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  1. Log4j 2
  2. LOG4J2-240

Recursive call to appender error using Flume appender

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    • Bug
    • Status: Resolved
    • Major
    • Resolution: Cannot Reproduce
    • 2.0-beta5
    • None
    • Appenders
    • Ubuntu 12


      I am using Log4j2 with the Flume appender with the following configuration:

      <?xml version="1.0" encoding="UTF-8"?>
      <configuration status="debug" name="ALI" packages="">
      <Flume name="eventLogger" suppressExceptions="false" compress="false">
      <Agent host="localhost" port="4141"/>
      <RFC5424Layout enterpriseNumber="18060" includeMDC="true" appName="com.weather.ali"/>
      <RollingFile name="VTECs" fileName="logs/vtecs.log"




      ] %m%n</pattern>
      <TimeBasedTriggeringPolicy />
      <SizeBasedTriggeringPolicy size="250 MB"/>
      <root level="debug">
      <appender-ref ref="eventLogger"/>
      <logger name="VTEC" level="debug">
      <appender-ref ref="VTECs"/>

      This works as expected on a couple nodes, but the remaining nodes produce the following error:

      ERROR Recursive call to appender eventLogger

      Here is the full output of the Log4j bootstrap:

      2013-05-07 09:21:59,033 DEBUG Calling createAgent on class org.apache.logging.log4j.flume.appender.Agent for element Agent with params(host="localhost", port="4141")
      2013-05-07 09:21:59,040 DEBUG Calling createLayout on class org.apache.logging.log4j.core.layout.RFC5424Layout for element RFC5424Layout with params(facility="null", id="null", enterpriseNumber="18060", includeMDC="true", mdcId="null", mdcPrefix="null", eventPrefix="null", newLine="null", newLineEscape="null", appName="com.weather.ali", messageId="null", mdcExcludes="null", mdcIncludes="null", mdcRequired="null", charset="null", exceptionPattern="null", Configuration(MyApp))
      2013-05-07 09:22:02,148 DEBUG Generated plugins in 3.106963125 seconds
      2013-05-07 09:22:02,156 DEBUG Calling createAppender on class org.apache.logging.log4j.flume.appender.FlumeAppender for element Flume with params(agents=

      {host=localhost port=4141}

      , properties={}, embedded="null", type="null", dataDir="null", connectTimeout="null", requestTimeout="null", agentRetries="null", maxDelay="null", name="eventLogger", suppressExceptions="false", mdcExcludes="null", mdcIncludes="null", mdcRequired="null", mdcPrefix="null", eventPrefix="null", compress="false", batchSize="null", null, RFC5424Layout(facility=LOCAL0 appName=com.weather.ali defaultId=Audit enterpriseNumber=18060 newLine=false includeMDC=true messageId=null), null)
      2013-05-07 09:22:02,159 DEBUG Starting FlumeAvroManager FlumeAvro[localhost:4141]
      2013-05-07 09:22:02,552 DEBUG Calling createAppenders on class org.apache.logging.log4j.core.config.plugins.AppendersPlugin for element appenders with params(appenders=


      2013-05-07 09:22:06,774 DEBUG Generated plugins in 4.221008626 seconds
      2013-05-07 09:22:06,776 DEBUG Calling createAppenderRef on class org.apache.logging.log4j.core.config.AppenderRef for element appender-ref with params(ref="eventLogger", level="null", null)
      2013-05-07 09:22:06,778 DEBUG Calling createLogger on class org.apache.logging.log4j.core.config.LoggerConfig$RootLogger for element root with params(additivity="null", level="debug", includeLocation="null", appender-ref=


      , properties={}, Configuration(MyApp), null)
      2013-05-07 09:22:06,779 DEBUG Calling createLoggers on class org.apache.logging.log4j.core.config.plugins.LoggersPlugin for element loggers with params(loggers=


      2013-05-07 09:22:06,779 DEBUG Shutting down OutputStreamManager SYSTEM_OUT
      2013-05-07 09:22:06,779 DEBUG Reconfiguration completed
      2013-05-07 09:22:07,237 ERROR Recursive call to appender eventLogger

      Why would this work on some nodes and not on others? I have looked at the code where this error is generated, and it appears to get called whenever the appender code gets called more than once. I see no reason why this should happen.



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            Unassigned Unassigned
            rstrickland Robbie Strickland
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