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Fix for issue #4960 PM2 cluster mode ECONNREFUSED errors #4961

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Fix for issue #4960 PM2 cluster mode ECONNREFUSED errors #4961

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5e7a2de
Fix PM2 cluster mode ECONNREFUSED errors
bram-atmire Dec 28, 2025
24c96de
Fix ESLint errors in main.server.ts
bram-atmire Dec 29, 2025
126a0a0
Move DNS fix comment inline next to setDefaultResultOrder call
bram-atmire Jan 6, 2026
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8 changes: 8 additions & 0 deletions src/main.server.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,8 @@ import 'reflect-metadata';
*/
import '@angular/localize/init';

import { setDefaultResultOrder } from 'node:dns';

import {
bootstrapApplication,
BootstrapContext,
Expand All @@ -15,6 +17,12 @@ import {
import { AppComponent } from './app/app.component';
import { serverAppConfig } from './modules/app/server-app.config';

// Apply DNS resolution order fix for Node.js 17+ by preferring IPv4 over IPv6.
// This fixes "ECONNREFUSED ::1:8080" errors in PM2 cluster mode when
// the backend only listens on IPv4
// See https://github.com/DSpace/dspace-angular/issues/4960
setDefaultResultOrder('ipv4first');

const bootstrap = (context: BootstrapContext) => bootstrapApplication(AppComponent, serverAppConfig, context);

export default bootstrap;
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