Work with Ucommerce Caching

Ucommerce uses NHibernate and NHibernate Cache.

NHibernate has a 1st level cache per session (always in memory) and a 2nd level cache per factory (provider based).

Ucommerce uses the Nibernate 2nd level Cache for some entities, look at the list below. Ucommerce uses the NHibernate Query cache for some quries, look at the list below.

By default, Ucommerce uses NHibernate SysCache, but this can be changed to another provider if needed. Since SysCache uses the ASP.NET Cache, changing the ASP.NET Cache Provider is also a possibility to change to another cache store.

Ucommerce has 5 distinct cache regions defined.

CatalogFoundation
MarketingFoundation
TransactionFoundation
SecurityFoundation
Backend

How to clear the cache

Clearing the whole cache can be done with the ICacheProvider

    
    public interface ICacheProvider
    	{
    		void ClearCache();
    	}

How to set the timeout for the cache regions

In web.config the timeout of the different regions can be set.

    
      <syscache>
        <!-- Cache catalog objects for 60 mins before refreshing -->
        <cache region="CatalogFoundation" expiration="3600" priority="5"/>
        <cache region="MarketingFoundation" expiration="3600" priority="5"/>
        <cache region="SecurityFoundation" expiration="3600" priority="5"/>
        <cache region="Backend" expiration="3600" priority="5"/>
      </syscache>

How to turn off the cache

The NHibernate Cache can be disabled in web.config

    
      <commerce>
        <runtimeConfiguration enableCache="false"
         ...
      </commerce>

This should only be used for troubleshooting and can have severe impact on performance.

What entities do Ucommerce cache in the 2nd level cache?

Note! No Order entities are cached.

CatalogFoundation

Category
CategoryProductRelation
CategoryProperty
Currency
DataTypeEnumDescription
DataTypeEnum
DataType
DefinitionField
DefinitionMap
DefinitionTypeDescription
DefinitionType
PriceGroup
ProductCatalogGroup
ProductCatalog
ProductDefinitionFieldDescription
ProductDefinition
ProductDescription
ProductDescriptionProperty
Product
ProductProperty
ProductRelation
ProductRelationType
ProductReviewComment
ProductReview
ProductReviewStatus

MarketingFoundation

CampaignItem
CampaignItemProperty
Campaign
Target

TransactionFoundation

Country
DefinitionFieldDescription
EmailContent
EmailParameter
EmailProfileInformation
EmailProfile
EmailType
OrderStatus
PaymentMethodDescription
PaymentMethod
PaymentStatus
ShippingMethodDescription
ShippingMethod
ShippingMethodPrice

SecurityFoundation

Role
UserGroup
User

Backend

AdminPage
AdminTab
EntityUiDescription
EntityUi

What Queries do Ucommerce cache in the Query Cache?

Note! No Order queries are cached.