log4j:ERROR Could not instantiate class [org.apache.hadoop.hive.shims.HiveEventCounter].

去掉 hive-log4j.properties 配置文件 HIVE 将会报错，但是并不影响hive的使用：，

错误信息：

log4j:ERROR Could not instantiate class [org.apache.hadoop.hive.shims.HiveEventCounter].
java.lang.RuntimeException: Could not load shims in class org.apache.hadoop.log.metrics.EventCounter
        at org.apache.hadoop.hive.shims.ShimLoader.createShim(ShimLoader.java:123)
        at org.apache.hadoop.hive.shims.ShimLoader.loadShims(ShimLoader.java:115)
        at org.apache.hadoop.hive.shims.ShimLoader.getEventCounter(ShimLoader.java:98)
        at org.apache.hadoop.hive.shims.HiveEventCounter.<init>(HiveEventCounter.java:16)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at java.lang.Class.newInstance0(Class.java:355)
        at java.lang.Class.newInstance(Class.java:308)
        at org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:330)
        at org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConverter.java:121)
        at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:664)
        at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:647)
        at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:544)
        at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:440)
        at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:476)
        at org.apache.log4j.PropertyConfigurator.configure(PropertyConfigurator.java:354)
        at org.apache.hadoop.hive.common.LogUtils.initHiveLog4jDefault(LogUtils.java:124)
        at org.apache.hadoop.hive.common.LogUtils.initHiveLog4jCommon(LogUtils.java:77)
        at org.apache.hadoop.hive.common.LogUtils.initHiveLog4j(LogUtils.java:58)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:630)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:614)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:197)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.log.metrics.EventCounter
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:169)
        at org.apache.hadoop.hive.shims.ShimLoader.createShim(ShimLoader.java:120)
        ... 27 more
log4j:ERROR Could not instantiate appender named "EventCounter".

 

添加上hive-log4j.properties 配置文件之后错误将会消失。