hadoop - How redistribute data blocks after its reserved has been changed -


i have hadoop 2.7.1. , decided free couple gigs on 1 data node.

i changed hdfs-site.xml (defined dfs.datanode.du.reserved) on node , restarted datanode process.

hadoop datanode summary page started show node free space fallen 0 still don't notice data relocation.

what can relocated datablocks nodes off limit now.

i found command suits me:

$ hadoop/bin/hdfs balancer

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