Hi everyone,
Using Akka 2.3.6, I would like to create a fixed size actor pool which keeps a constant number of actors, spawning new routees to replace any routee which stops or dies. I would also like to loose as few messages as possible. I experimented with a fixed size pool but ultimately I would prefer an elastic pool able to spawn despawn actors depending on request pressure. A simple RoundRobinPool or even a SmallestMailboxPool can easily be made to resize in the way I want, but any message already routed to the actor when it stops will be lost and sent to deadletters. A collaborative mailbox sounds as offered by the BalancingPool is very appealing to avoid having to implement a handler for the deadletters. However, according to the code: "Resizer cannot be used together with BalancingPool". Sifting through the mailing list I found multiple recommendations to use a RoundRobinPool with a BalancingDispatcher, however when experimenting with it I encountered the following deprecation warning : Caused by: java.lang.IllegalArgumentException: BalancingDispatcher is > deprecated, use a BalancingPool instead. During a migration period you can > still use BalancingDispatcher by specifying the full class name: > akka.dispatch.BalancingDispatcherConfigurator While I was able to make the RoundRobinPool work by specifying akka.dispatch.BalancingDispatcherConfigurator, I wasn't able to find the answer to the following questions in either the mailing list or the documentation : - Why can't resizers be use with BalancingPool ? - Why the deprecation ? - Is my setup actually subtly incorrect even though it seems to behave correctly in test runs ? - Is there an alternative setup offering the same benefits which I have missed ? The routees are very heavily IO bound, I don't really care about the performance offered by the routers, but I would much prefer not to have to reimplement the pool tracking logic myself. Thank you ! Jean -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
