Configure connection factory flow control

After you configure a connection factory, you can define flow control parameters. Flow control allows you to tell a JMS server or destination to slow down message producers when it determines that it is becoming overloaded. Specifically, when a JMS server or destination exceeds its specified bytes or messages thresholds, it instructs producers to limit their message flow (messages per second).

To configure message flow control on a connection factory:

If you have not already done so, in the Change Center of the Administration Console, click Lock & Edit (see Use the Change Center).
In the Administration Console, navigate to the connection factory resource that you want to configure:
- Navigate to JMS Resources in System Modules
- Navigate to JMS resources in an application module
Click the Configuration > Flow Control tab.
On the Flow Control page:
1. In Flow Control Enabled, specify whether a producer can be flow controlled by the JMS server. If enabled, the associated message producers will be slowed down if the JMS server reaches its upper bytes and/or messages threshold settings.
2. In Flow Maximum, specify the maximum number of messages per second for a producer that is experiencing a threshold condition. When a producer is flow controlled it will never be allowed to go faster than the Flow Maximum messages per second setting.
3. In Flow Minimum, specify the minimum number of messages per second for a producer that is experiencing a threshold condition. This is the lower boundary of a producer's flow limit. That is, WebLogic JMS will not further slow down a producer whose message flow limit is at its Flow Minimum.
4. In Flow Interval, specify an adjustment period of time, defined in seconds, when a producer adjusts its flow from the Flow Maximum number of messages to the Flow Minimum amount, or vice versa.
5. In Flow Steps, specify the number of steps used when a producer is adjusting its flow from the Flow Minimum amount of messages to the Flow Maximum amount, or vice versa.
6. In Send Timeout, specify the maximum number of milliseconds that a producer will wait for sufficient space (quota) on a JMS server or destination to accommodate the message being sent.
For more information about these fields, see Configuration Options.
Save your changes:
- Save Changes to JMS Resources in System Modules
- Save changes to JMS resources in an application module
To activate these changes, in the Change Center of the Administration Console, click Activate Changes.
Not all changes take effect immediately—some require a restart (see Use the Change Center).