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Code Issues Releases Activity

cluster: add support for NODE_OPTIONS="--inspect"

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When using cluster and --inspect as cli argument it is correctly
handled and each worker will use a different port, this was
fixed by #13619. But when env var NODE_OPTIONS="--inspect"
is set this logic doesn't apply and the workers will fail as they
try to attach to the same port.

Fixes: https://github.com/nodejs/node/issues/19026

PR-URL: https://github.com/nodejs/node/pull/19165
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
This commit is contained in:
Sameer Srivastava 2018-03-06 14:27:49 +05:30 committed by Richard Lau
parent 6a9f049968
commit 9b34ea6161
2 changed files with 34 additions and 1 deletions
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5
lib/internal/cluster/master.js
View File

@ -103,11 +103,14 @@ 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')

30
test/parallel/test-inspect-support-for-node_options.js Normal file
View File

@ -0,0 +1,30 @@
'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);
const numWorkers = 2;
process.env.NODE_OPTIONS = flag;
if (cluster.isMaster) {
for (let i = 0; i < numWorkers; 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);
}, numWorkers));
}
}