cannot delete name node is in safe mode
2015-01-24 10:20
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问题: 向hdfs put数据的时候,导致了 name node is in safe mode,然后使用 hadoop dfsadmin -safemode leave 后, 解除了安全模式。可是再次使用hdfs put或rm数据,仍旧导致name node 进入安全模式。
答案:分析了一下,问题是namenode所在机器的硬盘满了。因此即使使用了 hadoop dfsadmin -safemode leave 之后, 仍旧不能使用hdfs。
解决办法:1,删除namenode所在机器的一些数据(本地数据)
2,结束安全模式 hadoop dfsadmin -safemode leave
3,可以正常使用hdfs了
答案:分析了一下,问题是namenode所在机器的硬盘满了。因此即使使用了 hadoop dfsadmin -safemode leave 之后, 仍旧不能使用hdfs。
解决办法:1,删除namenode所在机器的一些数据(本地数据)
2,结束安全模式 hadoop dfsadmin -safemode leave
3,可以正常使用hdfs了
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