那些遇到过的问题

Akka远程路由主机名配置问题

Rap*_*ale 5 java azure akka akka-cluster akka-remote-actor

我正在体验我正在制作的工具的akka​​远程功能.实际上,我能够使核心和远程系统在具有不同端口的同一主机中工作.请注意,我的远程服务器在路由器上运行,如akka文档中所述.

现在我正在尝试使用几个azure虚拟机来进行更好的实验,但我遇到了一些问题.

核心应用程序具有以下配置(出于安全原因,我已更改了一些名称):

akka.actor.deployment {
  /querierActor/querierPool {
    router = round-robin-pool
    nr-of-instances = 12
    target.nodes = [
       "akka.tcp://SYSTEM@remote-srv01.cloudapp.net:2560"
      ,"akka.tcp://SYSTEM@remote-srv02.cloudapp.net:2560"
      ,"akka.tcp://SYSTEM@remote-srv03.cloudapp.net:2560"

    ]
  }
}

// remote configuration. Use it for multiple machines calculation
akka {
  actor {
    provider = "akka.remote.RemoteActorRefProvider"
  }
  remote {
    enabled-transports = ["akka.remote.netty.tcp"]
    netty.tcp {
      maximum-frame-size = 100MiB
      port = 2552
      hostname = "0.0.0.0"
    }
  }
}
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远程主机具有以下配置:

akka.actor.deployment {
  /querierActor/querierPool {
    router = balancing-pool
    nr-of-instances = 15
  }
}

akka {
  actor {
    provider = "akka.remote.RemoteActorRefProvider"
  }
  remote {
    enabled-transports = ["akka.remote.netty.tcp"]
    netty.tcp {
      maximum-frame-size = 100MiB
      hostname = "0.0.0.0"
      port = 2560
    }
  }
}
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使用此配置,服务器和远程主机显然能够通信,但远程主机开始记录一些错误:

 [ERROR] [01/17/2015 12:55:05.734] [SYSTEM-akka.remote.default-remote-dispatcher-16] [akka.tcp://SYSTEM@0.0.0.0:2560/system/endpointManager/reliableEndpointWriter-akka.tcp%3A%2F%2FSYSTEM%400.0.0.0%3A2552-0/endpointWriter] dropping message [class akka.actor.ActorSelectionMessage] for non-local recipient [Actor[akka.tcp://SYSTEM@remote-srv01.cloudapp.net:2560/]] arriving at [akka.tcp://SYSTEM@remote-srv01.cloudapp.net:2560] inbound addresses are [akka.tcp://SYSTEM@0.0.0.0:2560]
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过了一会儿,服务器和远程主机开始记录错误并冻结.

服务器错误: 

[WARN] [01/17/2015 12:21:05.658] [CRAWLER-LD-akka.remote.default-remote-dispatcher-7] [akka.tcp://SYSTEM@0.0.0.0:2552/system/remote-watcher] Detected unreachable: [akka.tcp://SYSTEM@remote-srv01.cloudapp.net:2560]
[WARN] [01/17/2015 12:21:05.664] [SYSTEM-akka.remote.default-remote-dispatcher-17] [Remoting] Association to [akka.tcp://SYSTEM@remote-srv01.cloudapp.net:2560] with unknown UID is reported as quarantined, but address cannot be quarantined without knowing the UID, gating instead for 5000 ms.

(...)

[INFO] [01/17/2015 12:21:05.712] [SYSTEM-akka.actor.default-dispatcher-6] [akka://SYSTEM/user/querierActor/querierPool] Message [akka.dispatch.sysmsg.DeathWatchNotification] from Actor[akka://SYSTEM/user/querierActor/querierPool#-1217916605] to Actor[akka://SYSTEM/user/querierActor/querierPool#-1217916605] was not delivered. [1] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.

(...)
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远程错误(类似的行数次): 

(...)
[ERROR] [01/17/2015 14:21:16.371] [SYSTEM-akka.remote.default-remote-dispatcher-16] [akka.tcp://SYSTEM@0.0.0.0:2560/system/endpointManager/reliableEndpointWriter-akka.tcp%3A%2F%2FSYSTEM%400.0.0.0%3A2552-2/endpointWriter] dropping message [class akka.actor.ActorSelectionMessage] for non-local recipient [Actor[akka.tcp://SYSTEM@remote-srv01.cloudapp.net:2560/]] arriving at [akka.tcp://SYSTEM@remote-srv01.cloudapp.net:2560] inbound addresses are [akka.tcp://SYSTEM@0.0.0.0:2560]
[ERROR] [01/17/2015 14:21:17.388] [SYSTEM-akka.remote.default-remote-dispatcher-16] [akka.tcp://SYSTEM@0.0.0.0:2560/system/endpointManager/reliableEndpointWriter-akka.tcp%3A%2F%2FSYSTEM%400.0.0.0%3A2552-2/endpointWriter] dropping message [class akka.actor.ActorSelectionMessage] for non-local recipient [Actor[akka.tcp://SYSTEM@remote-srv01.cloudapp.net:2560/]] arriving at [akka.tcp://SYSTEM@remote-srv01.cloudapp.net:2560] inbound addresses are [akka.tcp://SYSTEM@0.0.0.0:2560]
[WARN] [01/17/2015 14:21:17.465] [SYSTEM-akka.remote.default-remote-dispatcher-16] [akka.tcp://SYSTEM@0.0.0.0:2560/system/endpointManager/reliableEndpointWriter-akka.tcp%3A%2F%2FSYSTEM%400.0.0.0%3A2552-2] Association with remote system [akka.tcp://SYSTEM@0.0.0.0:2552] has failed, address is now gated for [5000] ms. Reason is: [Disassociated].
[INFO] [01/17/2015 14:21:17.467] [SYSTEM-akka.actor.default-dispatcher-21] [akka://SYSTEM/system/transports/akkaprotocolmanager.tcp0/akkaProtocol-tcp%3A%2F%2FSYSTEM%40186.228.120.115%3A56044-3] Message [akka.remote.transport.AssociationHandle$Disassociated] from Actor[akka://SYSTEM/deadLetters] to Actor[akka://SYSTEM/system/transports/akkaprotocolmanager.tcp0/akkaProtocol-tcp%3A%2F%2FSYSTEM%40186.228.120.115%3A56044-3#-2070785548] was not delivered. [6] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[INFO] [01/17/2015 14:21:17.468] [SYSTEM-akka.actor.default-dispatcher-21] [akka://SYSTEM/system/transports/akkaprotocolmanager.tcp0/akkaProtocol-tcp%3A%2F%2FSYSTEM%40186.228.120.115%3A56044-3] Message [akka.remote.transport.ActorTransportAdapter$DisassociateUnderlying] from Actor[akka://SYSTEM/deadLetters] to Actor[akka://SYSTEM/system/transports/akkaprotocolmanager.tcp0/akkaProtocol-tcp%3A%2F%2FSYSTEM%40186.228.120.115%3A56044-3#-2070785548] was not delivered. [7] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.

(...)
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我发现问题可能出在主机名配置中,并试图将主机名放到服务器和远程主机上.但是,在这种情况下,系统甚至不加载:

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'FacadeMemory' defined in file [D:\data\development\git\semantic-web-crawler\crawlerld.core\target\classes\net\dovale\websemantics\linkedDataRecommender\facade\memory\FacadeMemory.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [facade.memory.FacadeMemory]: Constructor threw exception; nested exception is org.jboss.netty.channel.ChannelException: Failed to bind to: /remote-srv01.cloudapp.net:2560
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1077)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1022)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:706)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:109)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:952)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:941)
    at facade.memory.GUIMain.main(GUIMain.java:23)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [facade.memory.FacadeMemory]: Constructor threw exception; nested exception is org.jboss.netty.channel.ChannelException: Failed to bind to: /remote-srv01.cloudapp.net:2560
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:164)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1070)
    ... 21 more
Caused by: org.jboss.netty.channel.ChannelException: Failed to bind to: /remote-srv01.cloudapp.net:2560
    at org.jboss.netty.bootstrap.ServerBootstrap.bind(ServerBootstrap.java:272)
    at akka.remote.transport.netty.NettyTransport$$anonfun$listen$1.apply(NettyTransport.scala:393)
    at akka.remote.transport.netty.NettyTransport$$anonfun$listen$1.apply(NettyTransport.scala:389)
    at scala.util.Success$$anonfun$map$1.apply(Try.scala:236)
    at scala.util.Try$.apply(Try.scala:191)
    at scala.util.Success.map(Try.scala:236)
    at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:235)
    at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:235)
    at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32)
    at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.processBatch$1(BatchingExecutor.scala:67)
    at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.apply$mcV$sp(BatchingExecutor.scala:82)
    at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.apply(BatchingExecutor.scala:59)
    at akka.dispatch.BatchingExecutor$Batch$$anonfun$run$1.apply(BatchingExecutor.scala:59)
    at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:72)
    at akka.dispatch.BatchingExecutor$Batch.run(BatchingExecutor.scala:58)
    at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:41)
    at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:401)
    at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
    at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
    at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
    at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.net.BindException: Cannot assign requested address: bind
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Net.java:436)
    at sun.nio.ch.Net.bind(Net.java:428)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
    at org.jboss.netty.channel.socket.nio.NioServerBoss$RegisterTask.run(NioServerBoss.java:193)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.processTaskQueue(AbstractNioSelector.java:372)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:296)
    at org.jboss.netty.channel.socket.nio.NioServerBoss.run(NioServerBoss.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
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我不知道我做错了什么.我试图找到有关该问题的信息,但我发现的任何内容都与我的问题有关.我也在azure配置上打开了端口.

如何让我的服务器主机与我的远程主机进行财务通信？

Rap*_*ale 5

我能够解决这个问题.

经过一些无效的研究,我不得不尝试一些不同的东西.我做了一些可能错误的假设,因为我没有找到任何其他信息.如果您正在阅读此答案并发现任何错误,请告诉我们.

问题是框​​架(sun.nio.ch.Net.bind0显然,但我找不到很多关于它的文档)允许以下范围的ips:0.0.0.0(如果您接受来自任何网络接口的连接)机器),127.0.0.0(如果您只使用本地请求 - 我来宾)和任何计算机网络接口的IP地址.在最后一种情况下,只允许请求到此特定接口.

问题是"hostname"属性也用于寻址Akka的远程节点.我的意思是,当主机节点调用远程节点时,它使用此信息来识别完成后需要发送的结果.此外,如果您将属性hostname的值设置为0.0.0.0并尝试通过其dns名称(无法与任何网络接口关联)访问此节点,则它将失败.您必须使用与其中一个网络接口相同的IP来识别机器.

所以,我的设置略有改变:

对于主机节点,我进行了以下更改:

(...)
akka.actor.deployment {
  /sparqlQuerierMasterActor/sparqlQuerierPool {
    router = round-robin-pool
    nr-of-instances = 12
    target.nodes = [
       "akka.tcp://SYSTEM@XXX.XXX.XXX.XXX:2560"
      ,"akka.tcp://SYSTEM@YYY.YYY.YYY.YYY:2560"
      ,"akka.tcp://SYSTEM@ZZZ.ZZZ.ZZZ.ZZZ:2560"

    ]
  }
}
(...)
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XXX,YYY和ZZZ是远程节点的可达IP,其也在网络接口处注册.

远程节点的配置更改为:

(...)
  remote {
    enabled-transports = ["akka.remote.netty.tcp"]
    netty.tcp {
      maximum-frame-size = 100MiB
      hostname = "YYY.YYY.YYY.YYY"
      port = 2560
    }
  }
(...)
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我没有测试它我可以保持以前的0.0.0.0配置.也许这是可能的.

这个解决方案允许我使主机和远程节点完美地通信=)

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