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  1. Hive
  2. HIVE-15050

Webhcat fails to start with Syslog appender

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.1.0
    • Fix Version/s: None
    • Component/s: WebHCat
    • Labels:
      None
    • Environment:

      Hive 2.1.0, Hadoop 2.7.2

      Description

      WebHCat fails to start if SyslogAppender is set instead of a more conventional FileAppender or DailyRollingFileAppender. However, Hive itself can work with a syslog appender.
      The error displayed when the webhcat service is killed is:

      2016-10-25 09:45:29,538 main ERROR Unable to write to stream UDP:127.0.0.1:514 for appender SYSLOG
      2016-10-25 09:45:29,540 main ERROR An exception occurred processing Appender SYSLOG org.apache.logging.log4j.core.appender.AppenderLoggingException: Error flushing stream UDP:127.0.0.1:514
              at org.apache.logging.log4j.core.appender.OutputStreamManager.flush(OutputStreamManager.java:159)
              at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:107)
              at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:152)
              at org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:125)
              at org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:116)
              at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
              at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:390)
              at org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:378)
              at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:362)
              at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:352)
              at org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:63)
              at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:143)
              at org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:1016)
              at org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:964)
              at org.apache.logging.slf4j.Log4jLogger.info(Log4jLogger.java:178)
              at org.apache.hive.hcatalog.templeton.AppConfig.init(AppConfig.java:197)
              at org.apache.hive.hcatalog.templeton.AppConfig.<init>(AppConfig.java:176)
              at org.apache.hive.hcatalog.templeton.Main.loadConfig(Main.java:101)
              at org.apache.hive.hcatalog.templeton.Main.init(Main.java:85)
              at org.apache.hive.hcatalog.templeton.Main.<init>(Main.java:80)
              at org.apache.hive.hcatalog.templeton.Main.main(Main.java:305)
              at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
              at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:606)
              at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
              at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
      Caused by: java.io.IOException: Message too long
              at java.net.PlainDatagramSocketImpl.send(Native Method)
              at java.net.DatagramSocket.send(DatagramSocket.java:698)
              at org.apache.logging.log4j.core.net.DatagramOutputStream.flush(DatagramOutputStream.java:103)
              at org.apache.logging.log4j.core.appender.OutputStreamManager.flush(OutputStreamManager.java:156)
              ... 26 more
      

      The syslog appender configuration used here is:

      status = INFO
      name = WebhcatLog4j2
      packages = org.apache.hadoop.hive.ql.log
      
      # list of properties
      property.webhcat.log.level = INFO
      property.webhcat.root.logger = SYSLOG
      #property.webhcat.log.dir = .
      #property.webhcat.log.file = webhcat.log
      
      # console appender
      appender.console.type = Console
      appender.console.name = console
      appender.console.target = SYSTEM_ERR
      appender.console.layout.type = PatternLayout
      appender.console.layout.pattern = %d{yy/MM/dd HH:mm:ss} [%t]: %p %c{2}: %m%n
      
      # syslog appender
      appender.SYSLOG.type = Syslog
      appender.SYSLOG.name = SYSLOG
      appender.SYSLOG.host = 127.0.0.1
      appender.SYSLOG.port = 514
      appender.SYSLOG.protocol = UDP
      appender.SYSLOG.facility = LOCAL1
      
      # list of all loggers
      loggers = Jersey, WebComponent, Hadoop, HadoopConf, Zookeeper, Jetty
      
      logger.Jersey.name = com.sun.jersey
      logger.Jersey.level = DEBUG
      
      logger.WebComponent.name = com.sun.jersey.spi.container.servlet.WebComponent
      logger.WebComponent.level = ERROR
      
      logger.Hadoop.name = org.apache.hadoop
      logger.Hadoop.level = INFO
      
      logger.HadoopConf.name = org.apache.hadoop.conf
      logger.HadoopConf.level = WARN
      
      logger.Zookeeper.name = org.apache.zookeeper
      logger.Zookeeper.level = WARN
      
      logger.Jetty.name = org.eclipse.jetty
      logger.Jetty.level = INFO
      
      # root logger
      rootLogger.level = ${sys:webhcat.log.level}
      rootLogger.appenderRefs = root
      rootLogger.appenderRef.root.ref = ${sys:webhcat.root.logger}
      

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            • Assignee:
              Unassigned
              Reporter:
              BigDataOrange Alexandre Linte
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              Dates

              • Created:
                Updated:
                Resolved: