Only rotates logs for one process of a cluster

[MorayM]

I have cluster running 3 instances of a process using the following ecosystem file:

module.exports = {
  apps: [{
    name: 'api.my_product.com',
    script: './dist/src/index.js',
    instances: 3,
    exec_mode: 'cluster',
    autorestart: true,
    watch: false,
    max_memory_restart: '2G',
    env: {
      NODE_ENV: 'production',
    },
  }],
};

Which writes logs to the default location ~/.pm2/logs.

I've installed pm2-logrotate with the default settings, however it only rotates the logs for the first process in the cluster. The other two processes continue writing to the same files. How do I configure it to rotate log files for all the processes?

[MorayM]

After a little more research it looks like this issue is only affecting one of my 3 app servers. They all have identical module_conf.json files. Is there any configuration stored elsewhere that may be responsible?

{
    "module-db-v2": {
        "pm2-logrotate": {}
    },
    "pm2-logrotate": {
        "max_size": "10M",
        "retain": "30",
        "compress": false,
        "dateFormat": "YYYY-MM-DD_HH-mm-ss",
        "workerInterval": "30",
        "rotateInterval": "0 0 * * *",
        "rotateModule": true
    }
}