue.

[jcollum-nutrien]

If I run my config with about 5k total requests it never hits this bug.