Error 400 -> Error 502
Hi, we are using HAProxy 1.5-dev21 as loadbalancer frontend and some NGINX 1.4 servers as backend. Everything is working perfect. Great piece of software! One question: If some client sends a request like: GET something.someone This request is forwarded to the backends even if it is not a valid request. The backend (NGINX) replies with an error page 400 (Bad Request). This is an invalid response to HAProxy which will deliver a 502 (Bad Gateway) error to the client. Response to client: 2014-01-14T15:17:04+01:00 somehostname haproxy[9]: xxx.1xx.2xx.xx:50294 [14/Jan/2014:15:17:04.648] application8089 application8089/somehostname.some.domain 0/0/0/-1/1 502 370 - - PH-- 475/441/8/0/0 0/0 \"GET usacording.com HTTP/1.0\" HAProxy error: [14/Jan/2014:16:52:07.357] backend application8089 (#11) : invalid response frontend application8089 (#11), server somehostname.some.domain (#2), event #2211 src xxx.1xx.2xx.xx:55112, session #2141081, session flags 0x048e HTTP msg state 26, msg flags 0x, tx flags 0x0830 HTTP chunk len 0 bytes, HTTP body len 0 bytes buffer flags 0x8023, out 0 bytes, total 166 bytes pending 166 bytes, wrapping at 16384, error at position 0: 0 \r\n 8 400 Bad Request\r\n 00053 \r\n 00077 400 Bad Request\r\n 00120 nginx\r\n 00148 \r\n 00157 \r\n Is it possible to respond the original error (400) to the client? Regards, Florian -- EveryWare AG Florian Engelmann Systems Engineer Zurlindenstrasse 52a CH-8003 Zürich tel: +41 44 466 60 00 fax: +41 44 466 60 10 mail: mailto:florian.engelm...@everyware.ch web: http://www.everyware.ch
Re: Error 400 -> Error 502
Hi, "option accept-invalid-http-response" was the solution. Regards, Florian On 14.01.2014 17:31, Florian Engelmann wrote: Hi, we are using HAProxy 1.5-dev21 as loadbalancer frontend and some NGINX 1.4 servers as backend. Everything is working perfect. Great piece of software! One question: If some client sends a request like: GET something.someone This request is forwarded to the backends even if it is not a valid request. The backend (NGINX) replies with an error page 400 (Bad Request). This is an invalid response to HAProxy which will deliver a 502 (Bad Gateway) error to the client. Response to client: 2014-01-14T15:17:04+01:00 somehostname haproxy[9]: xxx.1xx.2xx.xx:50294 [14/Jan/2014:15:17:04.648] application8089 application8089/somehostname.some.domain 0/0/0/-1/1 502 370 - - PH-- 475/441/8/0/0 0/0 \"GET usacording.com HTTP/1.0\" HAProxy error: [14/Jan/2014:16:52:07.357] backend application8089 (#11) : invalid response frontend application8089 (#11), server somehostname.some.domain (#2), event #2211 src xxx.1xx.2xx.xx:55112, session #2141081, session flags 0x048e HTTP msg state 26, msg flags 0x, tx flags 0x0830 HTTP chunk len 0 bytes, HTTP body len 0 bytes buffer flags 0x8023, out 0 bytes, total 166 bytes pending 166 bytes, wrapping at 16384, error at position 0: 0 \r\n 8 400 Bad Request\r\n 00053 \r\n 00077 400 Bad Request\r\n 00120 nginx\r\n 00148 \r\n 00157 \r\n Is it possible to respond the original error (400) to the client? Regards, Florian
Re: Error 400 -> Error 502
It should be considered as a temporary workaround until you fix your broken application. Baptiste Le 15 janv. 2014 11:20, "Florian Engelmann" a écrit : > Hi, > > "option accept-invalid-http-response" > > was the solution. > > Regards, > Florian > > On 14.01.2014 17:31, Florian Engelmann wrote: > >> Hi, >> >> we are using HAProxy 1.5-dev21 as loadbalancer frontend and some NGINX >> 1.4 servers as backend. Everything is working perfect. Great piece of >> software! >> >> One question: >> If some client sends a request like: >> >> GET something.someone >> >> This request is forwarded to the backends even if it is not a valid >> request. The backend (NGINX) replies with an error page 400 (Bad >> Request). This is an invalid response to HAProxy which will deliver a >> 502 (Bad Gateway) error to the client. >> >> Response to client: >> 2014-01-14T15:17:04+01:00 somehostname haproxy[9]: >> xxx.1xx.2xx.xx:50294 [14/Jan/2014:15:17:04.648] application8089 >> application8089/somehostname.some.domain 0/0/0/-1/1 502 370 - - PH-- >> 475/441/8/0/0 0/0 \"GET usacording.com HTTP/1.0\" >> >> HAProxy error: >> [14/Jan/2014:16:52:07.357] backend application8089 (#11) : invalid >> response >>frontend application8089 (#11), server somehostname.some.domain (#2), >> event #2211 >>src xxx.1xx.2xx.xx:55112, session #2141081, session flags 0x048e >>HTTP msg state 26, msg flags 0x, tx flags 0x0830 >>HTTP chunk len 0 bytes, HTTP body len 0 bytes >>buffer flags 0x8023, out 0 bytes, total 166 bytes >>pending 166 bytes, wrapping at 16384, error at position 0: >> >>0 \r\n >>8 400 Bad Request\r\n >>00053 \r\n >>00077 400 Bad Request\r\n >>00120 nginx\r\n >>00148 \r\n >>00157 \r\n >> >> Is it possible to respond the original error (400) to the client? >> >> Regards, >> Florian >> >> >> >
