https://bugzilla.wikimedia.org/show_bug.cgi?id=23368

Markus Krötzsch <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|$wgUseGzip buggy in         |$wgUseFileCache with
                   |combination with            |$wgUseGzip fails when
                   |wgUseFileCache and PHP      |Apache compression is
                   |accelerator                 |enabled

--- Comment #3 from Markus Krötzsch <[email protected]> 2011-09-26 
09:36:22 UTC ---
Yes, this is the case for me. But is this not still an MW bug? The setting
$wgUseGzip = true; reduces cache size by gzipping the cached html. It also
reduces the CPU load for gzipping cached pages on the fly. On the other hand,
the Apache compression is independently useful if the server serves other
content.

So the two settings are not alternative ways of doing the same thing, they
merely overlap in some areas. It seems that one wants to have both features
enabled. Could MW not somehow send the cached data in such a way that it is not
re-zipped by Apache? Or is the solution to somehow configure Apache to not
re-compress files when they come from the cache (how?)?

It seems there are the following options for this report:

(a) Close as "invalid" and declare that the asked-for function is not intended
to be provided by MediaWiki at all (i.e. that MW is not generally usable with
Apache compression) or that the error is on the side of Apache or its
configuration.

(b) Close as "wontfix" and declare that this is an accepted problem/undesirable
limitation of MediaWiki, but that its solution is too complicated to justify
the investment of resources needed to fix it.

(c) Keep it open and eventually do something to allow the use of compressed
caches on a server with default compression.

In case (a) and (b) the documentation on $wgUseGzip = true; should be updated
to warn users of .

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