ERROR: Node name is required

Usage:
  php nucleus_task_worker.php <node-name> [NUCLEUS_CONF=/path/to/conf.php] [WORKER_INSTANCE=N]

Examples:
  php nucleus_task_worker.php prod-web-01 NUCLEUS_CONF=/var/www/html/config/nucleus-config/nucleus_conf.php WORKER_INSTANCE=1
  php nucleus_task_worker.php $(hostname) NUCLEUS_CONF=/var/www/html/config/nucleus-config/nucleus_conf.php

Recommended:
  Use manage_workers.sh which automatically determines node name
  ./manage_workers.sh start