Published: 27 July 2014

Content caching is used in many parts of Joomla CMS for speed-up of several tasks. For long-term good operation of page cache is necessary to take care at least for two processes :

  • cache cleaning
  • content recaching

Page cache cleaning

Cached items have expiration time. After this time the item is no more valid but usually remains in storage. For file cache is important to perform regulary cleaninig (garbage collection) to prevent storage overflow. In JotCache are available two different techniques for cache cleaning :

  • autoclean - set as parameters in JotCache plugin which performs cleaning inside some visitor requests (it takes time max. 500 msec. in one request). Such method can be acceptable on sites with low request rate.
  • clean cron job - using special PHP script started from web server cron with PHP CLI (Command Line Interface). Cron initiated cleaning is suitable for medium and large (heavy loaded) web sites. Problem can occur when PHP CLI is not installed on server of hosting company.
Published: 25 July 2014

JotEasyCron plugin is additional plugin to JotCache extension which provides convinient solution for external cron jobs provided by EasyCron service.

JotEasyCron plugin is close tight to other parts of JotCache especially :

  • JotCache component - which includes recacherunner with option to log recache process
  • Jotcacheplugins-Recache plugin - which performs dedicated recache processing
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