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 name
On Fri, Oct 9, 2015 at 1:23 PM, 'Konstantinos Kougios' via Akka User
List <[email protected] <mailto:[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]
<mailto:[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
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