023-12-12 10:58:07 2023/12/12 02:58:07 [info] 48#48: 1302 multi: get new connection, c: 00007F78C4FE1FF0, code -2
2023-12-12 10:58:07 2023/12/12 02:58:07 [info] 48#48: 1302 multi: connect new to backend 00007F78C4FE1FF0
2023-12-12 10:58:07 2023/12/12 02:58:07 [info] 48#48: 1302 dubbo: pc 00007F78C4FE1FF0 create dubbo connection 00007F78C4D5D3D0
2023-12-12 10:58:09 2023/12/12 02:58:09 [info] 48#48: 1302 dubbo: response parse again
2023-12-12 10:58:09 2023/12/12 02:58:09 [info] 48#48: 1302 dubbo: response parse again
2023-12-12 10:58:09 2023/12/12 02:58:09 [info] 48#48: 1302 dubbo: response parse again
2023-12-12 10:58:09 2023/12/12 02:58:09 [info] 48#48: 1302 dubbo: response parse again
2023-12-12 10:58:09 2023/12/12 02:58:09 [warn] 48#48: 1302 multi: multi connection detach not empty 00007F78C4FE1FF0
2023-12-12 10:58:09 2023/12/12 02:58:09 [info] 48#48: 1302 multi: multi connection detach 00007F78C4FE1FF0
2023-12-12 10:58:09 2023/12/12 02:58:09 [info] 48#48: 1301 multi: free request c: 00007F78C4FE1FF0, r: 00007F78C4D78A70 end while connecting to upstream, client: 172.20.0.1, server: , subrequest: "/dubbo/nacos", upstream: "dubbo://172.20.0.4:20880"
2023-12-12 10:58:09 2023/12/12 02:58:09 [info] 48#48: 1302 multi: free http request 00007F78C4D78A70, 00007F78C4FE1FF0
2023-12-12 10:58:09 2023/12/12 02:58:09 [error] 48#48: 1301 upstream timed out (110: Operation timed out) while connecting to upstream, client: 172.20.0.1, server: , subrequest: "/dubbo/nacos", upstream: "dubbo://172.20.0.4:20880"