I'm trying to get a mod_disk_cache setup to proxy the content generated by a proxy-balanced backend but am running into some problems. Here is a snip of the .conf ################ CONF #################### IfModule mod_cache.c> <IfModule mod_disk_cache.c> UseCanonicalName On CacheRoot /pagecache CacheEnable disk / CacheDisable /image_assets CacheDisable /images CacheDisable /pictures CacheDisable /flash CacheIgnoreNoLastMod On CacheIgnoreCacheControl Off CacheIgnoreHeaders Set-Cookie CacheDefaultExpire 360 CacheDirLevels 2 CacheDirLength 1 </IfModule> </IfModule> <Proxy balancer://sitev2_cluster> ExpiresActive On ExpiresDefault A86400 ExpiresByType application/xml A600 ExpiresByType text/xml A300 ExpiresByType text/html A300 ExpiresByType image/x-icon A2592000 ExpiresByType text/javascript A644800 ExpiresByType text/css A644800 ExpiresByType image/gif A604800 ExpiresByType image/png A604800 ExpiresByType image/jpeg A604800 ExpiresByType application/x-shockwave-flash A604800 ExpiresByType video/x-flv A604800 ExpiresByType application/pdf A604800 # Header set Cache-Control "must-revalidate" Header unset Vary BalancerMember http://127.0.0.1:7000 BalancerMember http://127.0.0.1:7001 BalancerMember http://127.0.0.1:7002 </Proxy> ProxyPass / balancer://sitev2_cluster/ ProxyPassReverse / balancer://sitev2_cluster/ ProxyRequests Off ################ END CONF #################### Now files are being written to /pagecache so it appears to work until you look at the headers and log that the backend generates. It seems that it still gets hit for content that should be cached. For example the homepage will show up as being requested in the backend logs at 01:05:00 that should then be picked up and used by Apache for 5minutes right? Instead I'll see more requests for it at 01:05:10 01:05:30 01:06:00 etc. Does Apache check with the backend for some reason before serving up the cached version? The backend doesn't write files itself but does return a Content-Type: for text/html, application/xml or whatever is appropriate. Also it seems that sometimes headers come back that show the backend was not hit. Meaning the first set of headers sent to the browsers send a "Server: Backend" but on reloading the page the "Server: Apache 2.2.3" shows up. However opening up the page in a different browser results in again "Server: Backend" Anyone having any experience with this type of setup I'd really appreciate hearing from you. --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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