hadoop项目开发运行报错(log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.Mut...

使用hadoop+myeclipse开发项目是测试运行报错: log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFactory). log4j:WARN Please initialize the log4j system properly. log4j:W
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