Upgrade Your Drupal Skills
We trained 1,000+ Drupal Developers over the last decade.
See Advanced Courses NAH, I know EnoughRemember that the CAPTCHA module disables page caching
By design, the Drupal CAPTCHA module disables page caching for pages it is enabled on.
So if you enable CAPTCHA for user login and/or registration forms, those pages will not be cached. This is often acceptable.
However, if you enable CAPTCHA for comments, and have the comment form visible at the bottom of each node, then a big portion of your site's pages will not be cached in the page cache at all.
This means that every node will be treated as if the user is logged in, even though it is anonymous visitors who are hitting. This incurs a lot of PHP execution and SQL queries to the database.
So, even though you are using memcache for your page cache, the site would probably suffer.
About Drupal Sun
Drupal Sun is an Evolving Web project. It allows you to:
- Do full-text search on all the articles in Drupal Planet (thanks to Apache Solr)
- Facet based on tags, author, or feed
- Flip through articles quickly (with j/k or arrow keys) to find what you're interested in
- View the entire article text inline, or in the context of the site where it was created
See the blog post at Evolving Web
