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Configure quotas for destinations

JMS quotas are used to control the allotment of system resources available to destinations. For example, you can specify the number of bytes or messages that a destination is allowed to store, or specify whether the quota can be shared be all destinations that refer to it.

Once you configure a quota, you can select it on the Thresholds and Quota page from within a destination resource, such as a queue, topic, distributed queue, distributed topic, or JMS template if you are using templates to configure your destinations.

To configure a quota:

  1. In the Administration Console, navigate to the destination key resource that you want to configure:
  2. On the Configuration page:
    1. In Bytes Maximum, enter the total number of bytes that can be stored in a destination that uses this quota.
    2. In Messages Maximum, enter the total number of messages that can be stored in a destination that uses this quota.
    3. In Policy, select the delivery policy to determines whether to deliver smaller messages before larger ones when a destination has exceeded its message quota. The FIFO (first in, first out) policy strictly enqueues all send requests for the same destination until there is enough space for the first request in line. This prevents smaller messages from being delivered when larger requests are already waiting for space. The Preemptive policy does allow smaller send requests to preempt previous larger ones when there is sufficient space for smaller messages on the destination.
    4. In Shared, specify whether this quota is shared by destinations that refer to it.
    5. Click OK.

    For more information about these fields see Configuration Options.

  3. Save your changes:

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