yumoqing 33d332e36d fix: handle TCPTransport closed errors with connection health checks ...

- Add _check_alive() to verify connections before yielding from pool
- Discard dead connections and create fresh ones automatically
- Add _discard_sqlor() helper to safely remove broken connections
- Detect and handle 'closed'/'handler is closed' RuntimeError during use
- Add unit test for connection discard behavior

2026-06-27 17:53:21 +08:00

..

test_conn_discard.py

fix: handle TCPTransport closed errors with connection health checks

2026-06-27 17:53:21 +08:00