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Root cause of client send RST?

The client run on a K8s node , wose port is 1864 , and the server port is 5432 ,a PostgreSQL server. Frame 27422 send reset to server,and the slient still send andou 2000 frame the server. And I how to analyze the root cause of frame 27422? Why client send RESET?

27416 2024-06-06 16:38:49.628021 172.16.67.222 1864 172.16.68.139 292271853 TCP 73 1864 → 5432 [PSH, ACK] Seq=26185778 Ack=33481796 Win=838912 Len=5 TSval=990578744 TSecr=3450689461 [TCP segment of a reassembled PDU]

27417 2024-06-06 16:38:49.628024 172.16.68.139 5432 172.16.67.222 3135413987 TCP 68 5432 → 1864 [ACK] Seq=33481796 Ack=26185783 Win=147712 Len=0 TSval=3450689462 TSecr=990578744

27418 2024-06-06 16:38:49.628027 172.16.67.222 1864 172.16.68.139 292271858 PGSQL 21488 >4

27419 2024-06-06 16:38:49.628036 172.16.67.222 1864 172.16.68.139 292293278 PGSQL 15492 >4

27420 2024-06-06 16:38:49.628089 172.16.67.222 1864 172.16.68.139 292308702 PGSQL 1496 >0

27421 2024-06-06 16:38:49.628153 172.16.67.222 1864 172.16.68.139 292310130 PGSQL 4357 >7

27422 2024-06-06 16:38:49.628156 172.16.67.222 1864 172.16.68.139 292076663 TCP 56 1864 → 5432 [RST] Seq=25990588 Win=0 Len=0

27423 2024-06-06 16:38:49.628200 172.16.67.222 1864 172.16.68.139 292314419 PGSQL 1496 >8

27424 2024-06-06 16:38:49.628214 172.16.67.222 1864 172.16.68.139 292315847 PGSQL 4352 >8

27425 2024-06-06 16:38:49.628226 172.16.67.222 1864 172.16.68.139 292320131 PGSQL 7208 >

27426 2024-06-06 16:38:49.628272 172.16.67.222 1864 172.16.68.139 292327271 PGSQL 1496 >4

Root cause of client send RST?

The client run on a K8s node , wose port is 1864 , and the server port is 5432 ,a PostgreSQL server. Frame 27422 send reset to server,and the slient still send andou 2000 frame the server. And I how to analyze the root cause of frame 27422? Why client send RESET?

27416   2024-06-06 16:38:49.628021  172.16.67.222   1864    172.16.68.139   292271853   TCP 73      1864 → 5432 [PSH, ACK] Seq=26185778 Ack=33481796 Win=838912 Len=5 TSval=990578744 TSecr=3450689461 [TCP segment of a reassembled PDU]

PDU] 27417 2024-06-06 16:38:49.628024 172.16.68.139 5432 172.16.67.222 3135413987 TCP 68 5432 → 1864 [ACK] Seq=33481796 Ack=26185783 Win=147712 Len=0 TSval=3450689462 TSecr=990578744

TSecr=990578744 27418 2024-06-06 16:38:49.628027 172.16.67.222 1864 172.16.68.139 292271858 PGSQL 21488 >4

>4 27419 2024-06-06 16:38:49.628036 172.16.67.222 1864 172.16.68.139 292293278 PGSQL 15492 >4

>4 27420 2024-06-06 16:38:49.628089 172.16.67.222 1864 172.16.68.139 292308702 PGSQL 1496 >0

>0 27421 2024-06-06 16:38:49.628153 172.16.67.222 1864 172.16.68.139 292310130 PGSQL 4357 >7

27422 >7 **27422 2024-06-06 16:38:49.628156 172.16.67.222 1864 172.16.68.139 292076663 TCP 56 1864 → 5432 [RST] Seq=25990588 Win=0 Len=0

Len=0** 27423 2024-06-06 16:38:49.628200 172.16.67.222 1864 172.16.68.139 292314419 PGSQL 1496 >8

>8 27424 2024-06-06 16:38:49.628214 172.16.67.222 1864 172.16.68.139 292315847 PGSQL 4352 >8

>8 27425 2024-06-06 16:38:49.628226 172.16.67.222 1864 172.16.68.139 292320131 PGSQL 7208 >

> 27426 2024-06-06 16:38:49.628272 172.16.67.222 1864 172.16.68.139 292327271 PGSQL 1496 >4

>4