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[Plugin: WP Super Cache] Supercache only writing file for index, not subpages

  • I’m testing wp-super-cache and WP 2.8.3 with nginx on my personal server. wp-super-cache is in ‘ON’ mode, but for some reason the only super cache file that is written is index.html (and index.html.gz):

    /blog/wp-content/cache# ls -lR supercache
    total 4
    drwxrwx— 3 www-data www-data 4096 2009-08-11 22:01 http://www.bluebottle.net.au/

    total 4
    drwxrwx— 2 www-data www-data 4096 2009-08-11 22:01 blog/

    total 36
    -rw-r–r– 1 www-data www-data 26543 2009-08-11 22:01 index.html
    -rw-r–r– 1 www-data www-data 8108 2009-08-11 22:01 index.html.gz

    If I visit a page like /blog/category/uncategorized I’d expect a supercache file to be created, but it’s not.

    There are no warnings/errors output from PHP, and I’ve manually placed the two htaccess files (in /blog/.htaccess and /blog/wp-content/cache/.htaccess) to try and trick wp-super-cache into thinking everything is good (although up the top of the wp-super-cache settings page it still says in red ‘Mod rewrite may not be installed!’).

    I don’t have any rewrites in place to actually use the supercache files yet, but I’ll do that once I have the generation working.

    Does anyone know why supercache files beyond the index are not being created?

Viewing 5 replies - 1 through 5 (of 5 total)
  • More info, and some strange behaviour:
    Starting from an empty cache:
    When I hit my frontpage www.bluebottle.net.au/blog/ from a cookieless browser, the supercache file is created. When I hit it from a browser I’ve logged into my blog from, the supercache and standard cache files are created. When I hit any other page that should be cached, I get a standard cache file being created.

    I’ve noticed this though in the settings:

    Cache Contents

    WP-Cache (40.45KB)

    * 3 Cached Pages
    * 0 Expired Pages

    WP-Super-Cache (25.92KB)

    * 0 Cached Pages
    * 0 Expired Pages

    So it seems that it’s generating one super cache file, but not finding it again later?

    I’m having a similar issue as you but its backwords. My subpages are cached and the home page is not.

    I use this page to test if it has been gzipped or not. http://www.whatsmyip.org/http_compression/

    checkers, your blog is not on your site’s root, right?

    See http://wordpress.org/support/topic/301570#post-1182095

    merid, the above link may also solve your issue. I’m afraid it doesn’t on mine (my homepage is only WP-Cached not WP-SuperCached) but I’m satisfied with it for now.

    I hope this helps.

    Pinoy Thanks! That did the trick for me. Now I just need to get compression(gzipped) to work.

    Got it! The problem was related to my nginx configuration, specifically my pretty-url rewrite.
    I used to do this:
    if (!-e $request_filename) { rewrite ^/blog(.+)$ /blog/index.php?q=$1 last; }
    That triggered this check in WP-Super-Cache:

    Supercache caching disabled. Non empty GET request.
    Supercache disabled: GET or feed detected or disabled by config.

    I changed the rewrite rule to this:
    if (!-e $request_filename) { rewrite ^/blog(.+)$ /blog/index.php last; }

    And everything works fine. My thanks to the new(?) debug feature of wp-super-cache :-).

Viewing 5 replies - 1 through 5 (of 5 total)
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