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尽管代理 URL 中有 0.0.0.0,但 ActiveMQ 远程连接被拒绝

转载 作者:行者123 更新时间:2023-12-04 16:50:03 27 4
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我有一个运行在 Karaf v2.3.3 中的 ActiveMQ v5.7.0 代理,我想为远程连接启用它。我已将代理 URL 设置为 0.0.0.0:61616,以使其能够监听网络流量。我已经打开防火墙以允许来自客户端计算机的流量。但是,所有远程连接都被拒绝。一个快速的 netstat 似乎告诉我代理没有在本地主机之外监听。

jeremy@server:~$ netstat -pan | grep 61616
tcp6 0 0 127.0.0.1:61616 :::* LISTEN -

通过 Hawtio 查看经纪人告诉我 URL 看起来应该是这样。

Transport connectors    Openwire: tcp://0.0.0.0:61616?maximumConnections=1000&wireformat.maxFrameSize=104857600

防火墙绝对没问题,因为连接被拒绝而不是被丢弃。

代理正确响应来自本地主机的连接。

2013-10-14 17:34:29 Connected to localhost:61613

这是我从远程连接得到的那种错误:-

Error connecting to xxx.xxx.xxx.xxx:61613: IO::Socket::INET: connect: Connection refused at /usr/local/share/perl/5.14.2/Net/Stomp.pm line 102.

编辑:添加了 telnet 输出

本地主机端口 61613

jeremy@server:~$ telnet localhost 61613
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

远程连接端口61613

jeremy@other-server:~$ telnet xxx.xxx.xxx.xxx 61613
Trying xxx.xxx.xxx.xxx...
telnet: Unable to connect to remote host: Connection refused

Localhost连接端口61616(这个很有意思)

jeremy@server:~$ telnet localhost 61616
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
ðActiveMQ Þ
MaxFrameSizÿÿÿ CacheSize
CacheEnabledSizePrefixDisabled MaxInactivityDurationInitalDelay'TcpNoDelayEnabledMaxInactivityDurationu0TightEncodingEnabledStackTraceEnabledPuTTYConnection closed by foreign host.

远程连接端口61616

jeremy@other-server:~$ telnet xxx.xxx.xxx.xxx 61616
Trying xxx.xxx.xxx.xxx...
telnet: Unable to connect to remote host: Connection refused

编辑:添加了远程服务器 karaf 日志输出

2013-10-15 19:00:46,599 | ERROR | c.event.invited] | faultJmsMessageListenerContainer | .DefaultMessageListenerContainer  909 | 69 - org.springframework.jms - 3.2.4.RELEASE | Could not refresh JMS Connection for destination 'Consumer.notifications.VirtualTopic.event.invited' - retrying in 5000 ms. Cause: Error while attempting to add new Connection to the pool; nested exception is javax.jms.JMSException: Could not connect to broker URL: tcp://xxx.xxx.xxx.xxx:61616. Reason: java.net.ConnectException: Connection refused

这是 broker.xml。

<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.0.0"
xmlns:ext="http://aries.apache.org/blueprint/xmlns/blueprint-ext/v1.0.0"
xmlns:amq="http://activemq.apache.org/schema/core">

<ext:property-placeholder />

<broker xmlns="http://activemq.apache.org/schema/core"
brokerName="jellyfish-messaging"
dataDirectory="${karaf.data}/activemq/localhost"
useShutdownHook="false"
persistent="true"
schedulerSupport="true"
startAsync="true">

<destinationPolicy>
<policyMap>
<policyEntries>
<policyEntry topic=">" producerFlowControl="true" memoryLimit="1mb">
<pendingSubscriberPolicy>
<vmCursor />
</pendingSubscriberPolicy>
</policyEntry>
<policyEntry queue=">" producerFlowControl="true" memoryLimit="1mb">
</policyEntry>
</policyEntries>
</policyMap>
</destinationPolicy>

<persistenceAdapter>
<kahaDB directory="${karaf.data}/activemq/localhost/kahadb"/>
</persistenceAdapter>

<systemUsage>
<systemUsage>
<memoryUsage>
<memoryUsage limit="64 mb"/>
</memoryUsage>
<storeUsage>
<storeUsage limit="100 gb"/>
</storeUsage>
<tempUsage>
<tempUsage limit="50 gb"/>
</tempUsage>
</systemUsage>
</systemUsage>

<!-- The transport connectors ActiveMQ will listen to -->
<transportConnectors>
<!-- DOS protection, limit concurrent connections to 1000 and frame size to 100MB -->
<transportConnector name="openwire" uri="tcp://0.0.0.0:61616?maximumConnections=1000&amp;wireformat.maxFrameSize=104857600"/>
<transportConnector name="stomp" uri="stomp://0.0.0.0:61613?maximumConnections=1000&amp;wireformat.maxFrameSize=104857600"/>
</transportConnectors>

</broker>

<bean id="jmsConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
<property name="brokerURL" value="tcp://0.0.0.0:61616" />
</bean>

<bean id="pooledConnectionFactory" class="org.apache.activemq.pool.PooledConnectionFactory">
<property name="maxConnections" value="8" />
<property name="maximumActive" value="500" />
<property name="connectionFactory" ref="jmsConnectionFactory" />
</bean>

<bean id="resourceManager" class="org.apache.activemq.pool.ActiveMQResourceManager" init-method="recoverResource">
<property name="transactionManager" ref="transactionManager" />
<property name="connectionFactory" ref="jmsConnectionFactory" />
<property name="resourceName" value="activemq.localhost" />
</bean>

<bean id="jmsConfig" class="org.apache.camel.component.jms.JmsConfiguration">
<property name="connectionFactory" ref="pooledConnectionFactory" />
<property name="transacted" value="false" />
<property name="concurrentConsumers" value="10" />
</bean>

<bean id="activemq" class="org.apache.activemq.camel.component.ActiveMQComponent">
<property name="configuration" ref="jmsConfig" />
</bean>

<reference id="transactionManager" interface="javax.transaction.TransactionManager" />

<service ref="pooledConnectionFactory" interface="javax.jms.ConnectionFactory">
<service-properties>
<entry key="name" value="localhost"/>
</service-properties>
</service>
</blueprint>

谁能告诉我我错过了什么?

谢谢,

J.

最佳答案

我已经解决了这个问题。这既不是防火墙的问题,也不是 ActiveMQ 配置的问题。

定义 ActiveMQ 代理的 Karaf kar 文件包含 activemq-web-console 功能。我们没有使用过这个功能,因为我们是 Hawtio 的粉丝,所以从未配置过它。

根据 this blog post ,控制台出现了默认设置,包括监听端口 61616。这意味着两个代理在启动时处于竞争状态,而 webconsole 定义的通常获胜。由于默认情况下它未配置为远程访问,因此它仅锁定本地主机连接的端口。

赠品是 Karaf 主目录中名为 ${activemq.data}(字面意思)的目录,其中包含第二个 Kahadb 存储库。我们所有的代理配置都设置为使用 data 目录,而且我们从未专门设置 ActiveMQ 环境变量,因此这导致我们寻找第二个代理可能来自哪里。

如果我们在 Karaf session 中执行 activemq:list 可能会更快地发现它,因为它列出了两个代理。

简单的解决方案 - 从功能 XML 中删除 activemq-web-console

关于尽管代理 URL 中有 0.0.0.0,但 ActiveMQ 远程连接被拒绝,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19365009/

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