Cluster connection error [ErrorReply: ERR Protocol error: unauthenticated multibulk length]

Author: xtianus79Created Oct 5, 2022Updated Aug 26, 2026

LabelsBugstale

I am getting an error with these connection settings. Related to the previous error but different, this one is connected directly with the node-redis cluster connection:

The error I keep getting is this. [ErrorReply: ERR Protocol error: unauthenticated multibulk length]

javascript

this.client = createCluster({
        rootNodes: [
          {
            url: 'redis://ip.address.here:6379',
            username: 'default',
            password: 'password'
          },
          {
            url: 'redis://ip.address.here:6379',
            username: 'default',
            password: 'password'
          },
          {
            url: 'redis://ip.address.here:6379',
            username: 'default',
            password: 'password'
          },
          {
            url: 'redis://ip.address.here:6379',
            username: 'default',
            password: 'password'
          },
          {
            url: 'redis://ip.address.here:6379',
            username: 'default',
            password: 'password'
          },
          {
            url: 'redis://ip.address.here:6379',
            username: 'default',
            password: 'password'
          },
        ]
			});

Environment:

Node.js Version: 16
Redis Server Version: 7.0.4
Node Redis Version: 4.+ latest
Platform: linux/ubuntu

Source: redis/node-redis

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