Tuning connection pools

Using connection pools helps to both alleviate connection management overhead and decrease development tasks for data access. Each time an application attempts to access a backend store (such as a database), it requires resources to create, maintain, and release a connection to that datastore. To mitigate the strain this process can place on overall application resources, the application server enables administrators to establish a pool of backend connections that applications can share on an application server. Connection pooling spreads the connection overhead across several user requests, thereby conserving application resources for future requests.

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Connection pooling can improve the response time of any application that requires connections, especially Web-based applications. When you make a request over the web to a resource, the resource accesses a data source. Because you connect and disconnect frequently with applications on the Internet, the application requests for data access can surge to considerable volume. Consequently, the total overhead for a datastore can quickly become high for Web-based applications, causing performance to deteriorate. When connection pooling capabilities are used, however, web applications can realize performance improvements of up to 20 times the normal results.

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Last updatedLast updated: Sep 19, 2011 6:15:55 PM CDT
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