Web content cache configuration

You can tailor the caching behavior of your web content environment by changing configuration settings such as the default cache type and expire settings.

You define and manage web content cache options in the WCM WCMConfigService service by using the WebSphere® Integrated Solutions Console.

Go to Resources > Resource Environment > Resource Environment Providers > WCM WCMConfigService > Custom Properties.

Setting the default web content cache type

The default web content caching environment for your web content server is specified by the following properties:
  • connect.businesslogic.defaultcache
  • connect.moduleconfig.ajpe.contentcache.defaultcontentcache
Table 1. Caching parameters
Parameter defaultcache value defaultcontentcache value
No caching: false None
Basic cache: true Not specified
Site caching: false Site
Session caching: false Session
User caching: false User
Secured caching: false Secured
Personalized caching: false Personalized

Further default web content cache parameters

Web content cache configuration settings are specified by the following properties in the WCM WCMConfigService service.

Table 2. Cache properties per cache type
Cache Type Properties
Basic cache: connect.businesslogic.defaultcacheexpires

connect.businesslogic.defaultcache

Advanced cache: All connect.moduleconfig.ajpe.contentcache.defaultcontentcache

connect.moduleconfig.ajpe.contentcache.contentcacheexpires

Advanced cache: Session cache only connect.sessioncacheconfig.memcachesize
Table 3. Cache properties details
Cache Property Details
contentcacheexpires This property sets the default expiry for all advanced caches. It can be either a relative period or an absolute date and time.
defaultcache If true, basic caching is enabled. If false or missing, advanced caching is enabled.
defaultcacheexpires This property sets the default expiry for the basic cache. It can be either a relative period or an absolute date and time.
defaultcontentcache If the advanced cache is enabled, the default advanced cache is set here.
resourceserver.browserCacheMaxAge This property is used to define the maximum time that an item is stored in a web browser cache.
resourceserver.maxCacheObjectSize This property is used to define the maximum size of objects that can be cached in kilobytes. By default this property is set to 300.
resourceserver.cacheExpiryDate Specifies the expiry date of resources cached by the resource server module. Default value: REL 1M

Additional Cache Keys

These additional cache keys are used to customize and optimize both basic and advanced caching.

Table 4. Additional Keys
Key Purpose Prerequisites
deviceclass Enable caching based on device type. 8.5 CF04 (PI27550)
locale Enable caching based on browser locale. 8.5
portalcontext Enable caching based on portal context. 8.5 CF02 (PI20951)
portalmapping Enable caching based on portal mapping. 8.5 CF02 (PI20951)
portletcontext Enable caching based on portlet context. 8.5 CF02 (PI20951)
portletid Enable caching based on portlet instance. 8.5 CF CF10
To configure these additional cache keys, add the required caching keys to the value of the property, using commas to separate each value:
Basic Caching:
connect.businesslogic.cache.additionalcachekeys.requestattributes
Advanced Caching:
connect.moduleconfig.ajpe.contentcache.additionalcachekeys.requestattributes

Cache expire time formats

When you use the cache expire settings that are listed in Table 3, you can specify either a relative time, or absolute time:
  • REL {integer-value}{units}
  • ABS {date-format-string}
{units} =
  • d|D for days
  • m|M for months
  • s|S for seconds
  • h|H for hours
{date-format-string} =
  • Mon, 06 Nov 2000 09:00:00 GMT
  • Monday, 06-Nov-00 09:00:00 GMT
  • Mon Nov 6 09:00:00 2000
  • 6 Nov 2000 9:00 AM
Note: The last two formats assume GMT.
Examples:
  • contentcacheexpires="REL 300S"
  • contentcacheexpires="ABS Mon, 06 Nov 2000 09:00:00 GMT"