After adding new datanodes to the existing cluster and updating topology file. I am not able to refresh the namenode to pick up rack of the new node. It puts under `/default-rack`.
Anyway to refresh the rack topology changes without restarting namenodes?
For those who are looking for hdfs behind hbase solution. You can use Hbase favored node rack awareness, which depends on hdfs "net.topology.script.file.name" and more importantly refreshes dynamically. That worked for me perfectly.