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--- litespeed_wiki:cache:no-plugin-joomla [2017/03/30 16:33]
Jackson Zhang [Adding a cron job to delete outdated cache files]
+++ litespeed_wiki:cache:no-plugin-joomla [2020/09/17 19:49] (current)
Lisa Clarke Redirect to new Documentation Site
@@ Line 1: / Line 1: @@
-====== LSCache + Joomla Configuration ======
+~~REDIRECT>https://docs-stage.ls.com/20200902-lscache/lscache/noplugin/settings/~~
-LSCache, similar to Varnish cache, is a simpler and more efficient page caching solution built-in to LiteSpeed Web Server. When used in conjunction with Joomla, you can expect significant performance gains with a quick and easy setup. Cache management is also made significantly easier and more flexible. While Litespeed cache plugin for Joomla is still in development, user has the ability to use rewrite rules to customize LSCache's behavior.
-Below are some recommended configurations to enable LSCache and get it working with your Joomla site(s).
-===== Configure Server and Virtual Host Level Cache Root and Cache policy =====
-Server/VirtualHost level cache storage needs to be configured properly for your environment. Select your server setup from the **Web Server Configuration** section of our **[[litespeed_wiki:cache:common_installation#web_server_configuration|LiteSpeed Cache Installation Guide]]** and follow the instructions in the **Set Server/VirtualHost Level Cache Root and cache policy** section of your respective guide.
-===== Website Level Settings =====
-In your .htaccess file, located in the document root of your website, add rewrite rules right before the line:
-  ## Begin - Joomla! core SEF Section.
-==== Case 1: Cache all URLs excluing /administrator URLs for 2 mins:====
-  ########## Begin - Litespeed cache
-  <IfModule LiteSpeed>
-    RewriteEngine On
-    CacheDisable public /
-    RewriteCond %{REQUEST_METHOD} ^HEAD|GET$
-    RewriteCond %{ORG_REQ_URI} !/administrator
-    RewriteRule .* - [E=Cache-Control:max-age=120]
-  </IfModule>
-  ########## End - Litespeed cache
-**Note:**  "CacheDisable public /" directive is optional. It is to prevent any global cache enabling mistake. Normally you should check server global settings to avoid any global cache enabling.
-Do not use "CacheEnable public /" here since it will enable cache for all URLs of this virtual host, instead, rewrite rules will enable the cache for you.
-==== Case 2: Cache all URLs but specify non cache URLs  ====
-  ########## Begin - Litespeed cache
-  <IfModule LiteSpeed>
-    RewriteEngine On
-    CacheEnable public /
-    RewriteCond %{REQUEST_METHOD} ^HEAD|GET$
-    RewriteCond %{ORG_REQ_URI} /administrator/
-    RewriteRule .* - [E=Cache-Control:no-cache]
-  </IfModule>
-  ########## End - Litespeed cache
-==== Case 3: Specify which domain to be cached, which domain not  ====
-  ########## Begin - Litespeed cache
-  <IfModule LiteSpeed>
-   RewriteEngine On
-   RewriteCond %{REQUEST_METHOD} ^HEAD|GET$
-   RewriteCond %{HTTP_HOST} ^domain.com [NC] [OR]
-   RewriteCond %{HTTP_HOST} ^www.domain.com [NC]
-   RewriteCond %{ORG_REQ_URI} !/administrator
-   RewriteRule .* - [E=Cache-Control:max-age=120]
-  </IfModule>
-**Note:** We recommend using a different domain for your backend so that you can add/edit/preview a website's content through the admin domain without worrying about these changes being cached and seen by visitors. For example: admin.domain.com for admin user, domain.com, and www.domain.com for general public. You can specify which domain to be cached, such as domain.com and www.domain.com, then admin.domain.com won't be cached.
-===== Test: Verify if cahce setup is correct =====
- You should see "X-LiteSpeed-Cache: hit" in your URL. If you see "X-LiteSpeed-Cache: miss", reload the page again.
-===== Adding a cron job to delete outdated cache files =====
-Set cron job to clear out old cache files that are past the set **Time To Live (TTL)**.
-To do this, you should run the crontab either by root user or shared hosting account user. Shared hosting account user can manage cache by himself.
-<code>crontab -e</code>
-Normally **/virtualhost/cache/root/directory/** is at **/home/$USER/lscache** for shared hosting user or simply as **/tmp/diskspace** for dedicated server.
-<code>*/10 * * * * root find /virtualhost/cache/root/directory/ -type f -mmin +8 -delete 2>/dev/null</code>
-**Note1:** This cron job deletes cached files that are more than 8 minutes old every 10 minutes. Since the cache TTL is set at 120 seconds (2 minutes), it is safe to delete these files that are way passed TTL.
-**Note2:** This is optional since lsws will delete expried cache automatically. This cron job can ensure cache work as expected. For example, due to some wrong configurations, some pages may have been set very long expiration time. The cron job above will ensure old cache deleted.