The databaseServer actor is not affected by the deaths of the indexes.
Btw, all my Terminated actors are local (same ActorSystem, same jvm) to the watcher, does that help?
On 09/10/15 17:36, Michael Frank wrote:
instead of using actor paths to send directly to the index actor, why not send your message to the /databaseServer actor, which then forwards the message to the appropriate index actor? the databaseServer actor would contain a Map[String,ActorRef] which maps index name to index actor (which are its children), and would register deathwatch on each child, so it would be notified when an index goes away and update its state.-Michael On 10/09/15 08:58, 'Konstantinos Kougios' via Akka User List wrote:well, I am using actor paths to find the actors, which are unique per ActorSystem.I.e. paths are ../databaseServer ../databaseServer/index:x1 ../databaseServer/index:x2 I am using the akka cluster, so each "server" will have these paths.Now when I do a "dropIndex" and drop index x1, actors ../databaseServer/index:x1 on each server must terminate. I would like to know precisely when that occurred, because a drop/recreate will have the issue of the same actor name.Now I could, for tests, use a unique index name each time. But some tests need to drop/recreate the /databaseServer (and remember I refer to the indexes by ../databaseServer/index:x1)Cheers On 09/10/15 12:30, Patrik Nordwall wrote:it's probably easies to not reuse the nameOn Fri, Oct 9, 2015 at 1:23 PM, 'Konstantinos Kougios' via Akka User List <[email protected]> wrote:Well, I have this component based on 1 actor. It is the "flow" thing I was talking a few months ago, anyway it does take care of a process between different actors. One thing it does is to stop an other actor and wait till it is terminated. I need to make sure the other actor is really terminated because further down an actor with the same name is created - which randomly & rarely fails with "actor name [databaseServer] is not unique!" On 09/10/15 12:17, Patrik Nordwall wrote:On Fri, Oct 9, 2015 at 12:59 PM, 'Konstantinos Kougios' via Akka User List <[email protected]> wrote: oh... in that case my code changes won't work. The watcher is not the parent of the actor. Will it work if the watcher is child of the same parent of the Terminated actor? no, but what would a sibling do? it can't recreate the actor, it is only the parent that can create child actor with same name On 09/10/15 06:08, Patrik Nordwall wrote:Note that this advice is correct but only when the parent actor receives the Terminated, i.e. it does not hold for top level actors where you can only watch from the "outside". tors 8 okt. 2015 kl. 11:46 skrev Kostas kougios <[email protected] <mailto:[email protected]>>: Thanks, I am doing that now and hopefully it works (the issue occurred very rarely, so I have to wait and see) On Friday, 2 October 2015 17:16:35 UTC+1, Ryan Tanner wrote: Don't create the replacement actor until you've received a Terminated message for the original actor. On Friday, October 2, 2015 at 8:58:54 AM UTC-6, Kostas kougios wrote: I create a named actor, stop it and recreate it with the same name. Because stop is async, I end up with exceptions like akka.actor.InvalidActorNameException: actor name [databaseServer] is not unique! [info] at akka.actor.dungeon.ChildrenContainer$NormalChildrenContainer.reserve(ChildrenContainer.scala:130) [info] at akka.actor.dungeon.Children$class.reserveChild(Children.scala:77) [info] at akka.actor.ActorCell.reserveChild(ActorCell.scala:373) [info] at akka.actor.dungeon.Children$class.makeChild(Children.scala:215) [info] at akka.actor.dungeon.Children$class.attachChild(Children.scala:42) [info] at akka.actor.ActorCell.attachChild(ActorCell.scala:373) [info] at akka.actor.ActorSystemImpl.actorOf(ActorSystem.scala:586) [info] at org.distributedrange.actors.StreamActor$$anonfun$2.apply(StreamActor.scala:122) I get the same exception even if I set an AtomicBoolean to true at: override def postStop() = { stopped.set(true) super.postStop() } and then while (!stopped.get) { Thread.sleep(1) } Is there a way to "block" and wait till the actor stops? (don't worry about the block part, it is only for test cases) Thanks-- >>>>>>>>>> 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.-- /Patrik -->>>>>>>>>> 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 a topic in the Google Groups "Akka User List" group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/akka-user/u1TWqZYTKBE/unsubscribe. To unsubscribe from this group and all its topics, 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.-- >>>>>>>>>> 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] <mailto:[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.--Patrik Nordwall Typesafe <http://typesafe.com/> - Reactive apps on the JVM Twitter: @patriknw-- >>>>>>>>>> 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 a topic in the Google Groups "Akka User List" group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/akka-user/u1TWqZYTKBE/unsubscribe. To unsubscribe from this group and all its topics, send an email to [email protected] <mailto:[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.-- >>>>>>>>>> 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. -- Patrik Nordwall Typesafe <http://typesafe.com/> - Reactive apps on the JVM Twitter: @patriknw -- >>>>>>>>>> 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 a topic in the Google Groups "Akka User List" group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/akka-user/u1TWqZYTKBE/unsubscribe. To unsubscribe from this group and all its topics, send an email to [email protected] <mailto:[email protected]>. To post to this group, send email to [email protected] <mailto:[email protected]>.Visit this group at http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.-- >>>>>>>>>> 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] <mailto:[email protected]>. To post to this group, send email to [email protected] <mailto:[email protected]>.Visit this group at http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.-- >>>>>>>>>> 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 a topic in the Google Groups "Akka User List" group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/akka-user/u1TWqZYTKBE/unsubscribe. To unsubscribe from this group and all its topics, send an email to [email protected] <mailto:[email protected]>. To post to this group, send email to [email protected] <mailto:[email protected]>.Visit this group at http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
--
--- You received this message because you are subscribed to the Google Groups "Akka User List" group.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
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.
