I'm in the trying to figure out how to decommission data nodes. Here's what
In hdfs-site.xml I have:
Add to exclude file:
Then I run 'hadoop dfsadmin -refreshNodes'. On the web interface the two
nodes now appear in both the 'Live Nodes' and 'Dead Nodes' (but there's
nothing in the Decommissioning Nodes list). If I look at the datanode logs
running on host1 or host2, I still see blocks being copied in and it does
not appear that any additional replication was happening.
What am I missing during the decommission process?