Redis Server

[rafaeld03]

Bug Description

I created a redis database managed by Digital Ocean
The data below for connection.
N8n Cannot connect

username = default
password = ************************
host = db-redis-XXXXXXXXX-do-user-XXXXXX.f.db.ondigitalocean.com
port = 25061

LOG
2024-08-24T18:33:36.059Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:36.060Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:36.565Z | warn | Error with Redis: "{\n errno: -32,\n code: 'EPIPE',\n syscall: 'write',\n file: 'RedisServiceBaseClasses.js'\n}"
2024-08-24T18:33:36.566Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:36.567Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:37.071Z | warn | Error with Redis: "{\n errno: -32,\n code: 'EPIPE',\n syscall: 'write',\n file: 'RedisServiceBaseClasses.js'\n}"
2024-08-24T18:33:37.071Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:37.072Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:37.576Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:37.577Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:38.082Z | warn | Error with Redis: "{\n errno: -104,\n code: 'ECONNRESET',\n syscall: 'write',\n file: 'RedisServiceBaseClasses.js'\n}"
2024-08-24T18:33:38.083Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:38.083Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:38.588Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:38.588Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:39.092Z | warn | Error with Redis: "{\n errno: -104,\n code: 'ECONNRESET',\n syscall: 'write',\n file: 'RedisServiceBaseClasses.js'\n}"
2024-08-24T18:33:39.093Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"
2024-08-24T18:33:39.093Z | warn | Redis unavailable - trying to reconnect... "{ file: 'redis-client.service.js' }"

To Reproduce

  - EXECUTIONS_MODE=queue
  - QUEUE_BULL_REDIS_HOST=db-redis-XXXXXXXXX-do-user-XXXXXX.f.db.ondigitalocean.com
  - QUEUE_BULL_REDIS_PORT=25061
  - QUEUE_BULL_REDIS_USERNAME=default
  - QUEUE_BULL_REDIS_PASSWORD=**************
  - QUEUE_BULL_REDIS_TLS=TRUE

Expected behavior

redis connection

Operating System

Debian 12

n8n Version

1.55.3

Node.js Version

18.12.0

Database

PostgreSQL

Execution mode

queue

[Joffcom]

Hey @rafaeld03,

We have created an internal ticket to look into this which we will be tracking as "GHC-184"

[netroy]

Can you please check that

1. The redis instance actually supports TLS. If not, please try removing QUEUE_BULL_REDIS_TLS
2. The host n8n is running on is allowed to connect to the redis server with all that same config. it's possible that the DO has some kind of firewall that you might need to add rules to.

[rafaeld03]

• The redis instance actually supports TLS. If not, please try removing QUEUE_BULL_REDIS_TLS

yes, it is mandatory

• The host n8n is running on is allowed to connect to the redis server with all that same config. it's possible that the DO has some kind of firewall that you might need to add rules to.

I have this scenario working in version 1.40.0 of n8n
it didn't work in the new version

[netroy]

@rafaeld03 Can you please try setting QUEUE_BULL_REDIS_TLS to true instead of TRUE, and let us know if that fixes the issue 🙏🏽

[rafaeld03]

@rafaeld03 Can you please try setting QUEUE_BULL_REDIS_TLS to true instead of TRUE, and let us know if that fixes the issue 🙏🏽
@netroy
the change works
it still appears in the log that every 5 minutes it shows a connection error
but n8n is working
what could be happening every 5 minutes?

LOG
2024-08-26T18:13:17.766066492Z Initializing n8n process
2024-08-26T18:13:18.264122245Z n8n ready on 0.0.0.0, port 5678
2024-08-26T18:13:21.251783490Z Version: 1.55.3
2024-08-26T18:13:21.262291560Z
2024-08-26T18:13:21.262323043Z Editor is now accessible via:
2024-08-26T18:13:21.262326400Z https://paineleditor2.site.com.br:5678/
2024-08-26T18:18:19.036695128Z Redis unavailable - trying to reconnect...
2024-08-26T18:18:22.249822262Z Redis unavailable - trying to reconnect...
2024-08-26T18:18:22.350141899Z Redis unavailable - trying to reconnect...
2024-08-26T18:23:20.135361266Z Redis unavailable - trying to reconnect...
2024-08-26T18:23:23.047100113Z Redis unavailable - trying to reconnect...
2024-08-26T18:23:23.348389186Z Redis unavailable - trying to reconnect...

[janober]

Fix got released with n8n@1.57.0