Nikolai Gorchilov created TS-3995:
-------------------------------------
Summary: "[hcoofsr] conditional request, 200 response, send back
304 if possible [crc=304]" breaks akamaihd.net live streaming
Key: TS-3995
URL: https://issues.apache.org/jira/browse/TS-3995
Project: Traffic Server
Issue Type: Bug
Components: Cache, Core, HTTP
Reporter: Nikolai Gorchilov
Caching proxy running ATS 5.3.x (5.3.0, 5.3.1, 5.3.2 all fail) with
proxy.config.http.cache.when_to_revalidate = 4 breaks akamaihd.net live
streaming by overwriting non-cacheable origin response from 200 to 304 to a
client conditional request.
Here's a log of all request and response headers for a single transaction,
collected via debug:
{noformat}
+++++++++ Incoming Request +++++++++
-- State Machine Id: 168
GET
http:///z/delayed/indvsa2015_INDVSSATEST1DAY1_1@336263/464_209823ecd2922291-p.bootstrap?g=YCEAMIWDQZQT&hdntl=exp=1446809835~acl=%2f*~data=hdntl~hmac=ebaedb13781605ce7f9f26b84e1346a7d43ecf0dfcc99e6b53e32487565ba3f8&hdcore=3.7.0&plugin=aasp-3.7.0.39.44
HTTP/1.1
Host: sshds5-lh.akamaihd.net
Connection: keep-alive
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36
X-Requested-With: ShockwaveFlash/19.0.0.226
Accept: */*
DNT: 1
Referer: http://www.hotstar.com/
Accept-Encoding: gzip
Accept-Language: en-US,en;q=0.8,bg;q=0.6
Cookie: _alid_=PmjLqgcUUqw6TP5gtK/xbg==;
hdntl=exp=1446809835~acl=%2f*~data=hdntl~hmac=ebaedb13781605ce7f9f26b84e1346a7d43ecf0dfcc99e6b53e32487565ba3f8
If-Modified-Since: Thu, 05 Nov 2015 02:30:28 GMT
+++++++++ Proxy's Request +++++++++
-- State Machine Id: 168
GET
/z/delayed/indvsa2015_INDVSSATEST1DAY1_1@336263/464_209823ecd2922291-p.bootstrap?g=YCEAMIWDQZQT&hdntl=exp=1446809835~acl=%2f*~data=hdntl~hmac=ebaedb13781605ce7f9f26b84e1346a7d43ecf0dfcc99e6b53e32487565ba3f8&hdcore=3.7.0&plugin=aasp-3.7.0.39.44
HTTP/1.1
Host: sshds5-lh.akamaihd.net
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36
X-Requested-With: ShockwaveFlash/19.0.0.226
Accept: */*
DNT: 1
Referer: http://www.hotstar.com/
Accept-Encoding: gzip
Accept-Language: en-US,en;q=0.8,bg;q=0.6
Cookie: _alid_=PmjLqgcUUqw6TP5gtK/xbg==;
hdntl=exp=1446809835~acl=%2f*~data=hdntl~hmac=ebaedb13781605ce7f9f26b84e1346a7d43ecf0dfcc99e6b53e32487565ba3f8
If-Modified-Since: Thu, 05 Nov 2015 02:30:28 GMT
+++++++++ Proxy's Request after hooks +++++++++
-- State Machine Id: 168
GET
/z/delayed/indvsa2015_INDVSSATEST1DAY1_1@336263/464_209823ecd2922291-p.bootstrap?g=YCEAMIWDQZQT&hdntl=exp=1446809835~acl=%2f*~data=hdntl~hmac=ebaedb13781605ce7f9f26b84e1346a7d43ecf0dfcc99e6b53e32487565ba3f8&hdcore=3.7.0&plugin=aasp-3.7.0.39.44
HTTP/1.1
Host: sshds5-lh.akamaihd.net
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36
X-Requested-With: ShockwaveFlash/19.0.0.226
Accept: */*
DNT: 1
Referer: http://www.hotstar.com/
Accept-Encoding: gzip
Accept-Language: en-US,en;q=0.8,bg;q=0.6
Cookie: _alid_=PmjLqgcUUqw6TP5gtK/xbg==;
hdntl=exp=1446809835~acl=%2f*~data=hdntl~hmac=ebaedb13781605ce7f9f26b84e1346a7d43ecf0dfcc99e6b53e32487565ba3f8
If-Modified-Since: Thu, 05 Nov 2015 02:30:28 GMT
+++++++++ Incoming O.S. Response +++++++++
-- State Machine Id: 168
HTTP/1.1 200 OK
Server: AkamaiGHost
Mime-Version: 1.0
Content-Type: video/abst
Content-Length: 122
Last-Modified: Thu, 05 Nov 2015 02:30:28 GMT
Expires: Thu, 05 Nov 2015 11:38:01 GMT
Cache-Control: max-age=0, no-cache
Pragma: no-cache
Date: Thu, 05 Nov 2015 11:38:01 GMT
Connection: keep-alive
Set-Cookie: _alid_=PmjLqgcUUqw6TP5gtK/xbg==;
path=/z/delayed/indvsa2015_INDVSSATEST1DAY1_1@336263/;
domain=sshds5-lh.akamaihd.net
+++++++++ Base Header for Building Response +++++++++
-- State Machine Id: 168
HTTP/1.1 200 OK
Server: AkamaiGHost
Mime-Version: 1.0
Content-Type: video/abst
Content-Length: 122
Last-Modified: Thu, 05 Nov 2015 02:30:28 GMT
Expires: Thu, 05 Nov 2015 11:38:01 GMT
Cache-Control: max-age=0, no-cache
Pragma: no-cache
Date: Thu, 05 Nov 2015 11:38:01 GMT
Connection: keep-alive
Set-Cookie: _alid_=PmjLqgcUUqw6TP5gtK/xbg==;
path=/z/delayed/indvsa2015_INDVSSATEST1DAY1_1@336263/;
domain=sshds5-lh.akamaihd.net
+++++++++ Proxy's Response 2 +++++++++
-- State Machine Id: 168
HTTP/1.1 304 Not Modified
Date: Thu, 05 Nov 2015 11:38:01 GMT
Expires: Thu, 05 Nov 2015 11:38:01 GMT
Cache-Control: max-age=0, no-cache
Connection: keep-alive
+++++++++ Proxy's Response (Client Conditionals) +++++++++
-- State Machine Id: 168
HTTP/1.1 304 Not Modified
Date: Thu, 05 Nov 2015 11:38:01 GMT
Expires: Thu, 05 Nov 2015 11:38:01 GMT
Cache-Control: max-age=0, no-cache
Connection: keep-alive
{noformat}
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