[jira] [Created] (HADOOP-17642) Could not instantiate class org.apache.hadoop.log.metrics.EventCounter

["Viraj Jasani (Jira)" <ji...@apache.org>]

Viraj Jasani created HADOOP-17642:
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             Summary: Could not instantiate class org.apache.hadoop.log.metrics.EventCounter
                 Key: HADOOP-17642
                 URL: https://issues.apache.org/jira/browse/HADOOP-17642
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Viraj Jasani
            Assignee: Viraj Jasani


After removal of EventCounter class, we are not able to bring up HDFS cluster.
{code:java}
log4j:ERROR Could not instantiate class [org.apache.hadoop.log.metrics.EventCounter].
java.lang.ClassNotFoundException: org.apache.hadoop.log.metrics.EventCounter
	at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:264)
	at org.apache.log4j.helpers.Loader.loadClass(Loader.java:198)
	at org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:327)
	at org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConverter.java:124)
	at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:785)
	at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:768)
	at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:648)
	at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:514)
	at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:580)
	at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:526)
	at org.apache.log4j.LogManager.<clinit>(LogManager.java:127)
	at org.slf4j.impl.Log4jLoggerFactory.<init>(Log4jLoggerFactory.java:66)
	at org.slf4j.impl.StaticLoggerBinder.<init>(StaticLoggerBinder.java:72)
	at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:45)
	at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)
	at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
	at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:417)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:362)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:388)
	at org.apache.hadoop.conf.Configuration.<clinit>(Configuration.java:229)
	at org.apache.hadoop.hdfs.tools.GetConf.<clinit>(GetConf.java:131)
log4j:ERROR Could not instantiate appender named "EventCounter".
{code}
We need to clean up log4j.properties to avoid instantiating appender EventCounter.



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