org.apache.hadoop.log.metrics
Class EventCounter

java.lang.Object
  org.apache.log4j.AppenderSkeleton
      org.apache.hadoop.log.metrics.EventCounter

All Implemented Interfaces:

org.apache.log4j.Appender, org.apache.log4j.spi.OptionHandler

@InterfaceAudience.Public
@InterfaceStability.Stable
public class EventCounter
extends org.apache.log4j.AppenderSkeleton

A log4J Appender that simply counts logging events in three levels: fatal, error and warn. The class name is used in log4j.properties

Field Summary

Fields inherited from class org.apache.log4j.AppenderSkeleton

closed, errorHandler, headFilter, layout, name, tailFilter, threshold

Constructor Summary

EventCounter()

Method Summary

void	append(org.apache.log4j.spi.LoggingEvent event)
void	close()
boolean	requiresLayout()

Methods inherited from class org.apache.log4j.AppenderSkeleton

activateOptions, addFilter, clearFilters, doAppend, finalize, getErrorHandler, getFilter, getFirstFilter, getLayout, getName, getThreshold, isAsSevereAsThreshold, setErrorHandler, setLayout, setName, setThreshold

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EventCounter

public EventCounter()

Method Detail

append

public void append(org.apache.log4j.spi.LoggingEvent event)

Specified by:

append in class org.apache.log4j.AppenderSkeleton

close

public void close()

requiresLayout

public boolean requiresLayout()