Previously workers were launched sequentially (2-3s each), causing
30+ second delays per pool in iteration #1 and making the health
check cycle stall. Now:
- Collect all work items for a pool into an array first
- Launch all workers in parallel with background jobs (&)
- Wait for each job in sequence, tracking results
Also removed dead code: launch_worker() and launch_pool_workers()
functions (replaced by inline parallel launch), and get_work_number()
and get_work_type() helpers (no longer needed).
freemo
978200e48a