[HDFS-4483] Refactor NN WebUI to no longer pass IP addresses in the URL

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Assignee: Andrew Wang
• Reporter: Andrew Wang
• Created: 08/Feb/13 18:12
• Updated: 31/Oct/16 20:03
• Resolved: 31/Oct/16 20:03

Description

Right now, the namenode passes its RPC address in WebUI URLs when it redirects to datanodes for things like browsing the filesystem. This is brittle and fails in different ways when wildcard addresses are configured (see HDFS-3932 and HDFS-4471).

A better solution would be to instead pass the NN's nameservice ID in the URL, and make DNs look up the appropriate RPC address for the nameservice from their conf. This fixes the wildcard issues and has the additional benefit of making browsing work after a NN failover.

Issue Links

• relates to: HDFS-3932 NameNode Web UI broken if the rpc-address is set to the wildcard
• relates to: HDFS-4471 Namenode WebUI file browsing does not work with wildcard addresses configured