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From Stefan Eissing <stefan.eiss...@greenbytes.de>
Subject delayed HEAD response on a proxy setup (trunk)
Date Thu, 30 Mar 2017 11:34:43 GMT
Doing a HEAD request via a proxy setup against localhost. Getting the response after a 5 second
delay. Frontend connection h1/h2 does not matter. Also does not matter if mod_proxy_http or
mod_proxy_http2.

Making the same request a GET works flawlessly. Also HEAD works right against current 2.4.x
build with same config.

Rings any bell? 

Someone doing a read with timeout?

[Thu Mar 30 11:23:30.272432 2017] [http:trace4] [pid 92406:tid 123145333862400] http_request.c(427):
[client 127.0.0.1:59674] Headers received from client:
[Thu Mar 30 11:23:30.272444 2017] [http:trace4] [pid 92406:tid 123145333862400] http_request.c(430):
[client 127.0.0.1:59674]   Host: test.example.org:12346
[Thu Mar 30 11:23:30.272450 2017] [http:trace4] [pid 92406:tid 123145333862400] http_request.c(430):
[client 127.0.0.1:59674]   User-Agent: curl/7.53.1
[Thu Mar 30 11:23:30.272455 2017] [http:trace4] [pid 92406:tid 123145333862400] http_request.c(430):
[client 127.0.0.1:59674]   Accept: */*
[Thu Mar 30 11:23:30.272461 2017] [http:trace4] [pid 92406:tid 123145333862400] http_request.c(430):
[client 127.0.0.1:59674]   Via: 1.1 test.example.org:12346 (Apache/2.5.0-dev)
[Thu Mar 30 11:23:30.272469 2017] [http:trace4] [pid 92406:tid 123145333862400] http_request.c(430):
[client 127.0.0.1:59674]   X-Forwarded-For: 127.0.0.1
[Thu Mar 30 11:23:30.272474 2017] [http:trace4] [pid 92406:tid 123145333862400] http_request.c(430):
[client 127.0.0.1:59674]   X-Forwarded-Host: test.example.org:12346
[Thu Mar 30 11:23:30.272480 2017] [http:trace4] [pid 92406:tid 123145333862400] http_request.c(430):
[client 127.0.0.1:59674]   X-Forwarded-Server: test.example.org
[Thu Mar 30 11:23:30.272485 2017] [http:trace4] [pid 92406:tid 123145333862400] http_request.c(430):
[client 127.0.0.1:59674]   Connection: Keep-Alive
[Thu Mar 30 11:23:30.272946 2017] [http:trace3] [pid 92406:tid 123145333862400] http_filters.c(1070):
[client 127.0.0.1:59674] Response sent with status 200, headers:
[Thu Mar 30 11:23:30.272962 2017] [http:trace5] [pid 92406:tid 123145333862400] http_filters.c(1079):
[client 127.0.0.1:59674]   Date: Thu, 30 Mar 2017 11:23:30 GMT
[Thu Mar 30 11:23:30.272968 2017] [http:trace5] [pid 92406:tid 123145333862400] http_filters.c(1082):
[client 127.0.0.1:59674]   Server: Apache/2.5.0-dev (Unix) OpenSSL/1.1.0e
[Thu Mar 30 11:23:30.272976 2017] [http:trace4] [pid 92406:tid 123145333862400] http_filters.c(900):
[client 127.0.0.1:59674]   Alt-Svc: h2=\\":12346\\", h2c=\\":12345\\", h2=\\"mod-h2.greenbytes.de:12346\\"
[Thu Mar 30 11:23:30.273008 2017] [http:trace4] [pid 92406:tid 123145333862400] http_filters.c(900):
[client 127.0.0.1:59674]   Connection: Upgrade, Keep-Alive
[Thu Mar 30 11:23:30.273015 2017] [http:trace4] [pid 92406:tid 123145333862400] http_filters.c(900):
[client 127.0.0.1:59674]   Last-Modified: Thu, 30 Mar 2017 11:23:26 GMT
[Thu Mar 30 11:23:30.273021 2017] [http:trace4] [pid 92406:tid 123145333862400] http_filters.c(900):
[client 127.0.0.1:59674]   ETag: \\"7d5-54bf0ebed8780\\"
[Thu Mar 30 11:23:30.273026 2017] [http:trace4] [pid 92406:tid 123145333862400] http_filters.c(900):
[client 127.0.0.1:59674]   Accept-Ranges: bytes
[Thu Mar 30 11:23:30.273043 2017] [http:trace4] [pid 92406:tid 123145333862400] http_filters.c(900):
[client 127.0.0.1:59674]   Content-Length: 2005
[Thu Mar 30 11:23:30.273046 2017] [http:trace4] [pid 92406:tid 123145333862400] http_filters.c(900):
[client 127.0.0.1:59674]   Keep-Alive: timeout=5
[Thu Mar 30 11:23:30.273050 2017] [http:trace4] [pid 92406:tid 123145333862400] http_filters.c(900):
[client 127.0.0.1:59674]   Content-Type: text/html
[Thu Mar 30 11:23:30.339478 2017] [proxy:debug] [pid 92409:tid 140735686718400] proxy_util.c(1838):
AH00925: initializing worker proxy:reverse shared
[...some more worker init stuff]
[Thu Mar 30 11:23:30.340340 2017] [proxy:debug] [pid 92409:tid 140735686718400] proxy_util.c(1914):
AH00930: initialized pool in child 92409 for (www.zeit.de) min=0 max=20 smax=20
[Thu Mar 30 11:23:35.277379 2017] [proxy:debug] [pid 92404:tid 123145474248704] proxy_util.c(3433):
[client 127.0.0.1:59673] AH02807: Removing header 'Upgrade' listed in Connection header
[Thu Mar 30 11:23:35.277421 2017] [proxy:debug] [pid 92404:tid 123145474248704] proxy_util.c(3433):
[client 127.0.0.1:59673] AH02807: Removing header 'Keep-Alive' listed in Connection header


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