error: java.io.IOException: File /opt/data/hadoop/地图red/mrsystem/jobtracker.inf

error: java.io.IOException: File /opt/data/hadoop/mapred/mrsystem/jobtracker.inf

hadoop开启以root用户出错：

error: java.io.IOException: File /opt/data/hadoop/mapred/mrsystem/jobtracker.info could only be replicated to 0 nodes, instead of 1

解决方案：

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