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=doc #15160 Minor spelling, wording and grammar fixes.

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Evan Tsue 2014-05-10 16:49:09 -04:00
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12
akka-docs/rst/scala/cluster-usage.rst
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@ -398,23 +398,23 @@ Cluster Aware Routers
All :ref:`routers <routing-scala>` can be made aware of member nodes in the cluster, i.e.
deploying new routees or looking up routees on nodes in the cluster.
When a node becomes unreachable or leaves the cluster the routees of that node are
automatically unregistered from the router. When new nodes join the cluster additional
automatically unregistered from the router. When new nodes join the cluster, additional
routees are added to the router, according to the configuration. Routees are also added
when a node becomes reachable again, after having been unreachable.
There are two distinct types of routers.
* **Group - router that sends messages to the specified path using actor selection**
The routees can be shared between routers running on different nodes in the cluster.
The routees can be shared among routers running on different nodes in the cluster.
One example of a use case for this type of router is a service running on some backend
nodes in the cluster and used by routers running on front-end nodes in the cluster.
* **Pool - router that creates routees as child actors and deploys them on remote nodes.**
Each router will have its own routee instances. For example, if you start a router
on 3 nodes in a 10 nodes cluster you will have 30 routee actors in total if the router is
configured to use one inctance per node. The routees created by the different routers
will not be shared between the routers. One example of a use case for this type of router
is a single master that coordinate jobs and delegates the actual work to routees running
on 3 nodes in a 10-node cluster, you will have 30 routees in total if the router is
configured to use one instance per node. The routees created by the different routers
will not be shared among the routers. One example of a use case for this type of router
is a single master that coordinates jobs and delegates the actual work to routees running
on other nodes in the cluster.
Router with Group of Routees