Hi
did you manage to run this code sample? I'm on version 2.11:2.4.7 and I
can't figure out how to configure MultiNode config for Java.
Best
SM
W dniu poniedziałek, 22 września 2014 06:28:01 UTC+2 użytkownik jen napisał:
>
> I tried translate to Java of the existing Scala codes:
>
> public class ClusterTest {
>
> protected RoleName first;
>
> @Test
> public void SimpleClusterListenerClusterJoinTest() throws Exception {
> new MultiNodeSpec(new MultiNodeConfig() {{
> first = this.role("first");
> second = this.role("second");
> third = this.role("third");
> this.commonConfig(ConfigFactory.parseString(
> "akka.crdt.convergent.leveldb.destroy-on-shutdown = on\n" +
> "akka.actor.provider =
> akka.cluster.ClusterActorRefProvider\n" +
> "akka.cluster.auto-join = off\n" +
> "akka.cluster.auto-down = on\n" +
> "akka.loggers = [\"akka.testkit.TestEventListener\"]\n" +
> "akka.loglevel = INFO\n" +
> "akka.remote.log-remote-lifecycle-events = off")); }}) {
> {
> Address firstAddress = node(first).address();
> @SuppressWarnings("serial")
> ArrayList<RoleName> firstnode = new
> ArrayList<RoleName>() {{
> add(first);
> }};
> Seq<RoleName> fisrtnodeseq =
> (Seq<RoleName>)JavaConversions.asScalaBuffer(firstnode).toList();
>
> runOn(fisrtnodeseq, null);
>
> Cluster cluster = new Cluster((ExtendedActorSystem) system());
> cluster.join(firstAddress);
> // verify that single node becomes member
> cluster.subscribe(testActor(), MemberEvent.class);
> expectMsg(MemberUp.class);
> }
>
> @Override
> public int initialParticipants() {
> return roles().size();
> }};
>
> }
>
> }
>
> HOWEVER During the run with the arguments: -Dmultinode.max-nodes=4
> -Dmultinode.host=127.0.0.1 etc. according to Multi Node Testing
> <http://doc.akka.io/docs/akka/snapshot/dev/multi-node-testing.html> I
> will get the following error:
>
> java.lang.IllegalArgumentException: invalid ActorSystem name [ClusterTest_2],
> must contain only word characters (i.e. [a-zA-Z0-9] plus non-leading '-')
> at akka.actor.ActorSystemImpl.<init>(ActorSystem.scala:497)
> at akka.actor.ActorSystem$.apply(ActorSystem.scala:141)
> at akka.actor.ActorSystem$.apply(ActorSystem.scala:118)
> at akka.remote.testkit.MultiNodeSpec.<init>(MultiNodeSpec.scala:252)
> at com.akkamint.demo.ClusterTest$2.<init>(ClusterTest.java:51)
>
> is the internally generated ActorSystem name wrong?
>
> Besides this I have two questions:
> 1. How can access the gossips from Java as in the Scala code,
>
> awaitCond(Cluster(system).latestGossip.members.exists(m ⇒ m.address ==
> firstAddress && m.status == Up))
>
> as I have not found any way to implement the same in Java. My workaround
> is to subscribe to member events (see above), otherwise I do not know, is
> if this effectively the same or not?
> 2. Thunk function (the second argument of runOn method)? What is that? How
> can use it?
>
> I appreciate your help.
>
>
>
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