I’m encountering the following error on Kong:
2025/06/23 15:35:41 [error] 16198#0: *2560650 upstream prematurely closed connection while reading response header from upstream, client: 192.168.2.2, server: kong, request: “POST /api/v1/r/statement/mini HTTP/1.1”, upstream: “https://192.168.2.2:6655/v2/custom/core/customer/statement/mini”, host: “192.168.2.2:8443”
I have already checked the network layer, and I can confirm that multiple packets are successfully landing on my Core server from Kong at the same time. However, randomly, for one of the packets, this error appears, and the transaction does not reach the Core system.