[HDFS-5147] Certain dfsadmin commands such as safemode do not interact with the active namenode in ha setup

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.1.0-beta
• Component/s: ha
• Assignee: Unassigned
• Reporter: Arpit Gupta
• Created: 30/Aug/13 17:26
• Updated: 12/Jun/14 09:03

Description

There are certain commands in dfsadmin return the status of the first namenode specified in the configs rather than interacting with the active namenode

For example. Issue

hdfs dfsadmin -safemode get

and it will return the status of the first namenode in the configs rather than the active namenode.

I think all dfsadmin commands should determine which is the active namenode do the operation on it.

Issue Links

• incorporates: HDFS-6318 refreshServiceAcl cannot affect both active NN and standby NN
• is related to: HDFS-3507 DFS#isInSafeMode needs to execute only on Active NameNode