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cluster: Add support to cluster to work with `NODE_OPTIONS="--inspect" #19165

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cluster: Add support to cluster to work with `NODE_OPTIONS="--inspect" #19165

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19c4ec3
cluster: Add support to cluster to work with NODE_OPTIONS="--inspect"
sameer-coder Mar 6, 2018
ac832ab
cluster: Added test which spawns multiple workers for cluster to …
sameer-coder Mar 7, 2018
eb8f567
cluster: Changed multi-line template string in test-inspect-support-f…
sameer-coder Mar 8, 2018
ff81da0
cluster: spawning multiple workers in test-inspect-support-for-node_o…
sameer-coder Mar 16, 2018
d2cf4a4
cluster: Using common.mustCall to wrap callback in test-inspect-suppo…
sameer-coder Mar 16, 2018
907b8ff
cluster: const numWorkers added in test-inspect-support-for-node_options
sameer-coder Mar 17, 2018
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5 changes: 4 additions & 1 deletion lib/internal/cluster/master.js
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Original file line number Diff line number Diff line change
Expand Up @@ -102,11 +102,14 @@ function createWorkerProcess(id, env) {
const workerEnv = util._extend({}, process.env);
const execArgv = cluster.settings.execArgv.slice();
const debugArgRegex = /--inspect(?:-brk|-port)?|--debug-port/;
const nodeOptions = process.env.NODE_OPTIONS ?
process.env.NODE_OPTIONS : '';

util._extend(workerEnv, env);
workerEnv.NODE_UNIQUE_ID = '' + id;

if (execArgv.some((arg) => arg.match(debugArgRegex))) {
if (execArgv.some((arg) => arg.match(debugArgRegex)) ||
nodeOptions.match(debugArgRegex)) {
let inspectPort;
if ('inspectPort' in cluster.settings) {
if (typeof cluster.settings.inspectPort === 'function')
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29 changes: 29 additions & 0 deletions test/parallel/test-inspect-support-for-node_options.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,29 @@
'use strict';
const common = require('../common');
const cluster = require('cluster');
const assert = require('assert');

common.skipIfInspectorDisabled();

checkForInspectSupport('--inspect');

function checkForInspectSupport(flag) {

const nodeOptions = JSON.stringify(flag);
process.env.NODE_OPTIONS = flag;

if (cluster.isMaster) {
for (let i = 0; i < 2; i++) {
cluster.fork();
}

cluster.on('online', (worker) => {
worker.disconnect();
});

cluster.on('exit', common.mustCall((worker, code, signal) => {
const errMsg = `For NODE_OPTIONS ${nodeOptions}, failed to start cluster`;
assert.strictEqual(worker.exitedAfterDisconnect, true, errMsg);
}, 2));
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Tiny nit: maybe make the 2 here and in the for loop that forks the workers a const since they should match?

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@richardlau I have added the const and replaced the 2 both in the for loop and callback.

}
}