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当节点数少于复制因子时,HDFS如何复制?(How does HDFS replicate when there are less nodes than the replication factor?)
当节点数少于复制因子时,HDFS如何复制?(How does HDFS replicate when there are less nodes than the replication factor?)
例如,如果Hadoop集群由2个DataNode组成,并且HDFS复制因子设置为默认值3,那么复制文件的默认行为是什么?
从我所看到的,似乎HDFS基于机架感知,但对于这样的情况,有谁知道它是如何确定的?
For instance, if a Hadoop cluster consisted of 2 DataNodes and the HDFS replication factor is set at the default of 3, what is the default behavior for how the files are replicated?
From what I've read, it seems that HDFS bases it on rack awareness, but for cases like this, does anyone know how it is determined?
原文:https://stackoverflow.com/questions/11552075
更新时间:2021-09-17 14:09
最满意答案
不会有这样的工作吗?
var inList = "(" + string.Join(", ", typeList.Select(t => "@" + t)) + ")";
编辑
根据你的评论,这个怎么样?
var inList = "(" + string.Join(", ", Enumerable.Range(1, argCount).Select(i +> "@type" + i)) + ")";
Won't something like this work?
var inList = "(" + string.Join(", ", typeList.Select(t => "@" + t)) + ")";
Edit
Based on your comment, how about this?
var inList = "(" + string.Join(", ", Enumerable.Range(1, argCount).Select(i +> "@type" + i)) + ")";
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