Code-Node seems to be stuck/runs forever

Fabian_Hagen · August 4, 2025, 3:09pm

Describe the problem/error/question

I’ve a workflow which also has a code node executing javascript. The workflow executes until it reaches the code node. The the spinning symbol is runs and runs and runs. No error pops up.

I’ve other workflows with code nodes that worked perfect. I’ve upgrade to the newest version today.

Looking into the container, I’ve found these logs:

n8n-1 | Running node “Code” started
n8n-1 | 2025-08-04T14:56:45.656Z [Rudder] debug: in flush
n8n-1 | 2025-08-04T14:56:45.656Z [Rudder] debug: cancelling existing flushTimer…
n8n-1 | Querying database for waiting executions

Could it be, that the job is not pushed to the worker correctly? I’ve set up 3 workers beside my main instance.

What is the error message (if any)?

None.

#[details=“instance information”]

Debug information from dashboard

core

n8nVersion: 1.105.2
platform: docker (self-hosted) (docker compose)
nodeJsVersion: 22.17.0
database: postgres
executionMode: regular
concurrency: -1
license: enterprise (production)
consumerId:

storage

success: all
error: all
progress: false
manual: true
binaryMode: memory

pruning

enabled: true
maxAge: 336 hours
maxCount: 10000 executions

client

userAgent: mozilla/5.0 (macintosh; intel mac os x 10_15_7) applewebkit/537.36 (khtml, like gecko) chrome/138.0.0.0 safari/537.36
isTouchDevice: false

Generated at: 2025-08-04T15:07:13.812Z
[/details]

Please share your workflow

Share the output returned by the last node

Fabian_Hagen · August 5, 2025, 4:03am

I’ve tried internal and external mode for my runners. The latest working version was set up with external runners.

Here is my docker-compose.yml:

services:
  n8n:  
    image: docker.n8n.io/n8nio/n8n
    restart: always
    ports:
      - "5678:5678"
      - "5679:5679"
    env_file:
      - .env
    environment:
      - N8N_HOST=${SUBDOMAIN}.${DOMAIN_NAME}
      - N8N_PORT=5678
      - N8N_PROTOCOL=https
      - GENERIC_TIMEZONE=${GENERIC_TIMEZONE}
      - NODE_ENV=${NODE_ENV}
      - WEBHOOK_URL=https://${SUBDOMAIN}.${DOMAIN_NAME}
      - N8N_ENCRYPTION_KEY=${N8N_ENCRYPTION_KEY}
      - N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=${N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS}

      - OFFLOAD_MANUAL_EXECUTIONS_TO_WORKERS=${OFFLOAD_MANUAL_EXECUTIONS_TO_WORKERS}

      - N8N_RUNNERS_BROKER_LISTEN_ADDRESS=${N8N_RUNNERS_BROKER_LISTEN_ADDRESS}
      - N8N_RUNNERS_AUTH_TOKEN=${N8N_RUNNERS_AUTH_TOKEN}
      - N8N_RUNNERS_ENABLED=${N8N_RUNNERS_ENABLED}
      - N8N_RUNNERS_MODE=${N8N_RUNNERS_MODE}

      - N8N_EXTERNAL_STORAGE_S3_HOST=${N8N_EXTERNAL_STORAGE_S3_HOST}
      - N8N_EXTERNAL_STORAGE_S3_BUCKET_NAME=${N8N_EXTERNAL_STORAGE_S3_BUCKET_NAME}
      - N8N_EXTERNAL_STORAGE_S3_BUCKET_REGION=${N8N_EXTERNAL_STORAGE_S3_BUCKET_REGION}
      - N8N_EXTERNAL_STORAGE_S3_ACCESS_KEY=${N8N_EXTERNAL_STORAGE_S3_ACCESS_KEY}
      - N8N_EXTERNAL_STORAGE_S3_ACCESS_SECRET=${N8N_EXTERNAL_STORAGE_S3_ACCESS_SECRET}

      - DB_TYPE=postgresdb
      - DB_POSTGRESDB_USER=${DB_POSTGRESDB_USER}
      - DB_POSTGRESDB_PASSWORD=${DB_POSTGRESDB_PASSWORD}
      - DB_POSTGRESDB_DATABASE=${DB_POSTGRESDB_DATABASE}
      - DB_POSTGRESDB_HOST=${DB_POSTGRESDB_HOST}
      - DB_POSTGRESDB_PORT=${DB_POSTGRESDB_PORT}

      - QUEUE_BULL_REDIS_HOST=${QUEUE_BULL_REDIS_HOST}
      - QUEUE_BULL_REDIS_PORT=${QUEUE_BULL_REDIS_PORT}
      - QUEUE_BULL_REDIS_DB=${QUEUE_BULL_REDIS_DB}
      - N8N_LOG_LEVEL=${N8N_LOG_LEVEL}
    networks:
      - n8n_network
    extra_hosts:
      - "host.docker.internal:host-gateway"
    volumes:
      - n8n_data:/home/node/.n8n
      - ./local-files:/files

  n8n-runner-1:
    image: docker.n8n.io/n8nio/n8n
    entrypoint: ["/usr/local/bin/task-runner-launcher", "javascript"]
    env_file:
      - .env
    environment:
      - N8N_RUNNERS_TASK_BROKER_URI=http://n8n:5679
      - N8N_RUNNERS_MAX_CONCURRENCY=5
      - N8N_RUNNERS_AUTO_SHUTDOWN_TIMEOUT=15
      - N8N_RUNNERS_AUTH_TOKEN=${N8N_RUNNERS_AUTH_TOKEN}
      - EXECUTIONS_MODE=queue
      - GENERIC_TIMEZONE=${GENERIC_TIMEZONE}
    depends_on:
      - n8n
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:5680/healthz"]
      interval: 30s
      timeout: 10s
      retries: 3
    networks:
      - n8n_network

  n8n-runner-2:
    image: docker.n8n.io/n8nio/n8n
    entrypoint: ["/usr/local/bin/task-runner-launcher", "javascript"]
    env_file:
      - .env
    environment:
      - N8N_RUNNERS_TASK_BROKER_URI=http://n8n:5679
      - N8N_RUNNERS_MAX_CONCURRENCY=5
      - N8N_RUNNERS_AUTO_SHUTDOWN_TIMEOUT=15
      - N8N_RUNNERS_AUTH_TOKEN=${N8N_RUNNERS_AUTH_TOKEN}
      - EXECUTIONS_MODE=queue
      - GENERIC_TIMEZONE=${GENERIC_TIMEZONE}
    depends_on:
      - n8n
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:5680/healthz"]
      interval: 30s
      timeout: 10s
      retries: 3
    networks:
      - n8n_network

  n8n-runner-3:
    image: docker.n8n.io/n8nio/n8n
    entrypoint: ["/usr/local/bin/task-runner-launcher", "javascript"]
    env_file:
      - .env
    environment:
      - N8N_RUNNERS_TASK_BROKER_URI=http://n8n:5679
      - N8N_RUNNERS_MAX_CONCURRENCY=5
      - N8N_RUNNERS_AUTO_SHUTDOWN_TIMEOUT=15
      - N8N_RUNNERS_AUTH_TOKEN=${N8N_RUNNERS_AUTH_TOKEN}
      - EXECUTIONS_MODE=queue
      - GENERIC_TIMEZONE=${GENERIC_TIMEZONE}
    depends_on:
      - n8n
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:5680/healthz"]
      interval: 30s
      timeout: 10s
      retries: 3
    networks:
      - n8n_network

volumes:
  n8n_data:

networks:
  n8n_network:
    driver: bridge

And my .env-file:

# App
DOMAIN_NAME=my-awesome-domain.com
SUBDOMAIN=n8n
GENERIC_TIMEZONE=Europe/Berlin
NODE_ENV=dev
N8N_LOG_LEVEL=debug

# N8N
N8N_ENCRYPTION_KEY=my_encryption_key
N8N_PROTOCOL=https
N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=true
OFFLOAD_MANUAL_EXECUTIONS_TO_WORKERS=true

# Runners
N8N_RUNNERS_ENABLED=true
N8N_RUNNERS_BROKER_LISTEN_ADDRESS=0.0.0.0
N8N_RUNNERS_MODE=external
N8N_RUNNERS_AUTH_TOKEN=my_runners_auth_token

# S3 Storage
N8N_EXTERNAL_STORAGE_S3_HOST=https://s3.eu-central-1.amazonaws.com
N8N_EXTERNAL_STORAGE_S3_BUCKET_NAME=n8n-bucket
N8N_EXTERNAL_STORAGE_S3_BUCKET_REGION=eu-central-1
N8N_EXTERNAL_STORAGE_S3_ACCESS_KEY=s3_key
N8N_EXTERNAL_STORAGE_S3_ACCESS_SECRET=s3_secret

# Postgres
DB_POSTGRESDB_USER=db_user
DB_POSTGRESDB_PASSWORD=db_password
DB_POSTGRESDB_DATABASE=db
DB_POSTGRESDB_HOST=1.2.3.4
DB_POSTGRESDB_PORT=5432
DB_TYPE=postgresdb

QUEUE_BULL_REDIS_HOST=1.2.3.4
QUEUE_BULL_REDIS_PORT=6400
QUEUE_BULL_REDIS_DB=1

Jon · August 5, 2025, 6:12am

I am surprised anything is working, you have runners set to run in queue mode, your main instance is running in regular mode and your telling it to use workers but you don’t have any set up.

I would maybe start by going back to a simple setup and take it from there.

If you wanted to give queue mode a go as well you could add some workers to the mix as you don’t currently have any.

Fabian_Hagen · August 5, 2025, 6:49am

What do you mean by there are no workers set up? I’ve three runners configured in my docker-compose.yml.. Or am I missing something?

Fabian_Hagen:

  n8n-runner-1:
    image: docker.n8n.io/n8nio/n8n
    entrypoint: ["/usr/local/bin/task-runner-launcher", "javascript"]
    env_file:
      - .env
    environment:
      - N8N_RUNNERS_TASK_BROKER_URI=http://n8n:5679
      - N8N_RUNNERS_MAX_CONCURRENCY=5
      - N8N_RUNNERS_AUTO_SHUTDOWN_TIMEOUT=15
      - N8N_RUNNERS_AUTH_TOKEN=${N8N_RUNNERS_AUTH_TOKEN}
      - EXECUTIONS_MODE=queue
      - GENERIC_TIMEZONE=${GENERIC_TIMEZONE}
    depends_on:
      - n8n
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:5680/healthz"]
      interval: 30s
      timeout: 10s
      retries: 3
    networks:
      - n8n_network

Fabian_Hagen · August 5, 2025, 1:18pm

So I’ve managed to solve the issue by myself. At least for the wrong worker configuration in queue mode.

The issue with the stuck code node resolved by itself it seems..

And I still don’t get the difference between worker and runner.. If there is no difference, then either runner or worker should be removed from the docs.

Here are my docker-compose.yml and .env:

services:
  app:  
    image: docker.n8n.io/n8nio/n8n
    restart: always
    ports:
      - "5678:5678"
      - "5679:5679"
    env_file:
      - .env
    environment:
      - N8N_HOST=${SUBDOMAIN:-n8n}.${DOMAIN_NAME:-faaren.test}
      - N8N_PORT=${N8N_PORT:-5678}
      - N8N_PROTOCOL=${N8N_PROTOCOL:-https}
      - N8N_SECURE_COOKIE=${N8N_SECURE_COOKIE:-true}
      - GENERIC_TIMEZONE=${GENERIC_TIMEZONE:-Europe/Berlin}
      - NODE_ENV=${NODE_ENV:-dev}
      - WEBHOOK_URL=https://${SUBDOMAIN}.${DOMAIN_NAME}
      - N8N_LOG_LEVEL=${N8N_LOG_LEVEL:-debug}
      - N8N_ENCRYPTION_KEY=${N8N_ENCRYPTION_KEY}
      - N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=${N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS}
      - OFFLOAD_MANUAL_EXECUTIONS_TO_WORKERS=${OFFLOAD_MANUAL_EXECUTIONS_TO_WORKERS}
      - N8N_EXTERNAL_STORAGE_S3_HOST=${N8N_EXTERNAL_STORAGE_S3_HOST}
      - N8N_EXTERNAL_STORAGE_S3_BUCKET_NAME=${N8N_EXTERNAL_STORAGE_S3_BUCKET_NAME}
      - N8N_EXTERNAL_STORAGE_S3_BUCKET_REGION=${N8N_EXTERNAL_STORAGE_S3_BUCKET_REGION}
      - N8N_EXTERNAL_STORAGE_S3_ACCESS_KEY=${N8N_EXTERNAL_STORAGE_S3_ACCESS_KEY}
      - N8N_EXTERNAL_STORAGE_S3_ACCESS_SECRET=${N8N_EXTERNAL_STORAGE_S3_ACCESS_SECRET}
      - DB_TYPE=postgresdb
      - DB_POSTGRESDB_USER=${DB_POSTGRESDB_USER}
      - DB_POSTGRESDB_PASSWORD=${DB_POSTGRESDB_PASSWORD}
      - DB_POSTGRESDB_DATABASE=${DB_POSTGRESDB_DATABASE}
      - DB_POSTGRESDB_HOST=${DB_POSTGRESDB_HOST}
      - DB_POSTGRESDB_PORT=${DB_POSTGRESDB_PORT}
      - QUEUE_BULL_REDIS_HOST=${QUEUE_BULL_REDIS_HOST}
      - QUEUE_BULL_REDIS_PORT=${QUEUE_BULL_REDIS_PORT}
      - QUEUE_BULL_REDIS_DB=${QUEUE_BULL_REDIS_DB}
      - EXECUTIONS_MODE=${EXECUTIONS_MODE}
      - N8N_SECURE_COOKIE=${N8N_SECURE_COOKIE}
    networks:
      - n8n_network
    extra_hosts:
      - "host.docker.internal:host-gateway"
    volumes:
      - n8n_data:/home/node/.n8n
      - ./local-files:/files

  worker:
    image: docker.n8n.io/n8nio/n8n
    command: worker
    env_file:
      - .env
    environment:
      - EXECUTIONS_MODE=${EXECUTIONS_MODE}
      - GENERIC_TIMEZONE=${GENERIC_TIMEZONE}
      - N8N_LOG_LEVEL=${N8N_LOG_LEVEL}
      - N8N_ENCRYPTION_KEY=${N8N_ENCRYPTION_KEY}
      
      # Execution limits
      - EXECUTIONS_TIMEOUT=120
      - EXECUTIONS_TIMEOUT_MAX=300
      - N8N_BLOCK_ENV_ACCESS_IN_NODE=true
      - N8N_DISABLE_PRODUCTION_MAIN_PROCESS=true
      - NODES_TIMEOUT=60
      - N8N_DEFAULT_EXECUTION_TIMEOUT=180
    deploy:
      resources:
        limits:
          memory: 384M
          cpus: '0.8'
        reservations:
          memory: 192M
          cpus: '0.4'
    depends_on:
      - app
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:5678/healthz"]
      interval: 30s
      timeout: 10s
      retries: 3
    networks:
      - n8n_network

volumes:
  n8n_data:

networks:
  n8n_network:
    driver: bridge

# App
DOMAIN_NAME=my-domain.com
SUBDOMAIN=n8n
GENERIC_TIMEZONE=Europe/Berlin
NODE_ENV=dev

# N8N
N8N_ENCRYPTION_KEY=my_encryption_key
N8N_PROTOCOL=http
N8N_SECURE_COOKIE=false
N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=true
N8N_PORT=5678
N8N_LOG_LEVEL=debug

# Runners
EXECUTIONS_MODE=queue
OFFLOAD_MANUAL_EXECUTIONS_TO_WORKERS=true
N8N_RUNNERS_ENABLED=true
N8N_RUNNERS_BROKER_LISTEN_ADDRESS=0.0.0.0
N8N_RUNNERS_MODE=external
N8N_RUNNERS_AUTH_TOKEN=runners_token

# S3 Storage
N8N_EXTERNAL_STORAGE_S3_HOST=https://s3.eu-central-1.amazonaws.com
N8N_EXTERNAL_STORAGE_S3_BUCKET_NAME=my_bucket
N8N_EXTERNAL_STORAGE_S3_BUCKET_REGION=eu-central-1
N8N_EXTERNAL_STORAGE_S3_ACCESS_KEY=s3_key
N8N_EXTERNAL_STORAGE_S3_ACCESS_SECRET=s3_secret

# Postgres
DB_POSTGRESDB_USER=n8n_user
DB_POSTGRESDB_PASSWORD=n8n_password
DB_POSTGRESDB_DATABASE=n8n_local
DB_POSTGRESDB_HOST=postgres
DB_POSTGRESDB_PORT=5432
DB_TYPE=postgresdb

QUEUE_BULL_REDIS_HOST=valkey
QUEUE_BULL_REDIS_PORT=6379
QUEUE_BULL_REDIS_DB=0

system · August 12, 2025, 1:19pm

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