hive WARNING: org.apache.hadoop.metrics.jvm.EventCounter is deprecated.

 安装hive-0.8.1以后。运行hive的时候经常会出现这样的日志警告

hadoop@hadoop-master:~/hadoop-1.0.1/conf$ hive
WARNING: org.apache.hadoop.metrics.jvm.EventCounter is deprecated. Please use org.apache.hadoop.log.metrics.EventCounter in all the log4j.properties files.
Logging initialized using configuration in jar:file:/home/hadoop/hadoop-1.0.1/contrib/hive/lib/hive-common-0.8.1.jar!/hive-log4j.properties
Hive history file=/tmp/hadoop/hive_job_log_hadoop_201205141112_539544268.txt
hive>

解决方法很简单。操作如下：

hadoop@hadoop-master:~/hadoop-1.0.1/contrib/hive/conf$ cp hive-exec-log4j.properties.template hive-exec-log4j.properties
hadoop@hadoop-master:~/hadoop-1.0.1/contrib/hive/conf$ sed -i '/log4j\.appender\.EventCounter/ s/org\.apache\.hadoop\.metrics\.jvm\.EventCounter/org\.apache\.hadoop.log\.metrics\.EventCounter/g' hive-exec-log4j.properties
#修改log4j.appender.EventCounter=org.apache.hadoop.metrics.jvm.EventCounter 为
log4j.appender.EventCounter=org.apache.hadoop.log.metrics.EventCounter

然后运行下hive

hadoop@hadoop-master:~/hadoop-1.0.1/contrib/hive/conf$ hive
Logging initialized using configuration in file:/home/hadoop/hadoop-1.0.1/contrib/hive/conf/hive-log4j.properties
Hive history file=/tmp/hadoop/hive_job_log_hadoop_201205141150_1475610732.txt
hive>

关于日志的警告消失了。