网站介绍：首先看一下选择复制源节点的源码： /** * Parse the data-nodes the block belongs to and choose one, * which will be the replication source. * * We prefer nodes that are in DECOMMISSION_INPROGRESS state to other nodes * since the former do not have write traf
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- 链接标题：HDFS的DN退役以及如何加快DN退役速度-CSDN博客
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