Reduce unwanted logging from remoting, see #2826

* Handle logging in EndpointManager supervisorStrategy
* Added some more exception types to be able to differentiate
  failures

akka-cluster/src/multi-jvm/scala/akka/cluster/MultiNodeClusterSpec.scala

@@ -81,6 +81,9 @@ trait MultiNodeClusterSpec extends Suite with STMultiNodeSpec with WatchedByCoro
 
       Seq(".*received dead letter from.*ClientDisconnected",
         ".*received dead letter from.*deadLetters.*PoisonPill",
+        ".*received dead letter from.*Disassociated",
+        ".*received dead letter from.*DisassociateUnderlying",
+        ".*received dead letter from.*HandleListenerRegistered",
         ".*installing context org.jboss.netty.channel.DefaultChannelPipeline.*") foreach { s ⇒
           sys.eventStream.publish(Mute(EventFilter.warning(pattern = s)))
         }

akka-remote/src/main/scala/akka/remote/Endpoint.scala

@@ -124,9 +124,22 @@ private[remote] class EndpointException(msg: String, cause: Throwable) extends A
 /**
  * INTERNAL API
  */
+@SerialVersionUID(1L)
 private[remote] case class InvalidAssociation(localAddress: Address, remoteAddress: Address, cause: Throwable)
   extends EndpointException("Invalid address: " + remoteAddress, cause)
 
+/**
+ * INTERNAL API
+ */
+@SerialVersionUID(1L)
+private[remote] class EndpointDisassociatedException(msg: String) extends EndpointException(msg)
+
+/**
+ * INTERNAL API
+ */
+@SerialVersionUID(1L)
+private[remote] class EndpointAssociationException(msg: String, cause: Throwable) extends EndpointException(msg, cause)
+
 /**
  * INTERNAL API
  */
@@ -184,11 +197,9 @@ private[remote] class EndpointWriter(
       stash()
       stay()
     case Event(Status.Failure(e: InvalidAssociationException), _) ⇒
-      log.error("Tried to associate with invalid remote address [{}]. " +
-        "Address is now quarantined, all messages to this address will be delivered to dead letters.", remoteAddress)
       publishAndThrow(new InvalidAssociation(localAddress, remoteAddress, e))
     case Event(Status.Failure(e), _) ⇒
-      publishAndThrow(new EndpointException(s"Association failed with [$remoteAddress]", e))
+      publishAndThrow(new EndpointAssociationException(s"Association failed with [$remoteAddress]", e))
     case Event(inboundHandle: AssociationHandle, _) ⇒
       // Assert handle == None?
       handle = Some(inboundHandle)
@@ -246,7 +257,7 @@ private[remote] class EndpointWriter(
   }
 
   whenUnhandled {
-    case Event(Terminated(r), _) if Some(r) == reader ⇒ publishAndThrow(new EndpointException("Disassociated"))
+    case Event(Terminated(r), _) if r == reader.orNull ⇒ publishAndThrow(new EndpointDisassociatedException("Disassociated"))
     case Event(TakeOver(newHandle), _) ⇒
       // Shutdown old reader
       handle foreach { _.disassociate() }

akka-remote/src/main/scala/akka/remote/Remoting.scala

@@ -352,12 +352,22 @@ private[remote] class EndpointManager(conf: Config, log: LoggingAdapter) extends
     Some(context.system.scheduler.schedule(pruneInterval, pruneInterval, self, Prune))
   else None
 
-  override val supervisorStrategy = OneForOneStrategy(settings.MaximumRetriesInWindow, settings.RetryWindow) {
-    case InvalidAssociation(localAddress, remoteAddress, e) ⇒
+  override val supervisorStrategy =
+    OneForOneStrategy(settings.MaximumRetriesInWindow, settings.RetryWindow, loggingEnabled = false) {
+      case InvalidAssociation(localAddress, remoteAddress, _) ⇒
+        log.error("Tried to associate with invalid remote address [{}]. " +
+          "Address is now quarantined, all messages to this address will be delivered to dead letters.", remoteAddress)
         endpoints.markAsFailed(sender, Deadline.now + settings.UnknownAddressGateClosedFor)
         Stop
 
       case NonFatal(e) ⇒
+
+        // logging
+        e match {
+          case _: EndpointDisassociatedException | _: EndpointAssociationException ⇒ // no logging
+          case _ ⇒ log.error(e, e.getMessage)
+        }
+
         // Retrying immediately if the retry gate is disabled, and it is an endpoint used for writing.
         if (!retryGateEnabled && endpoints.isWritable(sender)) {
           // This strategy keeps all the messages in the stash of the endpoint so restart will transfer the queue

akka-remote/src/test/scala/akka/remote/RemotingSpec.scala

@@ -137,7 +137,8 @@ class RemotingSpec extends AkkaSpec(RemotingSpec.cfg) with ImplicitSender with D
     }
 
     "send error message for wrong address" in {
-      filterEvents(EventFilter[EndpointException](occurrences = 6), EventFilter.error(start = "Association", occurrences = 6)) {
+      filterEvents(EventFilter.error(start = "Association", occurrences = 6),
+        EventFilter.warning(pattern = ".*dead letter.*echo.*", occurrences = 1)) {
           system.actorFor("akka.test://nonexistingsystem@localhost:12346/user/echo") ! "ping"
         }
     }