Queue mode: Main thread slow performance

Questions
1

Hello guys,

My n8n setup runs quite slow when processing many items, despite having plenty of resources available. I have set up queue mode, with one main thread and 5 workers, running from pm2. However, I haven’t seen much improvement; the main thread is still slowing down. I can see that the workers are correctly set up and taking jobs according to pm2 logs.

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Does anyone have any tips on how to find the bottle neck or other guidance for better performance?

Information on your n8n setup

  • n8n version:
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app):
  • Operating system:
2

Hi,

Did you set that the main instance should not process any workloads?

Do you have many webhooks?

A lot of code nodes?

Regards
J.