http://123.123.123.123:50070/logs/
確定日誌中無報錯信息,有的話就先解決。
如 上述措施還不頂用
將mapred-site.xml中
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
屬性替換爲下面,然後重啓。
<property>
<name>mapreduce.job.tracker</name>
<value>hdfs://izbp1aiqq9qrjpvel26rx0z:8001</value>
<final>true</final>
</property>
運行
bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.5.0-cdh5.3.6.jar pi 4 100
bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.5.0-cdh5.3.6.jar wordcount /user/root/mapreduce/input /user/root/mapreduce/output
如果能正常運行OK!