Configuring Drupal cache settings for Varnish

Configuring Drupal cache settings for Varnish

1. Access the Performance page at /admin/config/development/performance.

2. In the Browser and Proxy cache maximum age field, select the value that you want to assign to the max-age header.

   Note

   Click Clear all caches to clear all caches that belong to your Drupal application.

    

   

To configure the current Drupal version to use BigPipe rendering, see Enabling BigPipe rendering on Cloud Platform.

Cache settings in Drupal 7

On the Performance page at Configuration > Performance, set values for the following items:

• Select the Cache pages for anonymous users checkbox.
• Use the Minimum cache lifetime field with caution. The minimum cache lifetime prevents Drupal from clearing page and block caches for a set period of time after you change the content of nodes or blocks. This setting can cause unexpected behavior when editing content or using an external cache such as Varnish. If you are unsure, leave the minimum cache lifetime set to 0.
• Use the Expiration of cached pages field to set the maximum time for which a page can stay in the Varnish cache. By setting this value to <none>, the max-age header Drupal sends to Varnish is 0, which means the page will not be cached. A reasonable expiration setting is from 6 hours to 12 hours.

To change the configuration:

1. Access the Performance page at /admin/config/development/performance.

2. In the Browser and Proxy cache maximum age field, select the value that you want to assign to the max-age header.

   Note

   Click Clear all caches to clear all caches that belong to your Drupal application.

    

   

To configure the current Drupal version to use BigPipe rendering, see Enabling BigPipe rendering on Cloud Platform.

Cache settings in Drupal 7

On the Performance page at Configuration > Performance, set values for the following items:

• Select the Cache pages for anonymous users checkbox.
• Use the Minimum cache lifetime field with caution. The minimum cache lifetime prevents Drupal from clearing page and block caches for a set period of time after you change the content of nodes or blocks. This setting can cause unexpected behavior when editing content or using an external cache such as Varnish. If you are unsure, leave the minimum cache lifetime set to 0.
• Use the Expiration of cached pages field to set the maximum time for which a page can stay in the Varnish cache. By setting this value to <none>, the max-age header Drupal sends to Varnish is 0, which means the page will not be cached. A reasonable expiration setting is from 6 hours to 12 hours.