TroubleshootingInitial

Redis Connection Issues

Troubleshoot common Redis connection problems

Symptom: Connection refused to localhost:6379

Causes:

Redis server not running

Firewall blocking the port

Incorrect host/port configuration

Solutions:

Verify Redis is running:

redis-cli ping
# Should return PONG

Check Redis is listening:

netstat -tlnp | grep 6379

Verify configuration:

cache:
  redis:
    host: ${REDIS_HOST:localhost}
    port: ${REDIS_PORT:6379}

Symptom: NOAUTH Authentication required

Solution: Ensure password is configured:

cache:
  redis:
    password: ${REDIS_PASSWORD}

Symptom: Connection timed out

Solutions:

Increase timeout: connectTimeout: 5000

Check network latency to Redis server

Consider using connection pooling

High-performance caching for qqq applications with Redis and in-memory support.