Wordpress Cache-Enabler Plugin Caching search results with standard centminmod install ?

@julliuz also can make a custom search cache invalidation cronjob

Centmin Mod 123.09beta01's centmin.sh menu option 22 wordpress auto installer with Cache Enabler caching selected will also generate an optional cronjob to invalidate and remove Cache Enabler cached files from cache and look similar to:

Remove Cache Enabler's cached files every day at 11:16pm (every 24hrs).

Code (Text):

16 23 * * * echo "cache-enabler.domain.com cacheenabler cron"; sleep 174s ; rm -rf /home/nginx/domains/cache-enabler.domain.com/public/wp-content/cache/cache-enabler/* > /dev/null 2>&1

With above /search/ caching modifications, you could setup a separate /search/ cache invalidation cronjob which can have a shorter or longer interval than default Cache Enabler cache time.

---

For example delete /search/ cached files every 5 minutes

Code (Text):

*/5 * * * * echo "cache-enabler.domain.com cacheenabler search cron"; sleep 14s ; rm -rf /home/nginx/domains/cache-enabler.domain.com/public/wp-content/cache/cache-enabler/search/* > /dev/null 2>&1

 

@julliuz updated the configuration outlined previously and made some changes in /usr/local/nginx/conf/wpincludes/cache-enabler.domain.com/wpcacheenabler_cache-enabler.domain.com.conf

from

Code (Text):

   if ($args ~* s=(.*)) {
     set $cache_uri $request_uri;
     set $check_surl $cache_uri;
     set $cache_uri /search/$1;
   }
   add_header Check-Uri "$check_surl";
   add_header Set-Uri "$cache_uri";

   # default html file
   set $cache_enabler_uri '${custom_subdir}/wp-content/cache/cache-enabler/${http_host}${cache_uri}index.html';
 
   # webp html file
   if ($http_accept ~* "image/webp") {
       set $cache_enabler_uri_webp '${custom_subdir}/wp-content/cache/cache-enabler/${http_host}${cache_uri}index-webp.html';
   }

to the below version so Nginx takes over from Wordpress redirects so PHP-FPM request is totally bypassed for query string ?s= requests and specific /search/ location match so that you can do more specific things in future i.e. rate limit within /search/ if needed

Code (Text):

   if ($args ~* s=(.*)) {
     set $cache_uri $request_uri;
     set $check_surl $cache_uri;
     set $cache_uri /search/$1/;
     set $cache_uri_search /search/$1/;
     set $cache_enabler_uri_search '${custom_subdir}/wp-content/cache/cache-enabler/${http_host}${cache_uri_search}index.html';
   }
   location ~ /search/(.*) {
     set $cache_uri $request_uri;
     set $check_surl $cache_uri;
     set $cache_uri_search $request_uri;
     set $cache_enabler_uri_search '${custom_subdir}/wp-content/cache/cache-enabler/${http_host}${check_surl}index.html';
     try_files $cache_enabler_uri_search $cache_enabler_uri_webp $cache_enabler_uri $uri $uri/ $custom_subdir/index.php?$args;
   }
   add_header Check-Uri "$check_surl";
   add_header Set-Uri "$cache_uri";

   # default html file
   set $cache_enabler_uri '${custom_subdir}/wp-content/cache/cache-enabler/${http_host}${cache_uri}index.html';

   # webp html file
   if ($http_accept ~* "image/webp") {
       set $cache_enabler_uri_webp '${custom_subdir}/wp-content/cache/cache-enabler/${http_host}${cache_uri}index-webp.html';
   }

   if (-f $document_root$cache_enabler_uri_search) {
     set $search_exists $cache_enabler_uri_search;
     return 302 https://$host$cache_uri_search;
   }
   if (!-f $document_root$cache_enabler_uri_search) {
     set $search_exists $cache_enabler_uri_search;
   }
   #add_header Check-File "$search_exists";

The results for updated config for cached search requests benchmarks with my forked wrk, wrk-cmm tool now look like

Code (Text):

wrk-cmm -t4 -c50 -d20s --latency --breakout http://cache-enabler.domain.com/search/worldpress+cache/
Running 20s test @ http://cache-enabler.domain.com/search/worldpress+cache/
  4 threads and 50 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency     2.25ms   15.86ms 301.40ms   98.66%
    Connect   203.46us  148.93us 660.00us   87.50%
    TTFB        2.24ms   15.87ms 301.39ms   98.66%
    TTLB       10.40us   37.28us   9.02ms   99.96%
    Req/Sec    28.00k     9.43k   44.87k    66.67%
  Latency Distribution
     50%  311.00us
     75%  534.00us
     90%    1.61ms
     99%   49.76ms
  2226160 requests in 20.07s, 41.85GB read
Requests/sec: 110910.78
Transfer/sec:      2.08GB

Code (Text):

wrk-cmm -t4 -c50 -d20s --latency --breakout http://cache-enabler.domain.com/?s=wordpress+cache
Running 20s test @ http://cache-enabler.domain.com/?s=wordpress+cache
  4 threads and 50 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency   775.44us    1.85ms  29.36ms   91.06%
    Connect   237.04us  131.89us 567.00us   62.75%
    TTFB      771.92us    1.85ms  29.36ms   91.06%
    TTLB        2.09us   32.86us  10.16ms   99.98%
    Req/Sec    50.01k    12.86k   71.21k    68.12%
  Latency Distribution
     50%  151.00us
     75%  308.00us
     90%    2.14ms
     99%    9.24ms
  3985306 requests in 20.08s, 2.36GB read
Requests/sec: 198476.64
Transfer/sec:    120.38MB

FYI, I created a Wordpress Pretty Search Url plugin which can do this functions.php change so you don't need to modify functions.php and link also outlines the whole process more clearly for configuring Centmin Mod LEMP stack auto installed Wordpress with Cache Enabler support for search caching

 

what dirty workaround are you referring to ? all the steps at Wordpress - Caching search results with standard centminmod install ? are required. It won't work without them all AFAIK.

 

that is because instructions at Wordpress - Caching search results with standard centminmod install ? direct that code to be added to the include file i.e /usr/local/nginx/conf/wpincludes/cache-enabler.domain.com/wpcacheenabler_cache-enabler.domain.com.conf and not in your vhost config file's location / at /usr/local/nginx/conf/conf.d/cache-enabler.domain.com.conf (non-https) or /usr/local/nginx/conf/conf.d/cache-enabler.domain.com.ssl.conf (https)

 

FYI, I created a Wordpress Pretty Search Url plugin which can do this functions.php change so you don't need to modify functions.php and link also outlines the whole process more clearly for configuring Centmin Mod LEMP stack auto installed Wordpress with Cache Enabler support for search caching

 

to see if a Wordpress html page or search page is cached, view the source code of the page in your browser and in footer you should see Cache Enabler's comment cache timestamp i.e.

PHP:

<!-- Cache Enabler by KeyCDN @ 21.07.2020 20:47:43 (html gzip) -->

 

Yeah love these kinds of tweaks where only a small amount of effort allows tremendous performance boosts

 

I have never used WPML so wouldn't know where to begin with this search caching tweak. What is the default WPML urls like ? got a wordpress site example you can link to ?

 

ah WPML is a paid plugin it seems Purchase WPML - All Accounts Include One Year of Updates and Support so rules out me being able to test it. But I can see probably the default tweaks for cache search outlined in this thread would need adjusting if the official site's search result example is indicating German search result url as https://wpml.org/de/?s=wordpress. Does that mean the rewritten redirect is https://wpml.org/de/search/wordpress or https://wpml.org/search/de/wordpress ?

@ahmed what is output for wordpress WPML enabled site for command

Code (Text):

curl -IL https://yourdomain.com/de/?s=wordpress

also not sure if your Wordpress site's search forms need adjusting for WPML Search form - WPML ?

edit: looks like WPML list of cache capatible plugins doesn't include Cache Enabler Plugins Compatibility - WPML not sure if list is up to date