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  1. Log4j 2
  2. LOG4J2-240

Recursive call to appender error using Flume appender

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Cannot Reproduce
    • Affects Version/s: 2.0-beta5
    • Fix Version/s: None
    • Component/s: Appenders
    • Labels:
    • Environment:

      Ubuntu 12

      Description

      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="">
      <appenders>
      <Flume name="eventLogger" suppressExceptions="false" compress="false">
      <Agent host="localhost" port="4141"/>
      <RFC5424Layout enterpriseNumber="18060" includeMDC="true" appName="com.weather.ali"/>
      </Flume>
      <RollingFile name="VTECs" fileName="logs/vtecs.log"
      filePattern="logs/$${date:yyyy-MM}/app-%d

      {MM-dd-yyyy}

      -%i.log.gz">
      <PatternLayout>
      <pattern>[%d

      {ISO8601}

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

      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=

      {eventLogger}

      )
      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=

      {org.apache.logging.log4j.core.config.AppenderRef@55ed34f1}

      , 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=

      {root}

      )
      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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            • Assignee:
              Unassigned
              Reporter:
              rstrickland Robbie Strickland
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              • Created:
                Updated:
                Resolved: