Hi Johannes,

Thank you for reporting! It seems like allow-local-routees is a bit
confusing. I created a ticket: https://github.com/akka/akka/issues/15412


> How should I properly make sure the cluster aware routers get initialized?
>

Since this kind of router is very dynamic, you cannot reliably detect that
there are available routees at all. At the point where it would return to
you "Hey, I am ready", it might be that all nodes are gone already because
of a network failure for example. You can use the GetRoutees message and
check if there are routees available, but it cannot guarantee that those
routees will be there when you want to use them. This is a general problem
and is not limited to initialization.

There is also a relevant Note in the docs which you should consider:

"The routee actors should be started as early as possible when starting the
actor system, because the router will try to use them as soon as the member
status is changed to 'Up'. If it is not available at that point it will be
removed from the router and it will only re-try when the cluster members
are changed"

-Endre


> I'm attaching a test class that I can reproduce my case with. I'm using
> Akka 2.3.0.
>
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