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=clu #13802 Introduce max-total-nr-of-instances for cluster aware routers

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Patrik Nordwall 2015-08-20 15:13:35 +02:00
parent 12bee9433e
commit bc13e1b4c2
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15
akka-docs/rst/project/migration-guide-2.3.x-2.4.x.rst
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@ -155,6 +155,21 @@ In order to make cluster routers smarter about when they can start local routees
In case you have implemented a custom Group you will have to update the method's signature,
however the implementation can remain the same if you don't need to rely on an ActorSystem in your logic.
Cluster aware router max-total-nr-of-instances
==============================================
In 2.3.x the deployment configuration property ``nr-of-instances`` was used for
cluster aware routers to specify total number of routees in the cluster.
This was confusing, especially since the default value is 1.
In 2.4.x there is a new deployement property ``cluster.max-total-nr-of-instances`` that
defines total number of routees in the cluster. By default ``max-total-nr-of-instances``
is set to a high value (10000) that will result in new routees added to the router when nodes join the cluster.
Set it to a lower value if you want to limit total number of routees.
For backwards compatibility reasons ``nr-of-instances`` is still used if defined by user,
i.e. if defined it takes precedence over ``max-total-nr-of-instances``.
Logger names use full class name
================================
Previously, few places in akka used "simple" logger names, such as ``Cluster`` or ``Remoting``.