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https://issues.apache.org/jira/browse/LOG4J2-126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13541901#comment-13541901
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Ralph Goers commented on LOG4J2-126:
------------------------------------
I agree with you.
I have modified the JMS appenders so that they always retry if the connection
fails. I have modified the FailoverAppender so that once the primary fails it
will not invoke it again until some configurable time has elapsed. The default
is 60 seconds. Please check out the latest from trunk and confirm it is now
working as expected.
> Failover appender doesn't fail over on JMS Queue appender error
> ---------------------------------------------------------------
>
> Key: LOG4J2-126
> URL: https://issues.apache.org/jira/browse/LOG4J2-126
> Project: Log4j 2
> Issue Type: Bug
> Components: Appenders
> Affects Versions: 2.0-beta4
> Reporter: Szabolcs Beki
> Assignee: Ralph Goers
> Fix For: 2.0-beta4
>
>
> My goal is to send log messages via a JMS Queue unless the message broker is
> down, when I simple want send the logs to the Console.
> I configured a failover appender for this purpose:
> :
> <appenders>
> ...
> <JMSQueue name="LiffLog4j2Queue" queueBindingName="Log4j2Queue"
> factoryBindingName="QueueConnectionFactory"/>
> <Failover name="FailoverLiffLog4j2Queue"
> primary="LiffLog4j2Queue" suppressExceptions="false">
> <Failovers>
> <appender-ref ref="Console"/>
> </Failovers>
> </Failover>
> </appenders>
> <loggers>
> <root level="debug">
> <appender-ref ref="FailoverLiffLog4j2Queue"/>
> </root>
> All works as expected when the message broker is up.
> When I shut down the message broker while running my application, instead of
> the log message I get this message to my console :
> 2012-11-21 21:51:15,726 ERROR Could not publish message via JMS
> JMSQueue:QueueConnectionFactory.Log4j2Queue
> Using a failover appender I expected to get the log messages on the console.
> Also tried to start my application without ever starting message broker. In
> this case it correctly fails to connect :
> 2012-11-21 22:10:08,315 DEBUG Calling createAppender on class
> org.apache.logging.log4j.core.appender.JMSQueueAppender for element JMSQueue
> with params(name="LiffLog4j2Queue", factoryName="null", providerURL="null",
> urlPkgPrefixes="null", securityPrincipalName="null",
> securityCredentials="null", factoryBindingName="QueueConnectionFactory",
> queueBindingName="Log4j2Queue", userName="null", password="null", null, null,
> suppressExceptions="null")
> 2012-11-21 22:10:10,167 ERROR Unable to establish connection
> javax.jms.JMSException: Could not connect to broker URL:
> tcp://localhost:61616. Reason: java.net.ConnectException: Connection refused:
> connect
> at
> org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:35)
> at
> org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:293)
> at
> org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:238)
> at
> org.apache.activemq.ActiveMQConnectionFactory.createQueueConnection(ActiveMQConnectionFactory.java:199)
> at
> org.apache.logging.log4j.core.net.JMSQueueManager$JMSQueueManagerFactory.createManager(JMSQueueManager.java:152)
> at
> org.apache.logging.log4j.core.net.JMSQueueManager$JMSQueueManagerFactory.createManager(JMSQueueManager.java:141)
> at
> org.apache.logging.log4j.core.appender.AbstractManager.getManager(AbstractManager.java:68)
> at
> org.apache.logging.log4j.core.net.JMSQueueManager.getJMSQueueManager(JMSQueueManager.java:86)
> at
> org.apache.logging.log4j.core.appender.JMSQueueAppender.createAppender(JMSQueueAppender.java:94)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createPluginObject(BaseConfiguration.java:711)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:477)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:469)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.doConfigure(BaseConfiguration.java:156)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.start(BaseConfiguration.java:114)
> at
> org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:251)
> at
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:267)
> at
> org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:134)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:75)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:30)
> at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:165)
> at com.szabi.experiment.gui.Liff.<clinit>(Liff.java:16)
> Caused by: java.net.ConnectException: Connection refused: connect
> at java.net.PlainSocketImpl.socketConnect(Native Method)
> at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
> at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
> at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
> at java.net.Socket.connect(Socket.java:529)
> at
> org.apache.activemq.transport.tcp.TcpTransport.connect(TcpTransport.java:504)
> at
> org.apache.activemq.transport.tcp.TcpTransport.doStart(TcpTransport.java:467)
> at org.apache.activemq.util.ServiceSupport.start(ServiceSupport.java:55)
> at
> org.apache.activemq.transport.AbstractInactivityMonitor.start(AbstractInactivityMonitor.java:132)
> at
> org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:58)
> at
> org.apache.activemq.transport.WireFormatNegotiator.start(WireFormatNegotiator.java:72)
> at
> org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:58)
> at
> org.apache.activemq.transport.TransportFilter.start(TransportFilter.java:58)
> at
> org.apache.activemq.ActiveMQConnectionFactory.createActiveMQConnection(ActiveMQConnectionFactory.java:273)
> ... 23 more
> 2012-11-21 22:10:10,177 ERROR Unable to invoke method createAppender in class
> org.apache.logging.log4j.core.appender.JMSQueueAppender for element JMSQueue
> java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createPluginObject(BaseConfiguration.java:711)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:477)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.createConfiguration(BaseConfiguration.java:469)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.doConfigure(BaseConfiguration.java:156)
> at
> org.apache.logging.log4j.core.config.BaseConfiguration.start(BaseConfiguration.java:114)
> at
> org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:251)
> at
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:267)
> at
> org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:134)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:75)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:30)
> at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:165)
> at com.szabi.experiment.gui.Liff.<clinit>(Liff.java:16)
> Caused by: java.lang.IllegalStateException: Unable to create a manager
> at
> org.apache.logging.log4j.core.appender.AbstractManager.getManager(AbstractManager.java:70)
> at
> org.apache.logging.log4j.core.net.JMSQueueManager.getJMSQueueManager(JMSQueueManager.java:86)
> at
> org.apache.logging.log4j.core.appender.JMSQueueAppender.createAppender(JMSQueueAppender.java:94)
> ... 16 more
> BUT shortly afterwards my application exits with :
> 2012-11-21 22:10:10,238 ERROR Unable to locate primary Appender
> LiffLog4j2Queue
> 2012-11-21 22:10:10,239 DEBUG Reconfiguration completed
> 2012-11-21 22:10:10,277 ERROR Attempted to append to non-started appender
> FailoverLiffLog4j2Queue
> 2012-11-21 22:10:10,288 ERROR Attempted to append to non-started appender
> FailoverLiffLog4j2Queue
> 2012-11-21 22:10:10,292 DEBUG Shutting down FileManager output/experiment.log
> Exception in thread "main"
> org.apache.logging.log4j.core.appender.AppenderRuntimeException: Attempted to
> append to non-started appender FailoverLiffLog4j2Queue
> at
> org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:88)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:335)
> As it can not find primary appender (JMSQueue) it can not start the failover
> appender either.
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