Hello Patrik,

Any thoughts on this. We can setup a chat some time if that helps.

Mainak

On Thu, Jun 8, 2017 at 1:12 PM, Mainak Ghosh <famousmai...@gmail.com> wrote:

> Hello Patrik,
>
> I am trying to explore the tradeoffs of instantiating a new routee when
> there is overhead of state reconciliation. In my application, routees
> themselves can be CPU intensive, and as a result distributing the load
> across multiple machine improves performance (especially when we have a
> lower core count machines). Additionally, we are exploring the impact of
> controlled locality for remote actors.
>
> Thanks,
> Mainak
>
>
> On Thu, Jun 8, 2017 at 2:59 AM, Patrik Nordwall <patrik.nordw...@gmail.com
> > wrote:
>
>> I think resizer is only for local router. Also, I don't understand why
>> adding more actors should improve performance if the bottleneck is outside
>> of these actors. Have you tried by just using the local replicator from
>> each node without any routers. If not, please explain why that is not a
>> good fit for your application.
>>
>> /Patrik
>>
>> ons 7 juni 2017 kl. 17:20 skrev Mainak Ghosh <famousmai...@gmail.com>:
>>
>>> Hello Patrik and Johan,
>>>
>>> Thanks for your reply. The goal of my work is to test the performance of
>>> resizer block in a cluster aware situation where the routees are
>>> replicators who are trying to reconcile state among themselves based on
>>> application's consistency requirement. Can you please shed some light on
>>> whether I can do this in Akka?
>>>
>>> Here is what I have done so far. Resizers do not work with group
>>> routers. So I am using pool routers for this. I am
>>> using StatsSampleSingleMasterSpec as an example of pool based cluster
>>> aware router. I have hooked up the ReplicatedCache actor as a routee. Now I
>>> wanted to add the resizer block and it threw me an error that resizer block
>>> cannot be used along side cluster block. Can I do it programmatically or is
>>> this a limitation?
>>>
>>> Mainak
>>>
>>> On Wed, Jun 7, 2017 at 6:40 AM, Patrik Nordwall <
>>> patrik.nordw...@gmail.com> wrote:
>>>
>>>> Note that the intention is to use the local `Replicator` so there is
>>>> not much point in delegating the message with a router to remote node,
>>>> unless you use nodes with different roles, such as "frontend" and "backend"
>>>> and only run distributed data on the "backend" nodes and want to send the
>>>> messages from the "frontend" to the "backend" with the routers. That is
>>>> probably what you are trying to do and then you must have serialization for
>>>> that message.
>>>>
>>>> /Patrik
>>>>
>>>> On Wed, Jun 7, 2017 at 1:33 PM, Akka Team <akka.offic...@gmail.com>
>>>> wrote:
>>>>
>>>>> The error message says that you have not configured serialization for
>>>>> the message sample.distributeddata.ReplicatedCache.PutInCache
>>>>> which something tries to send between nodes.
>>>>>
>>>>> --
>>>>> Johan
>>>>> Akka Team
>>>>>
>>>>> On Tue, May 30, 2017 at 10:37 PM, Mainak Ghosh <famousmai...@gmail.com
>>>>> > wrote:
>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> I am recently playing around with cluster aware routers and
>>>>>> distributed data and I have a few questions. I extended the multi jvm 
>>>>>> test
>>>>>> code ReplicatedCacheSpec to create a cluster aware router which creates a
>>>>>> pool of ReplicatedCache worker routees. Here is the code:
>>>>>> https://gist.github.com/mghosh4/55f96a7402960923c528ea69a103c5af
>>>>>>
>>>>>> When I try running this code: I get the following exception:
>>>>>>
>>>>>> Failed to serialize remote message [class
>>>>>> akka.actor.ActorSelectionMessage] using serializer [class
>>>>>> akka.remote.serialization.MessageContainerSerializer]. Transient
>>>>>> association error (association remains live)
>>>>>> [JVM-1]         at akka.remote.MessageSerializer$
>>>>>> .serialize(MessageSerializer.scala:62)
>>>>>> [JVM-1]         at akka.remote.EndpointWriter.$an
>>>>>> onfun$serializeMessage$1(Endpoint.scala:895)
>>>>>> [JVM-1]         at scala.util.DynamicVariable.wit
>>>>>> hValue(DynamicVariable.scala:58)
>>>>>> [JVM-1]         at akka.remote.EndpointWriter.ser
>>>>>> ializeMessage(Endpoint.scala:895)
>>>>>> [JVM-1]         at akka.remote.EndpointWriter.wri
>>>>>> teSend(Endpoint.scala:786)
>>>>>> [JVM-1]         at akka.remote.EndpointWriter$$an
>>>>>> onfun$4.applyOrElse(Endpoint.scala:761)
>>>>>> [JVM-1]         at akka.actor.Actor.aroundReceive(Actor.scala:513)
>>>>>> [JVM-1]         at akka.actor.Actor.aroundReceive$(Actor.scala:511)
>>>>>> [JVM-1]         at akka.remote.EndpointActor.arou
>>>>>> ndReceive(Endpoint.scala:452)
>>>>>> [JVM-1]         at akka.actor.ActorCell.receiveMe
>>>>>> ssage(ActorCell.scala:519)
>>>>>> [JVM-1]         at akka.actor.ActorCell.invoke(ActorCell.scala:488)
>>>>>> [JVM-1]         at akka.dispatch.Mailbox.processM
>>>>>> ailbox(Mailbox.scala:257)
>>>>>> [JVM-1]         at akka.dispatch.Mailbox.run(Mailbox.scala:224)
>>>>>> [JVM-1]         at akka.dispatch.Mailbox.exec(Mailbox.scala:234)
>>>>>> [JVM-1]         at akka.dispatch.forkjoin.ForkJoi
>>>>>> nTask.doExec(ForkJoinTask.java:260)
>>>>>> [JVM-1]         at akka.dispatch.forkjoin.ForkJoi
>>>>>> nPool$WorkQueue.runTask(ForkJoinPool.java:1339)
>>>>>> [JVM-1]         at akka.dispatch.forkjoin.ForkJoi
>>>>>> nPool.runWorker(ForkJoinPool.java:1979)
>>>>>> [JVM-1]         at akka.dispatch.forkjoin.ForkJoi
>>>>>> nWorkerThread.run(ForkJoinWorkerThread.java:107)
>>>>>> [JVM-1] Caused by: java.io.NotSerializableException: No configured
>>>>>> serialization-bindings for class [sample.distributeddata.Replic
>>>>>> atedCache$PutInCache]
>>>>>> [JVM-1]         at akka.serialization.Serializati
>>>>>> on.serializerFor(Serialization.scala:235)
>>>>>> [JVM-1]         at akka.serialization.Serializati
>>>>>> on.findSerializerFor(Serialization.scala:211)
>>>>>> [JVM-1]         at akka.remote.serialization.Mess
>>>>>> ageContainerSerializer.serializeSelection(MessageContainerSe
>>>>>> rializer.scala:35)
>>>>>>
>>>>>> When I change line 83 in the gist from
>>>>>>
>>>>>> context.actorOf(FromConfig.props(ReplicatedCache.props()), name = "
>>>>>> replicatedCache")
>>>>>>
>>>>>> to
>>>>>>
>>>>>> context.actorOf(ReplicatedCache.props), name = "replicatedCache")
>>>>>>
>>>>>> this error goes away. Is there something that I do not understand?
>>>>>>
>>>>>> Finally, I tried adding a resizer block in the configuration. I saw
>>>>>> an exception saying something like resizer and cluster block cannot work
>>>>>> together. Is that a current limitation?
>>>>>>
>>>>>> Thanks,
>>>>>> Mainak
>>>>>>
>>>>>> --
>>>>>> >>>>>>>>>> Read the docs: http://akka.io/docs/
>>>>>> >>>>>>>>>> Check the FAQ: http://doc.akka.io/docs/akka/c
>>>>>> urrent/additional/faq.html
>>>>>> >>>>>>>>>> Search the archives: https://groups.google.com/grou
>>>>>> p/akka-user
>>>>>> ---
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>>>>>>
>>>>>
>>>>> --
>>>>> >>>>>>>>>> Read the docs: http://akka.io/docs/
>>>>> >>>>>>>>>> Check the FAQ: http://doc.akka.io/docs/akka/c
>>>>> urrent/additional/faq.html
>>>>> >>>>>>>>>> Search the archives: https://groups.google.com/grou
>>>>> p/akka-user
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>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> Patrik Nordwall
>>>> Akka Tech Lead
>>>> Lightbend <http://www.lightbend.com/> -  Reactive apps on the JVM
>>>> Twitter: @patriknw
>>>>
>>>> --
>>>> >>>>>>>>>> Read the docs: http://akka.io/docs/
>>>> >>>>>>>>>> Check the FAQ: http://doc.akka.io/docs/akka/c
>>>> urrent/additional/faq.html
>>>> >>>>>>>>>> Search the archives: https://groups.google.com/grou
>>>> p/akka-user
>>>> ---
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>>>>
>>>
>>>
>>>
>>> --
>>> Mainak Ghosh
>>>
>>>
>>>
>>> --
>>> >>>>>>>>>> Read the docs: http://akka.io/docs/
>>> >>>>>>>>>> Check the FAQ: http://doc.akka.io/docs/akka/c
>>> urrent/additional/faq.html
>>> >>>>>>>>>> Search the archives: https://groups.google.com/grou
>>> p/akka-user
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>> --
>> >>>>>>>>>> Read the docs: http://akka.io/docs/
>> >>>>>>>>>> Check the FAQ: http://doc.akka.io/docs/akka/c
>> urrent/additional/faq.html
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>>
>
>
>
> --
> Mainak Ghosh
>
>
>
>


-- 
Mainak Ghosh

-- 
>>>>>>>>>>      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
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