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=doc set up mailbox for BalancingPool documented #13961

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ivan-lorenz 2016-07-22 16:04:11 +02:00 • committed by Johan Andrén
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akka-docs/rst/java/routing.rst
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@ -311,6 +311,20 @@ with a ``thread-pool-executor`` hinting the number of allocated threads explicit
.. includecode:: ../scala/code/docs/routing/RouterDocSpec.scala#config-balancing-pool3
It is also possible to change the ``mailbox`` used by the balancing dispatcher for
scenarios where the default unbounded mailbox is not well suited. An example of such
a scenario could arise whether there exists the need to manage priority for each message.
You can then implement a priority mailbox and configure your dispatcher:
.. includecode:: ../scala/code/docs/routing/RouterDocSpec.scala#config-balancing-pool4
.. note::
Bear in mind that ``BalancingDispatcher`` requires a message queue that must be thread-safe for
multiple concurrent consumers. So it is mandatory for the message queue backing a custom mailbox
for this kind of dispatcher to implement akka.dispatch.MultipleConsumerSemantics. See details
on how to implement your custom mailbox in :ref:`mailboxes-java`.
There is no Group variant of the BalancingPool.
SmallestMailboxPool