[HDFS-2897] Enable a single 2nn to checkpoint multiple nameservices

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.23.0
• Component/s: namenode
• Target Version/s: 2.0.0-alpha
• Assignee: Unassigned
• Reporter: Eli Collins
• Created: 06/Feb/12 04:44
• Updated: 10/Mar/15 03:24

Description

The dfs.namenode.secondary.http-address needs to be suffixed with a particular nameservice. It would be useful to be able to be able to configure a single 2NN to checkpoint all the nameservices for a NN rather than having to run a separate 2NN per nameservice. It could potentially checkpoint all namenode IDs for a nameservice as well but given that the standby is capable of checkpointing and is required I think we can ignore this case.