Apache cache serving partial content 206 responses to requests for the full content

[Henk Bokhoven]

Apache is caching 206 responses.
This is a known bug: https://issues.apache.org/bugzilla/show_bug.cgi?id=49113
has been fixed in the trunk (http://svn.apache.org/viewvc?view=revision&revision=933919) but not in 2.2.1x

[1] Description: Ubuntu 10.04.3 LTS, Release: 10.04
[2] Package: latest apache2 / apache2-mpm-worker 2.2.14-5ubuntu8.7
[3] Expected to happen:
HEAD "http://example.com/filename.swf"
200 OK
Cache-Control: max-age=604800
Connection: close

[4] What happened instead:
HEAD "http://example.com/filename.swf"
206 Partial Content
Cache-Control: max-age=604800

Cleaned up the cached file by hand from the CacheRoot

My advise: apply the 2 patches as discussed here:

http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/STATUS?view=markup&pathrev=1165626

That makes: http://people.apache.org/~minfrin/httpd-cache-partial-2.2.patch
and
http://people.apache.org/~minfrin/httpd-cache-partial2-2.2.patch

[Chuck Short (zulcss)]

Thanks this will be considered for the LTS, however it needs to be confirmed in oneiric first, are you available to see if its fixed in oneiric?

[Henk Bokhoven (bokh)]

Thanks Chuck.
All our production and staging servers run Ubuntu 10.04 LTS, so sadly I'm not able to reproduce this (quickly) on Ubuntu 11.10 (Oneiric Ocelot).

[Henk Bokhoven (bokh)]

Browsing the Apache2 codebase for Oneiric, the 2 mentioned patches have NOT been applied there.

mod_cache:
Oneiric Apache2-source: http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/oneiric/apache2/oneiric/view/head:/modules/cache/mod_cache.c
Apache2-patch: http://people.apache.org/~minfrin/httpd-cache-partial2-2.2.patch

mod_disk_cache:
Oneiric Apache2-source: http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/oneiric/apache2/oneiric/view/head:/modules/cache/mod_disk_cache.c
Apache2-patch: http://people.apache.org/~minfrin/httpd-cache-partial-2.2.patch