### What I’ve Tried: * Restarted and redeployed the service * Cleared all queued executions * No major changes were made to the project before this started happening ### Details: * **Project**: `optimistic-prosperity` * **Service**: Primary (n8n) * **Environment**: Production * **Platform**: Railway Free Tier * **Tool**: n8n (workflow automation) ### Ask: * Has anyone faced this `-1 concurrency` issue? * Is this a bug or a platform limitation? * Any way to fix or work around it on the free plan? Thanks in advance for the help

n8n Workflow Executions Queued — Showing “-1 Concurrent Executions” Limit

sxnitin

FREEOP

a year ago

What I’ve Tried:

Restarted and redeployed the service
Cleared all queued executions
No major changes were made to the project before this started happening

Details:

Project: optimistic-prosperity
Service: Primary (n8n)
Environment: Production
Platform: Railway Free Tier
Tool: n8n (workflow automation)

Ask:

Has anyone faced this -1 concurrency issue?
Is this a bug or a platform limitation?
Any way to fix or work around it on the free plan?

Thanks in advance for the help

$10 Bounty

3 Replies

Railway

BOT

a year ago

Hey there! We've found the following might help you get unblocked faster:

If you find the answer from one of these, please let us know by solving the thread!

phoenixauro

HOBBY

a year ago

'-1 Concurrent Executions' means there is no configured upper limit. Which means unlimited concurrent executions for n8n.

I think your jobs are queuing because you are on the free plan and there are limited amount of cpu threads to execute jobs concurrently.

idiegea21

HOBBY

a year ago

you need to add Redis and at least one worker to enable queue mode and control execution concurrency—or switch to a hosting environment (or plan) that supports these features.

Welcome!