Absolutely clear.
Many thanks for your reply.
I'll check the persistence feature.
Best regards.
El lunes, 25 de septiembre de 2017, 15:02:40 (UTC+2),
johannes...@lightbend.com escribió:
>
> Hi Eduardo,
>
> cluster sharding has at-most-once delivery (as most of Akka) so losing
> some messages is to be expected. Persistent actor can opt-in to
> at-least-once delivery (see
> http://doc.akka.io/docs/akka/current/scala/persistence.html#at-least-once-delivery),
>
> for other actors, you need to make sure to confirm and resend messages
> manually.
>
> Johannes
>
> On Friday, September 22, 2017 at 6:02:48 PM UTC+2, Eduardo Fernandes wrote:
>>
>> Hi all.
>>
>> I'm using Akka 2.3.13 [I know... a bit old :( ] with Java.
>>
>> A few times I'm loosing messages (in a very intensive concurrent
>> environment). In my case a message is sent to the actor just before the
>> postStop() method is called, indicating that the kill action is sent to it
>> due the rebalancing logic.
>>
>> By documentation the PoisonPill is sent and the the ShardRegion actor
>> (proxy) stop sending messages until the shard is completely rebalanced.
>> Following my traces the unique case I have where I loose a message is when
>> I'm sending the message using the shard region actor which is physically in
>> the same process where the destine actor is. I have an unique id in my
>> messages the actor prints it on reception. Other commands sen't to the same
>> actor from other nodes after rebalancing work fine.
>>
>> I suppose the command would be queued and then sent automatically after
>> rebalancing but I can't observe this.
>>
>> Have I to do something programmatically to make this work?
>>
>> Many thanks in advance for any help
>>
>> /Eduardo
>>
>
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