Question

我在几个不同的服务器上运行AMQ 5.11.1实例。它们都配置相同并连接到同一网关。在一个特定的服务器上，我不断看到这条消息：

2015-08-12 08:53:59,026 | DEBUG | queue://server-01.lookupdata expiring messages .. | org.apache.activemq.broker.region.Queue | ActiveMQ Broker[server-01] Scheduler
2015-08-12 08:53:59,029 | DEBUG | queue://server-01.lookupdata expiring messages done. | org.apache.activemq.broker.region.Queue | ActiveMQ Broker[server-01] Scheduler
2015-08-12 08:54:08,355 | DEBUG | 30000ms elapsed since last read check. | org.apache.activemq.transport.AbstractInactivityMonitor | ActiveMQ InactivityMonitor ReadCheckTimer
2015-08-12 08:54:08,407 | DEBUG | 30000ms elapsed since last read check. | org.apache.activemq.transport.AbstractInactivityMonitor | ActiveMQ InactivityMonitor ReadCheckTimer
2015-08-12 08:54:08,411 | INFO  | Network connection between vm://server-01#2 and tcp://gateway/209.221.27.54:55616@34260 shutdown due to a local error: java.io.EOFException | org.apache.activemq.network.DemandForwardingBridgeSupport | ActiveMQ Transport: tcp://gateway/209.221.27.54:55616@34260
2015-08-12 08:54:08,414 | DEBUG | The local Exception was: java.io.EOFException | org.apache.activemq.network.DemandForwardingBridgeSupport | ActiveMQ Transport: tcp://gateway/209.221.27.54:55616@34260
java.io.EOFException
        at java.io.DataInputStream.readInt(DataInputStream.java:392)[:1.7.0_71]
        at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:258)[activemq-client-5.11.1.jar:5.11.1]
        at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:221)[activemq-client-5.11.1.jar:5.11.1]
        at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:213)[activemq-client-5.11.1.jar:5.11.1]
        at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:196)[activemq-client-5.11.1.jar:5.11.1]
        at java.lang.Thread.run(Thread.java:745)[:1.7.0_71]
2015-08-12 08:54:08,418 | DEBUG |  stopping server-01 bridge to production | org.apache.activemq.network.DemandForwardingBridgeSupport | ActiveMQ BrokerService[server-01] Task-2
2015-08-12 08:54:08,420 | DEBUG | Unregistering MBean org.apache.activemq:brokerName=server-01,connector=networkConnectors,networkConnectorName=linkToGatewayController1,networkBridge=tcp_//209.221.27.54_55616,type=Broker | org.apache.activemq.broker.jmx.ManagementContext | ActiveMQ BrokerService[server-01] Task-2

调试输出没有帮助，我无法确定导致此连接不断丢失的服务器实例之间的区别。

它有足够的记忆力：

jps -v | grep activemq
40359 activemq.jar -Xmx8G

这是我的activemq.xml的一部分：

   <networkConnector name="linkToGateway"
       uri="static:(tcp://gateway:55616)"
       networkTTL="3"
       duplex="false"
       prefetchSize="2"
   >
        <excludedDestinations>
            <queue physicalName=">"/>
        </excludedDestinations>
        <staticallyIncludedDestinations>
            <queue physicalName="server-01.lookupdata" />
        </staticallyIncludedDestinations>
    </networkConnector>

任何帮助将不胜感激！

Answer 1

我遇到了同样的问题，并通过配置OpenWire协议解决了这个问题。默认的OpenWire设置期望在10秒内和之后的30秒内连接上的流量。您将在日志中看到实际使用的值。我通过设置wireFormat.maxInactivityDuration=0

来禁用此超时（在我的方案中确定...）

整个网址：

tcp://localhost:61616?connectionTimeout=0&keepAlive=true&useInactivityMonitor=false&wireFormat.maxInactivityDuration=0

或确保您立即定期使用该连接。

http://activemq.apache.org/configuring-wire-formats.html

Answer 2

最初我打算将蒂姆·比什的答案标记为正确，但似乎他将其删除了。

网络连接是个问题。某些联系被杀死，在调查和清除这些问题后，事情开始顺利进行。

Answer 3

首先要确保你的连接没有像Tim Bish暗示的那样被外部杀死。

其次，请查看以下thread，其中描述了具有类似症状的ActiveMQ错误。可能你需要更新ActiveMQ。

ActiveMQ 5.11.1不断抛出EOFException并且不会发送消息

3 个答案: