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  • Cannot initialize Cluster. Please check your configuration for mapreduce.framework.name and the co

    log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFactory).  
    log4j:WARN Please initialize the log4j system properly.  
    log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.  
    Exception in thread "main" java.io.IOException: Cannot initialize Cluster. Please check your configuration for mapreduce.framework.name and the correspond server addresses.  
        at org.apache.hadoop.mapreduce.Cluster.initialize(Cluster.java:120)  
        at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:82)  
        at org.apache.hadoop.mapreduce.Cluster.<init>(Cluster.java:75)  
        at org.apache.hadoop.mapreduce.Job$9.run(Job.java:1238)  
        at org.apache.hadoop.mapreduce.Job$9.run(Job.java:1234)  
        at java.security.AccessController.doPrivileged(Native Method)  
        at javax.security.auth.Subject.doAs(Unknown Source)  
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)  
        at org.apache.hadoop.mapreduce.Job.connect(Job.java:1233)  
        at org.apache.hadoop.mapreduce.Job.submit(Job.java:1262)  
        at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1286)  
        at com.gome.accesslog.statistic.WordCountExample.main(WordCountExample.java:72)  
    

      缺少Jar包:Hadoop-mapreduce-client-common-2.2.0.jar

    <!-- https://mvnrepository.com/artifact/org.apache.hadoop/hadoop-mapreduce-client-common -->
    	<dependency>
    	    <groupId>org.apache.hadoop</groupId>
    	    <artifactId>hadoop-mapreduce-client-common</artifactId>
    	    <version>2.6.4</version>
    	</dependency>
    	
    

      

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  • 原文地址:https://www.cnblogs.com/hxsyl/p/6145225.html
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