could only be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s) running

Hadoop Java API 開發操作時hdfs 時出現如下錯誤: 先翻譯一把: could only be replicated to 0 nodes instead of minReplication (=1).  There are 1 datanode(s) running 只能複製到0個節點,而不是minReplication(=1)。有一個datanode(s)運行 就是說:多個no
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