Issue Connecting n8n to AWS ElastiCache Redis/Valkey Serverless

Augusto_Arre · November 24, 2025, 4:27pm

I am trying to connect n8n to an AWS ElastiCache Redis Serverless instance, but the connection fails. n8n works normally with standard Redis/valkey deployments, but when using the Serverless version, the application cannot establish a stable connection. It appears to be related to cluster mode, TLS settings, or compatibility issues with the serverless Redis endpoint. I need to determine whether n8n officially supports Redis or Valkey Serverless and what configuration changes or workarounds are required to make the integration work.

Using redis serverless

Using standard redis cluster disabled mode is working.

Parintele_Damaskin · November 24, 2025, 6:39pm

Hey @Augusto_Arre !

I think this ‘issue’s knows and there’s an opened PR on github… check here for further info :

github.com/n8n-io/n8n

Comment by marty-sullivan - fix(Redis): Allow for using AWS ElastiCache Serverless in Queue Mode

master ← cu-aaii:fix-redis-aws-elasticache-serverless

@mfsiega I'm going to just leave this as it is given that I don't have the addit…ional time to contribute effectively to this project given uncertainty. The minimal deployment would be: - Create an ElastiCache Serverless Deployment in AWS with networking that can be reached by your n8n instance - https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/GettingStarted.html - Valkey or Redis OSS should both work - Configure the following environment variables in your n8n main / queue servers: - `EXECUTIONS_MODE=queue` - `QUEUE_BULL_REDIS_CLUSTER_NODES=<elasticache_host_endpoint_address>:<elasticache_host_endpoint_port>` - `QUEUE_BULL_REDIS_ELASTICACHE_SERVERLESS=true`

Augusto_Arre · November 24, 2025, 9:55pm

that’s all man, It’s good to know that n8n doesn’t even have this feature, ill have to wait, and it looks like it will be a long time.