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litespeed_wiki:cache:lscdrupal [2018/03/15 20:08] Jackson Zhang [Prerequisites] |
litespeed_wiki:cache:lscdrupal [2018/12/11 14:34] Jackson Zhang |
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| ====== LiteSpeed Cache for Drupal 8 ====== | ====== LiteSpeed Cache for Drupal 8 ====== | ||
| + | |||
| + | **NOTE: This plugin is only for Drupal 8. If you are running an earlier version of Drupal, you will need to use [[litespeed_wiki:cache:no-plugin-drupal|LSCache via rewrite rules]].** | ||
| Drupal 8 is significantly changed from Drupal 7. The developers switched from procedural programming to object-oriented programming. Drupal 8 has a built-in page cache (for static content) and a dynamic page cache for logged in users. The latter basically works as a reverse proxy written in PHP. The built-in proxy is good if you have no other options, however, with the LiteSpeed Cache plugin you will see a great improvement in performance for your Drupal 8 site. | Drupal 8 is significantly changed from Drupal 7. The developers switched from procedural programming to object-oriented programming. Drupal 8 has a built-in page cache (for static content) and a dynamic page cache for logged in users. The latter basically works as a reverse proxy written in PHP. The built-in proxy is good if you have no other options, however, with the LiteSpeed Cache plugin you will see a great improvement in performance for your Drupal 8 site. | ||
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| Download the LiteSpeed Cache Module to your local computer from [[https://github.com/litespeedtech/lscache-drupal/archive/master.zip|our GitHub repository]]. | Download the LiteSpeed Cache Module to your local computer from [[https://github.com/litespeedtech/lscache-drupal/archive/master.zip|our GitHub repository]]. | ||
| - | =====Enable LiteSpeedCache using rewrite rules===== | + | =====Enable LiteSpeedCache lookup by placing the following to .htaccess at Doc_Root ===== |
| + | |||
| + | Place the following into .htaccess: | ||
| <code> | <code> | ||
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| * Check the checkbox next to ''LiteSpeed Cache''. | * Check the checkbox next to ''LiteSpeed Cache''. | ||
| * Click **Install**. | * Click **Install**. | ||
| + | |||
| + | ===== Verify/Test if LiteSpeed cache is working or not ===== | ||
| + | You will need to check the response header "X-LiteSpeed-Cache: hit" from browser developer tools to ensure LiteSpeed cache is working. | ||
| + | |||
| + | You can verify a page is being served from LiteSpeed cache through the following steps: | ||
| + | |||
| + | - Open the Chrome/Firefox developer tools on a non-logged-in browser and navigate to your site. Open the Network tab. | ||
| + | - Refresh the page. | ||
| + | - Click the first resource (this should be an HTML file and the resource's headers should appear) and ensure you can see "X-LiteSpeed-Cache: hit" | ||
| + | - If you see "X-LiteSpeed-Cache: miss", refresh the page and check the header again. | ||
| + | - If you can not see "X-LiteSpeed-Cache: hit" header and it means LiteSpeed is not working yet/not enable properly yet. Please go back to the above steps to see if any steps missed. | ||
| =====Configuration===== | =====Configuration===== | ||
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| + | ===== Troubleshooting ===== | ||
| + | |||
| + | ==== Installation Errors ==== | ||
| + | |||
| + | === 500 error === | ||
| + | |||
| + | You may experience a 500 error during installation if: | ||
| + | * The PHP version is less than 7.1 | ||
| + | * PHP module packages are missing | ||
| + | |||
| + | Check your PHP version. If it's lower than PHP 7.1, installation will fail. | ||
| + | |||
| + | If it's PHP 7.1 and above, there may be some missing PHP modules. Check the server error log. | ||
| + | |||
| + | If you see something like this: | ||
| + | |||
| + | <code> | ||
| + | [STDERR] Error: Class 'ZipArchive' not found in /var/www/html/core/lib/Drupal/Core/Archiver/Zip.php on line 30 #0 /var/www/html/core/lib/Drupal/Core/Archiver/ArchiverManager.php(42): Drupal\Core\Archiver\Zip->__construct('/tmp/lscache-dr...') | ||
| + | </code> | ||
| + | install the ''php-pecl-zip'' package, and that should fix the problem. | ||