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From bugzi...@apache.org
Subject [Bug 50317] Possible error in mod_cache's "Avoiding the Thundering Herd"
Date Thu, 22 May 2014 08:37:24 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=50317

--- Comment #36 from jkaluza@redhat.com ---
The problem is that key is generated without opening cached entity in this
place:

http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/modules/cache/mod_cache.c?revision=1497099&view=markup#l124

So in this case "accept-encoding" is not in URL, but in the following case,
cached entity is opened and accept-encoding is present:

svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/modules/cache/cache_util.c?revision=1053600&view=markup#l648


In httpd-2.4, the code has been changed a bit in svn.apache.org/r1004220, but
as far as I understand it, the logic remains the same (so the problem could
exist in 2.4.x too). I will try to reproduce it in 2.4.x to be 100% sure.

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