Question

使用akka（.net）我正在尝试实现简单的集群用例。

群集 - 用于节点上/下事件。
远程 - 用于向特定节点发送消息。

有两个参与者：主节点监听集群事件和从节点连接到集群。

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

重新创建ClusterEvent.MemberUp消息时，主节点创建actor链接：

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

向此actor发送消息会导致错误：

与远程系统关联akka.tcp：// ClusterSystem @ slave：8090失败;地址现在被门控5000毫秒。原因是：[Disocociated]

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
        }}
    }

slave config：

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
        }

heartbeat-interval和auto-down-unreachable-after持续时间相同 - 因此你的节点几乎总是会在10秒后自动解除关联，因为你正在押注故障检测器可能丢失的竞争条件。

auto-down-unreachable-after是危险设置 - 请勿使用它。你最终会出现脑裂或更糟的情况。

确保您的故障检测器间隔始终低于自动停机间隔。

具有远程节点的Akka（.net）集群：Disassociated exception

1 个答案: