RE: mod_disk_cache causing corrupted output on server side includes?

"Geoff Millikan" <gmillikan@xxxxxxxxxxxxx> · Wed, 9 Jun 2010 17:14:00 -0700

Submitted bug report 6 days ago but no movement.  Tips?

https://issues.apache.org/bugzilla/show_bug.cgi?id=49385

Thanks!

> -----Original Message-----
> From: Geoff Millikan
> Sent: Thursday, June 03, 2010 2:25 PM
> To: users@xxxxxxxxxxxxxxxx
> Subject:  mod_disk_cache causing corrupted 
> output on server side includes?
> 
> Dear List,
> 
> It appears that when mod_disk_cache reads server side 
> includes to create its final cached web page, it sometimes 
> corrupts the included file.
> 
> I think the issue may be that the included file is getting 
> DEFLATEd and Apache is intermittently forgetting to ungzip it 
> prior to putting it into the parent page.
> 
> Any other thoughts?
> 
> Thanks,
> 
> http://www.t1shopper.com/
> 
> Details: The parent web page is called "index.shtml" and the 
> child file is getting included like this:
> <!--#include virtual="/dir/include/my_html_file.html" -->
> 
> Everything else on the page looks fine but where the 
> my_html_file.html should be we see binary output in the 
> source code like this:
> í\énÛHþÜ|á]åâu?-SìA½¡!ŸÄoÿ›IÅÇsØß'±"’ÿ ¼ñ*dLXúIpV.n§Œ 
> ©äÉb®H&Ùˆð˜I
> 
> If I restart Apache, the problem remains. But the problem 
> goes away if I delete the cache on the web server. So the 
> cache must have gotten corrupted. I can refresh the page many 
> times after that and the page is fine. This good page is kept 
> in cache for about 30 days because of the config settings (below).
> 
> 
> LoadModule deflate_module modules/mod_deflate.so
> DeflateCompressionLevel 1
> DeflateMemLevel 9
> DeflateWindowSize 15
> SetEnvIfNoCase Request_URI \
> \.(?:gif|jpe?g|png|ico)$ no-gzip dont-vary
> #Header append Vary User-Agent env=!dont-vary
> 
> 
> LoadModule disk_cache_module modules/mod_disk_cache.so
> CacheRoot /var/httpd/proxy/
> CacheEnable disk /
> CacheDisable /i
> CacheMaxFileSize 500000
> CacheMinFileSize 1000
> CacheDirLevels 2
> CacheDirLength 2
> CacheIgnoreCacheControl Off
> CacheIgnoreNoLastMod On
> CacheIgnoreHeaders Set-Cookie
> CacheLastModifiedFactor 0.1
> CacheMaxExpire 172800
> CacheDefaultExpire 86400 
> 
> http://mail-archives.apache.org/mod_mbox/httpd-users/201004.mbox/%3C9E388FA64DD04B3591A47DD9847026E1@rabbithill%3E
> 
> 
> 