Hi,
The Nginx hangs at proxying request body to the upstream server but with no error indicating what's happening until the client close the font-end connection. can somebody here help give me any clue? following is the debug log snippet:
2019/04/12 14:49:38 [debug] 92#92: *405 epoll add connection: fd:29 ev:80002005
2019/04/12 14:49:38 [debug] 92#92: *405 connect to 202.111.0.40:1084, fd:29 #406
2019/04/12 14:49:38 [debug] 92#92: *405 http upstream connect: -2
2019/04/12 14:49:38 [debug] 92#92: *405 posix_memalign: 0000000001CCA480:128 @16
2019/04/12 14:49:38 [debug] 92#92: *405 event timer add: 29: 2000:1555051780835
2019/04/12 14:49:38 [debug] 92#92: *405 http finalize request: -4, "/inetmanager/v1/configinfo?" a:1, c:2
2019/04/12 14:49:38 [debug] 92#92: *405 http request count:2 blk:0
2019/04/12 14:49:38 [debug] 92#92: *405 http run request: "/inetmanager/v1/configinfo?"
2019/04/12 14:49:38 [debug] 92#92: *405 http upstream check client, write event:1, "/inetmanager/v1/configinfo"
2019/04/12 14:49:38 [debug] 92#92: *405 http upstream request: "/inetmanager/v1/configinfo?"
2019/04/12 14:49:38 [debug] 92#92: *405 http upstream send request handler
2019/04/12 14:49:38 [debug] 92#92: *405 http upstream send request
2019/04/12 14:49:38 [debug] 92#92: *405 http upstream send request body
2019/04/12 14:49:38 [debug] 92#92: *405 chain writer buf fl:1 s:323
2019/04/12 14:49:38 [debug] 92#92: *405 chain writer in: 0000000001CB5498
2019/04/12 14:49:38 [debug] 92#92: *405 writev: 323 of 323
2019/04/12 14:49:38 [debug] 92#92: *405 chain writer out: 0000000000000000
2019/04/12 14:49:38 [debug] 92#92: *405 event timer del: 29: 1555051780835
2019/04/12 14:49:38 [debug] 92#92: *405 event timer add: 29: 600000:1555052378841
2019/04/12 14:50:17 [debug] 92#92: *405 http run request: "/inetmanager/v1/configinfo?"
2019/04/12 14:50:17 [debug] 92#92: *405 http upstream check client, write event:0, "/inetmanager/v1/configinfo"
2019/04/12 14:50:17 [info] 92#92: *405 epoll_wait() reported that client prematurely closed connection, so upstream connection is closed too while sending request to upstream, client: 202.111.0.51, server: , request: "GET /inetmanager/v1/configinfo HTTP/1.1", upstream: "http://202.111.0.40:1084/inetmanager/v1/configinfo", host: "202.111.0.37:1102"
2019/04/12 14:50:17 [debug] 92#92: *405 finalize http upstream request: 499
Thanks,
Allen
