带有远程节点的Akka（.net）群集：解除关联的异常

Question

使用akka（. net）我试图实现简单的集群用例。

1. 群集-用于节点向上/向下事件
2. 远程-用于向特定节点发送消息

有两个参与者：主节点，它监听集群事件，从属节点，它连接到集群。

Address address = new Address("akka.tcp", "ClusterSystem", "master", 8080);
cluster.Join(address);

当群集事件发生时。MemberUp消息已被保留主节点创建参与者链接：

ClusterEvent.MemberUp up = message as ClusterEvent.MemberUp;
ActorSelection nodeActor = system.ActorSelection(up.Member.Address + "/user/slave_0");

向此参与者发送消息会导致错误：

与远程系统akka的关联。tcp://ClusterSystem@从机：8090失败；地址现在为5000毫秒。原因是：[解除关联]

主配置：

    akka {
        actor {
            provider = ""Akka.Cluster.ClusterActorRefProvider, Akka.Cluster""
        }

        remote {
            helios.tcp {
                port = 8080
                hostname = master
                bind-hostname = master
                bind-port = 8080
                send-buffer-size = 512000b
                receive-buffer-size = 512000b
                maximum-frame-size = 1024000b
                tcp-keepalive = on
            }
        }
        cluster{
            failure-detector {
                heartbeat - interval = 10 s
            }
            auto-down-unreachable-after = 10s
            gossip-interval = 5s
        }
        stdout-loglevel = DEBUG
        loglevel = DEBUG

        debug {{  
            receive = on 
            autoreceive = on
            lifecycle = on
            event-stream = on
            unhandled = on
        }}
    }

从配置：

akka {
        actor {
            provider = ""Akka.Cluster.ClusterActorRefProvider, Akka.Cluster""
        }

    remote {
        helios.tcp {
            port = 8090
            hostname = slave
            bind-hostname = slave
            bind-port = 8090
            send-buffer-size = 512000b
            receive-buffer-size = 512000b
            maximum-frame-size = 1024000b
            tcp-keepalive = on
        }
    }
    cluster{
        failure-detector {
            heartbeat - interval = 10 s
        }
        auto-down-unreachable-after = 10s
        gossip-interval = 5s
    }
    stdout-loglevel = DEBUG
    loglevel = DEBUG

    debug {{  
        receive = on 
        autoreceive = on
        lifecycle = on
        event-stream = on
        unhandled = on
    }}

}

Answer 1

这是你的问题：

cluster{
            failure-detector {
                heartbeat - interval = 10 s
            }
            auto-down-unreachable-after = 10s
            gossip-interval = 5s
        }

心跳间隔和自动下降不可达后是相同的持续时间-因此，您的节点几乎总是在10秒后自动断开关联，因为您在赌失败检测器可能会失败的竞争条件。

自动下降后无法达到是一个危险的设置-不要使用它。你最终会导致大脑分裂或更糟。

并确保故障检测间隔始终低于自动关闭间隔。