Network Deployment (Distributed operating systems), v8.0 > Reference > Tune tips


Connection pool custom properties

We can use the custom properties page to define the following connection pool custom properties:



defaultConnectionTypeOverride

We can use the defaultConnectionTypeOverride connection pool custom property for a particular connection factory or data source to control connection sharing.

The defaultConnectionTypeOverride property changes the default sharing value for a connection pool. This property enables you to control connection sharing for direct look-ups. If resource references are configured for a data source or connection factory they take precedence over this property and the resource reference settings are used. For example, if an application is doing direct look-ups, and you do not want unshared connections, set this property to unshared.

Data Type String
Value unshared, shared


globalConnectionTypeOverride

We can use the globalConnectionTypeOverride connection pool custom property to globally control connection sharing for a particular connection factory or data source.

The value specified for the globalConnectionTypeOverride custom property takes precedence over all of the other connection sharing settings. For example, if you set this property to unshared, all connection requests are unshared for both direct look-ups and resource reference lookups.

This property provides you with a quick way to test the consequences of moving all connections for a particular data source or connection factory to unshared or shared without changing the resource reference settings.

If you specify values for both the defaultConnectionTypeOverride and the globalConnectionTypeOverride properties, only the value specified for the globalConnectionTypeOverride property is used to determine connection sharing type.

Data Type String
Value unshared, shared

For more information on how these properties are used, see the topic, Tuning connection pools.
Tune connection pools

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