feat(core): Set OS process titles for n8n processes (#39362)

packages/@n8n/task-runner/src/start.ts

@@ -7,6 +7,8 @@ import type { HealthCheckServer } from './health-check-server';
 import { JsTaskRunner } from './js-task-runner/js-task-runner';
 import { TaskRunnerSentry } from './task-runner-sentry';
 
+process.title = 'n8n task-runner';
+
 // Initialize module paths from NODE_PATH environment variable.
 // This is necessary because Node.js doesn't automatically pick up NODE_PATH
 // after the process starts. Without this, external npm packages installed

packages/cli/bin/n8n

@@ -6,6 +6,10 @@ const path = require('path');
 // did get started from another folder that the root one.
 process.env.NODE_CONFIG_DIR = process.env.NODE_CONFIG_DIR || path.join(__dirname, 'config');
 
+// Must stay shorter than the original command line.
+// See https://nodejs.org/api/process.html#processtitle
+process.title = process.argv[2] ? `n8n ${process.argv[2]}` : 'n8n';
+
 // Check if version should be displayed
 const versionFlags = ['-v', '-V', '--version'];
 if (versionFlags.includes(process.argv.slice(-1)[0])) {