Message Throttling: Configuring and Using

Throttling allows you to set the maximum number of concurrent messages that are processed by a particular endpoint. Increased message load and large message payloads can cause memory usage spikes that can decrease performance. Throttling limits resource consumption so that consistent performance is maintained.

The HTTP Binding Component, using functionality provided by the Grizzly HTTP Web Server, manages the flow of messages by evaluating endpoints to determine when it is necessary to suspend requests and when to resume processing as usual.

For more information in regard to HTTP BC and Throttling, see HTTP BC Throttling.

Configuring the HTTP Binding Component Endpoint for Throttling

For the HTTP Binding Component, throttling is a QOS feature configured from the CASA Editor.

To configure Throttling for an HTTP/SOAP WSDL port

1. From the NetBeans IDE Projects window, right-click the Service Assembly node under your composite application, and select Edit from the popup menu.

   The CASA Editor opens containing your composite application.

   

2. In the CASA Editor, click the QOS icon located on the link between your JBI Module and the WSDL port you want to configure.

   The QOS Properties Editor appears.

3. In the QOS Properties Editor, click the property field for maximumConcurrencyLimit under ThrottlingExtension, and enter an integer for the maximum number of concurrent messages allowed for this endpoint.

   

4. Click Close.

   The appropriate throttling configuration for the connection is generated in the project's jbi.xml file, when the service assembly is built.