Details
-
Improvement
-
Status: Patch Available
-
Minor
-
Resolution: Unresolved
-
3.0.0-alpha1
-
None
Description
The network topology and dns to switch mapping are initialized at the start of the namenode.
If admin wants to change the topology because of new datanodes added, he has to stop and restart namenode(s), otherwise those new added datanodes are squeezed under /default-rack.
It is a low frequency operation, but it should be operated appropriately, so dfs admin should take the responsibility.
Attachments
Attachments
Issue Links
- is duplicated by
-
HDFS-16368 DFSAdmin supports refresh topology info without restarting namenode
- Patch Available
- relates to
-
HDFS-14635 Support to refresh the rack awareness dynamically
- Open
- links to