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Cache Sniper for Nginx

开发者 ekaterir
robertchen617
djrusk
更新时间 2018年9月27日 23:11
PHP版本: 4.6 及以上
WordPress版本: 4.9.8
版权: GPLv2 or later
版权网址: 版权信息

标签

caching cache comments php homepage flush home server apache aws amazon web services purge individual fastcgi nginx invalidation fpm php-fpm snipe

下载

1.0.1 1.0.2 1.0.3 1.0.3.1 1.0.4 1.0.4.1 1.0.4.2

详情介绍:

Nginx has a built-in FastCGI cache, which acts as a reverse proxy cache at the webserver layer. The Cache Sniper for Nginx WordPress plugin lets you purge this cache from within WordPress. Here are some key features: For more info on using this plugin with a pre-configured Nginx stack running in AWS, follow this link.

安装:

  1. Upload the plugin files to the /wp-content/plugins/snipe-nginx-cache directory, or install the plugin through the WordPress plugins screen directly.
  2. Activate the plugin through the Plugins screen in WordPress
  3. Go to Tools -> Nginx Cache Sniper to configure the plugin
Usage
  1. Clear the entire cache by going to the Nginx Cache Sniper drop-down in the top Menu bar, and click Clear entire cache.
  2. Clear the homepage cache by going to the Nginx Cache Sniper drop-down in the top Menu bar, and click Clear homepage cache.
  3. To clear the cache for an individual Post (or Page), click on Clear cache for this page, either on the All Posts or Post detail pages.
  4. When configured to do so, you can purge the cache for a Post (or Page) by updating it.
  5. When configured to do so, you can purge the cache for a Post (or Page) where a comment was created/updated/deleted.
Configuration Settings Cache Sniper for Nginx comes with the following settings:
  1. Cache Path: This is the filesystem path where the FastCGI cache is stored on-disk. Set this to the value you used for fastcgi_cache_path from your Nginx configuration. Note: Nginx needs read/write access to this location.
  2. Cache Levels: This sets up a directory hierarchy under the cache path. Set this to the value you used for levels from your Nginx configuration. For example: fastcgi_cache_path /var/lib/nginx/cache levels=1:2 keys_zone=CACHE:100m;
  3. Automatically clear page cache on content update: Check this box to automatically purge the cache when a page is updated. This only purges the updated page -- it does not clear the entire cache.
  4. Automatically clear page cache on comment: Check this box to automatically purge the cache when a comment is created/updated/deleted. This only purges the cache of the page where the comment resides -- it does not clear the entire cache.
  5. Automatically clear homepage cache on content update: Check this box to automatically purge the homepage cache when a page is updated. This only purges the homepage -- it does not clear the entire cache or the cache of the page where the content resides.
  6. Automatically clear homepage cache on comment: Check this box to automatically purge the the homepage cache when a comment is created/updated/deleted. This only purges the cache of the homepage -- it does not clear the entire cache or the cache of the page where the content resides.
Configuration via WP CLI For those scripting out infrastructure, Cache Sniper for Nginx can be configured via WP CLI:
  1. wp plugin activate cache-sniper-nginx
  2. wp option add nginx_cache_sniper_path '/var/lib/nginx/cache'
  3. wp option add nginx_cache_sniper_levels '1:2'
  4. wp option add nginx_cache_sniper_auto_clear 1
  5. wp option add nginx_cache_sniper_auto_clear_comments 1
  6. wp option add nginx_cache_sniper_auto_clear_home_page 1
  7. wp option add nginx_cache_sniper_auto_clear_home_page_comments 1
For instructions on setting up FastCGI caching with Nginx, refer to this Digital Ocean blog post. Server-side configuration There are a few things that need to be configured on the server in order for this plugin to work.
  1. Be sure to set $scheme$request_method$host$request_uri for fastcgi_cache_key. For example: fastcgi_cache_key "$scheme$request_method$host$request_uri";
  2. The Linux account running Nginx needs read-write permissions to the cache path on disk.

屏幕截图:

  • screenshot-1.png

升级注意事项:

1.0 1.0.1 Adds page cache invalidation on comment create/update/delete. 1.0.2 Fixes a bug that caused cache_actions.js file not to load. 1.0.3 Adds cache levels configuration. 1.0.3.1 Clearing entire cache removes contents of the fastcgi_cache_path folder without deleting the folder itself. 1.0.4 Adds ability to clear homepage cache. 1.0.4.1 Fixes a bug that caused wp_insert_comment to fail. 1.0.4.2 Fixed a bug that caused errors on post/page delete.

常见问题:

Do I need to recompile Nginx to purge the cache?

No. Cache Sniper for Nginx works without relying on any custom Nginx modules. This means you can easily keep Nginx updated with your normal package manager.

更新日志:

1.0.4.2 1.0.4.1 1.0.4 1.0.3.1 1.0.3 1.0.2 1.0.1 1.0.0