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

2014-08-21 11:18 666 查看
报错如下

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)
解决办法：

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